[Elecraft] KRC2 and KX3

[Don Wilhelm]

Robert,

The KX3 ACC2 I/O menu parameter should be set to TRN CTRL.

The output of the KX3 ACC2 IO is 3 volt logic while to KRC2 uses 5 volt 
logic.  It may be that the AUXBUS signal from the KX3 is not properly 
switching the input of the KRC2.  You may have to add a 3V to 5V 
translation circuit.
Note that I have not tried the KRC2 with the KX3.

73,
Don W3FPR

On 3/6/2016 1:40 PM, Robert Vargas-KP4Y via Elecraft wrote:
> Hello,
>
> I'm trying to interface a KX3/KXPA with a kRC2 band decorder. Basically, I built a cable to connect the AuxBus pin on the KRC2 XCVR port t the GPIO input on the KX3-KXPA adapter cable, which is driven by KX3 ACC2 port. This doesn't seem to be working and I'm not sure the right setting is enabled for the ACC2 port to allow for AuxBus communications. Has anyone tried this? Any help is appreciated....
>