[Elecraft] Macro to turn an external amplifier on and off

[Mike Harris]

G'day,

> The technique probably has other applications, like controlling 
> filters or preamps, etc.
>
> A new MP command allows you to set the DIGOUT1 control line (pin 
> 11 of the K3 accessory
> connector) to go to ground. This line is per-band and per antenna. 
> This line can sink only
> 15 ma, so I used a simple PNP transistor switch to operate a relay 
> which enables my amplifier.

As already used by the PR6 pre-amp - CONFIG: DIGOUT 1 on 6M per 
antenna.

Regards,

Mike VP8NO