[R-390] Changing filters and frequencies

Fri, 25 Jan 2002 01:35:01 -0500

Align your IF's
----- Original Message -----
From: "Scott, Barry (Clyde B)" <[email protected]>
To: "R390 (E-mail)" <[email protected]>
Sent: Thursday, January 24, 2002 1:02 PM
Subject: [R-390] Changing filters and frequencies


> Something I noticed (for the first time) last night: when I switch between
filters, the received audio changes frequency.  For example, if I switch
from 4kc to 8kc, the dweedle-dweedle pitch changed ten or twenty cps.  Is
this normal?  If so, what causes it?  Is it the filters themselves or is
this an IF alignment issue?
>
> Thanks,
>
> Barry(III) - N4BUQ
>
>
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