Specifications

SG-231 MANUAL
SGC Inc. SGC Building, 13737 S.E. 26th St. Bellevue, WA. 98005 USA
© 11/00 SGC, Inc. P.O. Box 3526, 98009 Fax: [phone] Tel: [phone]
E-Mail: [e-mail] Website: www.sgcworld.com
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separate power supply mounted at the antenna coupler location, please be advised that
SGC does not provide technical support in this area
1.8 Upgrade Sequence
The current version of the SG-231 coupler will have a revision letter located on the
printed circuit board. To continue moving forward in coupler design, the SG-231 may
be revised as needed. Later revisions of the coupler will be denoted by the subsequent
letters of the alphabet.
SGC will continue making incremental improvements in the Smartuner product. When
you buy your product today and a new feature is added, you can always upgrade for
modest fees to the latest version of the unit. If you would like to upgrade to the latest
version of the unit, contact SGC because special discounts are always provided to our
valued customers.
2.0 Specifications
HF Frequency Range: 1 to 60 MHz
Power Input Range 3 to 100 watts (PEP) — 50 watts max. on CW
Input Impedance Range: 45 to 55 ohms
VSWR: (Typical) Typically less than 1.4:1
DC Input Requirement: +13.8 VDC
DC Operating Range: +10.5 to 15 VDC
Input Current: Average: .9 amps
Random set time: Typical: less than 2 seconds
Recurrent set time: Typical: less than 10 milliseconds
Antenna Length: Minimum length of 7 ft. —3.5 to 60 MHz
Minimum length of 23 ft. —1 to 60 MHz
Installation: Any position
Operating Temperature: -35° to +70°C
Size: 9 x 9 x 2 inches
Weight 3 pounds
Case Construction: ABS plastic cover on an anodized aluminum base
Control Cable: Shielded 9 conductor 24 AWG with 8 pin female
Mic connector on one end
2.1 Accessories
SGC Part Number 54-67 25 foot Extension cable
SGC Part number 55-68 50 foot Extension cable
2.2 Recommended Antennas
SG-105 Marine and Base station antenna. This is a 60-foot end fed long wire type antenna.
SGC Part Number 55-10.