Specifications

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Antenna Tuners
300 Watt Antenna Tuner
This 300 watt RF output power
antenna tuner will match any
transmitter or transceiver to
virtually any antenna. Peak or
average forward and reflected
power plus SWR can be read on
the illuminated cross-needle me-
ter. The tuner uses a “T” matching
network and covers all bands between 160 and 10 meters. This network will tune dipoles,
inverted-vees, verticals, mobile whips, beams, random wires and many other antenna
types. The tuner has rear panel connectors for coaxial, single wire or two wire feedlines. A
built-in 4:1 balun allows the use of balanced open wire, twinlead, or twin-axial feedlines.
MFJ-949E ...................................................................................................................$149.95
300 Watt Roller Inductor
Antenna Tuner
This tuner’s AirCore Roller
Inductor, gear-driven turns
counter, and spinner knob gives
you exact inductance control
for absolute minimum SWR. You
get the widest matching range,
ultra-high-Q, the lowest loss,
highest e iciency and highest power handling of any roller inductor in ham radio. Other
features include a full size lighted cross-needle SWR/wattmeter that reads true peak
forward power, QRM-Free PreTune, eight-position antenna switch, built-in 50 Ω dummy
load, and a heavy-duty 4:1 balun, all enclosed in a tough, attractive cabinet.
MFJ-969 ...................................................................................................................$184.95
1,500 Watt
Fully Balanced
Antenna Tuner
This is a full legal limit, fully-balanced
antenna tuner. You get superb balance, very
wide matching ranges (12-2,000 Ω)— and
continuous 1.8 to 30 MHz coverage including
all WARC bands! It handles a full 1,500 watts
SSB and CW. You can tune any balanced lines including 600 Ω open wire line,
450/300 Ω ladder lines, and 300/72 Ω twin lead—shielded or unshielded. You can
also tune random wires and coax-fed antennas.
MFJ-976 ................................................................................................................. $469.95
1,500 Watt Antenna Tuner
with Dummy Load
This roller inductor tuner is a CW antenna
tuner rated to the US amateur legal limit of
1,500 watts. It is designed to match 50 Ω
output amplifiers, transmitters, or transceivers
to virtually any antenna. Peak and average
forward power, reflected power, and SWR are
displayed on the illuminated cross-needle
meter. The roller inductor “T” matching network continuously tunes all frequencies
from 1.8 through 30 MHz. You can match dipoles, inverted-vees, verticals, mobile
whips, beams, random wires and many other antenna types. The tuner has rear panel
connectors for coaxial, single wire or two wire feedlines. A built-in 4:1 balun allows the
use of balanced open wire, twinlead, or twin-axial feedlines.
MFJ-989D ................................................................................................................. $349.95
2,500 Watt
Continuous Carrier Tuner
This high-power antenna tuner operates at
power levels up to 2,500 watts SSB or CW.
It uses an edge wound roller inductor in a
matching “T” network to continuously tune
loads between 1.8 and 30 MHz. The tuner
also features a true peak or average reading
SWR/wattmeter. It will match dipoles,
inverted-vees, verticals, mobile whips, beams, random wires, and many other antenna
types. There are rear panel connectors for coaxial and single wire or balanced feedlines.
The balanced feedlines are isolated from the tuner chassis with a fiberglass panel to
reduce capacitive coupling, withstand high voltages, handle high currents. The tuner
is designed to match 50 Ω output amplifiers, transmitters or transceivers to virtually
any antenna with an impedance ranging from 12.5-2,000 Ω on 3.5-30 MHz. It will match
loads ranging from 12.5-800 Ω on 1.8-3.5 MHz. An internal six-position antenna selector
switch selects a built-in 50 Ω dummy load, two coaxial line outputs, or a single wire/
balanced line output.
MFJ-9982 .................................................................................................................$629.95
Remote IntelliTuner
TM
Automatic Antenna Tuner
Rapidly tune and unbalanced
antenna, single wire or
aluminum vertical, with an
MFJ-927. This tuner has 4
memory banks, each holding
2,500 non-volatile memories. It
uses a high e iciency switching
L-network with wide matching
abilities and is rated at 200 watts SSB/CW.
When you transmit, the tuner automatically adjusts for lowest SWR—it actually learns
and remembers your frequency and tuner settings. You’ll typically be ready to transmit
in less than 5 seconds. This tuner covers 1.8 to 30 MHz, can match antennas from 6 to
1,600 Ω and includes an external bias tee provides power through the coaxial cable
for remote control capability. It’s also weather protected and suitable for mounting
outdoors. See all the features at DXEngineering.com.
MFJ-927 Remote IntelliTuner Automatic Antenna Tuner ................ $239.95
1.8 to 30 MHz Artificial Ground
This artificial RF ground resonates
a random length of wire thrown
along the floor and produces a tuned
counterpoise. This ground e ectively
places your rig near actual earth ground
potential even if the rig is on the
second floor or higher with no earth
ground possible. It reduces the electrical
length of the ground connection
wire to virtually zero by tuning out its reactance. The artificial ground connects
between your rig and a random length of wire or a connecting ground wire. It’s tuned for
maximum ground current using the built-in RF ammeter.
MFJ-931 .................................................................................................................... $109.95
300 Watt Antenna
Tuner/Artificial Ground
This unit combines a versatile antenna
tuner with an artificial ground. It turns a
random wire into an e ective antenna
that works. It’s great for traveling, emer-
gency use, or as a makeshi antenna.
The 300 watt, general purpose antenna tuner covers 1.8 to 30 MHz. It features a two
range, lighted cross-needle meter that lets you read SWR, forward, and reflected power
all at a glance, and a 4:1 balun for balanced lines. You also get an e icient airwound
inductor, a special high-current/voltage 12 position inductor switch, and two 1,000-volt
air-variable capacitors. It tunes all types of antennas and feedlines including random
wire, coax, and balanced lines.
MFJ-934 .................................................................................................................... $199.95
HF 1,500 Watt Antenna
Tuner with Wattmeter &
Antenna Switch
This tuner handles 1,500 watts
PEP SSB amplifier input power
(800 watts PEP SSB amplifier
output power)—ideal for use with
Ameritron’s best-selling 800 watt
AL-811H or 600 watt AL-811 amplifiers! The ultra-compact (10.75" W x 4" D x 10.875" H)
tuner features an aluminum-skirted knob set with a weighted deluxe spinner knob and
a scratch-proof, multi-colored Lexan® front panel. Two transmitting tuning capacitors
and MFJ’s exclusive AirCore roller inductor gives you precise control to get your SWR
down to an absolute minimum.
MFJ-962D .............................................................................................................. $279.95
1,500 Watt IntelliTuner™
This automatic antenna
tuning center has an SWR/watt
meter and an antenna switch for
two antennas. It lets you rapidly
tune almost any unbalanced or
single-wire antenna automati-
cally. Balanced feedlines may be
used with an external 4:1 balun connected to the tuner’s antenna output. The tuner
features MFJ’s exclusive Amplifier Bypass Control™. It fully protects your amplifier during
tuning and will even take your amplifier o -line if SWR increases above a user-defined,
pre-set limit. The tuner includes a highly-e icient switching L-network with wide match-
ing capability, 1.8 to 30 MHz coverage, cross-needle power meters, backlight LCD display,
a radio interface port, and heavy-duty 16 amp/1,000-volt relays. It is rated at 1,500 watts
SSB/CW and will match impedances from 12 to 1,600 Ω antennas (SWR up to 32:1).
MFJ-998 .................................................................................................................... $599.95