Telecast Technology Co., Ltd.
Main products:Encoder, Multiplexer, Scrambler, Modulator, Digital TV Transmitter
Contact Us
  • Contact Person : Ms. Ruby
  • Company Name : Telecast Technology Co., Ltd.
  • Tel : 0086-28-85370296
  • Fax : 0086-28-85370297
  • Address : Sichuan,Chengdu,No11,Wuke East 2 Road,WuhouKejiyuan
  • Country/Region : China
  • Zip : 610000

COFDM Modulator

COFDM Modulator
Product Detailed
COFDM Modulator: Fully complying with DVB-T standard Four ASI inputs supporting hot backup SFN and MFN supporting


Telecast MDDT01A COFDM Modulator is a high performance modulator developed according to Cofdm (DVB-T) standard. It adopts advanced framing structure, channel coding and modulation technology. And it also supports both MFN (Multi-frequency network) and SFN (single frequency network). It has 4 AIS input ports, one GPS.10MHZ input port and one 1 PPS input port. In order to improve the output performance of the transmitter, the DVB-T modulator can simultaneously support linear and nonlinear pre-correction. This device supports local and remote control through NMS software. 


Fully complying with Cofdm standard (EN300744) SFN and MFN supporting Transfer mode 2k, 4k, 8k optional Hierarchy modulation Alpha1, 2 and 4 optional  Transfer bandwidth 6M, 7M and 8M optional Supporting linear and non-linear correction Excellent phase noise and MER performance, MER ≥42db RF output range 36~960MHz, 1hz step Four ASI inputs supporting hot backup Constant temperature crystal oscillator, frequency stability is high up to 0.1ppm Full-size front panel LCD display and keyboard, NMS management.


Input4 channels ASI input, hot backup, BNC port
GPS 10Mhz reference clock input, BNC port
GPS 1PPS input, BNC port
ModulationstandardEN304 744
Guard interval1/4,1/8,1/16,1/32
Hierarchy modulationAlpha=1,2,4
RF outputASI loop out2channels ASI loop out, BNC port
interfaceN type, 50Ω impedance
RF range36~960MHz,1hz step
ATT-16dbm~+3dbm,0.1db step
MER≥ 42db
Linear   pre-correctionCorrection points16
Non-linear pre-correctionCorrection points512
SystemFull-size front panel LCD display and keyboard, NMS management
Software upgrading
GeneralDemission (W*L*H)482mm×455mm×44.5mm
Power supplyAC 110V±10%,50/60Hz or AC 220V±10%,50/60Hz

COFDM Modulator

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