I was given an old antenna this weekend at a housewarming party at our new
lake house which is in the CEA "blue" zone for TV rerception.One guest said
it was a Yagi. It has 2 elliptical (about 60" by 4" shape) side pieces about
2 feet apart on about a 30" main strut.There are also a few 12" single tubes
along the strut.When placed in my attic and connected via cable I get
perfect Channel 13;good 6,8;fair 12,poor 32,38 and only a faint 4.With
rotation,I can get any of them,including 4
to move up to E-Good.Can I buy another antenna and use some type of cable
splitter or must I spring for the $70 RShack rotor? I am NOT using an
What is the RShack rotor? I assume this is a device that will turn the
antenna based on the channel selected?
Anyway, I find it interesting that the hig UHF channels are poor. Are these
channels broadcast from different locations? Here in DFW we have most if not
all the local channels broadcast from the same or similar location, and the
higher the number the better the reception. Somebody explained it to me from
a power and frequency perspective at one time, and I understood it for about
10 minutes before my poor brain gave up.
Two things now, since it is early in the morning and I am generally spewing
gibberish. First, go to http://www.terk.com/aloc.html and use this as a tool
to see how and what you should get for reception and what kind of antenna
should work best for you. It is a vendor site, but I found it informative
back when I was trying to work out the local channels dilemma. You can add
your address (or just zip code) to get some good info on reception in your
area. Second, I see no reason you cannot use two antennas, but I believe
your splitter would still be manual. I know there are diplexer's to merge
and split satellite and antenna feeds, but don't know about two antenna
feeds. However, once you spend all this money for another antenna and
splitters/diplexers, perhaps that 70 dollar rotor is not such a bad thing.
Please let us know how this works for you. I have a small low voltage and
structured wiring company in the Dallas area (shameless plug;
www.cmf-enterprises.com) and anything like this is a learning experience and
tool for me.
Not exactly, the control is wholly separate from the TV, so if you are
watching a channel in one direction, and wish to watch another channel
in another direction, you have to adjust the rotator control as well
as the TV channel. If you are a sharp nut, you could figure out a way
to adjust the rotor based on channels.
In the old days of television, people often had one antenna unit per channel
and switched between them, so switches certainly used to exist. I don't
know if they shared the same cable, I kind of doubt it. You say "buy
another antenna", which assumes you can get one which works as well as the
one you have now and only needs to be pointed in one other direction. Is it
true that you only need one other direction?
If so, then I can see advantages to getting a second antenna and a
switch--for one thing, I can imagine that you can't actually swing your
antenna 360 degrees in the attic, and if that is the case you would make a
mistake with the rotor sooner or later.
But you won't save a lot of money compared to $70 with the new antenna and
switch. In your situation, I would get a rotor if there was room to swing
If the transmitters are clustered into one, two, or three (or even four, five, or
six) locations you certainly can use separate antennas *with one pointed
for each cluster* and combine them. That eliminates the need for the rotor (and
rotor wiring) and will also let you watch different channels on different sets if
you so wish.
In years pre-cable when we had just a few channels, a Yagi was needed to pick
up, the UHF channels (those above Channel 13).
Most TV sets at that time had a separate terminal where the UHF antenna (read
Yagi) would be connected.
Long time ago.... Mid fifties.
I have found that antennas in attics do not receive as well as antennas
mounted outside on top of a roof.
Try for more antenna information.
http://www.kyes.com/antenna/antennadex.html --TV and FM Antenna Tips,
FAQ, Reception Help, Interference and Amplifier Guide
Use a coaxial splitter and a two 300 ohm balanced to 75ohm unbalanced
transformers (if needed) to combine two antennas.
Ghosting can be a problem if the two antennas are located in
different areas of the attic. The best location would be mount one
on top of the other with as much vertical separation as possible.
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