MFJ-212 tunes up your antenna tuner without transmitting a single milliwatt!

Precisely tune your antenna tuner for a 1:1 SWR - no additional "tweaking" needed.

Avoids overheating/arcing caused by high SWR and long tune-ups.

MFJ's RF Guard bypasses the MFJ-212 to prevent damage.

Handles up to 300 Watts.

Works with all radios 160-6 Meters. 3-1/3 x 1-1/4 x 4 inches. 9-12 VDC or 110 VAC with MFJ-1312D

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