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

UHF Solid StateLow Power Television Transmitters/Amplifiers

MD Series/KD Series

Passionfor FM & TV

Broadcasting

Passionfor FM & TV

Broadcasting

Passionfor FM & TV

Broadcasting

Operating voltage:Up to 500 Wps 115/230/240 Vac ±10%, 47 to 62 Hz single phaseOver 500 Wps 115/230/240 Vac ±10%, 47 to 62 Hz single phase or

208/220/380 Vac ±10%, 47 to 62 Hz three phases

Cooling forced air with axial fansOperating temperature -5° ÷ +45° CHumidity 95% max

Transmitter Weight (including cabinet) Amplifiers WeightMD 50, MD 50/01 48 kg KD 50 13 kgMD 100, MD 100/01 48 kg KD 100 13 kgMD 200, MD 200/01 48 kg KD 200 13 kgMD 400, MD 400/01 52 kg KD 400 20 kgMD 500, MD 500/01 80 kg KD 500 25 kgMD 700, MD 700/01 80 kg KD 700 25 kgMD 1100, MD 1100/01 95 kg KD 1100 35 kgMD 1500, MD 1500/01 95 kg KD 1500 35 kg

TransmitterMD 50, MD 50/01 Standard 19” 9U – 540x470x820 mmMD 100, MD 100/01 Standard 19” 9U – 540x470x820 mmMD 200, MD 200/01 Standard 19” 9U – 540x470x820 mmMD 400, MD 400/01 Standard 19” 9U – 540x470x820 mmMD 500, MD 500/01 Standard 19” 14U – 625x710x850 mmMD 700, MD 700/01 Standard 19” 14U – 625x710x850 mmMD 1100, MD 1100/01 Standard 19” 14U – 625x710x850 mmMD 1500, MD 1500/01 Standard 19” 14U – 625x710x850 mm

AmplifierKD 50, KD 50/01 483x88x415 mmKD 100, KD 100/01 483x133x540 mmKD 200, KD 200/01 483x133x540 mmKD 400, KD 400/01 483x133x540 mmKD 500, KD 500/01 483x222x690 mmKD 700, KD 700/01 483x222x690 mmKD 1100, KD 1100/01 483x222x700 mmKD 1500, KD 1500/01 483x222x700 mm

Features and specifications subject to change without notice.

POWER SUPPLY

GENERAL OPERATINGCONDITIONS

WEIGHTS

SIZES (WxHxD)

DIGITAL READY

DUAL CAST READY

TECHNICAL CHARACTERISTICSUHF Solid State Low Power Television Transmitters/AmplifiersMD Series/KD Series

• New LDMOS technology. Using the latest LDMOS technology and new PA module design, the MD Series tran-

smitters and KD Series amplifiers are extremely rugged and exhibit excellent thermal characteristics. Linea-

rity and IMD performances are better than older bi-polar technology. This means an excellent transmission

quality with analogue or digital operation.

• Digital ready. The MD Series transmitters and KD Series amplifiers are designed to grant extremely high per-

formances also for digital television modulation (DVB-T/H, ATSC, ISDB-Tb,etc…). Each MD’s Series transmitter

is also easily upgradeable for digital transmission. Optional kits are available for field digital upgrading. This re-

duces the cost of later upgrade to digital while providing the best quality of analogue service currently available.

• Frequency-agile. MD Series transmitters and KD Series amplifiers are fully broadband. All RF stages ahead

of the output filters can operate on any UHF channel.

• Dual driver. High on-air reliability is assured by using optional dual driver configuration.

• Low maintenance. The overall operating costs are reduced and the maintenance is optimised for two year in-

tervals thanks to the absence of wear-out mechanism in solid state devices.

• Power supply. A rugged and oversized high-efficiency (> 93%) power supply allows to increase reliability, de-

creases heating and reduces AC power consumption as well. Power supplies are protected from incoming AC

line overvoltage, overcurrent, transient and lightning.

• Advanced LCD monitoring system provide full front panel transmitter control capabilities and extensive metering.

Standard or special remote control interfaces are

also available.

• Cooling. An oversized standard air cooling sy-

stem with internal fans extends transistors life.

• Meets or exceeds all international standards

for safety and electrical requirements.

Frequency Range 470-860 MHzBandwidth BroadbandOutput power:Transmitter Amplifier Analog Power Digital PowerMD 50, MD 50/01 KD 50, KD 50/01 50 Wps 16 WrmsMD 100, MD 100/01 KD 100, KD 100/01 100 Wps 30 WrmsMD 200, MD 200/01 KD 200, KD 200/01 200 Wps 60 WrmsMD 400, MD 400/01 KD 400, KD 400/01 400 Wps 130 WrmsMD 500, MD 500/01 KD 500, KD 500/01 500 Wps 150 WrmsMD 700, MD 700/01 KD 700, KD 700/01 700 Wps 250 WrmsMD 1100, MD 1100/01 KD 1100, KD 1100/01 1100 Wps 350 WrmsMD 1500, MD 1500/01 KD 1500, KD 1500/01 1500 Wps 500 Wrms

Input power (KD series only):With option /01 max 5 Wps (1.7 Wrms)

Power Consumption (at maximum power with black video signal):Transmitter ConsumptionMD 50, MD 50/01 190 VAMD 100, MD 100/01 300 VAMD 200, MD 200/01 500 VAMD 400, MD 400/01 950 VAMD 500, MD 500/01 1200 VAMD 700, MD 700/01 1600 VAMD 1100, MD 1100/01 2400 VAMD 1500, MD 1500/01 3300 VA

Amplifier ConsumptionKD 50, KD 50/01 105 VAKD 100, KD 100/01 215 VAKD 200, KD 200/01 415 VAKD 400, KD 400/01 860 VAKD 500, KD 500/01 1110 VAKD 700, KD 700/01 1500 VAKD 1100, KD 1100/01 2300 VAKD 1500, KD 1500/01 3200 VA

In/out impedance 50 ΩInput connector (KD series only) N type (others on request)Output connector:Up to 280 Wps N type (others on request)Over 280 Wps DIN 7/16" (others on request)

Spurious and harmonic emissions (ref. to carrier) ≤ - 60 dBcPower stability < 1%Intermodulation (IMD-DIN 45004 -8, -16, -10 dB) < -60 dBc (typ. - 62 dBc)

Input connector BNC unbalancedInput impedance 75 ΩInput signal level 1 Vp.p.Input return loss >30 dBDifferential gain ≤ 3 %Differential phase ≤ ± 3°Amplitude frequency response (in the vision band) ≤ ± 0.5 dBGroup delay frequency response (in the vision band) ≤ ± 50 nSS/N ratio > 63 dB2T K factor ≤ 1 %Luminance non linearity ≤ 1 %

Input connector XLR balancedInput impedance 600 ΩTHD (50 KHz peak deviation at 1 KHz) ≤ 0.4 %S/N (50 KHz peak deviation at 1 KHz) >60 dBDeviation from preemphasis curve (20 Hz to 15 KHz) ± 0.5 dB

Forward and reflected power, DC voltages and currents for each module, heatsink temperature

VSWR, over temperature, video signal missing, cooling system failure, overdriving

ELECTRICALCHARACTERISTICS

VIDEO CHARACTERISTICS (MDSERIES)

AUDIO CHARACTERISTICS (MDSERIES)

METERING

ALARMS