The “Optimizer” switch selectable SSB/CWfilter offers razor sharp filtering with switch-selectable bandwidths (80, 110, 50, 180Hz centered on 750 Hz), steep skirted SSB filtering.
300-3000 Hz tunable 70 dB notch filter. Plug into phone jack. Speaker. Built-in 2-Watt amp.
Use 9-18 VDC or 110 VAC with optional MFJ-1312D