1115.6088.12-19- 1 Test and Measurement Division Operating Manual Software Options: GSM400/GT800/850/900/1800/1900-MS for CMU-B21 R&S CMU-K20/-K21/-K22/-K23/-K24/-K26 1115.5900.02/6007.02/6107.02/6207.02/6307.02/6507.02 Including the following extensions: GPRS/EGPRS Software Extension R&S CMU-K42/-K43 1115.4691.02/1115.6907.02 AMR GSM for CMU 200 R&S CMU-K45 1150.3100.02 R&S Smart Alignment @ GSM-MS R&S CMU-K47 1157.4477.02 Dual Transfer Mode R&S CMU-K44 1157.4277.02 Printed in Germany R&S is a registered trademark of Rohde & Schwarz GmbH & Co. KG. Trade names are trademarks of the owners. throughout this manual, CMU-K20 to CMU-K26 and CMU-K42 to CMU-K47 is generally used as an abbreviation for software options R&S CMU-K20 to R&S CMU-K26 and R&S CMU-K42 to R&S CMU-K47. The Universal Radio Communication Tester R&S CMU 200 is abbreviated as CMU200. Contents CMU-K20...-K26 1115.6088.12 RE.3 E-6 Tabbed Divider Overview Safety Instructions Certificate of Quality List of R&S Representatives Contents of Manuals for Universal Radio Communication Tester CMU Tabbed Divider 1 Chapter 1: Installation 2 Chapter 2: Getting Started 3 Chapter 3: Manual Operation 4 Chapter 4: Functions and their Application 5 Chapter 5: Remote Control Basics 6 Chapter 6: Remote Control Commands 7 Chapter 7: Remote Control Program Examples 8 Chapter 8: R&S Smart Alignment @ GSM-MS (R&S CMU-K47) 9 Chapter 9: Dual Transfer Mode (R&S CMU-K44) 10 Index CMU-K20...-K26 Models 1115.6088.12 RE.4 E-6 GSM Functionality of R&S CMU Models GSM-MS measurements can be performed with the following R&S CMU 200 models: Universal Radio Communication Tester R&S CMU 200, stock no. 1100.0008.02. If equipped with the appropriate options (as stated in the relevant sections), this model provides the full GSM-MS functionality described in this manual. All GSM and GSM-related options are supported by this R&S CMU model. High End Service Tester R&S CMU 200v10, stock no. 1100.0008.10. This model supports all GSM TX measurements. With option R&S CMU-B21 it also provides GSM/GPRS/EGPRS Signalling and RX tests. Optional extensions of the service tester are listed below; note that not all GSM options described in this manual are supported. Non Signalling Tester R&S CMU 200v30, stock no. 1100.0008.30. This model supports all GSM TX measurements in Non Signalling mode. The functionality of R&S CMU options which are particularly relevant for production (R&S CMU-K14, R&S CMU-K47, R&S CMU-K48) is included in the basic configuration of the non signalling tester. With option R&S CMU-B21 this model also provides a GSM generator with channel coding in order to perform single-ended RX tests (with mobile-assisted BER evaluation) and RX tests in reduced signalling mode (with BER evaluation by the R&S CMU). Optional extensions of the non signalling tester are listed below; note that not all GSM options described in this manual are supported. The different R&S CMU 200 models are also described in the product brochures. The high end service tester and the non signalling tester also support the WCDMA, CDMA2000/1xEV-DO, and AMPS network standards. For details refer to the relevant operating manuals. Table 1 Basic configuration and options for service tester R&S CMU 200v10 Functionality Option Remarks Basic configuration (included in GSM-MS software package for R&S CMU 200v10) GSM450-MS GSM900-MS GSM1800-MS GSM1900-MS GSM850-MS GPRS signalling EGPRS signalling Reference oscillator Corresponding R&S CMU 200 options: R&S CMU-K20 R&S CMU-K21 R&S CMU-K22 R&S CMU-K23 R&S CMU-K24 R&S CMU-K42 R&S CMU-K43 R&S CMU-B12 GSM/GPRS/EGPRS signalling requires universal signalling unit, option R&S CMU-B21 var. 54 OXCO, aging 3.5*108/year Additional options Universal signalling unit R&S CMU-B21 var. 54 Required for GSM/GPRS/EGPRS signalling Audio generator and analyzer R&S CMU-B41 Speech codec R&S CMU-B52 Requires option R&S CMU-B21 var. 54 Additional RF generator R&S CMU-B95 or R&S CMU-B96 Recommended for GPRS/EGPRS signalling Models CMU-K20...-K26 1115.6088.12 RE.5 E-6 Table 2 Basic configuration and options for non signalling tester R&S CMU 200v30 Functionality Option Remarks Basic configuration (included in GSM-MS software package for R&S CMU 200v30) GSM450-MS GSM900-MS GSM1800-MS GSM1900-MS GSM850-MS FM stereo transmitter R&S smart alignment I/Q versus slot Corresponding R&S CMU 200 options: R&S CMU-K20 R&S CMU-K21 R&S CMU-K22 R&S CMU-K23 R&S CMU-K24 R&S CMU-K14 R&S CMU-K47 R&S CMU-K48 GSM non signalling measurements (TX) Extended functionality, relevant for production tests Additional options Universal signalling unit R&S CMU-B21 var. 54 Required for GSM generator with channel coding (single-ended BER tests, BER tests in reduced signalling mode) Audio generator and analyzer R&S CMU-B41 Reference oscillator R&S CMU-B11 R&S CMU-B12 OXCO, aging 2*107/year OXCO, aging 3.5*108/year Grouped Safety Messages Make sure to read through and observe the following safety instructions! All plants and locations of the Rohde & Schwarz group of companies make every effort to keep the safety standard of our products up to date and to offer our customers the highest possible degree of safety. Our products and the auxiliary equipment required for them are designed and tested in accordance with the relevant safety standards. Compliance with these standards is continuously monitored by our quality assurance system. The product described here has been designed and tested in accordance with the EC Certificate of Conformity and has left the manufacturers plant in a condition fully complying with safety standards. To maintain this condition and to ensure safe operation, observe all instructions and warnings provided in this manual. If you have any questions regarding these safety instructions, the Rohde & Schwarz group of companies will be happy to answer them. Furthermore, it is your responsibility to use the product in an appropriate manner. This product is designed for use solely in industrial and laboratory environments or, if expressly permitted, also in the field and must not be used in any way that may cause personal injury or property damage. You are responsible if the product is used for an intention other than its designated purpose or in disregard of the manufacturer's instructions. The manufacturer shall assume no responsibility for such use of the product. The product is used for its designated purpose if it is used in accordance with its product documentation and within its performance limits (see data sheet, documentation, the following safety instructions). Using the product requires technical skills and a basic knowledge of English. It is therefore essential that only skilled and specialized staff or thoroughly trained personnel with the required skills be allowed to use the product. If personal safety gear is required for using Rohde & Schwarz products, this will be indicated at the appropriate place in the product documentation. Keep the basic safety instructions and the product documentation in a safe place and pass them on to the subsequent users. Symbols and safety labels Observe product documentation Weight indication for units >18 kg Danger of electric shock Warning! Hot surface PE terminal Ground Ground terminal Attention! Electrostatic sensitive devices Supply voltage ON/OFF Standby indication Direct current (DC) Alternating current (AC) Direct/alternating current (DC/AC) Device fully protected by double/reinforced insulation Observing the safety instructions will help prevent personal injury or damage of any kind caused by dangerous situations. Therefore, carefully read through and adhere to the following safety instructions before putting the product into operation. It is also absolutely essential to observe the additional safety instructions on personal safety that appear in relevant parts of the product documentation. In these safety instructions, the word "product" refers to all merchandise sold and distributed by the Rohde & Schwarz group of companies, including instruments, systems and all accessories. 1171.0000.42-04.00 Sheet 1 Grouped Safety Messages Tags and their meaning DANGER DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury. WARNING WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury. CAUTION CAUTION indicates a hazardous situation which, if not avoided, may result in minor or moderate injury. NOTICE NOTICE indicates a property damage message. In the product documentation, the word ATTENTION is used synonymously. These tags are in accordance with the standard definition for civil applications in the European Economic Area. Definitions that deviate from the standard definition may also exist in other economic areas or military applications. It is therefore essential to make sure that the tags described here are always used only in connection with the related product documentation and the related product. The use of tags in connection with unrelated products or documentation can result in misinterpretation and thus contribute to personal injury or material damage. Basic safety instructions 1. The product may be operated only under the operating conditions and in the positions specified by the manufacturer. Its ventilation must not be obstructed during operation. Unless otherwise specified, the following requirements apply to Rohde & Schwarz products: prescribed operating position is always with the housing floor facing down, IP protection 2X, pollution severity 2, overvoltage category 2, use only in enclosed spaces, max. operation altitude 2000 m above sea level, max. transport altitude 4500 m above sea level. A tolerance of 10% shall apply to the nominal voltage and of 5% to the nominal frequency. Rohde & Schwarz. Only original parts may be used for replacing parts relevant to safety (e.g. power switches, power transformers, fuses). A safety test must always be performed after parts relevant to safety have been replaced (visual inspection, PE conductor test, insulation resistance measurement, leakage current measurement, functional test). 3. As with all industrially manufactured goods, the use of substances that induce an allergic reaction (allergens, e.g. nickel) such as aluminum cannot be generally excluded. If you develop an allergic reaction (such as a skin rash, frequent sneezing, red eyes or respiratory difficulties), consult a physician immediately to determine the cause. 2. Applicable local or national safety regulations and rules for the prevention of accidents must be observed in all work performed. The product may be opened only by authorized, specially trained personnel. Prior to performing any work on the product or opening the product, the product must be disconnected from the supply network. Any adjustments, replacements of parts, maintenance or repair must be carried out only by technical personnel authorized by 4. If products/components are mechanically and/or thermically processed in a manner that goes beyond their intended use, hazardous substances (heavy-metal dust such as lead, beryllium, nickel) may be released. For this reason, the product may only be disassembled, e.g. for disposal purposes, by specially trained personnel. Improper disassembly may be hazardous to your health. National waste disposal regulations must be observed. 1171.0000.42-04.00 Sheet 2 Grouped Safety Messages of the connecting cable is regarded as the disconnecting device. In such cases, it must be ensured that the power plug is easily reachable and accessible at all times (corresponding to the length of connecting cable, approx. 2 m). Functional or electronic switches are not suitable for providing disconnection from the AC supply. If products without power switches are integrated in racks or systems, a disconnecting device must be provided at the system level. 5. If handling the product yields hazardous substances or fuels that must be disposed of in a special way, e.g. coolants or engine oils that must be replenished regularly, the safety instructions of the manufacturer of the hazardous substances or fuels and the applicable regional waste disposal regulations must be observed. Also observe the relevant safety instructions in the product documentation. 6. Depending on the function, certain products such as RF radio equipment can produce an elevated level of electromagnetic radiation. Considering that unborn life requires increased protection, pregnant women should be protected by appropriate measures. Persons with pacemakers may also be endangered by electromagnetic radiation. The employer/operator is required to assess workplaces where there is a special risk of exposure to radiation and, if necessary, take measures to avert the danger. 12. Never use the product if the power cable is damaged. Check the power cable on a regular basis to ensure that it is in proper operating condition. By taking appropriate safety measures and carefully laying the power cable, ensure that the cable cannot be damaged and that no one can be hurt by e.g. tripping over the cable or suffering an electric shock. 13. The product may be operated only from TN/TT supply networks fused with max. 16 A (higher fuse only after consulting with the Rohde & Schwarz group of companies). 7. Operating the products requires special training and intense concentration. Make certain that persons who use the products are physically, mentally and emotionally fit enough to handle operating the products; otherwise injuries or material damage may occur. It is the responsibility of the employer to select suitable personnel for operating the products. 14. Do not insert the plug into sockets that are dusty or dirty. Insert the plug firmly and all the way into the socket. Otherwise, this can result in sparks, fire and/or injuries. 15. Do not overload any sockets, extension cords or connector strips; doing so can cause fire or electric shocks. 8. Prior to switching on the product, it must be ensured that the nominal voltage setting on the product matches the nominal voltage of the AC supply network. If a different voltage is to be set, the power fuse of the product may have to be changed accordingly. 16. For measurements in circuits with voltages Vrms > 30 V, suitable measures (e.g. appropriate measuring equipment, fusing, current limiting, electrical separation, insulation) should be taken to avoid any hazards. 9. In the case of products of safety class I with movable power cord and connector, operation is permitted only on sockets with earthing contact and protective earth connection. 17. Ensure that the connections with information technology equipment comply with IEC 950/EN 60950. 18. Unless expressly permitted, never remove the cover or any part of the housing while the product is in operation. Doing so will expose circuits and components and can lead to injuries, fire or damage to the product. 10. Intentionally breaking the protective earth connection either in the feed line or in the product itself is not permitted. Doing so can result in the danger of an electric shock from the product. If extension cords or connector strips are implemented, they must be checked on a regular basis to ensure that they are safe to use. 19. If a product is to be permanently installed, the connection between the PE terminal on site and the product's PE conductor must be made first before any other connection is made. The product may be installed and connected only by a license electrician. 11. If the product has no power switch for disconnection from the AC supply, the plug 1171.0000.42-04.00 Sheet 3 Grouped Safety Messages 20. For permanently installed equipment without built-in fuses, circuit breakers or similar protective devices, the supply circuit must be fused in such a way that suitable protection is provided for users and products. 21. Do not insert any objects into the openings in the housing that are not designed for this purpose. Never pour any liquids onto or into the housing. This can cause short circuits inside the product and/or electric shocks, fire or injuries. 22. Use suitable overvoltage protection to ensure that no overvoltage (such as that caused by a thunderstorm) can reach the product. Otherwise the operating personnel will be endangered by electric shocks. 23. Rohde & Schwarz products are not protected against penetration of liquids, unless otherwise specified (see also safety instruction 1.). If this is not taken into account, there exists the danger of electric shock for the user or damage to the product, which can also lead to personal injury. 24. Never use the product under conditions in which condensation has formed or can form in or on the product, e.g. if the product was moved from a cold to a warm environment. 25. Do not close any slots or openings on the product, since they are necessary for ventilation and prevent the product from overheating. Do not place the product on soft surfaces such as sofas or rugs or inside a closed housing, unless this is well ventilated. 26. Do not place the product on heat-generating devices such as radiators or fan heaters. The temperature of the environment must not exceed the maximum temperature specified in the data sheet. 27. Batteries and storage batteries must not be exposed to high temperatures or fire. Keep batteries and storage batteries away from children. Do not short-circuit batteries and storage batteries. If batteries or storage batteries are improperly replaced, this can cause an explosion (warning: lithium cells). Replace the battery or storage battery only with the matching Rohde & Schwarz type (see spare parts list). Batteries and storage batteries must be recycled and kept separate from residual waste. Batteries and storage batteries that contain lead, mercury or cadmium are hazardous waste. Observe the national regulations regarding waste disposal and recycling. 28. Please be aware that in the event of a fire, toxic substances (gases, liquids etc.) that may be hazardous to your health may escape from the product. 29. The product can be very heavy. Be careful when moving it to avoid back or other physical injuries. 30. Do not place the product on surfaces, vehicles, cabinets or tables that for reasons of weight or stability are unsuitable for this purpose. Always follow the manufacturer's installation instructions when installing the product and fastening it to objects or structures (e.g. walls and shelves). 31. Handles on the products are designed exclusively for personnel to hold or carry the product. It is therefore not permissible to use handles for fastening the product to or on means of transport such as cranes, fork lifts, wagons, etc. The user is responsible for securely fastening the products to or on the means of transport and for observing the safety regulations of the manufacturer of the means of transport. Noncompliance can result in personal injury or material damage. 32. If you use the product in a vehicle, it is the sole responsibility of the driver to drive the vehicle safely. Adequately secure the product in the vehicle to prevent injuries or other damage in the event of an accident. Never use the product in a moving vehicle if doing so could distract the driver of the vehicle. The driver is always responsible for the safety of the vehicle. The manufacturer assumes no responsibility for accidents or collisions. 33. If a laser product (e.g. a CD/DVD drive) is integrated in a Rohde & Schwarz product, do not use any other settings or functions than those described in the product documen-tation. Otherwise this may be hazardous to your health, since the laser beam can cause irreversible damage to your eyes. Never try to take such products apart, and never look into the laser beam. 34. Prior to cleaning, disconnect the product from the AC supply. Use a soft, non-linting cloth to clean the product. Never use chemical cleaning agents such as alcohol, acetone or diluent for cellulose lacquers. 1171.0000.42-04.00 Sheet 4 Informaciones elementales de seguridad Es imprescindible leer y observar las siguientes instrucciones e informaciones de seguridad! El principio del grupo de empresas Rohde & Schwarz consiste en tener nuestros productos siempre al da con los estndares de seguridad y de ofrecer a nuestros clientes el mximo grado de seguridad. Nuestros productos y todos los equipos adicionales son siempre fabricados y examinados segn las normas de seguridad vigentes. Nuestra seccin de gestin de la seguridad de calidad controla constantemente que sean cumplidas estas normas. El presente producto ha sido fabricado y examinado segn el comprobante de conformidad adjunto segn las normas de la CE y ha salido de nuestra planta en estado impecable segn los estndares tcnicos de seguridad. Para poder preservar este estado y garantizar un funcionamiento libre de peligros, el usuario deber atenerse a todas las indicaciones, informaciones de seguridad y notas de alerta. El grupo de empresas Rohde & Schwarz est siempre a su disposicin en caso de que tengan preguntas referentes a estas informaciones de seguridad. Adems queda en la responsabilidad del usuario utilizar el producto en la forma debida. Este producto est destinado exclusivamente al uso en la industria y el laboratorio o, si ha sido expresamente autorizado, para aplicaciones de campo y de ninguna manera deber ser utilizado de modo que alguna persona/cosa pueda sufrir dao. El uso del producto fuera de sus fines definidos o despreciando las informaciones de seguridad del fabricante queda en la responsabilidad del usuario. El fabricante no se hace en ninguna forma responsable de consecuencias a causa del mal uso del producto. Se parte del uso correcto del producto para los fines definidos si el producto es utilizado dentro de las instrucciones de la correspondiente documentacin de producto y dentro del margen de rendimiento definido (ver hoja de datos, documentacin, informaciones de seguridad que siguen). El uso del producto hace necesarios conocimientos profundos y conocimientos bsicas del idioma ingls. Por eso se debe tener en cuenta que el producto slo pueda ser operado por personal especializado o personas minuciosamente instruidas con las capacidades correspondientes. Si fuera necesaria indumentaria de seguridad para el uso de productos de R&S, encontrar la informacin debida en la documentacin del producto en el captulo correspondiente. Guarde bien las informaciones de seguridad elementales, as como la documentacin del producto y entrguela a usuarios posteriores. Smbolos y definiciones de seguridad Ver documen-tacin de producto Informaciones para maquinaria con un peso de > 18kg Peligro de golpe de corriente Advertencia! Superficie caliente Conexin a conductor protector Conexin a tierra Conexin a masa conductora Cuidado! Elementos de construccin con peligro de carga electroesttica Potencia EN MARCHA/PARADA Indicacin Stand-by Corriente continua DC Corriente alterna AC Corriente continua/-alterna DC/AC El aparato est protegido en su totalidad por un aislamiento de doble refuerzo 1171.0000.42-04.00 Sheet 5 Informaciones elementales de seguridad Tener en cuenta las informaciones de seguridad sirve para tratar de evitar daos y peligros de toda clase. Es necesario de que se lean las siguientes informaciones de seguridad concienzudamente y se tengan en cuenta debidamente antes de la puesta en funcionamiento del producto. Tambin debern ser tenidas en cuenta las informaciones para la proteccin de personas que encontrarn en el captulo correspondiente de la documentacin de producto y que tambin son obligatorias de seguir. En las informaciones de seguridad actuales hemos juntado todos los objetos vendidos por el grupo de empresas Rohde & Schwarz bajo la denominacin de producto, entre ellos tambin aparatos, instalaciones as como toda clase de accesorios. Palabras de seal y su significado PELIGRO Identifica un peligro directo con riesgo elevado de provocar muerte o lesiones de gravedad si no se toman las medidas oportunas. ADVERTENCIA Identifica un posible peligro con riesgo medio de provocar muerte o lesiones (de gravedad) si no se toman las medidas oportunas. ATENCIN Identifica un peligro con riesgo reducido de provocar lesiones de gravedad media o leve si no se toman las medidas oportunas. AVISO Indica la posibilidad de utilizar mal el producto y a consecuencia daarlo. En la documentacin del producto se emplea de forma sinnima el trmino CUIDADO. Las palabras de seal corresponden a la definicin habitual para aplicaciones civiles en el rea econmica europea. Pueden existir definiciones diferentes a esta definicin en otras reas econmicas o en aplicaciones militares. Por eso se deber tener en cuenta que las palabras de seal aqu descritas sean utilizadas siempre solamente en combinacin con la correspondiente documentacin de producto y solamente en combinacin con el producto correspondiente. La utilizacin de las palabras de seal en combinacin con productos o documentaciones que no les correspondan puede llevar a malinterpretaciones y tener por consecuencia daos en personas u objetos. Informaciones de seguridad elementales trabajo y de prevencin de accidentes. El producto solamente debe de ser abierto por personal especializado autorizado. Antes de efectuar trabajos en el producto o abrirlo deber este ser desconectado de la corriente. El ajuste, el cambio de partes, la manutencin y la reparacin debern ser solamente efectuadas por electricistas autorizados por R&S. Si se reponen partes con importancia para los aspectos de seguridad (por ejemplo el enchufe, los transformadores o los fusibles), solamente podrn ser sustituidos por partes originales. Despus de cada recambio de partes elementales para la seguridad deber ser efectuado un control de seguridad (control a primera vista, control de conductor protector, medicin de resistencia de aislamiento, medicin de la corriente conductora, control de funcionamiento). 1. El producto solamente debe ser utilizado segn lo indicado por el fabricante referente a la situacin y posicin de funcionamiento sin que se obstruya la ventilacin. Si no se convino de otra manera, es para los productos R&S vlido lo que sigue: como posicin de funcionamiento se define por principio la posicin con el suelo de la caja para abajo, modo de proteccin IP 2X, grado de suciedad 2, categora de sobrecarga elctrica 2, utilizar solamente en estancias interiores, utilizacin hasta 2000 m sobre el nivel del mar, transporte hasta 4.500 m sobre el nivel del mar. Se aplicar una tolerancia de 10% sobre el voltaje nominal y de 5% sobre la frecuencia nominal. 2. En todos los trabajos debern ser tenidas en cuenta las normas locales de seguridad de 1171.0000.42-04.00 Sheet 6 Informaciones elementales de seguridad 3. Como en todo producto de fabricacin industrial no puede ser excluido en general de que se produzcan al usarlo elementos que puedan generar alergias, los llamados elementos alergnicos (por ejemplo el nquel). Si se producieran en el trato con productos R&S reacciones alrgicas, como por ejemplo urticaria, estornudos frecuentes, irritacin de la conjuntiva o dificultades al respirar, se deber consultar inmediatamente a un mdico para averiguar los motivos de estas reacciones. 4. Si productos / elementos de construccin son tratados fuera del funcionamiento definido de forma mecnica o trmica, pueden generarse elementos peligrosos (polvos de sustancia de metales pesados como por ejemplo plomo, berilio, nquel). La particin elemental del producto, como por ejemplo sucede en el tratamiento de materias residuales, debe de ser efectuada solamente por personal especializado para estos tratamientos. La particin elemental efectuada inadecuadamente puede generar daos para la salud. Se deben tener en cuenta las directivas nacionales referentes al tratamiento de materias residuales. 5. En el caso de que se produjeran agentes de peligro o combustibles en la aplicacin del producto que debieran de ser transferidos a un tratamiento de materias residuales, como por ejemplo agentes refrigerantes que deben ser repuestos en periodos definidos, o aceites para motores, debern ser tenidas en cuenta las prescripciones de seguridad del fabricante de estos agentes de peligro o combustibles y las regulaciones regionales para el tratamiento de materias residuales. Cuiden tambin de tener en cuenta en caso dado las prescripciones de seguridad especiales en la descripcin del producto. 6. Ciertos productos, como por ejemplo las instalaciones de radiocomunicacin RF, pueden a causa de su funcin natural, emitir una radiacin electromagntica aumentada. En vista a la proteccin de la vida en desarrollo deberan ser protegidas personas embarazadas debidamente. Tambin las personas con un bypass pueden correr peligro a causa de la radiacin electromagntica. El empresario/usuario est comprometido a valorar y sealar reas de trabajo en las que se corra un riesgo aumentado de exposicin a radiaciones para evitar riesgos. 7. La utilizacin de los productos requiere instrucciones especiales y una alta concentracin en el manejo. Debe de ponerse por seguro de que las personas que manejen los productos estn a la altura de los requerimientos necesarios referente a sus aptitudes fsicas, psquicas y emocionales, ya que de otra manera no se pueden excluir lesiones o daos de objetos. El empresario lleva la responsabilidad de seleccionar el personal usuario apto para el manejo de los productos. 8. Antes de la puesta en marcha del producto se deber tener por seguro de que la tensin preseleccionada en el producto equivalga a la del la red de distribucin. Si es necesario cambiar la preseleccin de la tensin tambin se debern en caso dabo cambiar los fusibles correspondientes del producto. 9. Productos de la clase de seguridad I con alimentacin mvil y enchufe individual de producto solamente debern ser conectados para el funcionamiento a tomas de corriente de contacto de seguridad y con conductor protector conectado. 10. Queda prohibida toda clase de interrupcin intencionada del conductor protector, tanto en la toma de corriente como en el mismo producto. Puede tener como consecuencia el peligro de golpe de corriente por el producto. Si se utilizaran cables o enchufes de extensin se deber poner al seguro que es controlado su estado tcnico de seguridad. 11. Si el producto no est equipado con un interruptor para desconectarlo de la red, se deber considerar el enchufe del cable de distribucin como interruptor. En estos casos deber asegurar de que el enchufe sea de fcil acceso y nabejo (segn la medida del cable de distribucin, aproximadamente 2 m). Los interruptores de funcin o electrnicos no son aptos para el corte de la red elctrica. Si los productos sin interruptor estn integrados en bastidores o instalaciones, se deber instalar el interruptor al nivel de la instalacin. 1171.0000.42-04.00 Sheet 7 Informaciones elementales de seguridad 20. En caso de que los productos que son instalados fijamente en un lugar sean sin protector implementado, autointerruptor o similares objetos de proteccin, el circuito de suministro de corriente deber estar protegido de manera que usuarios y productos estn suficientemente protegidos. 12. No utilice nunca el producto si est daado el cable elctrico. Compruebe regularmente el correcto estado de los cables de conexin a red. Asegure a travs de las medidas de proteccin y de instalacin adecuadas de que el cable de elctrico no pueda ser daado o de que nadie pueda ser daado por l, por ejemplo al tropezar o por un golpe de corriente. 21. Por favor, no introduzca ningn objeto que no est destinado a ello en los orificios de la caja del aparato. No vierta nunca ninguna clase de lquidos sobre o en la caja. Esto puede producir cortocircuitos en el producto y/o puede causar golpes de corriente, fuego o heridas. 13. Solamente est permitido el funcionamiento en redes de distribucin TN/TT aseguradas con fusibles de como mximo 16 A (utilizacin de fusibles de mayor amperaje slo previa consulta con el grupo de empresas Rohde & Schwarz). 22. Asegrese con la proteccin adecuada de que no pueda originarse en el producto una sobrecarga por ejemplo a causa de una tormenta. Si no se ver el personal que lo utilice expuesto al peligro de un golpe de corriente. 14. Nunca conecte el enchufe en tomas de corriente sucias o llenas de polvo. Introduzca el enchufe por completo y fuertemente en la toma de corriente. Si no tiene en consideracin estas indicaciones se arriesga a que se originen chispas, fuego y/o heridas. 23. Los productos R&S no estn protegidos contra lquidos si no es que exista otra indicacin, ver tambin punto 1. Si no se tiene en cuenta esto se arriesga el peligro de golpe de corriente para el usuario o de daos en el producto lo cual tambin puede llevar al peligro de personas. 15. No sobrecargue las tomas de corriente, los cables de extensin o los enchufes de extensin ya que esto pudiera causar fuego o golpes de corriente. 16. En las mediciones en circuitos de corriente con una tensin de entrada de Ueff > 30 V se deber tomar las precauciones debidas para impedir cualquier peligro (por ejemplo medios de medicin adecuados, seguros, limitacin de tensin, corte protector, aislamiento etc.). 24. No utilice el producto bajo condiciones en las que pueda producirse y se hayan producido lquidos de condensacin en o dentro del producto como por ejemplo cuando se desplaza el producto de un lugar fro a un lugar caliente. 17. En caso de conexin con aparatos de la tcnica informtica se deber tener en cuenta que estos cumplan los requisitos del estndar IEC950/EN60950. 25. Por favor no cierre ninguna ranura u orificio del producto, ya que estas son necesarias para la ventilacin e impiden que el producto se caliente demasiado. No pongan el producto encima de materiales blandos como por ejemplo sofs o alfombras o dentro de una caja cerrada, si esta no est suficientemente ventilada. 18. A menos que est permitido expresamente, no retire nunca la tapa ni componentes de la carcasa mientras el producto est en servicio. Esto pone a descubierto los cables y componentes elctricos y puede causar heridas, fuego o daos en el producto. 26. No ponga el producto sobre aparatos que produzcan calor, como por ejemplo radiadores o calentadores. La temperatura ambiental no debe superar la temperatura mxima especificada en la hoja de datos. 19. Si un producto es instalado fijamente en un lugar, se deber primero conectar el conductor protector fijo con el conductor protector del aparato antes de hacer cualquier otra conexin. La instalacin y la conexin debern ser efectuadas por un electricista especializado. 1171.0000.42-04.00 Sheet 8 Informaciones elementales de seguridad 1171.0000.42-04.00 Sheet 9 27. Bateras y acumuladores no deben de ser expuestos a temperaturas altas o al fuego. Guardar bateras y acumuladores fuera del alcance de los nios. No cortocircuitar bateras ni acumuladores. Si las bateras o los acumuladores no son cambiados con la debida atencin existir peligro de explosin (atencin clulas de litio). Cambiar las bateras o los acumuladores solamente por los del tipo R&S correspondiente (ver lista de piezas de recambio). Las bateras y acumuladores deben reutilizarse y no deben acceder a los vertederos. Las bateras y acumuladores que contienen plomo, mercurio o cadmio deben tratarse como residuos especiales. Respete en esta relacin las normas nacionales de evacuacin y reciclaje. 28. Por favor tengan en cuenta que en caso de un incendio pueden desprenderse del producto agentes venenosos (gases, lquidos etc.) que pueden generar daos a la salud. 29. El producto puede poseer un peso elevado. Muvalo con cuidado para evitar lesiones en la espalda u otras partes corporales. 30. No site el producto encima de superficies, vehculos, estantes o mesas, que por sus caractersticas de peso o de estabilidad no sean aptas para l. Siga siempre las instrucciones de instalacin del fabricante cuando instale y asegure el producto en objetos o estructuras (por ejemplo paredes y estantes). 31. Las asas instaladas en los productos sirven solamente de ayuda para el manejo que solamente est previsto para personas. Por eso no est permitido utilizar las asas para la sujecin en o sobre medios de transporte como por ejemplo gras, carretillas elevadoras de horquilla, carros etc. El usuario es responsable de que los productos sean sujetados de forma segura a los medios de transporte y de que las prescripciones de seguridad del fabricante de los medios de transporte sean observadas. En caso de que no se tengan en cuenta pueden causarse daos en personas y objetos. 32. Si llega a utilizar el producto dentro de un vehculo, queda en la responsabilidad absoluta del conductor que conducir el vehculo de manera segura. Asegure el producto dentro del vehculo debidamente para evitar en caso de un accidente las lesiones u otra clase de daos. No utilice nunca el producto dentro de un vehculo en movimiento si esto pudiera distraer al conductor. Siempre queda en la responsabilidad absoluta del conductor la seguridad del vehculo. El fabricante no asumir ninguna clase de responsabilidad por accidentes o colisiones. 33. Dado el caso de que est integrado un producto de lser en un producto R&S (por ejemplo CD/DVD-ROM) no utilice otras instalaciones o funciones que las descritas en la documentacin de producto. De otra manera pondr en peligro su salud, ya que el rayo lser puede daar irreversiblemente sus ojos. Nunca trate de descomponer estos productos. Nunca mire dentro del rayo lser. 34. Antes de proceder a la limpieza, desconecte el producto de la red. Realice la limpieza con un pao suave, que no se deshilache. No utilice de ninguna manera agentes limpiadores qumicos como, por ejemplo, alcohol, acetona o nitrodiluyente. 1171.0200.11-02.00DIN EN ISO 9001 : 2000DIN EN 9100 : 2003DIN EN ISO 14001 : 2004DQS REG. NO 001954 QM UMCertified Quality System Sehr geehrter Kunde,Sie haben sich fr den Kauf eines Rohde&Schwarz-Produktes entschie-den. Hiermit erhalten Sie ein nach modernsten Fertigungsmethoden hergestelltes Produkt. Es wurde nach den Regeln unseres Management-systems entwickelt, gefertigt und geprft. Das Rohde&Schwarz Management-system ist zertifiziert nach:DIN EN ISO 9001:2000DIN EN 9100:2003DIN EN ISO 14001:2004Dear Customer,you have decided to buy a Rohde&Schwarz product. You are thus as-sured of receiving a product that is manufactured using the most modern methods available. This product was developed, manufactured and tested in compliance with our quality manage-ment system standards. The Rohde&Schwarz quality manage-ment system is certified according to:DIN EN ISO 9001:2000DIN EN 9100:2003DIN EN ISO 14001:2004Cher Client,vous avez choisi dacheter un produitRohde&Schwarz. Vous disposez donc dun produit fabriqu daprs les mthodes les plus avances. Le dveloppement, la fabrication et les tests respectent nos normes de ges-tion qualit. Le systme de gestion qualit de Rohde&Schwarz a t homologu conformment aux normes:DIN EN ISO 9001:2000DIN EN 9100:2003DIN EN ISO 14001:2004QUALITTSZERTIFIKAT CERTIFICATE OF QUALITY CERTIFICAT DE QUALIT 1171.0200.22-02.00 Customer Support Technical support where and when you need it For quick, expert help with any Rohde & Schwarz equipment, contact one of our Customer Support Centers. A team of highly qualified engineers provides telephone support and will work with you to find a solution to your query on any aspect of the operation, programming or applications of Rohde & Schwarz equipment. Up-to-date information and upgrades To keep your instrument up-to-date and to be informed about new application notes related to your instrument, please send an e-mail to the Customer Support Center stating your instrument and your wish. We will take care that you will get the right information. USA & Canada Monday to Friday (except US public holidays) 8:00 AM 8:00 PM Eastern Standard Time (EST) Tel. from USA 888-test-rsa (888-837-8772) (opt 2) From outside USA +1 410 910 7800 (opt 2) Fax +1 410 910 7801 E-mail CustomerSupport@rohde-schwarz.com East Asia Monday to Friday (except Singaporean public holidays) 8:30 AM 6:00 PM Singapore Time (SGT) Tel. +65 6 513 0488 Fax +65 6 846 1090 E-mail CustomerSupport@rohde-schwarz.com Rest of the World Monday to Friday (except German public holidays) 08:00 17:00 Central European Time (CET) Tel. from Europe +49 (0) 180 512 42 42* From outside Europe +49 89 4129 13776 Fax +49 (0) 89 41 29 637 78 E-mail CustomerSupport@rohde-schwarz.com * 0.14 /Min within the German fixed-line telephone network, varying prices for the mobile telephone network and in different countries. 1171.0200.42-02.001212Address ListHeadquarters, Plants and SubsidiariesHeadquartersROHDE&SCHWARZ GmbH & Co. KGMhldorfstrae 15 D-81671 MnchenP.O.Box 80 14 69 D-81614 MnchenPlantsROHDE&SCHWARZ Messgertebau GmbHRiedbachstrae 58 D-87700 MemmingenP.O.Box 16 52 D-87686 MemmingenROHDE&SCHWARZ GmbH & Co. KGWerk TeisnachKaikenrieder Strae 27 D-94244 TeisnachP.O.Box 11 49 D-94240 Teisnach ROHDE&SCHWARZ zvodVimperk, s.r.o.Location Spidrova 49CZ-38501 Vimperk ROHDE&SCHWARZ GmbH & Co. KGDienstleistungszentrum KlnGraf-Zeppelin-Strae 18 D-51147 KlnP.O.Box 98 02 60 D-51130 KlnSubsidiariesR&S BICK Mobilfunk GmbH Fritz-Hahne-Str. 7 D-31848 Bad Mnder P.O.Box 20 02 D-31844 Bad MnderROHDE&SCHWARZ FTK GmbH Wendenschlostrae 168, Haus 28 D-12557 BerlinROHDE&SCHWARZ SIT GmbHAm Studio 3D-12489 BerlinR&S Systems GmbHGraf-Zeppelin-Strae 18D-51147 KlnGEDIS GmbHSophienblatt 100D-24114 KielHAMEG Instruments GmbHIndustriestrae 6D-63533 MainhausenLocations WorldwidePlease refer to our homepage: www.rohde-schwarz.comSales LocationsService LocationsNational WebsitesPhone +49 (89) 41 29-0Fax +49 (89) 41 29-121 64info.rs@rohde-schwarz.comPhone +49 (83 31) 1 08-0+49 (83 31) 1 08-1124info.rsmb@rohde-schwarz.comPhone +49 (99 23) 8 50-0Fax +49 (99 23) 8 50-174info.rsdts@rohde-schwarz.comPhone +420 (388) 45 21 09Fax +420 (388) 45 21 13Phone +49 (22 03) 49-0Fax +49 (22 03) 49 51-229info.rsdc@rohde-schwarz.comservice.rsdc@rohde-schwarz.comPhone +49 (50 42) 9 98-0Fax +49 (50 42) 9 98-105info.bick@rohde-schwarz.comPhone +49 (30) 658 91-122Fax +49 (30) 655 50-221info.ftk@rohde-schwarz.comPhone +49 (30) 658 84-0Fax +49 (30) 658 84-183info.sit@rohde-schwarz.comPhone +49 (22 03) 49-5 23 25Fax +49 (22 03) 49-5 23 36info.rssys@rohde-schwarz.comPhone +49 (431) 600 51-0Fax +49 (431) 600 51-11sales@gedis-online.dePhone +49 (61 82) 800-0Fax +49 (61 82) 800-100info@hameg.deCMU-K20...-K26 Manuals 1115.6088.12 0.1 E-17 Contents of Manuals for Universal Radio Communication Tester CMU The user documentation for the R&S CMU 200/300 is divided in a Quick Start Guide, the operating manual for the basic instrument (including options R&S CMU-B41, R&S CMU-B17) and separate manu-als for individual software and hardware options. The complete documentation is available on CD-ROM, stock no. PD 0757.7746.2x. For an overview and order information about printed manuals refer to the beginning of the Quick Start Guide. The latest revisions of all manuals are also posted on the CMU Customer Web on GLORIS. Operating Manual CMU-K20/-K21/-K22/-K23/-K24/-K26 (Software Options: GSM400/GT800/900/1800/1900/850-MS for CMU-B21) The present operating manual describes the application of CMU for GSM mobile tests including the GPRS/EGPRS and AMR software extensions and options R&S Smart Alignment @ GSM-MS (R&S CMU-K47) and Dual Transfer Mode (R&S CMU-K44). It gives comprehensive information about the installation of the required software options and about manual and remote control of the instrument. Typical measurement tasks are explained in detail using the functions offered by the graphical user interface and a selection of program examples. The manual is organized as follows: Chapter 1 Describes the steps necessary for installing the software and putting the instru-ment into operation. Chapter 2 Gives an introduction to the application of the CMU for GSM mobile station tests and presents typical measurement examples. Chapter 3 Gives an overview of the user interface and describes the concepts of measure-ment control and instrument configuration. Chapter 4 Represents the reference chapter providing detailed information on all functions of the user interface and their application including the supplementary options R&S CMU-K42/-K43 (GPRS, EGPRS) and R&S CMU-K45 (AMR GSM). Chapter 5 Describes the basics of remote control of the instrument for GSM base station tests. Chapter 6 Lists all remote control commands for GSM mobile station tests including options R&S CMU-K42/-K43 (GPRS, EGPRS) and R&S CMU-K45 (AMR GSM). At the end of the chapter the commands are grouped together according to their func-tion (measurement groups or configurations) and sorted in alphabetical order. Chapter 7 Contains program examples. Chapter 8 Describes manual and remote control of option R&S CMU-K47, R&S Smart Alignment @ GSM-MS.Chapter 8 Describes manual and remote control of option R&S CMU-K44, Dual Transfer Mode.Chapter 10 Contains an index for the operating manual. Manuals CMU-K20...-K26 1115.6088.12 0.2 E-18 What's new in this Revision... This operating manual describes version V5.00 of the GSM-MS firmware package. Compared to previ-ous versions, this new firmware provides numerous extensions and improvements. The most important new features since V4.50 described in this manual are listed below. New Features Description Refer to... SMS message class The message class for a short message which is to be deli-vered to an MS under test can be set. RE-Load:NETWork:SMS:FILE (re-)loads the selected SMS message file. Chapter 4 GSM Mobile Tests (Signalling) Connection Control, Network. Progress of BER measurement New remote command FETCh[:SCALar]:RXQuality: BER:STATus:PROGress?, returns the progress time of the Bit Error Rate test. Chapter 4 GSM Mobile Tests (Signalling) Receiver Quality Measurements BCCH Change during a connec-tion BCCH channel change in the Synchronized and in theCall Established state, similar to an intercell handover. Chapter 4 GSM Mobile Tests (Signalling) Connection Control, BS Signal Extended Measurement Recports In the Receiver Quality Measurement Report menu, the R&S CMU can display two additional values, RX Level Sub and RX Quality Sub. Chapter 4 GSM Mobile Tests (Signalling) Receiver Quality Measurements Invalid Result Detection Timeout The Invalid Result Detection Timeout defines the period of time after which a measurement with invalid results is stop-ped and a new measurement can be started. This parameter is also provided for Spectrum measurements. Chapter 4 GSM Mobile Tests (Non Signalling) Spectrum Measurements CTM Text Telephony Support Signalling Info section of the setup table, the R&S CMU indi-cates whether the connected MS provides Cellular Text tele-phone Modem (CTM) support. Chapter 4 GSM Mobile Tests (Signalling) Connection Cont. with Call Established Main Service: Application Test Simpler connection scheme for application test without pre-vious packet data connection selection. Chapter 4 GSM Mobile Tests (Signalling) Connection Control without Signal Increased diagram scale The maximum Level Scale for P/t Multislot measurements has been increased to + 50 dB. This modification is valid for Non Signalling and for Signalling mode (manual control fea-ture only). Chapter 4 GSM Module Tests (Non Signalling) Power Measurements R&S Smart Alignment Extended settings for RX Calibration test signal. Chapter 4 GSM Module Tests (Non Signalling) Connection Control, Generator Abbreviations CMU-K20...-K26 1115.6088.12 0.4 E-17 Frequently Used Abbreviations AB Access Burst Abs. Absolute ACK Acknowledged mode AGC Automatic Gain Control AMR Adaptive Multi-Rate (codec) AOC Advice of Charge Atten. Attenuation Aux TX Additional RF generator (signal) BA BCCH Allocation Bandw. Bandwidth BCC Base Transceiver Station Color Code BCCH Broadcast Control Channel BCCH Broadcast Control Channel BEP Bit Error Probability BER Bit Error Rate BLER Block Error Ratio BS Base (Transceiver) Station BS Base (Transceiver) Station BS-AG-BLKS-RES Basic Services Access Grant Blocks Reserved BS-PA-MFRMS Basic Service Paging Blocks Available per Multiframes BTS Base Transceiver Station Chan. Channel CRC Cyclic Redundancy Check CV BEP Coefficient of Variation of the BEP DBLER Data Block Error Rate Disp. Display (Mode) Err. Error EVM Error Vector Magnitude Ext. Extended (phase error measurement) Ext. External FAC Final Assembly Code FACCH Fast Associated Control Channel FER Frame Erasure Rate Freq. Frequency GPRS General Packet Radio Service GSM Global System for Mobile Communication, Groupe Spcial Mobile HSN Hopping Sequence Number IF Intermediate Frequency IMEI International Mobile Equipment Identity IMSI International Mobile Subscriber Identity Lev. Level MAIO Mobile Allocation Index Offset Magn. Magnitude Max. Maximum (e.g. Level) Max./Min. Maximum/Minimum MCC Mobile Country Code MNC Mobile Network Code MOC Mobile Originated Call MS Mobile Station MSIN Mobile Subscriber Identity Number MTC Mobile Terminated Call NB Normal Burst Ovw. Overview PCL Power Control Level PDTCH Packet switched Data Traffic Channel PDU Protocol Data Unit PRBS Pseudo Random Bit Sequence PSR Pseudo Random PTP Point to Point (GPRS services) RACH Random Access Channel RBER Residual Bit Error Rate Rcv. Receiver Ref. Reference (marker) Rel. Relative RF Radio Frequency RMS Root Mean Square (averaging) SDCCH Stand-alone Dedicated Channel Seq. Sequence SID Silence Insertion Descriptor CMU-K20...-K26 Abbreviations 1115.6088.12 0.5 E-17 SMS Short Message Service SNR Serial Number SVN Software Version Number TAC Type Approval Code TBF Temporary Block Flow TDMA Time Division Multiple Access TLLI Temporary Link Level Identity Trg. Trigger TSC Training Sequence (Code) USF Update State Flag Vect. Vector 1115.6088.12 S.1 FW V5.03_E-1 Supplement to the Operating Manual for GSM-MS Software Options New Feature in Version V5.01 / 5.03 of Options R&S CMU-K20 / / -K26 (with Base System V5.0x) Dear CMU Customer, With the new software versions V5.01 and V5.03 of the GSM MS test options R&S CMU-K20 / / -K26, the Universal Radio Communication Tester R&S CMU 200 offers an extended measurement functional-ity that could not be reported yet in the current revision of the operating manual, 1115.6088.12-18-. The new features are described below. R&S Smart Alignment (Option R&S CMU-K47) The RX Calibration signal supports a new burst sequence (Burst Type): DB-FB-5DB Dummy burst in slot no. 0, frequency correction burst in slot 1, 5 dummy bursts in slots 2 to 6, DTX (for hopping) in slot 7. Remote control: SOURce:RFGenerator:RXCal:FREQuency:BTYPe DF5D Assisted GPS (Option R&S CMU-K90) The R&S CMU can send and receive binary data blocks containing Assisted GPS (A-GPS) information using the remote control commands listed below. To be sent to the mobile, a A-GPS data block must have the following properties: Maximum length 251 Bytes (see standard 3GPP 44.006, section 8.8.5). Larger amounts of data must be broken into several blocks. The block must contain a message that is coded in layer 3 format (see standard 3GPP TS 24.008). The block must contain an A-GPS command for the mobile and must be either in Supplementary Service (SS) or in Radio Resource LCS Protocol (RRLP) format. With firmware version V5.03, the A-GPS command may also be transferred in one of the following message types: APPLICATION INFORMATION Radio Resource (RR) message (3GPP TS 44.018) RESET MS POSITIONING STORED INFORMATION conformance testing message (3GPP TS 44.014) The block data format is described in chapter 5 of the R&S CMU200/300 operating manual. PROCedure:SIGNalling[:CSWitched]:AGPS:TRANsmit A-GPS Transmit Parameters Description of parameters Def. value Def. unit FW vers. A-GPS data block with a maximum length of 251 bytes V5.01 Description of command Sig. State This command sends an A-GPS data block to the MS under test. CEST PROCedure:SIGNalling[:CSWitched]:AGPS:RECeive? A-GPS Receive Return Description of parameters Def. value Def. unit FW vers. A-GPS data block with a maximum length of 251 bytes V5.01 Description of command Sig. State This command queries the last A-GPS data block from the MS under test. The data block can be read repeatedly, until the MS generates a new block. CEST CMU-K20...-K26 Contents of Chapter 1 1115.6088.12 I-1.1 E-9 Contents 1 Installation and First Steps ................................................................................. 1.1 Software Installation or Update ......................................................................................................1.1 Creating a new Software Configuration.........................................................................................1.4 Enabling Software Options .............................................................................................................1.6 CMU-K20...-K26 Software Installation or Update 1115.6088.12 1.1 E-9 1 Installation and First Steps This chapter describes how to install, update or enable software options GSM400/850/900/1800/1900-MS for the Universal Radio Communication Tester CMU200. Before proceeding to perform any of the steps described in this manual, please make sure that the in-strument is properly connected and put into operation according to the instructions given in chapter 1 of the CMU200 manual. The hardware and software options available are shown in the Startup menu. The status of the software options required for GSM mobile tests is indicated in the lines CMU-K20 GSM400-MS, CMU-K21 GSM900-MS, CMU-K22 GSM1800-MS, CMU-K23 GSM1900-MS, CMU-K24 GSM850-MS, CMU-K26 GSM GT800-MS, and the supplementary options such as CMU-K42 GPRS for GSM MS: If a version number is indicated, the CMU is ready to perform GSM mobile tests. In this case you may skip this chapter, except if you wish to update the current software version or activate another version. If disabled is indicated, the software option must be enabled using a key code; see section Creating a new Software Configuration on page 1.4. If not installed is indicated, the software must be installed via the PCMCIA interface or the floppy disk drive, see below. Software Installation or Update The CMU is always delivered with the latest software version available. New CMU software versions are available for download on the R&S Lotus Notes Service board. To be loaded via the PCMCIA interface, the software must be copied to one or several flash disks/memory cards or PCMCIA hard disks. An appropriate memory card CMU-Z1, order no. 1100.7490.02, can be obtained from Rohde & Schwarz. Note: If your CMU is equipped with a floppy disk drive (option CMU-U61), a set of installation floppy disks must be generated instead of a flash disk. All other steps do not depend on the storage medium. The software options GSM400/850/900/1800/1900-MS, GSM GT800-MS, and supplementary options such as GPRS for GSM MS (CMU-K42) are part of a single software package termed GSM MS, so they must be installed or updated together. They can be enabled and operated separately, see section Enabling Software Options on page 1.6. To install the GSM MS software proceed as follows: Switch off the CMU. Insert the flash disk into one of the two slots of the PCMCIA interface. Switch on the CMU. The installation is started automatically while the CMU performs its start-up procedure. To this end the VersionManager is called up (for a detailed description of the VersionManager refer to chapter 1 of the CMU operating manual or to the on-line help accessible via Info): Software Installation or Update CMU-K20...-K26 1115.6088.12 1.2 E-9 Softkey no. 5 on the left softkey bar, Install software..., is used to install new software from an external storage medium. The CMU automatically recognizes the storage medium and indicates the correspond-ing slot number: Slot 0 or 1 denotes the left or right slot of the PCMCIA interface. If a floppy disk is used the menu option reads Install software version from floppy. Press left softkey no. 5 (Install software) to start the installation. If your storage medium contains several installation versions, the software version selection dialog is opened: Use the rotary knob or the cursor keys to scroll the list and select the GSM MS version you intend to install. Press Install to start the installation. The installation is started. To be operable on your instrument, a network option must be combined with a compatible version of the CMU base software. Any base software version installed on the CMU hard disk can be combined with one or several network options to form an independent software configura-tion. If none of the configurations is compatible to the new GSM MS option, the VersionManager dis-plays an error message and takes you back to the software selection dialog; see section Creating a new Software Configuration on page 1.4. Otherwise, the following upgrade selection dialog is opened: CMU-K20...-K26 Software Installation or Update 1115.6088.12 1.3 E-9 The upgrade selection dialog displays a list of base software versions that can be combined with the new GSM MS software. Select the appropriate base version and press Upgrade.The new GSM MS option is added to the configuration or updates the previous GSM MS version of the configuration. To indicate that the storage medium must be changed the CMU issues the Change vol-ume message: Process next volumeExitChange volume Replace the current disk with the disk requested. Use the cursor up/down keys to select Process next volume (default setting). Press ENTER to confirm that the new disk has been inserted and to continue the installation. After processing the last disk the CMU displays the following screen: Creating a new Software Configuration CMU-K20...-K26 1115.6088.12 1.4 E-9 If you wish to install or upgrade other software versions, press left softkey no 4 or 5 (Install next software...) or insert new storage medium into the PCMCIA slot or floppy disk drive and press Change disks. To finish the installation, remove all disks from the drive and press Finish installation.The VersionManager is closed and the CMU is rebooted. The new firmware options are now operational and listed in the Menu Select menu together with their version number. Besides, the last software con-figuration installed is automatically taken as the active one in the next measurement session. Creating a new Software Configuration The CMU handles base software versions and network options on a separate basis. Different versions of the base software can be combined with different options to create new firmware configurations. For example, it is possible to update the base software without affecting the associated network options or vice versa. Moreover, the same base software version can be installed several times and combined with different network options (and vice versa), so it may enter into several firmware configurations. If no compatible base software version can be found on the hard disk, then the CMU will refuse to install a new GSM MS software option selected in the software selection dialog (see previous section). Instead, it displays the following error message: Press Back to installation to return to the software version selection dialog. Select a base software version that is compatible to your GSM MS software option and press Install.CMU-K20...-K26 Creating a new Software Configuration 1115.6088.12 1.5 E-9 Note: As a rule, firmware versions for the base system and for network options are compatible if they differ only in the last digit. GSM firmware versions 3.10 to 3.19 (if available) can be run together with base system version 3.10 to 3.19 (if available). With a new base software version, it is possible to either update an existing configuration or create a new one. A dialog selecting between the two alternatives is opened: Note: This dialog is skipped if the new base software version is not compatible with any of the existing configurations. An incompatible new base software must be in-stalled as a new base software. If you wish to add a new configuration to your hard disk, press Install as new base. To upgrade an existing configuration with the selected base software version in order to make it compatible to the new GSM MS software option, press Upgrade existing version. The existing ver-sion to be upgraded must be selected in an additional dialog. The installation is performed as described in section Software Installation or Update. After adding the new base software as a new configuration or updating the existing configuration, the CMU displays the following screen: Press left softkey no 4 or 5 (Install next software...) and proceed as described in section Software Installation or Update to install the new GSM MS version and assign it to the new configuration. Enabling Software Options CMU-K20...-K26 1115.6088.12 1.6 E-9 Enabling Software Options A new CMU software option purchased is ready to operate after it is enabled by means of a key code supplied with the option. This key code is to be entered into the Option Enable popup window which in turn can be opened via from the Setup Options menu. For details refer to Chapter 4 of the CMU200/300 operating manual. Note: The software options GSM400/GT800/850/900/1800/1900-MS and the supplementary op-tions described in this manual, e.g. GPRS and EGPRS for GSM MS (CMU-K42/-K43), are part of a single software package termed GSM MS, so they must be installed or updated together. However, they must be enabled and operated separately. Software installation and enabling of software options are completely independent from each other. CMU-K20...-K26 Contents of Chapter 2 1115.6088.12 I-2.1 E-14 Contents 2 Getting Started .................................................................................................... 2.1 Preparing a GSM Mobile Phone Test..............................................................................................2.2 Non Signalling Mode........................................................................................................................2.6 Signalling Mode..............................................................................................................................2.14 Call Setup and Signalling Parameters....................................................................................2.14 Receiver Reports and Power Measurements ........................................................................2.20 Receiver Quality Measurements ............................................................................................2.22 Condensed Measurement Examples............................................................................................2.24 Multislot Measurements with Mixed Modulation Schemes.....................................................2.24 Continuous Access Burst Measurement ................................................................................2.25 Frequency Hopping Trigger....................................................................................................2.26 Measurement Wizard......................................................................................................................2.27 CMU-K20...-K26 Preparing a GSM Mobile Phone Test 1115.6088.12 2.1 E-14 2 Getting Started The following chapter presents a sample GSM mobile test with the universal radio communication tester CMU. It is intended to provide a quick overview of the function groups GSM400/GT800/850/900/1800/1900-MS Non-Signalling and GSM400/GT800/850/900/1800/1900-MS Signalling and their functionality and to lead through some basic tests that are commonly performed on GSM mobile phones. Before starting any measurement with the R&S CMU, please note the instructions given in chapter 1 of the operating manual for the CMU basic unit for putting the instrument into operation. In chapters 2 to 4 of that manual you will also find information on customizing the instrument and the display according to your personal preferences. For installation instructions for the GSM-MS software options refer to chapter 1 of the present manual. The tests reported below include Connection of the phone and selection of the GSM function group, Power and modulation measurements in Non-Signalling mode, Selection and measurement of signalling parameters, BER tests. The steps to perform are explained on the left side of each double-page together with the results ob-tained on the CMU screen. On the right side, additional information is given. We also point out alterna-tive settings and related measurements which could not be reported in detail. The principles of manual operation are discussed in chapter 3. For a systematic explanation of all menus, functions and parameters including GSM background information refer to the reference part in chapter 4. Tip: The Measurement Wizard (see p. 2.27 ff.) provides predefined settings for typical test sce-narios. For many applications, selecting a predefined setting is the simplest and fastest way of configuring the instrument. Preparing a GSM Mobile Phone Test CMU-K20...-K26 1115.6088.12 2.2 E-14 Preparing a GSM Mobile Phone Test This chapter describes how to use the CMU for GSM mobile phone tests. As a prerequisite for starting the session, the instrument must be correctly set up and connected to the AC power supply as de-scribed in chapter 1 of the operating manual for the CMU basic unit. Furthermore, the GSM software must be properly installed following the instructions given in chapter 1 of the present manual. oIStep 1 Switch on the CMU using the mains switch at the rear. Check the operating mode of the instru-ment at the ON/STANDBY key on the front panel.

01 2 34 5 67 8 9. -ON/ OFF ENTER1100.0008.02VARIATION DATAFUNCTION SYSTEMCONTROLDATA CTRL MENUSELECT HELP SETUPmark symbE FB M/77VWCdB7Vk/mG/nAmVD 1dBdBmUNIT...EXP/CMP CONT/HALTRF4INUNIVERSAL RADIO COMMUNICATION TESTER CMU 200 .ESCAPE*abc def ghijkl mno pqrstu vwx yz_ 7AFIN AFOUTVOLDELAUTOINFO RESETPRINT* #

AUX1 AUX2SPEECHAUX3DATA213dBmMAX 2 W MAX 50W MAX 13 dBmMAXRF 3OUT RF2 RF 1DATA1INSCLR2DEF3GHI1ABC5 6 48VW7STU. - 09XYZS C RCL MStep 2 Connect the bi-directional RF connector RF 2 of the CMU to the antenna connec-tor of the mobile phone. Supply the mobile phone with the correct operating voltage (battery or power sup-ply).

Step 3 Switch on the CMU by means of the ON/STANDBY key on the front panel.

The startup menu is displayed while the CMU performs a power-up test. After a few seconds the CMU displays the last menu used in the previous session. Press the RESET key to open the Reset popup menu. Select Reset and press the ENTER key. In the popup window opened, select Yes to confirm the instrument reset. The CMU indicates that it performs a gen-eral reset of all device settings and is then ready to carry out the following steps. The Reset popup menu is closed automatically. CMU-K20...-K26 Preparing a GSM Mobile Phone Test 1115.6088.12 2.3 E-14 Additional Information... Alternative Settings and Measurements ... on Step 1 Mains switch on the rear panel When the mains switch at the rear is set to the OFF position, the complete instrument is disconnected from the power sup-ply. When it is set to the ON position, the instrument is in standby mode or in operation, depending on the position of the ON/STANDBY key on the front panel.

chapter 1 of CMU manual ON/STANDBY key on the front panel The ON/STANDBY key at the front of the instrument deter-mines whether the instrument is in standby mode or in opera-tion. Standby mode: Only the reference frequency oscillator is supplied with oper-ating voltage, and the orange LED (STANDBY) is illuminated. Operation: The green LED (ON) is illuminated and all modules of the in-strument are supplied with operating voltage. ... on Step 2 RF connection of the mobile phone A high-quality cable should be used for this connection, ide-ally with an attenuation of less than 0.5 dB. For portable phones, the car installation set supplied by telephone manu-facturers can be used. Power supply for the mobile phone In case the mobile phone is operated from an external power supply, make sure that it is capable of supplying the maxi-mum peak current required. As GSM mobile phones generate pulse-like RF signals, they often feature a pulse-shaped cur-rent consumption. Problems may arise if power supplies are used which cannot provide such currents with a constant volt-age. ... on Step 3 The CMU provides two bi-directional RF connectors RF1 and RF2 differing by their permis-sible input and output levels. RF1 is the recommended standard connector for GSM mobile phones, RF2 for handheld phones (see data sheet). The unidirectional connectors RF4 IN and RF3 OUT are in-tended for connection of modules requiring high input levels or modules with low RF output lev-els. RF4 IN and RF3 OUT can also be used to connect GSM mobiles off the air via antennas. Input and output connectors can be selected in the RF tab of the Connect. Control menu. Startup menu The startup menu displays the following information: The startup procedure (Process) Instrument model, serial number and version of the CMU base software (Info) Installed hardware and software options and equipment (Options). Available software options are listed with their version numbers. Progress of the startup procedure (Startup bar graph).

chapter 4 of CMU manual That chapter also contains infor-mation on customizing the CMU. Preparing a GSM Mobile Phone Test CMU-K20...-K26 1115.6088.12 2.4 E-14 MENUSELECT Step 4 Press the Menu Select key to open the Menu Select menu.

The Menu Select menu indicates the func-tion groups available. If a function group is selected the corresponding modes and measurement menus are indicated. Select the GSM900-MS function group. Select the Non-Signalling mode Select the Analyzer/Generator menu. Press the Enter key to activate the measurement selected and open the Analyzer/Generator menu. CMU-K20...-K26 Preparing a GSM Mobile Phone Test 1115.6088.12 2.5 E-14 Additional Information... Alternative Settings and Measurements ... on Step 4 Menu Select menu The Menu Select menu shows all function groups installed on your CMU. All function groups GSMxxx-MS are subdivided in the two measurement modes Non-Signalling and Signalling,each containing a number of measurement menus. chapter 3 chapter 4 Frequently used measurement menus can be stored together with their function group and mode and assigned to one of the eight hotkeys. When needed for the next time, they can be called up by a single keystroke. See also chapter 4 of the CMU manual. Non-Signalling Mode CMU-K20...-K26 1115.6088.12 2.6 E-14 Non-Signalling Mode In the Non-Signalling mode, a GSM-specific RF signal can be generated and a RF signal with GSM characteristics can be analyzed. Compared to the Signalling mode test times may be reduced consid-erably. Moreover, the measurements are not restricted to the specified channel and MS output power ranges of the network. The most common application is module test and test of mobiles in a special test mode.In our example we use the GSM signal generated by the CMU itself to demonstrate the main features of the Non-Signalling mode. This is analogous to the RF measurement example in the CMU operating manual. Step 1 The Analyzer/Generator menu contains softkeys and hotkeys to configure the RF generator signal of the CMU and to define the RF analyzer settings.Moreover, the current measurement results for power, frequency and phase errors of the received signal are displayed. At present, all parameters are set to default values. They can be directly changed by means of the softkeys and hotkeys. User-defined parameters will be saved to the non-volatile RAM for later sessions when the CMU is switched off. Proceed as outlined in section RF Non-Signalling Measurements, chapter 2 of CMU200 operating manual to connect RF1 to RF2 via a coax cable. Open the Connection Control menu and perform the appropriate RF input and output set-tings. Adapt the Analyzer Settings Frequency setting to the expected input signal fre-quency (default generator frequency). Press Generator RF Level and the ON/OFF key to switch on the generator. The analyzer adapts itself to the RF input level (autoranging).

The measurement results are indicated in the P/t Norm. GMSK and Ext. Phase Error GMSK output fields. Select (press) the Power/t Norm. GMSK softkey. CMU-K20...-K26 Non-Signalling Mode 1115.6088.12 2.7 E-14 Additional Information... Alternative Settings and Measurements ... on Step 1 Analyzer/Generator menu The Analyzer/Generator menu contains three with associated hotkeys used to Define the RF input signal path and the trigger settings (Analyzer Level) Set the CMU RF analyzer (Analyzer Settings) and deter-mine the RF input signal that can be measured Control the RF generator (Generator) and define the pa-rameters of the RF output signal generated.

chapter 4, p. 4.2 ff. The Analyzer/Generator settings are also provided in the Analyzer and Generator tabs of the Con-nection Control menu. See also notes on Softkeys and hotkeys on p. 2.11.The assignment between carrier frequency and channel number is according to GSM specifications. As the CMU simulates a base station, the generator signal corresponds to the downlink (signal direction from the base station towards the mobile station), the signal analyzed corresponds to the uplink (signal direction from the mobile station towards the base station). The channel/frequency assignment changes accordingly. The RF frequency can be set in multiples of 200 kHz. With an additional Frequency Offset, an RF signal with an arbitrary frequency that is in the range supported by the tester can be generated and analyzed. In general, the RF generator level is set to be different for the used timeslot and unused timeslots. The level of the unused timeslots is defined relative to the level in the used timeslot. Selecting a definite training se-quence (TSC) or bit modulation or transmission mode in the Genera-tor Modulation panel implies that signals with these characteristics are generated. Selecting a definite TSC in the Analyzer Settings panel implies that only signals with this TSC are analyzed. Measurement and Generator State The state of the Power/t Norm. GMSK measurement is indi-cated in the corresponding softkey (measurement control softkey) and above the output fields for the results. The state of the RF generator is indicated in the Generator RF Level softkey. For ongoing measurements, the results in the output fields are constantly updated. All measured quantities refer to the current burst. The default tolerance template for the power ramp is defined according to GSM specifications. For various reasons, an output field may fail to show a valid measurement result (indication "---"): The analyzer settings do not match the properties of the input signal. The input signal is missing. The measurement is switched off (OFF is indicated in the softkey controlling the measurement). The current options for the meas-urement status are ON (default) and OFF. A third state, HLT, oc-curs after a single-shot measure-ment is terminated (see below). Once selected, the Power or Modulation measurement can be switched off and on again by means of the toggle key ON/OFF.Generators may also be switched on (state ON) and off (state OFF) by means of the ON/OFF key. Max. Level The autoranging mechanism adjusts the RF input path to the applied signal. Alternatively, the expected signal level (for GMSK-modulated GSM signals, the average RF input level plus an appropriate margin of a few dB) can be set via Ana-lyzer Level RF Max. Level.

Chapter 4, p. 4.82 ff. The permissible range Max. Level depends on the RF connector and the external attenuation used. Non-Signalling Mode CMU-K20...-K26 1115.6088.12 2.8 E-14 Step 2 Press the selected Power/t Norm. GMSK softkey again to call up the Power Con-figuration menu.

In the Control tab, the Power Configuration menu defines the scope of the Power measurement. The settings offered in this menu are discussed in section General Settings in chapter 3. We pick just one example, limiting the number of bursts measured. Press the ON/OFF key or the rotary knob to expand the table. Select Single Shot in the Repetition line. Press the ESCAPE key or the Power softkey again to close the Power Con-figuration menu and return to the main menu. The Power measurement is stopped after one statistic count. The status indication next to the Power softkey is set to HLT.Step 3 Press the Power hotkey to switch over to the graphical menu Power.

The Power menu shows the power of the current burst as a function of time. Together with the burst power, a tolerance template as specified in the GSM standard (here: for GMSK-modulated normal bursts) is displayed. Settings (at present, the de-fault settings) and scalar results are dis-played in two parameter lines above the diagram and in a message box positioned in the center of the diagram. Various tools allowing to take a closer look at the measurement results are provided in the graphical measurement menu. CMU-K20...-K26 Non-Signalling Mode 1115.6088.12 2.9 E-14 Additional Information... Alternative Settings and Measurements ... on Step 2 Power Configuration menu The Power Configuration menu contains three tabs defining Measurement control and statistical settings (Control), The tolerance template for the burst (Limit Lines), PCL-dependent limits for the average burst power (Lim-its)

chapter 3. Settings made in the Power Con-figuration menu apply to power measurements only. Settings made in the Connect. Control menus apply to the entire function group and mode GSM900-MS Non-Signalling. Repetition mode and Stop Condition If no stop condition is imposed (Stop Condition = None), the Repetition mode determines whether the measurement is Continued until explicitly stopped by the operator (Con-tinuous), Stopped after one statistic count (Single Shot). By default, a statistic count comprises 100 bursts. With Stop Condition = On Limit Failure, the measurement is stopped af-ter the first burst which is out of tolerance.

chapter 3. The Statistic Count is defined in the Control tab of the Power Con-figuration menu. The stop condition On Limit Fail-ure should be selected if the limit check represents the main pur-pose of the measurement. The limits can be modified in the Limit Lines tab of the Power Con-figuration menu. Measurement in the HLT state The average and peak power of the last burst measured is indicated in the output fields Average and Peak.In contrast, the modulation measurement is still running. The results for the frequency and phase errors are periodically updated.

CMU manual See the sections on measure-ment control in chapter 3 and 5. ... on Step 3 Power menu The diagram in the Power menu, application Power/t Norm. GMSK shows a normal burst with a length of 148 bits (plus a guard period of 8.25 bits). The time scale of the diagram ranges from 10 bits to 156 bits covering the useful part, the rising and falling edges of the burst. The ordinate ranges from 80 dB to +10 dB, the 0-dB reference level is equal to the carrier power. Note that settings made previously (Power Configuration menu) are preserved in the whole measurement group. Ac-cordingly, the status of the measurement is still HLT. The dia-gram is fixed showing the last burst measured.

chapter 4, p. 4.9 ff. The GSM power template is de-fined relative to the carrier power. For low signal powers, a looser absolute limit is to be applied at the beginning and the end of the power ramp (areas 1, 2, 7, and 8). This yields the distorted template that we observe in the present example. Non-Signalling Mode CMU-K20...-K26 1115.6088.12 2.10 E-14

Step 4 Press the Marker/Display softkey twice to change the hotkeys displayed below the diagram. Press the Display Area hotkey to open a window offering a list of different zoom areas. If you select Left Upper Corner the CMU zooms in on the left upper corner of the burst. Press the Display/Marker softkey twice and the Ref R hotkey. Enter an abscissa value (in bits) to position a reference marker onto the trace.The coordinates (time and burst power) of the reference marker are displayed in the second parameter line. For the next step we'll take advantage of the fact that the configuration menu is ac-cessible from the graphical menu as well.

Step 5 Press the Power/t Norm. GMSK softkey twice to reopen the Power Configuration menu. Press ENTER or the rotary knob to ex-pand the table. Select Continuous from the Repetition field to restart the measurement and confirm with ENTER or by pressing the rotary knob. From the Display Mode field, select Maximum. Press ESCAPE or the P/t Norm. GMSK softkey again to close the configuration menu. Instead of the current burst power, the diagram shows the maximum burst power measured at each time. As no stop condi-tion is set, the measurement will be running until it is explicitly terminated. CMU-K20...-K26 Non-Signalling Mode 1115.6088.12 2.11 E-14 Additional Information... Alternative Settings and Measurements ... on Step 4 Softkeys and hotkeys To enlarge the diagram area of the graphical measurement menus the left softkey column is suppressed. The functional-ity of each softkey on the right side is extended by hotkeys assigned to the softkeys. These hotkeys are displayed across the hotkey bar below the diagram when the softkey is se-lected. Some of the softkey/hotkey combinations offer settings that can be also accessed via configuration menus. For example, the Analyzer Level settings are equivalent to the settings in the Input Level and Trigger section in the Analyzer tab of the Connection Control menu. Identical settings overwrite each other; the last value entered is valid for the whole function group and test mode.

chapter 4, p. 4.9 ff. The Analyzer Level softkey con-figures the input level and exter-nal attenuation as well as the trigger settings. The Analyzer Settings softkey determines which kind of RF sig-nal can be analyzed. The Generator Settings softkey determines the RF signal gener-ated. Markers Markers are a graphical tool used to locate points on a trace and read out their coordinates. A reference marker and two delta markers may be defined in the Power menu. The reference marker measures the absolute level of the trace, the delta markers and measure the absolute level or (if set to relative) the distance between their position and the reference marker. The Marker/Display softkey sets markers and D-lines and deter-mines the display area.

chapter 4, p. 4.9 ff. In addition to markers, a D-line can be used to measure a par-ticular level in the diagram. ... on Step 5 Display mode If the measurement extends over several bursts the CMU calculates four different traces one of which can be selected in the Display Mode field. The purpose of the four traces is to give an overview of the range and arithmetic mean of the lev-els detected at any point on the time axis. The following traces can be displayed: Current Current burst level Maximum Maximum of all burst levels measured Minimum Minimum of all burst levels measured Average Weighted average of all burst levels measured, see averaging prescription in chapter 3. The Statistic Count input field defines how many evaluation periods form a statistics cycle. For GSMxxx-MS Non-Signalling measurements an evaluation period is equal to the propagation time of a normal burst (this definition holds even if a continuous carrier signal is transmitted). In our example the statistics cycle comprises 100 bursts (default value).

chapter 3. To refine the statistical evaluation, a suitable combination of the sta-tistic count, repetition mode, stop condition and display mode can be selected.

chapter 4, p. 4.29 ff. In addition to the Power/t Norm. GMSK measurement, several test applications assessing the behav-ior of the average burst power over several timeslots (P/Slot Graph, P/Slot Table) or frames (P/Frame) can be selected (soft-key Application).Non-Signalling Mode CMU-K20...-K26 1115.6088.12 2.12 E-14 Step 6 ESCAPE Press the ESCAPE key to close the Power Configuration menu and return to the main menu. The trace is now continuously measured and updated in the display. With the display mode Maximum, which is indicated in the upper right corner of the diagram, trace values will be replaced only if a current measured value at a particular test point exceeds all values measured before at the same test point.

Step 7 Press the Menus softkey to display the measurement groups available in the hotkey bar. Press the Modulation hotkey to open the Modulation menu.

The Modulation menu displays the results of the phase and frequency error meas-urement.The trace represents the phase error of the current burst as a function of time.Below, a table displays the extreme value of the phase error and the RMS phase error, the origin offset, the I/Q imbalance, and the frequency error. The detected training sequence (TSC), average power of the current burst and the statistic count are shown in addition. CMU-K20...-K26 Non-Signalling Mode 1115.6088.12 2.13 E-14 Additional Information... Alternative Settings and Measurements ... on Step 7 Phase and frequency errors GSM equipment can use different modulation schemes; the basic scheme is GMSK modulation, which is a constant-envelope, binary, differential phase-shift keying scheme. It is impor