[Elecraft] [K3] Possible remedy for my noisy K3 and hiss?

[Don Wilhelm]

Mike,

With that low a threshold setting, I suspect that you evaluated that 
setting with noise alone rather than how much noise is heard between 
breaks in the signal.

Review the "Noisy K3" article on my website www.w3fpr.com paying 
particular attention to the 'Caution' note in the AGC THR section.

That article will give you guidance on what the effects of the changes 
will be so you can evaluate each separately.
Do the evaluation with any external NR speaker bypassed or removed.

73,
Don W3FPR

On 3/19/2013 10:53 AM, Mike Rodgers wrote:
> I'm in the early stages of trying this out but thought I'd share in interest of helping someone else.
>
> I've been using AGC threshold 10.
> Im always fiddling with attenuator and rf gain.
>
> I was listening to some activity on 20 & 40 and began playing with agc settings.
> I ended up at a threshold that is totally not what I suspected to like. 2. You've got to be kidding,right,2?
>
> The downside is this can really decrease volume available especially with NR. I've just been using this a night and morning but one thing is apparent, I'm not constantly fiddling with attenuator and rf gain anymore.
> Threshold 2 slope 5-10.
> Noise level s5 on 20m.
>
> I also picked up a GAP/BHI speaker and like the NR. It doesn't reduce volume as much. The best K3 match I found is NR F8-2 or 3. I really don't wish to use NR.
>