MFJ-998RT Legal Limit IntelliTuner
TM
Automatic Remote Antenna Tuner Instruction Manual
© 2011 MFJ Enterprises, Inc
MFJ-998RT Version 1A
2
Features
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Automatically matches antennas from 12 to 1600 ohms impedance (SWR up to 32:1)
•
Handles 1500 watts SSB/CW
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Tune in less than 20 seconds, usually less than 5 seconds
•
Over 20,000 non-volatile memories for tuner settings
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Eight memory banks with over 2500 memories per bank
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Highly efficient switched–L network matching circuit
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1.8 to 30 MHz continuous frequency coverage
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Adjustable target SWR from 1.0 to 2.0
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Adjustable SWR threshold from 0.5 to 1.5
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Multifunction backlit LCD display with contrast control for testing and setup
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Numeric readings for SWR, forward and reflected power for testing and setup
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Bar meters for SWR, forward and reflected power with range options for testing and setup
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Audio SWR meter for testing and setup
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Built-in frequency counter for testing and setup
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Direct read-out of matching L/C values available after tuning for testing and setup
Specifications
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Impedance matching range: 12 to 1600 ohms
•
SWR matching range: up to 4:1 for < 50 ohms and up to 32:1 for > 50 ohms
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Minimum power for tuning: 5 watts
•
Maximum power while tuning: 100 watts with foldback, 20 watts without foldback
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RF power limit: 1500 watts SSB/CW
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Frequency range: 1.8 to 30 MHz continuous coverage
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Frequency counter accuracy: ±1 kHz across HF bands
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Capacitance range: 0 to 3926 pF nominal (256 values) on input side 0 to 976 pF nominal (64
values) on output side
•
Inductance range: 0 to 24.28
µ
H 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 erase/write cycles
•
Memory data retention: > 200 years
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Power requirements: 12 - 15 volts DC, 2.1 × 5.5 mm coaxial plug, center pin positive
•
Current consumption: 1.4 amps or less
•
Dimensions (approx.): 13 ¾ × 6 ¼ × 18 in. (350 × 159 × 457 mm) (width/height/depth) including
connectors
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Weight (approx.): 9 lb. 8 oz. (4.3 kg)
•
Operating Temperature -40 to +160 degrees F
† Specifications and design are subject to change without notice.
