TIP: Click on subject to list as thread! ANSI
echo: scanners
to: ALEX DRAPER
from: RALPH MOWERY
date: 1996-11-20 20:21:00
subject: Antenna installations

AD>   Thanks for the reply Chris...  If i put 4 dipoles around the mast
AD>   at 90 degree placement,  this would give me 3db and 8 dipoles
AD>   would give me 6db circular pattern?  Should the dipoles be 1/4 wave
AD>   from the mast?  Also, do you know how they couple these dipoles to
AD>   one feedline?
Four antennas would give 6 db of gain in all directions and 8 would give
you 9 db of gain over one dipole if there is no loss in the system.  You
will get somewhat lower gain than this but not much.
 AD>   I've heard stories about lightning coming down the coax even when
 AD>   the coax were disconnected from the radio. A large sparks would
 AD>   leave the connector to say a grounded wall outlet.  Could this be
 AD>   true or just an old CB/Ham radio myth?
Lightining can do all kind of starange things.  I had an antenna that
was not gounded and had the coax unhooked and laying the room during a
storm.  On two differanat occasions a near by flash of lightning caused
enough electricity to run down the coax and light up the room for a
split second.
--- GEcho 1.20/Pro
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* Origin: Borderline! BBS Concord, N.C. (1:379/37)

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