Topband: how to hear through static crashes?

k6xt k6xt at k6xt.com
Tue Mar 27 18:13:59 PDT 2012


This isn't necessarily a plug, and I have no pecuniary interest. 
Thankfully the K3 has an adjustable audio limiter, and also a hi/lo gain 
setting, for those of us who use these techniques listening thru static 
crashes. Previous rigs occasionally pasted my ears good no matter how 
adjusted.

An audio gain issue with K3 and probably other newer rigs is they're so 
quiet on a quiet band I often am listening to, or even working, DX that 
is not moving the "meter". Audio limiting is only partially effective on 
the occasional simplex caller (or jammer). Backed off RF gain, advanced 
AF gain contributes to this.

73 Art K6XT~~
Success is going from failure to failure without a loss of enthusiasm.


On 3/27/2012 1:00 PM, topband-request at contesting.com wrote:
> Message: 5
> Date: Tue, 27 Mar 2012 12:14:06 -0700
> From: "Bruce"<k1fz at myfairpoint.net>
> Subject: Topband: how to hear through static crashes?
> To:<topband at contesting.com>
> Message-ID:<3291D4CA6AFC445CB1835163AFA53796 at k1fzPC>
> Content-Type: text/plain; format=flowed; charset="iso-8859-1";
> 	reply-type=original
>
> - otherwise the static crashes will
>> >  blow your eardrums out with the high AGC threshold.
> Years ago in the late 1990's,  early 2000's when I was doing serious
> contesting I found a good remedy. An old ARRL handbook had a
> diagram of two diodes (one for positive peaks, the other for negative peaks)
> biased with  batteries, plus variable  pots, to clamp headphone audio for
> maximum confortable level. Built it up and worked well.
> 73
> Bruce-K1FZ


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