UT-100C OpenCaster special edition (Tx only)


Ref. Price: US$185

OpenCaster - Features
l  OpenCaster is a toolset for enabling creation, management and transmission of complex digital video streams compliant with MPEG and DVB standards.
l  Ready to go examples inside, with full source codes for study, reference and enhancement.
lTarget: developers, schools/universities, ICT firms, broadcasters.
lApplications: Games, Infotainment, Poll, T-voting, T-commerce apps.
lRegistered users, in case of further interest and issues, will get support from Avalpa technical staff.

Find further details for Opencaster on http://www.avalpa.com/the-key-values/15-free-software/33-opencaster

UT-100C - 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 and 1200~1350 MHz 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

UT-100C 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.

General Specifications



RF Connector

75-Ω MCX (female) connecter

Bandwidth UT-100C 2/3/4/5/6/7/8 MHz


2K, 4K, 8K

Constellation 64QAM/16QAM/QPSK

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 and 1200~1350MHz
step size 1KHz

RF Output Level

0 dBm (108 dBuV)

Digital Attenuator 

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


50~950MHz, 35dB Typically
1200~1350MHz, 30dB 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)

340mA(Tx only) 

Dimensions (LxWxH) 

75x 30 x 15mm

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



Q: what exactly is the difference between the "plain" UT-100C and the OpenCaster bundle?

A: as of know the OpenCaster release 3.2 is officially only available on the bundle package, because we want people subsidizing the open source project to get MORE value for their money. this is how free (as freedom) software can sustain itself.

Q: The OpenCaster software is open source and freely available, so does this mean there is some additional component delivered with this bundle which is not part of the standard OpenCaster?

A: YES. the standard package is meant to use as TS source and sink the UDP transport. the UT100C application "tsrfsend" is only available on
the bundle package. Of course it's still open source.