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- Manuals
- 1
- Languages
- EN
- Last added
- 2012-01-04
Featured MFJ manuals

MFJ MFJ-998 Automatic Antenna Tuner Instruction Manual
The MFJ-998 IntelliTuner is a full‑legal‑limit automatic antenna tuner with an internal SWR/wattmeter, amplifier bypass control, and up to 20,000 non‑volatile memory slots. It covers 1.8‑30 MHz, handles up to 1500 W SSB/CW, and matches impedances from 12 Ω to 1600 Ω.
The manual includes safety notices, installation instructions, front‑ and back‑panel descriptions, menu navigation, radio interface connections for major brands, calibration procedures, and warranty information.
Covers: The Basics · Features · Specifications · Front Panel · Back Panel · Menus
Latest MFJ manuals
MFJ MFJ-998 Automatic Antenna Tuner Instruction Manual
User Manual 52 pages · 536 KB · ENThe MFJ-998 Automatic Antenna Tuner manual provides setup, operation, and technical specifications for the full‑legal‑limit tuner.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in MFJ manuals
What is the impedance matching range of the MFJ-998?
It matches impedances from 12 ohms up to 1600 ohms.
From: MFJ MFJ-998 Automatic Antenna Tuner Instruction Manual
How much RF power can the MFJ-998 handle?
The tuner is rated for up to 1500 watts SSB/CW.
From: MFJ MFJ-998 Automatic Antenna Tuner Instruction Manual
