[Lowfer] Active Whips and Rubber Sheets

Ashlock,William [email protected]
Thu, 31 Jan 2002 16:05:41 -0500


Les,

I would think your TX antenna will feed into the E-probe if it's that close.
This "feed" may contain noise from the house. You may be able to
short-circuit, or ground, the TX antenna, since it wouldn't be in use at the
time, to reduce this effect. Don't like the front yard tree situation with
the closeness of the power line, either. Back to the RX loops? How about an
new mast just for the E-probe away from the TX antenna, house, power, kids,
dogs, swimming pool.....? 

Bill

PS: Not sure I get the rubber sheet thing. Am I missing something HOT?  

In my case, the front yard, near the house and powerlines are the only
tall trees left on the property. The tallest one is also at about the 40 
foot level.

The back yard is free of any trees over about 8 feet tall. The tallest point
in the back are the two masts that support the flattop. One of these
masts is also attached to the house (and it's noise). While
the other one is 70 feet away. I just assumed that mast would
be the best spot.

I do like the idea of just throwing a rope over the highest tree in the 
front yard
and pulling the active whip up there. But that tree is right above the 
electrical
lead in to the house and only about 20 feet away from the neighborhood 
power lines.
What do you think?

73,

Les


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