https://cablematic.com/en/products/multiple-hdmi-transmission-through-coaxial-cable-catv-dvb-t-tx-rx-HN021/
Multiple HDMI transmission through coaxial cable CATV DVB-T Tx Rx
- HDMI signal transmitter using TV, CATV or DVB-T coaxial cable.
- Uses conversion of digital HDMI video to 64QAM digital TV.
- This kit includes a transmitter module and a receiver module.
- Possibility to buy more transmitter modules separately (reference #HN23).
- Possibility to buy separately morereceiver modules (reference #HN22).
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- HDMI signal transmitter using TV, CATV or DVB-T coaxial cable.
- Uses conversion of digital HDMI video to 64QAM digital TV.
- This kit includes a transmitter module and a receiver module.
- Possibility to buy more transmitter modules separately (reference #HN23).
- Possibility to buy separately morereceiver modules (reference #HN22).
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HDMI signal transmitter via DVB-T or CATV coaxial cable (digital TV antenna cable). The system allows connecting several transmitters and several receivers, in the same coaxial cable network. It is possible to use several coaxial cable splitters/duplicators, to mount an HDMI signal distribution network, through coaxial cable. It is possible to use the pre-installed TV coaxial cable installation. Allows transmissionof HDMI signal over long distances.
Specifications
- HDMI signal transmitter using TV, CATV or DVB-T coaxial cable.
- Uses conversion of digital HDMI video to 64QAM digital TV.
- This kit includes a transmitter module and a receiver module.
- Possibility to buy more transmitter modules separately (reference #HN23).
- Possibility to buy separately morereceiver modules (reference #HN22).
- It is possible to carry out an installation with several transmitters and several receivers.
- Each transmitter/receiver module has an operating channel selector (0-99 channels).
- More than one channel can coexist in the same coaxial cable installation.
- Maximum input resolution: 1080p @ 50/60 Hz.
- Maximum output resolution: 1080p @ 50/60 Hz.
- Maximum HDMI resolution: 1920 x 1080 @ 60 Hz.
- Video encoding: H.264.
- Audio coding: MPEG2.
- Compatible coaxial cable: RG6, RG7, RG11, etc.
- Operating frequency: 100-1000 MHz.
- Maximum data transmission speed: 31.6 Mbits.
- Delay in the transmission: 500 ms.
- Consumption: 3.5W (Tx) and 3W (Rx).
- Size of each module: 130 x 68 x 24 mm.
- Tx module connectors: HDMI female (input) and F-female connector (RF output).
- Rx module connectors: HDMI female (output) and F-female connector (RF input).
- Channel selector for each module, with 2-digit LCD display (0-99 channels).
- Two 5VDC power supplies are supplied.
- Gross Weight: 630 g
- Product size (width x depth x height): 13.0 x 7.0 x 2.2 cm
- Number of packages: 1
- Packages size: 20.5 x 15.0 x 8.0 cm
Technical terms
- HDMI
- Hz
- F connector
- 1080p
HDMI (High-Definition Multimedia Interface) is a digital interface standard designed for the simultaneous transmission of uncompressed audio and video streams from a compatible source to a digital display or receiver.
This interface employs Transition-Minimized Differential Signaling (TMDS) to maintain data integrity at high frequencies. Throughout its revisions, HDMI has evolved from a basic digital video solution into a complex data bus capable of carrying 4K signals at 60Hz, dynamic metadata, and bidirectional control protocols between devices.
| Version | Bandwidth | Audio/Video Support |
|---|---|---|
| 1.0 - 1.2 | 4.9 Gbit/s | 1080p @ 60Hz, 8 LPCM channels |
| 1.3 - 1.4 | 10.2 Gbit/s | 4K @ 30Hz, Deep Color, ARC, Ethernet |
| 2.0 | 18.0 Gbit/s | 4K @ 60Hz, 32 audio channels, HDR |
The mass adoption of the HDMI standard has transformed the interconnect architecture in multimedia data centers and high-performance workstations. Its ability to integrate Audio Return Channels (ARC/eARC) and Ethernet connectivity (HEC) has drastically simplified structural cabling, eliminating the need for multiple redundant analog and digital cables while ensuring signal integrity over significant distances through active equalization.
CEC Control and Multi-Streaming Integration
A critical innovation in version 2.0 is the ability to deliver simultaneous dual video streams on the same screen and up to four independent audio streams, optimizing bandwidth for multi-user applications.
Key Advantages
- Pure digital transmission avoiding D/A signal degradation.
- Full backward compatibility across all standard versions.
- Native support for high-resolution audio formats like Dolby TrueHD and DTS-HD.
- Support for 21:9 cinema aspect ratios and dynamic lip-sync.
Note: Final interface performance is dependent on the cable certification (Standard, High Speed, or Premium High Speed).
