Hello,
In having trouble getting CAT control working with KX3.
Digirig : Audio in and out, RTS ptt works serial dose not control radio.
Opening digirig com port with tera-term (38400 buad / com 3) radio dose not respond to commands.
Jumping the ring to the tip of the radio side in interface cable (black TRS), data typed into tera-term will echo to the screen, jumper removed local echo stops. (this confirms the com port is correct)
Using the KX-usb cable (from Elecraft, com 4 38400 8n1), and opening the correct com port, Cat control works, radio responds to tera-term (ie FA; returns current frequency of VFO a)
Ive toned out the KX3 cable, it is correct. reviewing the schematic for the digirig, manual of KX3. Everything looks correct. It should just plug in play.
I don’t know, what am I missing? I haven’t scoped the pins but that really shouldn’t be necessary…
What do you think?