I have the 219 on an Omni 6 Plus. It's centered at 750 Hz and
would not be usable at offsets much below 600 Hz. I would think
that the 221 would be usable with a 400 Hz offset but you would be
very near the knee in the curve. Certainly the pass band tuning on
the 6+ (not sure about the 6) has a wide enough range to allow any
of the 6.3 MHz filters to be cascaded with either the 219 or 221
filters. I'm a little unclear as to exactly what you meant by
cascading but you could not cascade the 219 and 221 since they are
both in the 9MHz IF and you can't use both at the same time.
---
73, Rich - W3ZJ
> -----Original Message-----
> From: owner-tentec@contesting.com
> [mailto:owner-tentec@contesting.com]On
> Behalf Of k2mme@juno.com
> Sent: Wednesday, May 10, 2000 11:47 AM
> To: tentec@contesting.com
> Subject: [TenTec] #221 250hz filter re:omni6
>
>
>
> Does anybody have any experience with the #221 and #219
> filters on the
> omni6??
> I retuned my bfo oscillator to allow me to set offset
> at 400hz and be
> able to use cascaded 250hzfilters. At that time, Ten
> Tec did not offer
> a filter centered at 500hz. Does the 500hz job allow
> the cascading at
> low offsets??? Ar they lined up? Would like to hear
> comments before I
> order up a 221.
> 73 Howie K2MME
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