After much researching it seems that the only current firmware’s for the Quansheng UV-K5 that can transmit Morse code are:
- IJV
- EGZUMER
- CEC
However, the IJV firmware only supports the direct connection of a straight key. A paddle can be used but would require a keyer- not ideal for SOTA.
EGZUMER firmware appears to be focused on receiving quality and features.
This leaves the CEC firmware as a good option for CW transmission as it allows the direct access of a paddle or a straight key.
This is a link to a sample video showing the CEC firmware (CEC_0.1x) in operation on a UV-K5(8) which is a version 1 radio.
UV-K5 CW Operation with Paddle
Here is a compatibility comparison for the 3 firmware’s mentioned:
Firmware V1 V3
IJV Yes-all versions Only V3.00 & above
EGZUMER Yes No
CEC Yes No
Paul,
VA6TTX