[Elecraft] RX Mush, why the fuss?

Don Wilhelm donwilh at embarqmail.com
Thu Mar 2 17:19:35 EST 2017


The AGC will not cause "hard limiting" - in other words, it should 
maintain linearity.

Even though the strongest signal in the passband will control how much 
AGC is applied, weaker signals in the passband should sound 
proportionally weaker.

Now that you mention hard limiting, there is a limiter in the K3 that if 
turned on will protect your ears.  I am wondering if some instances of 
reported receiver mush did have limiting set on - that would be 
particularly true for those who chose to ride the RF Gain and/or run 
with AGC off.

73,
Don W3FPR

On 3/2/2017 3:37 PM, ab2tc wrote:
> Hi,
>
> Where in Smith's article does it say that AGC with the slope set for 15 acts
> as a hard limiter? There is a huge difference between AGC action (which is
> simply a reduction in gain with linearity retained) and hard limiting.


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