MFJ-939I/K/Y automatically tunes your antenna as you tune your radio. SWR is just always low. Tunes your coax fed or random wire antennas 1.8-30 MHz from 2 Watts QRP to full 200 Watts SSB/CW.

MFJ-939I/K/Y automatically tunes your antenna as you tune your radio. SWR is just always low. Tunes your coax fed or random wire antennas 1.8-30 MHz from 2 Watts QRP to full 200 Watts SSB/CW.

MFJ-939 uniquely measures your antenna' s complex impedance (R, X), computes the L-network and snaps in needed components for instant matching. AdaptiveSearch determines a sub-set of all solutions that can provide a safe match and searches only …

MFJ's exclusive InstantRecallTM, IntelliTuneTM and AdaptiveSearchTM algorithms give you fast automatic tuning with more than 20,000 non-volatile VirtualAntennaTM memories. The antenna has eight banks of memory; with over 2500 non-volatile memories for tuner settings.

View and Download MFJ Plug&Play Intellituner -939 instruction manual online. Automatic antenna tuner. Plug&Play Intellituner MFJ-939 tuner pdf manual download.

The MFJ-939 series Compact IntelliTuner™ automatically tunes your antenna as you tune your radio. SWR is just always low. It can tune your coax-fed or random wire antennas from 1.8 to 30 MHz from 2 to 200 Watts SSB/CW. It matches 6-1600 Ohms (SWR up …

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As you’re rag-chewing, contesting or DXing, the MFJ-939 is learning your antenna and the way you operate, storing all this in its 20,000 memories. The more you use it, the more it learns. Measure & Compute = Instant Match