SGC 230 Smartuner Remote Antenna Tuner, 200W, 160-10M ATU

SGC 230 Smartuner Remote Antenna Tuner, 200W, 160-10M ATU


Greyline Performance is pleased to offer SGC Smartuner HF ATU remote tuners.

SGC is Made in the USA, Smart, Strong, and Elegant. Truly high-end and rugged. The robust tuning range is worth a look and they are waterproof HF ATU's as well.

Tunes a mobile 8' whip from 160/80-10M.

Very popular with the marine industry for the isolated RF and DC grounds allow for less RF or common mode current at the radio. These outstanding remote antenna tuners can tune a wet noodle without breaking a sweat. The RF and electrical ground is solid. Tuners are generally hard to get wrong. That said, the quality of the inner workings are rated for power and are NOT the lower-end, cost-effective-focused tuners we see in all the magazines. Radio ops that desire the very best quality available and Made in America buy SGC.

You want quality, this is it. They are military-grade, Made in the USA, marine industry-rated, autotuners, and are highly recommended for use with Greyline HF vertical antennas, and stealth HOA Flagpole Antennas. Built to last. 


SG-230 Smartuner™


The Gold Standard

The SG-230 Smartuner was the first product in the HF market to offer fast, flexible tuning without any user interface. The Smartuner senses RF when you transmit from your transceiver and automatically finds the best SWR match to your antenna. This unit works with ANY radio and ANY antenna and requires NO special interface, making it the most versatile tuning product available. The SG-230 can be used in a base station, mobile, marine, and aviation applications - and has been the "Gold Standard" of automatic antenna tuning for more than a decade.




A Wise Investment

The SG-230 is built in a rugged ABS plastic enclosure which is sealed to protect it and allows ultimate versatility in installation. With this tuner and any single antenna, you will have continuous coverage from 1.8 to 30 MHz and it can be used with any transceiver you'll ever own. The unit is built to last, with the highest quality components, and backed by SGC's standard 1-year warranty and industry-leading technical service.


HF Frequency Range:
Power Input Range:
Input Impedance Range:
DC Input Requirement:
DC Operating Range:
Input Current:
Recurrent set time:
Memory Capacity:
Possible Tuning Combinations:
Antenna Length:


Operating Temperature:

Case Construction:
Control Cable:

Control Cable Length:

1.6 to 30 MHz
3 to 200W (PEP) and 80W 
45 to 55 ohms
Typical: Less than 2:1
+13.6 VDC (nominal)
+10 to 18 VDC
900 ma - milli Amps
Typical: Less than 2 seconds
Typical: Less than 10 milliseconds
170 non-volatile locations
1/2 million
Minimum lengths: 8 feet (3.3 to 30 MHz) 23 feet (1.6 to 30 MHz)
Any position, ideal at the antenna feed point
-35 to +70 degrees C
16L x 12W x 3.5H inches (41L x 31W x 8H cm)
8 pounds
Waterproof ABS plastic cover
Shielded 4 conductor RG-58 coax
PL-259 connector
9 feet standard, custom to-order
24VDC Option, Shock Mount Option


Pro Tip: Add the DC/DC Coaxial Line Isolator to remote control the SGC RF tuning unit over your feedline coax. That means, no extra control cabling other than your coax to the antenna site.  




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