MFJ-993B IntelliTuner Automatic Tuner with 3 Year Warranty.
MFJ-993B IntelliTuner™ automatic antenna tuners let you rapidly tune any antenna automatically: balanced, unbalanced, or single-wire. MFJ 993B tuners are comprehensive automatic antenna tuning centers with an SWR/wattmeter, an antenna switch for two antennas, and a 4:1 current balun for balanced lines. They may be operated at a remote distance through a 9-pin to 9-pin computer cable using the MFJ remote control unit.
MFJ's exclusive InstantRecall™, IntelliTune™, and AdaptiveSearch™ algorithms give you fast, automatic tuning with more than 20,000 non-volatile VirtualAntenna™ memories. Each of the two antennas has four banks of memory; each memory bank has over 2,500 non-volatile memories for tuner settings. These tuners include a highly efficient switching L-network with wide matching capability, 1.8 to 30 MHz coverage, cross-needle power meters, a backlight LCD display, a port for an accessory remote control, a radio interface port, and heavy-duty 16 amp/1,000 V relays.
They are rated at 300 watts to match 6 to 1,600 ohm antennas (SWR up to 32:1) or 150 watts to match wider range of 6 to 3,200 ohm (SWR up to 64:1) antennas. A maximum of 256 values of inductance and 256 values of capacitance is available. With the capacitance switched between the input and output side, this provides a total of 131,072 L/C tuning combinations. The nominal tuning ranges are 0 to 24 microhenry and 0 to 3,900 pF. All MFJ IntelliTuners™ learn and remember. When you transmit, they automatically adjust for minimum SWR and remember the frequency and tuner settings, safely stored in non-volatile memory. The next time you operate on that frequency (or close to it) and antenna, these tuner settings are instantly restored and you're ready to operate in milliseconds. Each antenna selection has four banks of memory, which can learn and remember more than 2,500 frequencies and tuner settings per bank.
* Automatically matches antennas with impedance of 6 to 1,600 ohms or 6 to 3,200 ohms
* Handle 300 watts (match 6 to 1,600 ohms) or 150 watts (match 6 to 3,200 ohms)
* Tune in less than 15 seconds, usually less than 5 seconds
* Over 20,000 non-volatile memories for tuner settings
* Four memory banks per antenna with over 2,500 memories per bank
* Highly efficient switching L-network matching circuit
* 1.8 to 30 MHz continuous frequency coverage
* Adjustable target SWR 1.0 to 2.0
* Adjustable SWR threshold 0.5 to 1.5
* Lighted cross-needle SWR/wattmeter with high, low, and auto range options
* Multifunction backlit LCD display with contrast control
* Numeric readings for SWR, forward, and reflected power
* Bar meters for SWR, forward, and reflected power with range options
* Audio SWR meter with volume control
* Built-in frequency counter
* Two SO-239 coax fed antenna connectors
* Connector for random wire or single wire antennas
* Built-in 4:1 current balun for balanced line antennas
* Optional remote control
* Optional radio interface for compatible radios
* Requires 12 Vdc at less than 1 amp for operation
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