5
5..7
7
T
Ta
ac
cttiic
ca
all A
An
ntte
en
nn
na
a S
Su
up
pp
po
or
rtts
s
Except for a barren desert, just about all landscapes have structures (natural
and man made) which can be used for antenna supports. All it usually takes is
several hundred feet of rope and some creativity. Here are some examples to
consider. If you wonder which structure would work best remember the one
with the greatest height and greatest distance from grounded metal will gen-
erally give the best performance.
1.
Natural rock formations such as cliffs and bluffs.
2.
Tall trees.
3.
Water towers.
4.
Church spires and minarets of mosques.
5.
Strung between rooftops of buildings.
6.
Sign posts such as for banks and gasoline stations.
7.
Telephone (not power) poles. There's no line noise on telephone poles.
8.
Railroad trestles
9.
Highway structures - signs, overpasses and bridges.
10.
Flag poles at public buildings, schools and hospitals.
5
5..8
8
T
Ta
ac
cttiic
ca
all G
Gr
ro
ou
un
nd
ds
s a
an
nd
d C
Co
ou
un
ntte
er
rp
po
oiis
se
es
s
Just as antenna opportunities abound, so do ground and counterpoise opportu-
nities to the professional eye. Some of our favorite examples which corre-
spond to the antennas above include:
1.
Cross country water and petroleum transmission pipes.
(As it passes under a bluff?)
2.
Long steel cables along a mountain highway. (With nearby trees?)
3.
Chain link fencing. (Around the water tower?)
4.
Metal lawn sprinkler piping. (In the church yard?)
5.
Fire department stand pipes. ( Required in most big city building codes!)
6.
Underground metal petroleum storage tanks. (At the gasoline station?)
33
© 1998 SGC Inc
SG-230 Manual
SGC Inc. SGC Building, 13737 S.E. 26th St. Bellevue, WA 98005 USA
P.O. Box 3526, 98009 Fax: 425-746-6384 Tel: 425- 746-6310 or 1-800-259 7331
E-mail: [email protected] Web site: http://www.sgcworld.com