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MFJ-993B - 300/150W Deluxe HF Automatic Tuner

MFJ-993B - 300/150W Deluxe HF Automatic Tuner
Tuning & Matching Units
1 Review(s)

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World's First dual power level 300/150 Watts SSB/CW Tuner. Select 300 Watt SSB/CW power level and match 6-1600 Ohm antennas Or . . . select 150 Watt SSB/CW power level and match extra wide-range 6-3200 Ohms! The MFJ-993B IntelliTuner lets you tune any antenna automatically balanced or unbalanced -- ultra fast. It's a comprehensive automatic antenna tuning center complete with SWR/Wattmeter, antenna switch for two antennas and 4:1 current balun for balanced lines. MFJs exclusive IntelliTuner, Adaptive Search and InstantRecall algorithms give you ultra fast automatic tuning with over 20,000 VirtualAntenna Memories.  You get a highly efficient L-network, 6-1600 ohm matching at 300 Watts SSB/CW or extra-wide 6-3200 Ohm matching at 150Watts SSB/CW, 1.8-30 MHz coverage, Cross-Needle and digital meters, audio SWR meter, backlit LCD, remote control port, radio interface, heavy-duty 16 amp/1000V relays. When you transmit, the MFJ-993B automatically tunes for minimum SWR and remembers your frequency and tuner settings. The next time you operate on that frequency and antenna, these tuner settings are instantly restored and you're ready to operate in milliseconds! MFJs InstantRecallTM first checks its memory to see if you have operated this frequency before. If so, tuning is instant-aneous and you're ready to operate. If not, MFJs IntelliTuner algorithm - - based on MFJ s famous SWR Analyzer technology - - kicks in. It measures the complex impedance of your antenna. Next, it calculates the components it needs and instantly snaps them in. Then, it fine tunes to minimize SWR -- you're ready to operate. It's all done in a fraction of a second.

If it can't accurately determine impedance, MFJ's AdaptiveSearch algorithm goes into action. Frequency is measured and relevant components values are determined. Only those values are searched for ultra-fast tuning. For even faster searches, you can set the target SWR to 2 (settable 1.0-2.0).



Key Features/Specifications:

  • Type: Dual 300/150 Watt intelliTuner automatic tuner 

  • Frequency: 1.8-30MHz

  • Power: 300W SSB & 150W CW

  • Meter: Cross needle 

  • Size: 254 x 64 x 228mm 

  • Includes: LCD readout & 4:1 balun 

  • Cross Needle and Digital SWR/Watt Meters

  • VirtualAntenna Memory

  • 2500 memories per antenna

  • Manually tune when you can't transmit

  • Lighted cross needle and digital meters

  • Backlit LCD display


Bar Code/EAN:
An ATU that doesn't disappoint
I've owned 2 off these ATU's over the years, I was reluctant to sell my 1st but quickly purchased my current one, and still used often, with many antennas over the year's the tuner hasn't disappointed me. It has a built in 4:1 balun for use with wire antennas, it does sound like a machine gun when tuning up but after about 5-15 seconds it's suprisingly good what it can tune. Ok it's not the cheapest price but it's worth it if your current antenna fails or your using a temporary antenna Review by Nick 2E0TBT / (Posted on 26/04/2019)

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