[Elecraft] KPA500 - Rx Attenuation

[W0MU Mike Fatchett]

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: elecraft-bounces at mailman.qth.net
> [mailto:elecraft-bounces at mailman.qth.net] 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
> --
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