My experience with my Omni VI was the 250 hertz filter did indeed have much
more loss than the 500 hertz filter in both the 9 mhz and 6.3 mhz position.
There is a jumper to compensate for the 500 hertz filter loss but no
additional
jumper for the extra loss for the 250 hertz filters. I made little one
transistor
filter insertion amplifiers that I put on the input to these filters. I
experimented
with the gain until I saw no change in S meter reading when selecting these
filters.
Carl Moreschi N4PY
----- Original Message -----
From: "Carter Grabarczyk" <k8vt@ameritech.net>
To: "Bill KB9IV" <wmarvin@mnic.net>
Cc: <tentec@contesting.com>
Sent: Tuesday, September 10, 2002 9:09 AM
Subject: Re: [TenTec] Omni 6 Filter Question
> Bill,
>
> I've experienced the same problem with my Omni 6+ 250 Hz filter in the
> past. It most likely has nothing to do with a defective filter or the
> narrow bandpass (although anything can go bad). The fix as suggested by
> TT themselves is to clean/re-seat the pins on the filter where it plugs
> into its socket. A little Caig Laboratories De-Ox-It on the pins
> wouldn't hurt either. Waaaay cheaper than getting another filter.
>
> Please let us know if this does the trick...(it worked for me)
>
> 73/Carter/K8VT
>
>
> Bill KB9IV wrote:
> >
> > Hello, I have a Omni 6 and it has a 6 Mhz 250 Hz filter that has 10-12
dB loss compared to
> > the 6 Mhz 500 Hz filter......is this typical?? Are Inrad 9 Mhz 250 Hz
better for loss or
> > do I have a bad filter? Thanks in advance!
> >
> > 73, Bill
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