In the late 80s I worked for a paging company in Northern California. We had a
number of Statewide paging systems running and one of them was on 35.22MHZ
(called P1). I was the Director of Operations at the time and we received an
interference complaint from a person in Stockton that our signal was getting
into their TV. This was unheard of because we'd never had any prior reports. My
only tech (small company) was on vacation to I went and visited this
complainant. Sure enough, it was our paging signal getting in to the TV.
I asked the person if I could take their TV apart and see if there was
something wrong inside. He allowed it and I found the coaxial cable from the
tuner (IF out) was terminated at the motherboard with an RCA connector. The
male RCA connector on the coax was pushed in just far enough that the center
pin was holding it in but the shield was not connected at all. I pushed the RCA
connector all the way in and the interference stopped. I put the TV back
together and never heard from him again.
Would you let a stranger come into your house and take your TV apart?
True story.
Danny
K5CG
----- Original Message -----
From: "K9MA" <k9ma@sdellington.us>
To: "john nistico" <electric911inc@hotmail.com>, "Wayne Kline"
<w3ea@hotmail.com>
Cc: "towertalk" <towertalk@contesting.com>, "Ed Sawyer" <sawyered@earthlink.net>
Sent: Monday, November 18, 2019 9:31:03 PM
Subject: Re: [TowerTalk] Weekend from hell
Ask your neighbors to note the time when these problems occur, then
compare with your log. There may be no correlation at all. If the times
don't correlate, it definitely has nothing to do with you. That should
be the first test.
Note, however, than neither an alarm system nor a microwave oven are
receivers for any frequency your transmitter could possibly be
generating on 80. (OK, may the alarm system, but it's highly unlikely.
Definitely not the microwave.) Technically, you have no responsibility
at all. However, in the interest of neighbor relations, it's always best
to try to help solve the problem. If the neighbors are cooperative, all
it will cost you is a few ferrite cores and a little time.
Some years ago, a neighbor's garage door mysteriously was opening
itself. He asked me about it, and I checked my log, which showed no
operation. He was satisfied with that, and got a new garage door opener.
Never heard from him again. Not all neighbors are so reasonable.
RF susceptibility used to be much more of a problem. Now most of the RFI
is going the other direction. I had to buy a neighbor a new TV a couple
years ago, in the interest of neighbor relations. So it goes.
73,
Scott K9MA
On 11/18/2019 19:25, john nistico wrote:
> Ok so my neighbor claims I am coming through the speaker of their
> alarm system. The other neighbor claims the microvave. I am running a
> Yaesu 5000 150 watts to an inverted v with the apex at 85 feet fed
> with hardline. This only happens when I am on 80 meters, 3705 is where
> I was when the first call came in. So I can't figure it out nothing in
> my house or any other houses is effected.
>
> John
> NY6DX
>
>
> *John J. Nistico*
> *911 Electric Inc.*
> *516.325-8993*
>
> ------------------------------------------------------------------------
> *From:* TowerTalk <towertalk-bounces@contesting.com> on behalf of K9MA
> <k9ma@sdellington.us>
> *Sent:* Monday, November 18, 2019 8:05 PM
> *To:* Wayne Kline <w3ea@hotmail.com>
> *Cc:* TowerTalk@contesting.com <towertalk@contesting.com>; Ed Sawyer
> <sawyered@earthlink.net>
> *Subject:* Re: [TowerTalk] Weekend from hell
> Great, Wayne! That’s exactly how to turn a potentially hostile
> neighbor into a grateful one.
>
> 73,
>
> Scott K9MA
>
> ----------
>
> Scott Ellington
>
> --- via iPad
>
> > On Nov 18, 2019, at 5:39 PM, Wayne Kline <w3ea@hotmail.com> wrote:
> >
> > Ed, This assumption that you antenna caused interference is not
> an unsual phenominum. I had an instance where a neighbor on the next
> road over came to our home claiming the antennas 9 Yagi antennas on
> 4 towers had captured all the TV signals in our area and her TV
> signal was almost just snow because of it. I and my wife listened to
> her complaint and I tried unsuccessfully to explain A: TV
> signals are not attracted to my antennas like a magnet B: the TV
> broadcast signals are not near the current commercial broadcast
> frequency’s ( to no avail ) I offered to come over to there home and
> examine there installation.
> >
> > Apon my arrival it was at first asseratained there home was not
> using over the air broadcast TV BUT Cable TV !!!!
> > In inspection in the basement the owner and son tried to become
> cable TV distrabution engineeres. Unseccesfully IMHO
> > After removing not 3 but 4 3 way spliters and 8 uncompleted un
> crimped connectors . After a trip to my home and returning with the
> proper tools I reconfigured and MESS and installed the un fastened
> ground wire at the entrance block.. WOW and all read SEVEN TV’s
> and one gaming console ??
> > Now had a acceptable siginal
> >
> > This happened during the height of the 2nd Golf War and her husband
> was in the service and in the Theater . As a VET prompted me to go
> above and beyond
> >
> > GO figure
> >
> > Wayne ,
> > Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows 10
> >
> > ________________________________
> > From: TowerTalk <towertalk-bounces@contesting.com> on behalf of WW3S
> <ww3s@zoominternet.net>
> > Sent: Monday, November 18, 2019 6:03:55 PM
> > To: Ed Sawyer <sawyered@earthlink.net>
> > Cc: TowerTalk@contesting.com <TowerTalk@contesting.com>
> > Subject: Re: [TowerTalk] Weekend from hell
> >
> > LOL....I had a similar instance....my beam is on a hazer on a 50 ft
> tower..I could crank it up, and almost immediately get a call from my
> one neighbor about interference to his tv, even though I wasn’t on the
> air.....yet I could operate with it cranked down ( think closer to his
> house !) and never hear a peep from him....
> >
> > Sent from my iPad
> >
> >> On Nov 18, 2019, at 5:50 PM, Ed Sawyer <sawyered@earthlink.net> wrote:
> >>
> >> Don't assume you caused the interference. Twice in the past year I
> have had
> >> neighbors (over 2000 ft away from my antennas) claim I was
> interfering with
> >> their TV. Both times I was out of the country...
> >>
> >>
> >>
> >> Ed N1UR
> >>
> >> _______________________________________________
> >>
> >>
> >>
Scott K9MA
k9ma@sdellington.us
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