The keying output at the KX3 is on the ring, not the tip, of ACC2.
> Thanks Adrian for you advice. I did change the ACC2 IO setting to
> LO=PTT. The KX3 still will not key the KPA500 when I press the mic
> button. The KX3 goes into transmit but not the KPA500. I have the
> center wire from the KPA500 PA Key connected to the tip of the 2.5mm
> plug going into the KX3. If I reverse the lead on the cable (from
> the PA Key to the ACC2IO) the KPA500 does go into transmit without
> me keying the KX3. That is where I was before, I have to put the
> KPA500 into standby to receive and then put it into operate when I
> want to transmit. For your information I do use my KPA500 with my K3
> and it works perfectly. I did discount the custom cable between the
> K3 and KPA500 when I connected my KX3 to the KPA500.
>
> Is there any setting on the KPA500 menu that I need to change? Any
> ideas?
>
> Thanks
>
> Dave WA6DKN
>
>
>
>
>> I can't figure out how to set the ACC2IO on the KX3 so that it will
>> key
> the KPA500 properly. I currently have the >ACC2IO in the off
> position. When
> I connect the cable between the ACC2IO and the PA Key on the back of
> the
> KPA500 it puts >the KPA500 in a transmit mode. I have to manually
> put the
> KPA500 in standby to receive and then Operate to transmit. I >have
> tried a
> number of different settings on the KX3 and KPA500 with no success.
> What am
> I doing wrong? (incidentally >the KX3 will drive the KPA500 to
> almost 200
> watts output).
>
> ACC2 IO setting > LO=PTT (input; apply 0 V or ground to
>
> activate PTT)
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