The Omni VI first IF is 9 mhz. You have always been able to get narrow
filters there.
Carl Moreschi N4PY
----- Original Message -----
From: "Scott Johns" <petvet@adelphia.net>
To: <tentec@contesting.com>
Sent: Monday, June 16, 2003 11:31 AM
Subject: RE: [TenTec] Omni6+ roofing filter
> Pete,
>
> I'll check the first IF and let you know...have to get to work now but
> will try looking it up thisafternoon.
>
> 73, Scott
>
> -----Original Message-----
> From: tentec-bounces@contesting.com
> [mailto:tentec-bounces@contesting.com] On Behalf Of Pete Smith
> Sent: Monday, June 16, 2003 11:07 AM
> To: tentec@contesting.com
> Subject: Re: [TenTec] Omni6+ roofing filter
>
> At 08:09 AM 6/16/03 -0700, you wrote:
> >INRAD did some experiments with a narrower roofing filter in the OMNI
> VI
> >and the improvements were not large. The OMNI VI has such a solid
> front
> >end that the roofing filter is apparently not a big deal. You can call
>
> >George up at INRAD and ask about it, he is usually happy to discuss his
>
> >thoughts.
> >
>
> What frequency is the OMNI 6+'s first IF? On many general coverage
> radios,
> the first IF is up in the lower VHF region, apparently to reduce
> spurious
> responses. I talked with George at some length at Dayton this year, and
>
> her indicated this is a big problem with fitting a narrower roofing
> filter
> to some radios, such as the Yaesu Mark 5. It's not easy to build a
> narrow
> crystal filter at 70 MHz, I gather.
>
>
> 73, Pete N4ZR
> The World HF Contest Station Database was updated 9 May 03.
> Are you current? www.pvrc.org/wcsd/wcsdsearch.htm
>
>
>
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