Message-ID: <000601c078bd$ef3edb80$d4b6883e@lvm>
From: "LAWRENCE MAYHEAD" <laurie@g3aqc.freeserve.co.uk>
To: rsgb_lf_group@blacksheep.org
Subject: LF: Re: Re: ARGO Build 113
Date: Sun, 7 Jan 2001 15:23:59 -0000
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No problem now I understand ! many thanks,Laurie
-----Original Message-----
From: Alberto di Bene <dibene@usa.net>
To: rsgb_lf_group@blacksheep.org <rsgb_lf_group@blacksheep.org>
Date: 07 January 2001 14:38
Subject: LF: Re: ARGO Build 113


>LAWRENCE MAYHEAD wrote:
>
>> Good morning Alberto,
>> I have another small problem with build 113 recently downloaded.A signal
>> which produces a good display on build 110 seems to be far too strong for
>> 113.So I have to reduce the sensitivity greatly, or I have to switch OFF
the
>> AGC. It seems as if this switch function is reversed! on build 113. What
do
>> you think. 73s Laurie.
>
>Hello Laurie,
>              thanks for the feedback.
>The fact is that the program is optimized for weak, very weak, signals, and
the
>last mods to the AGC routine are a further step in that direction.
>So, with strong signals Argo is blinded, so to speak.
>The AGC function is not reversed. Probably you were in a condition of low
>noise and strong signal, and this new AGC compares the strength of the
signal
>to the background noise level to compute the brightness to put on the
screen.
>Build 110 used a different method.
>I will put in the next version a low sensitivity mode, for when the signals
are strong.
>
>73   Alberto   I2PHD
>
>
>
>