[Elecraft] KRC2 and KX3

[Jack Brindle]

This is not a good idea - the two are not compatible. The KX3 does not speak the auxbus protocol the KRC2 needs, plus the voltage levels are not compatible.
The best way to use the KRC2 with the KX3 is to use serial port communications. Realize the KRC2’s highest data rate is 19200 bps. Also remember that the KRC2 does not implement the full EI-232 interface, so be sure to fabricate a cable that only connects pins 2, 3 and 5 to the radio (or computer).

Jack Brindle, W6FB
Elecraft Engineering

> On Mar 6, 2016, at 10:40 AM, Robert Vargas-KP4Y via Elecraft <elecraft at mailman.qth.net> 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....
> 
> 73,
> Robert-KP4Y/W4
> 
> Sent from my iPhone
> 
> 
> Sent from my iPhone
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