[Elecraft] Anyone been successful doing this?

[john at kk9a.com]

Good advice, especially the caution on the keying current of older amps!
Also notice that Jim did not say to connect the ALC, just watch your K3
drive level.

John KK9A


Jim Brown K9YC wrote:

On 1/15/2023 9:46 AM, Tom & Barb Valosin wrote:
> How did you do it? That is, what connections are required other that the 
> K3 RF out to the amp RF input?

Study the manuals for both units. For all the amps I've used (three 
different Ten Tecs, an ACOM, both KPAs), Key Out from the K3 to Key In 
for the amp was all I needed, but it depends on the positive/negative 
logic of the amp. In a well-designed amp, the Key Input will drive a 
transistor, so very little current. You may also need to set a longer 
delay in the K3 do allow for the amp's T/R relay(s) to pull in. I 
remember a longer setting being required for an Ameritron I encountered 
at a contest multi, but that was from an FT1000MP. There's a menu setting.

73, Jim K9YC