DB Elettronica Telecomunicazioni SpA - Riviera Maestri del Lavoro 20/1 - 35127 Padova - Italyph +39 049 8700588 fax +39 049 8700747 - www.dbbroadcast.com - sales@dbbroadcast.com

TECHNICAL CHARACTERISTICS

Digital / Dual Mode Television Transmitters

DBT Series

Passionfor FM & TV

Broadcasting

Passionfor FM & TV

Broadcasting

Passionfor FM & TV

Broadcasting

POWER SUPPLY

OPERATING CONDITIONS

DBT SERIESWEIGHTS & SIZESAIR COOLED

LIQUID COOLED (ONLYMORE THAN 1800Wrms)

Up to 200 Wrms 115/208/230/240 Vac ± 10%, 47 to 62 Hz single-phaseOver 200 Wrms 115/208/230/240 Vac ± 10%, 47 to 62 Hz single-phase

or 208/220/380/415 ± 10%, 47 to 62 Hz three-phases

Cooling Forced air with axial fans (liquid cooling on request) Operating temperature -5° ÷ +45° C Humidity 95% max

Transmitter Weight – Air cooled* Size WxHxD - Air cooled*DBTV 2 / DBTU 2 30 kg Standard 19” 6U –540x324x620 mmDBTV 3 / DBTU 3 30 kg Standard 19” 6U –540x324x620 mmDBVT 6 / DBTU 6 30 kg Standard 19” 6U –540x324x620 mmDBTV 15 / DBTU 15 63 kg Standard 19” 9U – 540x470x820 mmDBTV 30 / DBTU 30 63 kg Standard 19” 9U – 540x470x820 mmDBTV 60 / DBTU 60 63 kg Standard 19” 9U – 540x470x820 mmDBTV 130 / DBTU 130 63 kg Standard 19” 9U – 540x470x820 mmDBTV 150 / DBTU 150 80 kg Standard 19” 14U – 625x710x850 mmDBTV 250 / DBTU 250 80 kg Standard 19” 14U – 625x710x850 mmDBTV 350 / DBTU 350 95 kg Standard 19” 14U – 625x710x850 mmDBTV 500 / DBTU 500 95 kg Standard 19” 14U – 625x710x850 mmDBTV 700 / DBTU 700 140 kg Standard 19” 24U – 625x1160x850 mmDBTV 1000 / DBTU 1000 140 kg Standard 19” 24U – 625x1160x850 mmDBTV 1300 / DBTU 1300 250 kg Standard 19” 31U – 625x1440x950 mm DBTV 1800 / DBTU 1800 250 kg Standard 19” 31U – 625x1440x950 mmDBTV 3200 / DBTU 3200 450 kg 1xStandard 19” 41U – 625x2000x1200 mmDBTV 6500 / DBTU 6500 900 kg 2xStandard 19” 41U – 625x2000x1200 mmDBTV 10000 / DBTU 10000 1350 kg 3xStandard 19” 41U – 625x2000x1200 mmDBTV 13000 / DBTU 13000 1800 kg 4xStandard 19” 41U – 625x2000x1200 mm

Transmitter Weight – Liquid cooled** Size WxHxD-Liquid cooled**DBTV 1800 / DBTU 1800 360 kg Standard 19” 31U – 625x1440x950 mmDBTV 3200 / DBTU 3200 570 kg 1xStandard 19” 41U – 625x2000x1200 mmDBTV 6500 / DBTU 6500 1050 kg 2xStandard 19” 41U – 625x2000x1200 mmDBTV 10000 / DBTU 10000 1710 kg 3xStandard 19” 41U – 625x2000x1200 mmDBTV 13000 / DBTU 13000 2100 kg 4xStandard 19” 41U – 625x2000x1200 mm

* Including cabinet ** Including cabinet but without Heat Exchanger

TECHNICAL CHARACTERISTICS

Digital / Dual Mode Television TransmittersDBT Series

•Generals. The new DBT Series of Digital Television Transmitters is fully compatible with all the international

digital standards (DVB-T/H, DVB-T2, ATSC, ISDB, ISDB-Tb, etc...) and suitable for SFN (Single Frequency

Network) and MFN (Multi Frequency Network) applications in VHF or UHF bands. The Transmitters are fully

broadband.

• Digital Modulator. The DBT Series is equipped with a “high-performances” digital modulator fully and easily

configurable to meet all the requirements of the DTV standards. The spectrum bandwidth may be user

configured to 8 or 7 or 6 MHz as required. Hierarchical modulation (optional) allows simultaneous transmission

of two MPEG- 2 (or MPEG-4) transport streams.

• Fully frequency agile with ultra low phase noise design. The DBT Series transmitters have an intuitive and

easy to use interface to select the frequency without any readjustment needing.

• Digital precorrector. A powerful digital linear / non linear (optionally auto-adaptative) precorrector, combined

with a very selective output band-pass filter, allows to obtain a perfectly clean spectrum in the adjacent channels

and excellent modulation performances.

• Phase noise. Very low phase noise oscillators allow to optimize the BER and MER performances.

• Analog compatibility. The DBT Series Transmitters are also available in analog version easily upgradable to

digital into the same rack or it is possible to have a “DUAL-MODE” configuration locally and/or remotely

selectable in analog/digital operation for maximum flexibility.

• New HI-ADC technology. DBT Series is realized with the new HI-ADC technology, developed by DB Elettronica.

Using the latest generation of RF devices with ultra-linear characteristics, we obtained higher performances

for both analog and digital television:

- higher video quality

- higher RMS output power (+26%) in digital operations respect to previous technologies

- “colder” functioning of the equipment increasing the efficiency up to 30% or more.

• Measures and alarm indications on front panel. All the main parameters of the transmitter and the alarm

indications are available on the front panel of the control logic unit and on the display of each amplifier (forward

and reflected power, voltages and currents of each single pallet, internal temperature, alarm indication for

VSWR, overtemperature, overdrive).

• Control logic unit and remote control. A powerful control logic unit allows a complete control of the

transmitter through front panel LCD display and, with remote option, a complete remote control through WEB

(including Web Server), SNMP and/or SMS.

• Surge and Lightening Protections (optional). Surge and lightening protections for the transmitters are

available as option to improve the lifetime of the equipment. Moreover an isolation transformer can be installed

to increase the protection of the unit from overvoltage or spikes coming from the mains distribution.

• Channel filtering. Critical mask and non-critical mask channel filters available.

• Liquid or Air cooling. DBT Series can be equipped with air or liquid cooling system. The liquid cooling system using tap water and

glycol is realized with an oversized heat exchanger suitable for outdoor or indoor installation and equipped with single or double

(optional) pump system for maximum redundancy, is the main component of the powerful liquid cooling system. A special design of

liquid cooled heatsinks inside the amplifier and a low pressure liquid distribution system are some of the main characteristics of the

DB liquid cooling systems.

This assures very high reliability of the cooling system, easy installation and very high cooling efficiency for perfect operation also in

very hard climatic conditions. Substantial advantages of our liquid cooling system respect to air cooling are:

- Perfect work in hard ambient conditions

- Guaranteed operation also in very dusty locations, also with high humidity or salinity

- Acoustic noise almost absent

- Reduced heat radiation into the environment

- Longer life for transistors and active elements due to colder operation

FREQUENCY RANGE

OUTPUT POWERDBTU SERIES

OUTPUT CONNECTOR

DIGITALFEATURES

DBTV Series 174 – 230 MHzDBTU Series 470 – 860 MHz

ANALOG POWER DIGITAL POWER*DBTV 2 / DBTU 2 5 Wps 2 WrmsDBTV 3 / DBTU 3 10 Wps 3 WrmsDBVT 6 / DBTU 6 20 Wps 6 WrmsDBTV 15 / DBTU 15 50 Wps 15 WrmsDBTV 30 / DBTU 30 100 Wps 30 WrmsDBTV 60 / DBTU 60 200 Wps 60 WrmsDBTV 130 / DBTU 130 400 Wps 130 WrmsDBTV 150 / DBTU 150 500 Wps 150 WrmsDBTV 250 / DBTU 250 700 Wps 250 WrmsDBTV 350 / DBTU 350 1000 Wps 350 WrmsDBTV 500 / DBTU 500 1500 Wps 500 WrmsDBTV 700 / DBTU 700 2200 Wps 700 WrmsDBTV 1000 / DBTU 1000 3000 Wps 1000 WrmsDBTV 1300 / DBTU 1300 4000 Wps 1300 WrmsDBTV 1800 / DBTU 1800 5500 Wps 1800 WrmsDBTV 3200 / DBTU 3200 10 kWps 3200 WrmsDBTV 6500 / DBTU 6500 20 kWps 6500 WrmsDBTV 10000 / DBTU 10000 30 kWps 10 kWrmsDBTV 13000 / DBTU 13000 40 kWps 13 kWrms

Up to 130 Wrms N type130 Wrms to 500 Wrms DIN 7/16” (others on request)500 Wrms to 700 Wrms EIA 7/8” (others on request)700 Wrms to 1800 Wrms EIA 1+5/8” (others on request)1800 Wrms to 10 kWrms EIA 3+1/8” (others on request)Over 10 kWrms EIA 6+1/8” (others on request

Shoulder attenuation > 38 dB M.E.R. > 37 dB (typ. 38 dB)Output frequency response ± 0.5 dB

* in COFDM mode