S G - 237 S mart un er ™ M anual
SGC, 13737 SE 26
th
Street Bellevue, WA 98005 USA • Ph: 425-746-6310, Fx: 425-746-6384, Email: sgc@sgcworld.com
www.sgcworld.com
SGC RESERVES THE RIGHT TO CHANGE SPECIFICATIONS WITHOUT NOTICE
Copyright SGC 2008
Insulated Backstay: The coupler must be placed as close as possible to the base of the backstay
antenna. Connect the RF ground terminal to all the metal parts or structure of the boat.
Triangular Loop Antenna: This antenna for sailboats is designed to operate in a groundless
environment and still provide high performance. This type of installation will require only one
insulation point on the bottom backstay and an electrical connection on top of the mast and the
stay. The grounded side of the coupler should be connected to the bottom of the mast. (See
above)
Delta Loop Antennas: These are ideally suited to long range communications due to their low
angle. This configuration is best for communications ranging from 500 to 5000 miles in the HF
frequency range of 4 to 22 MHz. Noise rejection is excellent. Because the antenna system is not
connected to a ground, noise rejection is enhanced.
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