SG-303/307 WHIP ANTENNA MANUAL
© SGC 2007
NOT SUPPLIED AND MAY BE REQUIRED FOR INSTALLATION:
Additional braided
¾
inch wide ground straps, 3 inch copper foil (3 mil thickness), or electrical
stranded wire, gauge 12 or larger of at least 20 feet in length can be used to create an RF
grounding system within the vehicle. In a vehicle made of fiberglass or non-metallic alloys, at least
3 such wires should be connected between the coupler ground and any metallic structures to create
a minimum RF Ground for efficient operation.
VEHICLE INSTALLATION
Select a protected area in the vehicle or boat to allow proper mechanical installation of the coupler.
The coupler should be within 2 feet of the base of the antenna. The SG-303/307 must be mounted
outside in an unobstructed area and at the highest point possible on the vehicle. Recommended
areas are as high as possible and as far from the engine compartment as possible. Typical locations
are shown below:
Proper Whip Installations
Roof Mounting
High on the
Rear Side
Panel
High on the
rear or trunk