It's a long time since I used my VI+ so my recollection may not be perfect
but fwiw.....
CW offset is indeed adjustable from the front panel and I believe sidetone
pitch tracks CW offset. What is not adjustable is filter centering, which
is fixed at 800Hz. If you're happy listening to a tone between 600-1000Hz
this works fine with cascaded filters as narrow as 500Hz. However, if your
preferred receive tone is 450Hz this doesn't work nearly so well. The
problem is significantly exagerated if 250Hz filters are used. Years ago, a
bunch of folks had filters made with lower centre frequency, so as to deal
with this problem. I'm not sure but I suspect Inrad made the filters and I
believe they were centred somewhere around 600Hz.
Bob, 5B4AGN
----- Original Message -----
From: "Roy" <royanjoy@ncn.net>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Sunday, July 01, 2007 2:56 PM
Subject: Re: [TenTec] OMNI-6+ cw offset adjustment
Was stated,
"The CW offset is fixed, but is adjustable with a trimmer capacitor
inside.
Regarding filters, I find...(etc.)"
No, the cw offset is programmable.
73, Roy K6XK
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