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echo: tech
to: BEN RITCHEY
from: TOM WALKER
date: 2005-07-08 08:28:00
subject: Antenna

BR>Oh yeah, the antenna  I just ran the entire length of #12
copper wire I h
BR>until I ran out (almost out of roof, too), which gives me a 1.5' horizontal
BR>(thru the wall), a 5.5' vertical (high as I can go) then about 10 feet
BR>horizontal. Works great, so thanks for *ALL* the ideas.

BR>I'm guessing the horizontal span isn't doing much, though, as the original
BR>antenna is vertical . BTW, is there a way to tune the
antenna, or do I ne
BR>to? I have a Field Strength/SWR tester from Radio shack I never used, if nee
BR>(?). At one time I was going to play with short range (100') transmit/receiv
BR>but the transmitter kit never worked right. :(

While the Origional signal for hte Transmitter might start out Verticaly
polarized at VHF/UHF frequencies they ger rellected arroind a lot
between the transmitter any yuor house so it is hard to tell what it is
when it reaches your house. But the way you did it fairly covers
whatever it is.
Adn as for the Tuning it may or may not make any differnce as Atenna
tuning and even impedence matching matrer most in Transmitting.
Recieving is very tolerent of mis-matches.
I know soem are agast at the fact that for outside Recieve only antennas
I perfer Quad Shielded 75 Ohm Coaxial Cable. And that is for the Much
Lower cable losses at VHF/UHF frequencies than the typicaly used RG-58
or even RG-8 subjects one to.
I keep belig told that i have a 33% mismatch. BUT it donen't matter as
the Lower Loss cable gives me MORE signal then what "MAY" be lost by the
Mismatch.

Of course this applies to Radios that have a Coaxal External antenna
jack. Typicaly a BNC but some older radios used the Motorola jack.
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