[Elecraft] [Bulk] Re Elecraft] Crackling in Headphones

[Don Wilhelm]

Peter,

I run digital modes with AGC on, I can't speak for anyone else.  The AGC 
in the K3 can be customized (see my website www.w3fpr.com).
"supposed to work better with AGC off" sounds like a generalized 
statement.  If there is an extra strong signal in the passband of the 
receiver, having AGC on will reduce the strength of all signals within 
the passband, but with the K3, all it takes is a turn of the width and 
shift knobs to isolate the desired signal so that reduction in gain due 
to the strong signal is no longer a problem. There is no need to have a 
full width waterfall when tuning to a specific signal.

73,
Don W3FPR

On 12/1/2015 9:33 AM, Peter Pauly wrote:
> What about digital modes? I thought they were supposed to work better 
> with AGC off?
>
> On Tue, Dec 1, 2015 at 9:30 AM, Don Wilhelm <w3fpr at embarqmail.com 
> <mailto:w3fpr at embarqmail.com>> wrote:
>
>     For those with 'Crackling in Headphones', I have to ask if you are
>     running with AGC off?  If so, the limiter can be kicking in and
>     cause such crackling.
>     Better than running with AGC off, just leave the AGC on and if you
>     reduce the RF gain to counter strong signals, the AGC action will
>     be reduced.
>     I know old habits die hard, but the K3 is not the same as my old
>     NC-100 receiver and needs to be operated differently.
>