[Elecraft] KX3 and KPA500

[Don Wilhelm]

Yes, Bernie has it right - tip and ring are reversed in the manual, and 
it is the KEYLINE OUT signal that is needed.  PTT is an input.  Connect 
your KPA500 keying line between ring and the shell.

73,
Don W3FPR

On 6/10/2012 1:40 PM, w1az at comcast.net wrote:
> I haven't tried this (don't have an amp) but an errata sheet that came with my kit indicates that the keyline output is on the ring of the acc2 plug, not tip as indicated in the original manual. I don't think the ACC2 IO setting has anything to do with the keyline output, it's used for other control purposes.
>
> Bernie
> W1AZ
>
> ----- Original Message -----
> From: "Carlson David"<wa6dkn at gmail.com>
> To: elecraft at mailman.qth.net
> Sent: Sunday, June 10, 2012 1:34:24 PM
> Subject: [Elecraft] KX3 and KPA500
>
> 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.