They work for minor stuff, but if it's bad, they won't help that much, I
don't know how you're setup, but what I've found, RFI problems like that are
usually caused by antenna being too close to the building or lower quality
feedlines like RG-58 Coax. Even ladder line too close to the building can do
that, but if you're going through everything, likely you need to move or
change something, I've been there and it took me a lot of money, trial and
error to get it. Now I bother nothing in this house other than my computer
speakers when it's wet out on 1 antenna, but I know how to fix that too I
think I just need the ambition to do it.
----- Original Message -----
From: "Kevin Kwan" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, October 31, 2005 8:37 PM
Subject: Re: My Favorite TVI Fight!


Do lowpast filters really work or is it just another thing to frivolously
spend your money on? I'm thinking of buying some since I have intermittent
tvi problems with just about everything and I only run like 75 wots max for
my hf which will change after I finish trying out a few of these sloper
additions.
----- Original Message -----
From: "Jeff Kenyon" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Monday, October 31, 2005 8:02 PM
Subject: Re: My Favorite TVI Fight!


Hi Paul, what a headache!  I have heard a lot about that, and some of the
TVI, is simply TV DX in those high sunspot years.





On Mon, 31 Oct 2005, Paul Bolduc wrote:

> Good evening to the list,
>
> In the late 1980's I asked the town building inspector for the proper
> paperwork for putting up a 50 to 75 ft. tower.  I showed him the plans and
> there was no problem.  This area is very rural and there were only three
> houses on the road when we first moved in.  I was OK with the building
> permit because it would not fall on anybody else's proprty and so here's
the
> rest of the story.
>
> I purchased a 75 ft. crank up tower and brought the whole thing home with
> two trips to get every part on to the back of my pickup.
> I dug the hole and prepared the base for pouring cement.  The three weeks
of
> letting the cement cure was a trying time because it was ready to go up
and
> I was anxious!
>
> The day finally arrived when we could man-handle the heavy base on to the
> bolts or threaded rods coming up through the cement and plumbed up the
whole
> thing.  We then used the winch and cable to lift the collapsed tower on to
> it's mount.  We got it most of the way into position, but the rest was a
bit
> too much for only two people with one of us not seeing to line up the
pivot
> point!  We tied it off so no wind or movement would knock it over and quit
> for the day.
>
> I had not finished wiping the sweat off my brow when the first TVI call
came
> in!  These were our nice neighbors and after I had working antennas on the
> tower I invited them or all three of them over to watch TV here while I
> operated.  I was told that I must do some sort of a trick to cause
> interference only on their TV's.  The man of the house came and saw TV on
my
> screen and heard me talking to another station.  He understood and I
> mentioned that there was a way to eliminate houses and that was to turn
off
> the main breaker to each house while the others watched to see if the TV
> cleared up.  He agreed to do that.  The next time they had interference he
> called and I said OK and asked my wife to flip the main breaker.  All the
> battery backups on the alarms started going off and it was a headache.  He
> said that they still had it and I asked him to turn off his power and have
> the other neighbor watch.  His wife said No because they were not the
cause
> of the interference.  I called the FCC and asked what I could do and they
> mailed me a pamphlet on this topic which basically said the problem was
that
> of the TV owner and very unlikely that it was the Ham operator.
>
> I couldn't wait to deliver this package.
>
> We could expect a call about twice per week with me causing TVI, even when
I
> was in Florida and the shack was unplugged!  I was also the cause of their
> TV receiving two stations on the same channel when most people were
outdoors
> observing The Northern Lights!  I probably also caused the Aurora
Borealis!
>
> The best one yet is when the lady of the house and primary instigator had
to
> come over and complain during a torrential downpour just to find us at
home
> doing something not involving the radio.  She was soaking wet and refused
to
> come into the house to check out my equipment.  They finally moved and
> things have been quiet ever since.
>
> The new neighbors were quite upset with the TV reception so they replaced
> all the old spliced twin lead and put up a new antenna and they are quite
> happy and now satellite has come to Royalston, no cable yet and we're
> thankful we have electricity!
>
> Have a great day,
>
> Paul Bolduc
>
> Amateur Radio Operator: WR1X
> Email: [log in to unmask]
>
> Located in the only town named Royalston in North America and maybe even
the
> world!
> Royalston is located in Massachusetts, the home of the
> World Champion New England Patriots!
>