TIP: Click on subject to list as thread! ANSI
echo: scanners
to: URBAN LARSSON
from: BRUCE CLARK
date: 1996-10-11 15:26:00
subject: Antenna Mounting

-=> Quoting Urban Larsson to Bruce Clark <=-
 BC> As long as the antenna are not close to being tuned to the 
 BC> same wavelegth they don't interfer. At least before and 
 BC> after standing wave checks have led me to believe this. 
 UL> I'm not saying that you're totaly wrong about the interference,
 UL> but I think that the standing wavecheck is not the correct 
 UL> technique to measure possible intererence from other antennas
 UL> or objects. The SWR check will ONLY tell you how well the
 UL> antenna is matched to the IMPEDANCE of the connecting cable
 UL> and equipment.
 UL> Imagine yourself sitting in a Farradys cage with your perfectly
 UL> matched antenna. You will get perfect readings from the SWR meter
 UL> but will still get no reception from the outside world. I suggest
 UL> that you check the fieldstrenght from a staionary source, like 
 UL> a pager transmitter, and make reference measurements when you add
 UL> several other antennas on the your car. Then you will see how much,
 UL> or little, interferance you'll get from directing/deflecting adjacent
 UL> metallic objects.                                         Ubbe.
That I'll go along with!! But my first concern has always 
been not to dammage the finals on the transmitter. Where 
space is limited, I'll have to put up with the other 
interference. 
 
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