SG-231 MANUAL
SGC Inc. SGC Building, 13737 S.E. 26th St. Bellevue, WA. 98005 USA
© 11/00 SGC, Inc.
P.O. Box 3526, 98009 Fax: (425) 746-6384 Tel: (425) 746-6310
E-Mail: [email protected] Website: www.sgcworld.com
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A. If a flagpole is made of PVC pipe,
it is easy to tape a large gauge wire
to the inside of the pipe and use a
good counterpoise. Typical flagpoles
are 25 to 35 feet in height and offer
excellent performance on all bands.
At least three ground radials
longer than the flag pole
Coupler
B. Masonry chimneys are visually
“busy.” You can run a #10 copper
wire parallel to the chimney with
little risk of detection. Some short
standoffs and you have a support for
a vertical dipole type antenna.
C. Along the edge of the roof, held
off by some inexpensive TV twin-
lead standoffs, you can hide 25 to 40
feet of antenna on virtually any
house.
D. The Inverted “L” antenna may
work slightly better if it is installed
clear of a building, but for covert
operations, this type of installation is
a favorite. If the feed-point is at
ground level adjacent to an iron or
copper water line entering the house
that will provide an excellent
counterpoise.
B
C
D
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