Specifications

SMARTUNER MANUAL 24
SGC Inc. SGC Building, 13737 S.E. 26th St. Bellevue, WA. 98005 USA
© Nov2000 SGC, Inc. P.O. Box 3526, 98009 Fax: [phone] Tel: [phone]
E-Mail: [e-mail] Web Site: www.sgcworld.com
In a typical residential building, covert antennas have been used successfully for
intercontinental communications. The antennas used include both groundless loop
type antennas and those that require a counterpoise (ground).
A. If a fla
g
pole is made of PVC pipe,
it is easy to tape a lar
g
e
g
au
g
e wire
to the inside of the pipe and use a
g
ood counterpoise. T
y
pical fla
g
poles
are 25 to 35 feet in hei
g
ht and offer
excellent performance on all bands.
At least three ground radials
longer than the flag pole
Coupler
B. Masonr
y
chimne
y
s are visuall
y
“bus
y
.” You can run a #10 copper
wire parallel to the chimne
y
with
little risk of detection. Some short
standoffs and
y
ou 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 t
y
pe of installation is
a favorite. If the feed-point is at
ground level adjacent to an iron or
copper water line enterin
g
the house
that could provide an excellent
counterpoise but it is not
recommended as radials. Ground
wire will always insure proper and
better grounding.
B
C
D
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