MFJ MFJ-993 - Features and Specifications

MFJ-993 IntelliTuner Automatic Antenna Tuner Instruction Manual
© 2003-2004 MFJ Enterprises, Inc.
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Features
• Automatically matches antennas from 6 to 1600 ohms impedance
• Handles 300 watts PEP SSB, 150 watts CW
• Tune in less than 15 seconds, usually less than 5 seconds
• Over 2000 non-volatile memories for tuner settings
• 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
• Built-in frequency counter
• Numeric readings for SWR, forward and reflected power
• Bar meters for SWR, forward and reflected power
• Aural SWR meter with volume control
• 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
Specifications
• Impedance matching range: 6 to 1600 ohms
• Minimum power for tuning: 5 watts
• Maximum power while tuning: 100 watts with foldback, 20 watts without foldback
• RF power limit: 300 watts PEP SSB, 150 watts CW
• Frequency range: 1.8 to 30 MHz continuous coverage
• Frequency counter accuracy: ±1 kHz across HF bands
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Frequency counter range: up to 50 MHz
• Capacitance range: 0 to 3908 pF nominal (256 values)
• Inductance range: 0 to 24.86 µH nominal (256 values)
• Relay rating: 16 amp 1000 volts
• Relay electrical life: 100,000 operations
• Relay mechanical life: 10 million operations
• Memory endurance: 1 million write cycles
• Memory data retention: 100 years
• Power requirements: 12 - 15 volts DC, 2.1 × 5.5 mm coaxial plug, center pin positive
• Current consumption: 1 amp or less
• Dimensions (approx.): 10.1 × 2.8 × 9.2 in. (257 × 71 × 234 mm) (width/height/depth)
not including connectors
• Weight (approx.): 3.9 lb (1.77 kg)
† Specifications and design are subject to change without notice.