All features of MFJ IntelliTuners– Ultra-fast, Safe Automatic Tuning . . . Wide Tuning Range (12-1600 Ohms from 1.8 to 30 MHz ) . . . Radio Interfaces . . . Built-in Antenna Switch for two coax/long wire . . . Automatic Bypass protects your amplifier . . . Field Upgradeable Software . . . Very Compact!
The MFJ-998 Full Legal Limit 1500 Watt Intellituner takes you to the final level in automatic antenna tuners. With a capability of 1500 watts SSB and CW, coupled with automatic tuning, your high-power station can now operate essentially hands-free even when frequency and band changes are made.
Fast Automatic Tuning
The MFJ-998 instantly matches impedances from 12-1600 ohms using MFJ`s exclusive IntelliTune, AdaptiveSearch and InstantRecall algorithms with over 20,000 VirtualAntenna Memories. When you key your transmitter, MFJ`s InstantRecall checks to see if that frequency has been used before. If so, tuning is instantaneous. If not, MFJ`s IntelliTune algorithm (based on MFJ`s efficient SWR Analyzer technology) measures the impedance, snaps the necessary components in place, and then fine-tunes the SWR. If the antenna impedance is outside the tuner`s measurement range, MFJ`s Adaptive Search algorithm measures the frequency and determines only relevant component values — which are then searched for fast tuning.
Safe Automatic Tuning and Amplifier Protection
The MFJ-998 includes MFJ’s Amplifier Bypass Control — an MFJ exclusive feature! When used with a transceiver interface cable, tuning is safe and “stupidproof”! When a tuning cycle is initiated, the MFJ-998 first bypasses any in-line amplifier. Next, the MFJ-998 initiates a low-power CW tuning carrier from your transceiver. When tuning is complete, the MFJ-998 reverts your transceiver to its prior power and mode, and re-enables the amplifier. This entire cycle typically takes less than a second! Finally, if the MFJ-998 cannot find a match better than a preset amplifier SWR trip-point, the amplifier stays bypassed to provide automatic SWR protection for your amplifier — another MFJ exclusive!
Analog SWR/Wattmeter
A large analog Cross-Needle SWR/Watt-meter displays selectable 300/60 watt or 3000/600 watt forward/reflected full-scale ranges. You can even select automatic power ranging — the best power range is automatically selected for you.
Digital LCD SWR/Wattmeter
A two-line, 16-character backlit LCD meter displays SWR, forward/reflected power, frequency, antenna selected, an auto-ranging bargraph power indication,
and much more. You can even read the final matching inductor and capacitor values should you want to build your own fixed matching network. Simple menus
determine displayed information – no complex button combinations to remember!
MFJ VirtualAntenna Memory
MFJ new VirtualAntenna Memory system gives you 4 antenna memory banks for
each of 2 switchable antenna connectors. Select up to 4 antennas on each antenna connector. Each antenna has 2500 memories, 20,000 total. Has two coax connectors and a binding post for end-fed long wire antennas.
Download and Upgrade Remotely
Field upgradeable firmware via the serial port — download and upgrade your MFJ-998 as new features are introduced!
Plus Much More!
Built-in radio interface provides control of most amateur transceivers.
Automatic bypassing when excessive tuning power or power in excess of 1500 watts is applied.
Use balanced line antennas with external MFJ-912, 1.5 kW 4:1 balun.
MFJ-998 is the smallest full legal-limit auto-tuner in the world! 13Wx4Hx15D
inches fits easily into your ham station. Weighs just 8 pounds — great portability! Requires 12-15VDC at 1.4 amps maximum or 110 VAC with MFJ-1316.
Pre-wired Rig Interface
Cables for MFJ-929/998
These cables work with the following MFJ Automatic tuners: MFJ-929, MFJ-928, MFJ-925, and the MFJ-998.
MFJ-5114K Prewired Rig Interface cable for Kenwood and compatibles.
MFJ-5114I. Prewired Rig Interface cable for Icom and compatibles.
MFJ-5114Y. Prewired Rig Interface cable for Yaesu and compatibles.
MFJ-5114Y3. Prewired MFJ-929 to FT-1000MP, FT-9000 Yaesu rigs.
MFJ-5114Y4. Prewired MFJ-929 to FT2000 Yaesu rigs.
App - Mobile
The World Wide Repeater Directory
RT Sytems and RFinder – The World Wide Repeater Directory bring integrated routing to radio progamming! Once again RFinder and RT Systems... Read more
Shortwave radio distributes smartphone apps
Imagine being able to download an app…without the internet. Well, it’s finally happened, thanks to shortwave radio. Broadcasting Board of Governors (B... Read more
RFinder – The World Wide Repeater Directory now free trial on Android!
In order to support the proliferation of third party app stores worldwide, we have now released RFinder on Android as trialware! Just go download it f... Read more
DroidRTTY – RTTY for Ham Radio App Android
Ham Radio App DroidRTTY is an application to decode and encode Ham Radio RTTY with the build in microphone/speaker or wired to your radio. A wa... Read more
Review
SDR Play Review and Operation
The SDR-play RSP1 is a powerful wideband fullfeatured SDR which covers all frequencies from 10 kHz up to 2 GHz. All it needs is a PC and an antenna to... Read more
Ailunce HD1 review by Rowen Warren（KE0RTL）
Ailunce HD1 Review A few weeks ago, I received my Ailunce HD1. This is my full review of the radio. The radio itself is high quality. The quali... Read more
M2 6M-1K2 HIGH-POWER 6 METER AMPLIFIER – QST Review
About 5 years ago, M2 Antenna Systems introduced a high power solid state amplifier for 6 meters (model 6M-1000) capable of a full kilowatt of output.... Read more
“This week I’m reviewing the Openspot by Shark RF. No images to hunt down, It runs D-Star, DMR & Fusion all in one box. Don’t fo... Read more
Coaxial cable quality review
Coaxial cable quality review What to look for in a coaxial cable and at what price? Not all coaxial cables are constructed equal. This is what you sho... Read more
Antenna
Fixing a brand new Cushcraft A3S beam antenna
Cushcraft A3S Three Element Beam – 10, 15 & 20 Meters A3 World Ranger, our top selling tribander, has become the A3S with all stainless ste... Read more
80m or 160m Reduced Half Sloper Antenna by W8AMZ
160m Reduced ½ Sloper Do You Have Limited Space? Do You Dream Of Operating 160m? NO PROBLEM! Do you... Read more
Introducing the SteppOut Vertical High-performance 1/4-wave HF Antenna From 14 to 30 Mhz By Bill, AA4BQ
From price to performance, the SteppOut Vertical is a true 1/4-wave vertical for 20-10m and for under $50! Let’s have some fun. The end product... Read more
The Yagi-Uda Antenna
A Yagi-Uda antenna, commonly known simply as a Yagi antenna, is a directional antenna consisting of multiple parallel dipole elements in a line,[1] us... Read more
Installing Wire Antennas in Trees
Installing Wire Antennas in trees Read Full Article: Read more