Re: Noise Blankers

Posted by Wes Stewart-2 on Sep 04, 2017; 3:39pm
URL: http://elecraft.85.s1.nabble.com/Noise-Blankers-tp7634010p7634061.html

In addition to the hard limiter Elecraft provided threshold and slope controls
in the AGC system.


On 9/3/2017 4:04 PM, Ron D'Eau Claire wrote:
> The advantage of controlling the gain manually is not an "old wife's tale". Rather, it's clearly just a technique that is not for everyone.
>
> AGC will reduce the gain according to the strongest signal inside the I.F. passband. Manually riding the "RF" gain ensures that a very weak signal is not affected by a strong signal that is also inside the I.F. passband. Of course that means your ears could be blasted by that strong signal, which is why Wayne included a hard limiter that can be enabled to chop such a signal down to size, making it no louder than the weak signal we want to copy.
>

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