Specifications

SMARTUNER MANUAL 25
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
E. Under the roof overhang, all
kinds of wire antennas may be
installed.
F. All types of antennas may be
hidden inside the roof of a building
that uses non-metallic roofing
materials.
G. The downspout, rain gutter
antenna works well if the pipin
g
and
gutter are aluminum. You may wish
to assure low electrical resistance
connections between gutter sections
with hose clamps or plumber’s tape.
Coupler
F
E
G
Coupler
Coupler
4.10 Emergency Antennas
There are a couple of antennas which don't fit into any category in particular, but which
should be mentioned because when used with a Smartuner, they will deliver
spectacular results.
4.10.1 Kite Antenna
Figure 4.10.1 Kite Antenna
Note: The counterpoise may be underwater if installed on a beach or from
a vessel at sea. If an underwater counterpoise is used, tuning may change
with tide changes in shallow waters. This type of antenna has been run for
hours in tropical trade winds with excellent results.
Coupler
String
Jumper
30 to 70 feet of wire
Box, delta, or conventional kite
100 feet of
string
30 to 70 feet of wire
ground conductor (counterpoise)
Use string to post for strain relief—do not tie
kite wie to coupler without strain relief
Post or stake
This is our recommended antenna to be carried aboard all types of vessels. This is
because when a wind strong enough to damage a boat occurs, it is easy to fly a kite and
this may lift fifty to one hundred feet of antenna wire. For good emergency
communications, you will only need 30-70 feet of antenna and a strongly built (Mylar or
nylon) kite.