MFJ MFJ-928 - MFJ-928 Features and Specifications; Key Features; Technical Specifications

MFJ-928 Compact IntelliTuner Automatic Antenna Tuner Instruction Manual
© 2005 MFJ Enterprises, Inc.
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Features
• Automatically matches antennas from 6 to 1600 ohms impedance (SWR up to 32:1)
• Handles 200 watts SSB/CW
• 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 2500 memories per bank
• Highly efficient switching L-network matching circuit
• 1.8 to 30 MHz continuous frequency coverage
• Audio SWR meter
• Built-in frequency counter
• Built-in radio interface circuitry for compatible radios
• Built-in bias tee
• Two SO-239 coax fed antenna connectors
• Connector for random wire or single wire antennas
Specifications
• Impedance matching range: 6 to 1600 ohms
• SWR matching range: up to 8:1 for < 50 ohms and up to 32:1 for > 50 ohms
• Minimum power for tuning: 2 watts
• Maximum power while tuning: 100 watts with foldback, 20 watts without foldback
• RF power limit: 200 watts SSB/CW
• Frequency range: 1.8 to 30 MHz continuous coverage
• Frequency counter accuracy: ±1 kHz across HF bands
•
Frequency counter range: up to 50 MHz
• Capacitance range: 0 to 3961 pF nominal (256 values)
• Inductance range: 0 to 24.86 μH nominal (256 values)
• Relay rating: 10 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: 750 milli-amp or less
• Dimensions (approx.): 6.5 × 2.8 × 7.5 in. (165 × 71 × 191 mm) (width/height/depth)
not including connectors
• Weight (approx.): 2.3 lb. (1.04 kg)
† Specifications and design are subject to change without notice.