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Re: Topband: BDR redux

To: <jkaufmann@alum.mit.edu>, "Topband" <topband@contesting.com>
Subject: Re: Topband: BDR redux
From: "Oleg Skydan" <skidan@mail.ints.net>
Date: Wed, 11 Feb 2004 09:04:25 +0200
List-post: <mailto:topband@contesting.com>
Hi, John and All,

Thank you very much for the information about AGC in IC-781.

I can add just a few comments
> Above threshold, the AGC clamps the audio output at a constant level with
no
> measureable change in audio output for increasing signal input.  There is
> definitely no gain "slope" and no other obvious magic.

I tryed an AGC with flat response above threshold (and my AGC does so when
receiving
the digital modes), but I found a more pleasant sound when a stronger signal
are a bit louder,
so I prefer some gain slope above the threshold (10dB:1db ... 20dB:1dB).

I am thinking of making slope adjustable, but I am not sure about its
usefulness.

All the best,
Oleg
73 de UR3IQO

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