I bought a used rooftop tv antenna at a garage sale so there are no
instructions. I know how to mount it and connect the coax, but I do
not recall which end points toward the tv station transmitter.
I know the UHF elements are the smaller ones and the VHF are the
larger ones. But which end goes toward the station? Here is a crude
You'd think there would be a diagram on the web, but I sure can not
find one. They should mark it right on the antenna but they dont.
The more elements it has the more 'pointy' or directional the antenna
In other words, using a multi element antenna, if the antenna is
pointed directly at one station, another station, off say 30 degrees
to one side in direction, may not be received at all
If signals are weak an antenna with more elements generally has more
'gain' (From the ONE desired direction!).
Definitely also true.
But you may get someone who has no technical background putting up an
antenna which does not work for the several stations (in different
directions from their particular location) that they wish to receive.
And then gets into a song and dance about how it is the same antenna
that works OK for his brother in law (who lives in a different
location of course!).
OR "The salesman 'said' this was the best one for this
area ................." and so on ....... !
All without reference to any understanding about basic technical
Also there will always be the people who achieve perfectly
satisfactory TV reception with a broken off coat hanger jammed in top
of the set in place of the uni-pole antenna that broke off ten years
off when they were moving house. Provided that is the cat does not
perch on top of the sofa; just 'there'.
"Hon: Shoo the cat off the sofa will you? I want to watch this guy
pitch .....! "
We ran into a situation once, long before the advent of cable TV here,
whereby the owner used to pour hot water over his antenna connections
to wash off the sea salt spray. It worked!
Another guy in same community got best signal if he pointed his
antenna off line, it is still my opinion that by doing so with his
particular antenna he was avoiding a strong second signal (in favour
of the direct signal) reflected from the metal cladding of the local
fish processing plant!
Ah yes; but reflected FM and TV signals was how the British discovered
radar before WWII! Ever notice how a TV picture sometimes goes 'all-
wavery' if/when a plane flies over?
As previous posters have said indicated it IS a combination of
technology and local conditions. But starting with 'pointy' end
towards the TV station is best way to start.
LOL! Ya beat me to it! Until I saw folks taking this seriously I was kinda
thinking it was a joke post. Must be a 'man thing' there ;-)
Real method, put up antenna but don't bolt tight yet. Turn antenna bit bit
by bit until the best location is determined. Tighten bolts so it stays
Walkies don't use up your cell minutes.
Living in a trailer, my TV is right next to the antenna
mast. I turn the TV around so it faces the window. then I
can rotate the antenna and watch the screen at the same
If I wasn't Mormon, I could also drink a beer, fart, smoke a
cigarette, and pee on the skirting at the same time. Redneck
Huh? Height gain is real and exist for all frequencies. The only
time excess height will work against you is when your feed line losses
outweigh you height gain. You'll have to go very high for this to
happen on TV frequencies. There is no sweet spot unless you
are somehow physically obstructed.
From the days when I was active in telecommunications engineering,
I was trying to capture long distance TV relay signal, guess what?
I could only get a decent stable signal at certain height on the tower.
Lower or higher the signal disappeared. Had numerous instances like this
on VHF, UHF, troposcatter, microwave repeater installations. Retired in
'96 after spending my whole life in the field and been a ham since my
boyhood as well.
Class of '60, EE.
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