Specifications

M
SG-303 Antenna
w i t h
The SGC Building 13737 S.E. 26th Street, Bellevue, WA 98005 USA
Box 3526, Bellevue, WA 98009 USA 425-746-6310 or 1-800-259-7331
Fax: [phone] E-mail: [e-mail] Web site: http://www.sgcworld.com
SGC Couplers
The SG-303, a high performance mobile antenna, is designed
and built to operate in rough terrain and extreme climactic
conditions. It has a lifetime warranty.
The SG-303 antenna is a light-weight and low-cost mobile
antenna for operation between 1.8 and 30 MHz. Nine feet in
length overall, it consists of two sections of helically wound
whip, mounted on a sturdy professional weatherproof rubber
spring. Mounts on an adjustable ratchet mechanism:
• the base adjusts for the best attachment to the vehicle.
• the antenna ratchet permits orienting the whip from
vertical to horizontal.
The SG-303 stands up to the wind loading at highway speeds,
as well as to rain, ice, and the occasional tree branch.
The SGC line of antenna couplers —the famous SGC
“Smartuners”—packed into a sturdy case, mount on the
vehicle as close as possible to the antenna lead-through. Each
one gives almost any HF-SSB a major boost in range and
c l a r i t y. The Smartuner “ intelligently” tunes any length
antenna. No preliminary tuning or adjustment is required, and
the Smartuner operates with any HF transceiver in the 1.6—
30 MHz range and with output power from 3 to 500 watts.
• Heavy duty rub-
ber encapsulated
spring mount
• Heavy duty whip
antenna
• Adjustable 4-way
ratchets
• Waterproof for
all weather
• Built-in test
equipment indi-
cator
• 1.6 to 30 MHz
range
• 3 to 500 watts
(depending on model)
SG-303
Smartuners
Be sure to see SGC's revolutionary mobile QMS
system for mounting antenna and
coupler outside the vehicle.
®