Instruction manual

MFJ-998RT Legal Limit IntelliTuner

Automatic Remote Antenna Tuner Instruction Manual

MFJ-998RT Version 1A

Features

• Automatically matches antennas from 12 to 1600 ohms impedance (SWR up to 32:1)

• Handles 1500 watts SSB/CW

• Tune in less than 20 seconds, usually less than 5 seconds

• Over 20,000 non-volatile memories for tuner settings

• Eight memory banks with over 2500 memories per bank

• Highly efficient switched–L network matching circuit

• 1.8 to 30 MHz continuous frequency coverage

• Adjustable target SWR from 1.0 to 2.0

• Adjustable SWR threshold from 0.5 to 1.5

• Multifunction backlit LCD display with contrast control for testing and setup

• Numeric readings for SWR, forward and reflected power for testing and setup

• Bar meters for SWR, forward and reflected power with range options for testing and setup

• Audio SWR meter for testing and setup

• Built-in frequency counter for testing and setup

• Direct read-out of matching L/C values available after tuning for testing and setup

Specifications

• 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

• Minimum power for tuning: 5 watts

• Maximum power while tuning: 100 watts with foldback, 20 watts without foldback

• RF power limit: 1500 watts SSB/CW

• Frequency range: 1.8 to 30 MHz continuous coverage

• Frequency counter accuracy: ±1 kHz across HF bands

• 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 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 erase/write cycles

• Memory data retention: > 200 years

• 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

• 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.