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Re: [RTTY] RTTY Question

To: rtty@contesting.com
Subject: Re: [RTTY] RTTY Question
From: billknn@aol.com
Date: Thu, 20 Sep 2007 09:33:19 -0400
List-post: <mailto:rtty@contesting.com>
My HAL ST-6000 manual?advises? "A slow AGC with fast attack and slow decay is 
very desirable when receiving FSK signals."

I don't really use the HAL, but I use an IC-746 Pro, FSK, with MMTY. The 
selectable AGC time constants available on the 'Pro are:
?off, 0.1, 0.2, 0.3, 0.5, 0.8, 1.2, 1.6, 2.0, 2.5, 3.0, 4.0, 5.0,?and 6.0. I 
realize that different conditions such as the presence of strong adjacent 
signals, QRN,?etc?can require different AGC settings, but I was wondering what 
some of the experienced hands recommend for a good starting point AGC for RTTY 
(FSK). Clearly, I use different settings for CW and SSB and sometimes use the 
old-timers technique of manually riding the Rf gain?control using those other 
modes. I use a delta loop antenna which usually provides a very good signal to 
noise ratio.

I'd appreciate any advice and I promise not to use any advice?received as an 
unfair advantage in any contest.


Bill, KD5XN

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