Specifications

SMARTUNER MANUAL 27
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]
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Metal lawn sprinkler piping (e.g., in a church yard)
Fire department standpipes (required in most big city building codes)
Underground metal petroleum storage tanks (e.g., at a gasoline station)
Metal fencing of any type (e.g., a barbed wire fence along a pasture or
under telephone pole)
One hundred feet of wire thrown into a river or sea (e.g., under a
trestle)
Metal drain culverts (e.g., along a highway)
Four to five cars parked with their metal bumpers touching
A sheet metal roof (e.g., hospital or public building)
As you can see from this list, there are an almost limitless number of options available
to install a high performance antenna system with only a small amount of wire and a
SMARTUNER.
4.11 FIVE GOLDEN RULES OF HF INSTALLATION
These rules apply to all types of stations, including base, mobile, airborne and marine.
They are very important for planning and installing your HF system if you want to
achieve good communications.
1. Install transceiver as close to your operation site and to the power supply system
as possible (whether it is an external power supply or battery system).
2. The antenna must be installed in an open space and as far as possible from your
operating point. As an example, on a sailboat, use the backstay as the antenna,
since it is the farthest point away from the rest of the vessel.
3. The antenna coupler must be installed at the base of the antenna.
4. Always create your own ground with radial wire or copper straps. They are the
only ones that will guarantee a solid and proper ground system.
5. All cables
- power supply, control or coaxial - must always be as short as possible
and/or necessary. Any excess cable should be shortened to the proper length
-
never coiled.
Following these rules will minimize marginal installations and problem sources such as
RF feedback in the radio, power supply or cables and "hot" or RF burning microphones.
If all 5 above points are followed during the design and installation of your HF system,
the operator can expect top performance.