XK-F143THS 1.4 GHz COFDM Video Transmitter
Use an HDMI or SDI camera in a 1.4 GHz COFDM video system. The listed XK-F143THS configuration combines 33 dBm (2 W) RF output with H.264 encoding for equipment requiring a separate wireless video transmitter.
- HDMI and SDI inputs connect the transmitter to digital video sources without assuming an IP-camera interface.
- The listed 1421–1453 MHz configuration identifies the frequency range to match with the receiver.
- 8–25 V DC input, nominal 12 V; consumption is ≤18 W at 33 dBm (2 W).
- RS232 data and configuration connections support serial integration alongside video.
XK-F143THS 1.4 GHz COFDM Video Transmitter Overview
XK-F143THS provides a 1.4 GHz option for a COFDM video installation using an HDMI or SDI source. H.264/AVC encoding and listed input formats up to 1080p60 give the camera and receiver selection a clear starting point.
Its RF output rating describes transmitted power; the ≤18 W electrical consumption at that setting is the figure relevant to the platform power budget. Xingkai checks the source format, receiver arrangement and frequency configuration before quoting the units and accessories for your project.
Technical Specifications
Listed configuration. The quotation identifies the supplied units and accessories.
| Parameter | Listed configuration |
|---|---|
| Frequency range | 1421–1453 MHz |
| RF output | 33 dBm (2 W) |
| Video inputs | HDMI / SDI |
| Video encoding | H.264/AVC |
| Video formats | Listed formats up to 1080p60 |
| Power input | 8–25 V DC; nominal 12 V |
| Power consumption | ≤18 W at 33 dBm (2 W) |
| Channel bandwidth | 2 / 3 / 4 / 6 / 7 / 8 MHz |
| Video bitrate | 0.5–18.8 Mbps |
| RF attenuation | 0–31.5 dB |
| Configuration port | RS232; 9600 baud |
| Data port | RS232; 1200–115200 baud |
| Encryption | AES128 / AES256 |
Connect the Camera and the 1.4 GHz Receiving Path
F143THS takes HDMI or SDI video into its 2 W H.264 link. For an existing receiving station, first check that its tuning covers the proposed channel within 1421–1453 MHz, then align channel bandwidth, decoding and encryption settings. A broad “1.4 GHz” description does not define that receiving configuration.
RS232 configuration uses 9600 baud; the separate data connection supports 1200–115200 baud. These serial roles sit alongside the camera feed, allowing the video and application-data connections to be specified separately.

Specify the F143THS 2 W Link
Specify F143THS for a selected HDMI or SDI source and a channel in the listed 1421–1453 MHz range. The quotation defines the 2 W transmitter, proposed H.264 receiving arrangement and accessory scope, with the receiver and antenna requirements addressed separately from the transmitter input.
Send the camera’s output format, required channel and receiver model, including existing radio and decoding settings. State the available DC supply and transmitter/receiver quantities.
Xingkai checks the 2 W H.264 configuration, frequency within 1421–1453 MHz and proposed channel bandwidth, then quotes the transmitter, receiving equipment and agreed antennas and cables.
Agree the source format, receiver arrangement, radio settings and equipment quantities. Check the 8–25 V supply and listed ≤18 W condition at 2 W RF output, then confirm delivery terms.
Xingkai supplies and ships the agreed F143THS units and listed components according to the confirmed order.
FAQs
Not with the listed F143THS frequency configuration. First establish whether the receiving equipment can move to an agreed channel inside 1421–1453 MHz while retaining a suitable bandwidth and H.264 decoding arrangement. If its tuning cannot cover the proposed channel, the receiving side or transmitter selection must be reconsidered. State the actual channel before ordering rather than requesting a radio described only as “1.4 GHz”.
CVBS is not listed as a direct input on this model. Identify the camera and its output so any conversion equipment, or an alternative transmitter with a CVBS input, can be considered in the configuration.
The transmitter input does not define the receiving output. Send the receiving equipment model and the processing system’s required input format, including whether it needs decoded video or a transport stream. Xingkai checks the proposed receiving arrangement and identifies the equipment in the quotation.
Use the listed ≤18 W consumption at the 2 W RF setting, rather than the 2 W RF-output label. At 12 V, that electrical condition corresponds to ≤1.5 A by calculation. It is a budget for the stated condition, not a published startup-current or complete power-supply rating. Include other equipment loads separately and confirm the supply arrangement for the installation; a power adapter is not assumed to be part of a transmitter-only order.
No specific operating distance or video delay is guaranteed for an unspecified installation. The listed end-to-end video delay is about 300 ms; the usable distance also depends on the route, line of sight or obstructions, installation heights, antennas and receiving arrangement. Send those conditions with the target distance and video format. Xingkai checks the proposed configuration and identifies the equipment and settings in the quotation; any project-specific range or latency requirement needs to be agreed separately.
Compare Related Models
Four-SDI-Input COFDM Video Transmitter. Compare the documented interfaces and supplied configuration for your project.
HDMI, SDI and CVBS COFDM Video Transmitter. Compare the documented interfaces and supplied configuration for your project.
COFDM HD Video Receiver. Compare the documented interfaces and supplied configuration for your project.
H.265 COFDM Video Transmitter. Compare the documented interfaces and supplied configuration for your project.
Request a Configuration Quote for XK-F143THS
Need a 2 W H.264 link for an HDMI or SDI camera? Send the exact channel and camera format, and identify any receiving equipment already installed. Xingkai will check the F143THS configuration and quote the required equipment and accessories.





