[Elecraft] [K3] GPIO input to switch output power with external amplifier on?

[Thomas Horsten]

Hi Eric,

Thanks for this information. I'll drop the idea for now - but could you or
Wayne think of some alternative way to trigger the "external amplifier
active" mode in the K3? It would really be useful, I've nearly melted my
amplifier a couple of times.

73, Thomas M0TRN

On 4 September 2012 16:15, Eric Swartz WA6HHQ - Elecraft
<eric at elecraft.com>wrote:

> I apologize, but we -strongly- ask that people do not try to send their
> own auxbus signals to the K3. This is a critical proprietary timing
> component of internal K3 operation and improper use will cause serious
> problems for the K3, including possible damage of internal components
> during disturbed T/R timing. Its is not a simple serial interface.
>
> Also, additional non-Elecraft products loading down this bus may cause
> serious timing errors inside the K3. This will cause all sorts of strange
> and intermittent problems.
>
> This is one area of modification that will void the warranty when problems
> arise. We are not set up to support any user questions or problems in this
> area when non-Elecraft equipment is hooked up to the auxbus pin.
>
> 73,
> Eric
>