UT-100 USB DVB-T Modulator/Demodulator


UT-100 - Features

l   USB based modulator/demodulator with support for EN 300-744 DVB-T transmission and reception.

l   Powered from the USB bus, so no external power adapter is required.

l   Full hardware modulation/demodulation, no host CPU computation required.

Modulator (Transmitter):

l      Direct digital conversion to 50..950MHz for excellent signal quality

l      Support only non-hierarchy mode

l      Programmable digital attenuator

l      Free Windows Stream Player

l      Free Windows and Linux SDK

Demodulator (Receiver):

l      Support Worldwide Free to Air Digital Terrestrial (DVB-T) Receptions (5/ 6 / 7 / 8 MHz)

l      Standard Windows DVB-T BDA driver provided

l      Windows Media Center compatible DVB-T TV tuner


UT-100 - Applications

l      DVB-T signal generator

l      Demonstrations

l      Research and development

l      Video Broadcast/Distribution

l      Digital Signage

l      Wireless Display


Host Requirements

l  CPU: Intel, AMD, ARM, MIPS

l  128MB RAM of system memory or above

l  Higher CPU and memory required if DVB-T audio/video decoding is needed.

l  One available USB2.0 or 1.1 port
Note: USB 1.1 can only support 3~5 Mbps stream data rate.




RF Connector

Two 75-Ω MCX (female) connecters, one for Tx and one for Rx




5/6/7/8 MHz




2K, 8K


Code rate


1/2, 2/3, 3/4, 5/6, 7/8


Guard interval


1/4, 1/8, 1/16 or 1/32

Frequency range

50 .. 950MHz

VHF 6M BW/UHF 6M BW: Channel: CH7~CH83

VHF 7M BW/UHF 7M BW: Channel: CH5~CH69

VHF 8M BW/UHF 8M BW: Channel: CH5~CH69 


RF Output Level

0 dBm (108 dBuV)


Digital Attenuator 

Range:+6/-25dB* , Step size 1dB


35dB Typically

Spectrum Shoulder (Adjacent channel)

Phase noise  <-92dBc @ 10kHz  

Carrier Suppression


USB port  

USB 2.0 or USB 1.1  


5V DC (USB Bus Power)

390mA (Tx and Rx)

170mA(Rx only)

340mA(Tx only) 

Dimensions (LxWxH) 

75x 30 x 15mm


     Note: There could be MER loss in high gain/attenuation level.

Digital Signage Application Scenario-Wireless

Digital Signage Application Scenario-Wired