[Elecraft] KX3 2 meter module help with amp keying

[Don Wilhelm]

Emory,

The KX3 ACC2 GPIO can be used for a number of functions, but only one at 
a time.  It is not a per band setting.

If it is set to LO-PTT, it will be active anytime the KX3 is keyed. 
There is no way I know of to restrict this output setting to any 
particular band, so you will have to come up with an alternate method of 
keying the external amplifier if keying it when not in use is going to 
be a problem.

If your 222 MHz transverter is an Elecraft XV222, you probably want to 
set the ACC2 menu to TRN CTRL so the XV222 will be sent the band data 
from the ACC2 and be selected when you set the KX3 to the 222 MHz band.  
Note, you cannot use the ACC2 to send band data to the XV222 and also 
send PTT to the external amplifier.

73,
Don W3FPR

On 8/13/2014 12:12 PM, ejkkjh at gmail.com wrote:
> I am using my KX3 2 meter module with a small amp.  The amp has a  keying input, when it goes to ground it keys the amp.  I have the ACC2 module/cable plugged into the ACC2 connector of the KX3.  The KX3 keys the amp to xmit but it does it on all bands, not just 2 meters.  The XV2 ADR write up in manual says to set it to TRN CTRL but that option does not come up in my menu?  I am using the RCA connector on the ACC2 cable and not sure what the 1/8 female stereo connector is used for?  The menu for ACC2 IO is now set to LO-PTT.
> I have spent quite a bit of time with this but not sure what to do next?
> I have a 222 meter transverter on XV1 but I have not checked it yet since I started using the KX3 2 meter module, once I get it working correctly I will see if the transverter still works and is keyed correctly.
> Any help or ideas would be appreciated.  Thank you  73
> Emory  WM3M
>