[Elecraft] [K3] RX Audio/AGC

Don Wilhelm w3fpr at embarqmail.com
Thu Jan 23 18:55:35 EST 2014


Mike,

I don't know if it will help in your situation, but take a look at my 
webpage www.w3fpr.com article on "Noisy K3" for some guidance to setting 
the AGC parameters.  Yes, changing the slope may be helpful, but you 
will have to experiment a bit.

Turning the preamp off and perhaps the attenuator on may help as well.  
Then too, if you are running with noise reduction turned on, that could 
create some 'funny situations' that are similar to what you are hearing 
- try with NR turned off.

73,
Don W3FPR

On 1/23/2014 6:39 PM, mikerodgerske5gbc at yahoo.com wrote:
> I have a ongoing nuisance.  On USB it seems high voices will pop/crack just like if AGC was off and hitting the AF limiter. Reducing RF Gain clears it up.
> Turning agc threshold down has no effect.
>
> Is there a agc setting that might correct this?  I haven't tried slope which is 15 (max).
>
> I get the qth list as daily digest and yahoo as individual email. It's much easier to respond on yahoo. I've posted to both.
>
> Thanks
> Mike R
>



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