The UV-K5 v1 has a devoted firmware community, but its non-standard CW pinout means most off-the-shelf CW cables won’t work without cracking open the radio. This adaptor fixes that.
Plug the 3.5mm TRS pigtail into your UV-K5 v1’s side port, then connect any CW paddle or key to the 3.5mm female jack on the other end. The onboard resistor network (10kΩ / 20kΩ) matches the voltage divider spec in any CEC compatible firmware schematics, so your radio reads the paddle inputs correctly.
Known Compatible Firmware
- CEC firmware
- NR7Y firmware (Highly Recommended)
- Other popular Quansheng UV-K5 alternative firmwares that support CW keying using the CEC hardware spec
- NOTE: This was designed to function with the CEC firmware releases. Depending on your software and version, you may have to choose ‘CEC Reverse’ cable style. Additional details HERE.
In the Box
- 1x CW adaptor with 6” 3.5mm TRS male pigtail
Print Your Own Enclosure:
Compatible with UV-K5 Version 1 only. Check your firmware documentation to confirm CW keying is enabled before use.
