If you are running psk like I do....center the recieved signal on 2000 hrz
on the waterfall, click in N2. Anything below 2000 hrz just
dissapears...click in the additional 250 hrz cw filter and one can use psb
to really narrow down the passband to just only seeing the one psk signal.
Wonder if the new Omni 7 can do this?
----- Original Message -----
From: "John Huffman" <hjohnc@adelphia.net>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Friday, April 20, 2007 2:03 PM
Subject: [TenTec] Omni VI Pass Band Tuning CW Narrow
>I have a new-to-me Omni VI+. I have a question concerning pass band tuning
>and the filters.
>
> My Omni VI+ has these filters:
> 9MHZ
> (48058) 9429 8-pole -2.4 khz
> N1
> (48058) 9918 8-pole -2.4 hz
> N2
> 219 (48055) 6-pole -250 hz
>
> 6.3 MHZ
> 282 (49054) 6-pole -250 hz-
> 285 (48053) 6-pole -500 hz-
> 288 (48075) 8-pole -1.8 khz-
> Standard - 2.4 khz
>
> I view my audio output using Spectrogram (wonderful for zero beating for
> those of us with
> a tin ear). Using Spectrogram you can see the range of audio frequencies
> being sent to
> the headphones and speaker.
>
> When I turn the PBT knob, I can see the passband shift up or down for each
> filter except
> the 219 (48055) 6-pole -250 hz in position N2. That filter doesn't move.
>
> If the knob on the PBT is centered it shows passing a narrow band of
> frequencies (although
> not as cleanly as the other filters). If I turn the knob fully CCW there
> is no change in
> the frequencies or width. If I turn the knob CW, the audio fades and
> disappears as The
> knob is turned.
>
> Is this normal? The filter in the N1 position behaves as expected.
>
> 73 de K1ESE
> John
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>
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