Model SG-235 SmartunerTM automatic microprocessor antenna coupler.
Coupler can be used within its' power rating with any SSB in range of 1.8-30 MHz.
Designed for marine, mobile and fixed base applications.
For most antenna types: 50 ft or longer and 315 ft from 1.8 to 3.3 MHz.

Number of channels: unlimited
Frequency range: 1.8-30 MHz
Power rating: 500 watts PEP maximum: 12VDC operation
SWR: Less than 1.5 to 1
Tune power: 3 watts nominal
Weight: 8Lbs.
Dimensions: 16Dx12Wx3H