[RFI] Low pass filter opinions

[Eduardo Somoano C]

Dear John :

Although my situation is different because my TV is not for cable, I think
that it is impossible to eliminate ITV in the channel 2.

I built several LPF and use the Drake TV-1000, everything was a failure.

I am sentenced to not making radio in 6 and 20mtrs in my house.

Good luck. - 73 and happy 2011.

Eduardo. CO8LY

----- Original Message -----
From: "John Geiger" <aa5jg at fidmail.com>
To: <rfi at contesting.com>
Sent: Tuesday, January 11, 2011 8:49 PM
Subject: [RFI] Low pass filter opinions


What have list members found to be the best low pass filters to prevent TVI?
I currently have a Drake TV-1000 in line but that allows RF up to 52mhz, and
actually above that because I have used it successfully on 52.525mhz for 6m
FM.  Today I borrowed a Kenwood LF-30A from a friend. I can't find too many
specs on it other than it has 90db of attenuation above 90mhz.  It didn't
make any difference compared to my Drake.  I was thinking that it might do
better since it should have a lower cutoff frequency.

I see that Drake also made a TV3300 filter that is rated at 80db above
41mhz.  And the ICE filters get good reviews on eham.net.  So, any opinions
as to what low pass filters work best?

73s John AA5JG
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