I have seen this as well and it was a problem with the PTT line.
Mike W0MU
On 2/10/2013 3:58 AM, Dick Dievendorff wrote:
Make sure that the amp's PTT line is not pulled low when you expect to be
receiving.
73 de Dick, K6KR
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of AG0N-3055
Sent: Saturday, February 09, 2013 8:24 PM
To: John K3TN
Cc: elecraft
Subject: Re: [Elecraft] KPA500 - Rx Attenuation
On Sat, 9 Feb 2013 19:51:09 -0800 (PST), John K3TN wrote:
I thought 40M signals sounded kinda low, and the noise floor on the P3
was down - but then noticed when I turned the KP!500 from OPER to
STBY, signals came about 15db. No fault indicated. TX power seems fine.
Any thoughts?
I'm currently investigating a similar problem. To speak to your issue, I
have not seen it at all. However, there is something similar happening on
the frequencies below 160M.
Gary
--
Web: http://ag0n.net
NodeOp Page: http://ag0n.net/irlp
Node 3055: http://ag0n.net/irlp/3055
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