[Elecraft] Turning on a KX3 remotely

[John Newgas]

On May 13, 2019, at 10:48 PM, Kenneth P Alexander <ve3hls at gmail.com> wrote:
> ...I'm sure there will be occasions when I will have to shut down and re-start the KX2, but this
> seems to be impossible because the 2-button on/off switching can't be done
> remotely.

On the KX3 you can turn on the radio remotely.  The instructions are on p28 of the manual and say
"To turn the KX3 on, a remote-control system can place 8 to 12 volts DC on the mic jack’s PTT line for 100 ms or longer.”

I use my KX3 remotely two floors up via a Raspberry Pi where  I can either run digital programs WsJTX or JT8CALL on and operate remotely via VNC, or I use “ser2net” and run Pignology KX3UI or similar.   I haven’t yet cracked send sound over the internet as I mainly use JS8call.  Of course PSK31 would be even easier

I set the timeout on the KX3 fairly low, so that if something goes wrong the KX3 will automatically shutdown and can be restarted.

John G7LTQ