Specifications
HF Frequency Ranges: 3.5 to 60MHz
Maximum Output
Power: 150 watts PEP voice or
CW
Dual Frequency
Resonance: at 8 and 25 MHz
Radiation: Omnidirectional
Mount: 90º stainless steel base
mount rotator and
threaded male stud 3/8-24
Base: Heavy duty stainless
steel base spring with
rubber boot, Supplied
with high voltage isolated
mounting base size
10x7x.5 inches
Feed-through: high voltage wall feed-
through bushing (hole =
.890 in.)
Cable: 3ft. high voltage wire,
one end terminated by a
round lug
Catalog Number: 55-28
Antenna must be used with an antenna coupler such as the SG-231
Frequency Range: 1 to 60MHz
Power Input
Range: 3 to 100 watts (PEP)
Input Impedence
Range: 45 to 55ohms
VSWR: Typical - less than 1.4:1
DC Input
Requirement: +13.6VDC
Input Current: Average-.9 amps
Random Set
Times: Typical- less than
4 seconds
Recurrent Set
Times: Typical-less than 10
milliseconds
Non-volatile Memory
Addresses: 170 BINS
Size Overall: 11.5D x 9.5W x 1.7H
29.2D x 24.1W x
4.32 H centimeters
Weight: 3.8 pounds (1.6 kilos)
Case Construction: Plastic ABS weatherproof
case
Catalog Number: 54-17
SGC, Inc., P.O. Box 3526 , Bellevue, WA 98009 USA
Tel: 425-746-6310 Fax: 425-746-6384
E-mail: sgc@sgcworld.com Web site: http://www.sgcworld.com
®
No Compromise Communications
Mounting coupler and antenna outside the vehicle reduces
engine noise, interference and eliminates feed loss. It can be
quickly installed and easily moved from vehicle to vehicle. No
drilling or vehicle modifications are required. Industrial suction
cups secure the QMS-7 to the vehicle, without damaging
the finish, and high strength straps and buckles complete the
job and give structural integrity. (Cat. #55-49)
Q M S
(Universal Quick Mount HF Antenna System)
SG-231 Smartuner
Use the SG-231 to automatically tune just about any antenna
(7 feet minimum) to HF/VHF transceivers from 1 to 60 MHz.
It automatically evaluates and switches over
4 million possible combina-
tions of input
c a p a c i t a n c e ,
o u t p u t
c a p a c i t a n c e ,
and series
inductance to
ensure a perfect
match between the
transceiver and the
antenna. The SG-231 Smartuner remembers the chosen frequency
and tuning values and will automatically reselect these values—in
less than 10 ms—each time you transmit on that frequency. It oper-
ates with any HF and VHF transceiver. (Cat. #54-17)
SG-307 Specifications
SG-231 Specifications
1-800-259-7331