HDMI - COFDM (DVB-T) Modulator: Signal-751

Front view

Rear view

The included accessories

SIGNAL-751 R86751 is a multifunctional device that encodes input HDMI signal to IP stream and modulates RF signal (a set of carrier frequencies) in accordance with DVB-T standard (COFDM). The signal provided to the HDMI input can vary from SD to Full HD.
The device has HDMI and RF inputs and RF (DVB-T) plus IP outputs.

The device is a single-channel modulator, which means that the output DVB-T multiplex contains one channel modulated by the source signal. Wide configuration options allow for combining the output DVB-T multiplex with existing DVB-T broadcasts distributed in the system, in a manner chosen by the administrator or investor (adjustable parameters include LCN, SID, PID, NIT).

When the user needs to distribute two channels from two different signal sources, we recommend to employ two-channel model Signal-752 R86752.

The source signal may come from a media player, DVR, Blu-ray, PC, STB decoder etc. So, the modulator can distribute highest quality content in DVB-T standard, via cable television installations (shared/MATV antenna systems), including professional applications in industrial/campus/hospital/commercial TV and CCTV systems. The maximum output bit rate is determined by DVB-T standard (31.68 Mbps, with a maximum bit rate of the video stream of 19.5 Mbps).

Another advantage of the device is the ability to provide parallel UDP/IP stream (IP multicast technology).

Basic configuration settings such as output frequency, stream bitrate, the type of the modulation are performed using the buttons and display located on the front of the modulator. More advanced configuration options are available through http protocol (NMS - Network Management System).

Functional diagram of the device

Distribution of COFDM-modulated RF signal via RF network (up to Full HD quality) and IP multicast streaming