[NLRS] VHF low pass filters?

[Matt Arthur]

Hi Chris, That's a good one.
I had one like that in the nabor hood to.
They finally got rid of it. Think they got tired of me waking them up.
73 Matt ka0pqw----- Original Message ----- 
From: "Chris Elmquist" <chrise at pobox.com>
To: <nlrs at mailman.qth.net>
Sent: Wednesday, January 02, 2013 1:11 PM
Subject: Re: [NLRS] VHF low pass filters?


> 
> 
> I remember once getting into a neighbor's TV...  my garbled voice coming
> out the speakers...  when the TV was turned "off"!
> 
> They were a little freaked out.   I told them not to mess with me--
> they have no idea what I am capable of :-)
> 
> I didn't get any more complaints.
> 
> Chris N0JCF
> 
> 
> On Wednesday (01/02/2013 at 11:41AM -0600), tosca005 at umn.edu wrote:
> > 
> > 
> > I agree with the majority of the replies I have seen so far, which
> > suggest that it is unlikely you need a low pass filter on your 50
> > MHz transmitter, but rather the neighbor needs to either have a high
> > pass filter or a notch filter on his OTA TV system to overcome
> > swamping of his front end.
> > 
> > I had a similar situation with my next door neighbor, who was trying
> > to watch NFL football during the January VHF contest, and my 6M
> > transmissions got into his TV even though his TV was exclusively
> > connected to cable, not to an OTA antenna. Like your neighbor, mine
> > was extremely pleasant and cooperative, just looking for help rather
> > than looking for blame or to make trouble. At the time, I got a tiny
> > 50MHz notch filter that fit inside of a small barrel with male and
> > female F connectors on the ends. I inserted that into his cable
> > connection between the outdoor feed and the house input feed.
> > Problem was solved. I can't remember at the moment who made the darn
> > thing, but it was a very effective and reasonably-priced solution.
> > 
> > Here is a discussion I found with Google that is a little under a
> > year old, so hopefully it is still helpful:
> > http://mailman.pe1itr.com/pipermail/moon-net/2012-February/002935.html
> > 
> > It sounds like a similar product, and there is one for 50 MHz and
> > one for 144 MHz. Might do the trick if you can get one or both of
> > them inserted BEFORE the preamp.
> > 
> > 73 de W0JT/5
> > Still not making any RF to interfere with the neighbors yet.
> > 
> > 
> > On Jan 2 2013, kp hpjr wrote:
> > 
> > >Group,
> > >
> > A neighbor approached me asking if I was operating the other night.
> > He said that I had been interfering
> > with his over the air TV signal. He placed the time frames during
> > the MS rally and during this weekend Es opening.
> > >
> > I have only been on 6m as of late at times running up to 600w. His
> > home is about 1000' away from me. His setup is a new digital TV with
> > outdoor antenna fed with the typical radio shack type coax. His
> > antenna is basically looking my way.
> > >
> > >I'm needing some help with this. Are there filters I/he can use?
> > >
> > I'm well grounded and use very good hardware...Andrews connectors
> > and feedlines etc.
> > >
> > >Your input welcome.
> > >
> > >Kirk, N0KK
> > >
> > >BTW: 1st RFI complaint in 18 years.
> > 
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> -- 
> Chris Elmquist
> 
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