correctly. The losses are dissipated through heat or to ground.
¥ A coupler installed at the antenna eliminates these losses by
providing a proper match of the antenna to the feed line. The
Smartuner is a true antenna coupler.
There are several key points which we will emphasize throughout this man-
ual which will result in the best possible operation of your Smartuner.
These include:
¥ The coupler must be located at the
antenna.
¥ No coax may be connected to the coupler output.
¥ Make sure the coupler has a clean 12 VDC power supply.
¥ The ground system must always be
larger than the antenna.
¥ The antenna wire should be of the largest gauge practical.
¥ Capacitance at the coupler output must be minimal.
¥ I n s u r e t h e a n t e n n a i s o f s u f f i c i e n t l e n g t h f o r y o u r l o w e s t
operating frequency.
Strictly observing these basic rules will insure good operations under the
widest range of conditions.
This manual should be thoroughly studied if you plan to have the best possi-
ble signal and most reliable operation of your HF system.
1
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3
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The SG-230 is a general purpose coupler which can be operated with any
type of radio and almost any type of antenna configuration. The coupler
network configuration is of an
¹
or L type; it automatically selects appropri-
9
© 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
PLEASE MAKE NOTE OF THE FOLLOWING INFORMATION FOR YOUR RECORDS:
Date unit was Purchased: _______/_______/_______
Dealer from whom purchased: ___________________________
Date installed: _______/_______/_______
Type of antenna used: ___________________________________