34
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..9
9
T
TA
AC
CT
TIIC
CA
AL
L 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?)
7.
Metal fencing of any type. (A barbed wire fence along a pasture under
telephone pole?)
8.
100 feet of wire thrown in a river or sea. (Under a trestle?)
9.
Metal drain culverts. (Along a highway?)
10.
4-5 cars parked with their metal bumpers touching or a sheet metal
roof. (Hospital or public building.)
As you can see from this list, there are an almost limitless number of options
available for the trained professional to install a high performance antenna
system with only a small amount of wire and an SG-235 Smartuner.
6
6..0
0
G
Ge
en
ne
er
ra
all N
No
otte
es
s o
on
n A
An
ntte
en
nn
na
as
s a
an
nd
d C
Co
ou
up
plle
er
rs
s
1.
The longer the antenna, the better the antenna performance. By
doubling the length of the antenna, an improvement of 3 - 6 dB can be
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
© 1998 SGC Inc
SG-235 Manual