MFJ Antenna tuners etc.

On this page you will find:

The tuners by MFJ (USA) are powerful products, combining solid construction with useful functions and ease of use. And these products are affordable!
Most of the tuners shown here are suitable for a frequency range from 1.8 to 30MHz, some units also cover 6m.

MFJ-994BRT Automatic Outdoor Antenna Tuner 600W

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MFJ-994BRT

The MFJ-994BRT is an automatic tuner for coax or endfed antennas. The tuner is weatherproof and suitable for outdoor use. The max. transmit power is 600W PEP, 600W CW and 500W continous carrier (RTTY, FM). The MFJ-994BRT tunes antennas over the entire shorttwave range from 1.8 to 30MHz. The time to tune is max. 15 seconds, but usually as low as 5 seconds, becasue once found settings are stored in one of 10000 permanent memories.

The MFJ-994BRT works automatically, no manual tuning required. The tuning starts with a transmit power as low as 2 Watt, but 10 to 20 Watt are recommend for best results. The max. power while tuning should not exceed 20 Watt. Although the tuner is equipped with heavy duty 16A/1000V relays, they might be damaged when tuning at higher powers. The switched L network of the MFJ-994BRT tuner allows up to 192 dirrekt L and 192 different C values, resulting in an impedance matching range of 12 to 800 Ω.

The MFJ-994BRT is housed in a weatherproof outdoor box. The power supply is done over the coax feed, for that purpose a Bias-T MFJ-4117 is included in shipment. The tuner has PL sockets for the transceiver and the antenna, alternatively a wire post can be used for end-fed wires. For parallel wire fed antennas an external balun is required (not included).

Order No.
MFJ-994BRT MFJ Automatic Outdoor Tuner MFJ-994BRT 399.00 € Buy now

MFJ-998RT

MFJ-998RT

Similiar to the MFJ-994BRT (see above) the tuner MFJ-998RT is an automatic tuner suitable for outdoor use, but with a max. transmit power handling of 1500W! The weatherproof case is made of an ABS cover and a stainless steel box.

In contrast to the MFJ-994BRT the MFJ-998RT can match impedances from 12 to 1600 Ω. The minimum required transmit power for tuning is 5 W, but 10 to 20W are recommended for best results. Max. transmit power after tuning is 1500W PEP, 1500 W CW.

The power supply of the MFJ-998RT is done over the coaxial cable. For this purpose a Bias-T MFJ-4117 is included in the shipment.

Order No.
MFJ-998RT MFJ Automatic Outdoor Tuner MFJ-998RT 770.00 € Buy now
Technical Data MFJ-994BRT / MFJ-998RT
MFJ-994BRT MFJ-998RT
Impedance Range 12 - 800 12 - 1600 Ω
Minimal Transmit Power 2 5 W
Transmit Power for Tuning 10 - 20 10 - 20 W
Max. Transmit Power 600 1500 W
Frequency Range 1.8 - 30 MHz
Tuning Range C 0 - 2950 0 - 3926 pF
Tuning Range L 0 - 17 0 - 24 µH
Supply Voltage 12 - 15 V DC
Power Consumption max. 0.85 max. 1.4 A
Size 257 x 71 x 234 350 x 159 x 457 mm (BxHxT)
Weight 1.7 4.3 kg

MFJ-993B automatic antenna tuner 300W

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MFJ-993

The MFJ-993B is an automatic antenna tuner for coax- or parallel wire fed antennas. Integrated is a SWR and power meter, a switch for two antennas and a 4:1 balun. Impedance matching range is 6 to 1600 Ω from 1.8 to 30MHz. 2000 memory locations store once found settings, speeding up the tuning process when a frequency is later used again. Tuning starts automatically when transmit power is applied, manual tuning is also possible.
An analog meter shows SWR, further a LC display shows SWR, power, frequency and other information. Very useful for visually handicapped users is the acoustic feedback on SWR. Max. power load is 300W PEP SSB, 150W CW

The optional interface cable MFJ-5124I allow connecting the tuner to any Icom rig with the 4 pin tuner socket (e.g. IC-706, IC-7456Pro, IC-756Pro/2/3 and many more). Over this cable the tuner is controlled and supplied with power.
Equipment by Kenwood and Yaesu are connected with the cables MFJ-5124K (Kenwood) and MFJ-5124Y (Yaesu). Since these rigs require a somewhat more complex control the cables include an electronics component which makes them more expansive.


Remote Control MFJ-993RC

As an option a remote control MFJ-993RC is available for this tuner. This remote control allows the selection of the two antennas, manual tuning of L and C and of course the automatic tuning. Two LEDs show the status 'tuned' and 'hi SWR'. The MFJ-993RC comes with a 180cm long cable. This is a standard serial cable with 9 pin SubD male/female connectors. This cable can be extended to larger lengths. A maximum length is not specified by the manufacturer, but about 15 to 20m should be possible.

Order No.
MFJ-993B MFJ-993B Automatic Tuner 290.00 € Buy now
MFJ-993RC Remote Control for MFJ-993RC 45.00 € Buy now
MFJ-5124I Cable for Icom tuner interface 29.20 € Buy now
MFJ-5124K Cable for Kenwood 74.90 € Buy now
MFJ-5124Y Cable for Yaesu 69.00 € Buy now
MFJ-5124Y2 Cable for Yaesu FT-847 69.00 € Buy now
MFJ-5124Y4 Cable for Yaesu FT-2000 39.00 € Buy now

MFJ-5124I (Icom)

MFJ-5124K (Kenwood)

MFJ-5124Y (Yaesu)

MFJ-929 Automatic, compact Antenna Tuner 200W

Bild MFJ-929

Similiar to MFJ-993B, but only 200W, without cross-needle instrument.

Order No.
MFJ-929 249.00 € Buy now
MFJ-5114I Control cable for Icom 29.20 € Buy now
MFJ-5114K Control cable for TS-50,450,570,2000 etc. 29.20 € Buy now
MFJ-5114Y Control cable for Yaesu FT-817/857/897/100D 29.20 € Buy now
MFJ-5114Y2 Control cable for Yaesu FT-847 29.20 € Buy now
MFJ-5114I
MFJ-5114I (Icom)
MFJ-5114K
MFJ-5114K (Kenwood)
MFJ-5114Y
MFJ-5114Y (Yaesu)

MFJ-991B automatic antenna tuner 150W

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MFJ-991

Similiar to MFJ-993B, but only 150W PEP SSB; no LC display, no acoustic SWR feedback, no antenna switch, no balun. Impedance range 6 to 3200 Ω.

Order No.
MFJ-991B 276.00 € Buy now
MFJ-5124I Cable for Icom tuner interface 29.20 € Buy now
MFJ-5124K Cable for Kenwood 74.90 € Buy now
MFJ-5124Y Cable for Yaesu 69.00 € Buy now
MFJ-5124Y2 Cable for Yaesu FT-847 69.00 € Buy now
MFJ-5124Y4 Cable for Yaesu FT-2000 39.00 € Buy now

MFJ-994B automatic antenna tuner 600W

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MFJ-994B

Similiar to MFJ-993B, but up to 600W PEP SSB, 300W CW; no LC display, no acoustic SWR feedback, no antenna switch, no balun. Impedance range 12 to 800 Ω.

Order No.
MFJ-994B 399.00 € Buy now
MFJ-5124I Cable for Icom tuner interface 29.20 € Buy now
MFJ-5124K Cable for Kenwood 74.90 € Buy now
MFJ-5124Y Cable for Yaesu 69.00 € Buy now
MFJ-5124Y2 Cable for Yaesu FT-847 69.00 € Buy now
MFJ-5124Y4 Cable for Yaesu FT-2000 39.00 € Buy now

MFJ-998 Automatic Antenna tuner 1500W

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MFJ-998

Similiar to MFJ-993B, but max. 1500W SSB/CW. With cross needle instrument, with LC Display, without balun. Size 33x38x10cm, weight 3.5kg.

Order No.
MFJ-998 749.00 € Buy now
MFJ-5114I Control cable for Icom 29.20 € Buy now
MFJ-5114K Control cable for TS-50,450,570,2000 usw. 29.20 € Buy now
MFJ-5114Y Control cable for Yaesu FT-817/857/897/100D 29.20 € Buy now
MFJ-5114Y2 Control cable for Yaesu FT-847 29.20 € Buy now

MFJ-991B/993/994/998 Comparision

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  MFJ-991B MFJ-929 MFJ-993B MFJ-994B MFJ-998  
Max. Power 150W SSB PEP / 100W CW 200W SSB PEP / 120W CW 300W SSB PEP / 150W CW 600W SSB PEP / 300W CW 150W SSB PEP / 1500W CW  
Impedance range/td> 6- 3200 6 - 1600 6 - 1600 12 - 800 12 - 1600 Ω
Frequency range 1.8 - 30 1.8 - 30 1.8 - 30 1.8 - 30 1.8 - 30 MHz
# of antennas 1x coax or 1x wire 2x coax or 1x coax + 1x wire 2x coax or 1x coax + 1x wire 1x coax or 1x wire 2x coax or 1x wire  
LC Display No Yes Yes No Yes  
Cross needle instrument Yes No Yes Yes Yes  
Audible SWR feedback No Yes Yes No No  
No. of memories 2000 2000 2000 2000 20000  
Remote connector Yes Yes Yes Yes Yes  
Size 254x70x230 165x70x190 254x70x230 254x70x230 330x380x100 mm
Power supply 12V / 1A 12V / 1A 12V / 1A 12V / 1A 12V / 1.3A  
Control cable MFJ-5124x MFJ-5114x MFJ-5124x MFJ-5124x MFJ-5114x  
Price 276.00 249.00 290.00 399.00 749.00  

MFJ-974HB Tuner for symmetrical antennas

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MFJ-974HB

The MFJ-974HB is a true "Balanced Tuner" for symmetrical feeder lines which offers an excellent current balance. Tuning range 12 to 2000Ω, frequency range from 1.8 to 54MHz, of course incl. all WARC bands. Max. power 300W PEP SSB, 150W CW. Tuning is easy with three tuneable elements, selectable circuit "Q" for efficient tuning at high bandwidths or extreme loads. Includes large, backlit cross-needle instrument (selectable 30/300W) which facilitates tuning, it shows SWR, return power and output power. Size 19 x 15 x 20 cm.

The tuner MFJ-974B is similiar to the model MFJ-974HB, but does not support 160m. Tuning frequency range 80m - 6m.

Order No.
MFJ-974HB Balanced Tuner 160-6m 251.00 € Buy now
MFJ-974B Balanced Tuner 80-6m 209.00 € Buy now

MFJ-962D 1500 Watt Tuner with roller coaster coil

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MFJ-962D
This tuner closes the gap between 300W and the large 3KW units.
Tunes 1.8 to 30MHz, roller coaster coil with digital readout, 6 pos. antenna switch, integrated 4:1 balun for symmetrical antennas. Dimensions 25 x 25 x 10cm.


Start now with the usual 100W, upgrade later to a power amplifier but stay with the same tuner. The MFJ-962D tuner takes max. 1500W PEP SSB, offering enough reserves for legal limit use (in EU). A wide matching range allows operation on any shortwave band from 1.8 to 30MHz. Offers an antenna selector for two coax- and one wire-fed antenna, illuminated cross needle instrument. The precisely machine roller coaster coil with digital readout and the two large var. capacitors allow evry fine tuning for best SWR.
Order No.
MFJ-962D 339.00 € Buy now

MFJ-902 compact tuner

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MFJ-902

MFJ-902 compact tuner
Very small tuner without SWR meter, suitable for any rig with built-in SWR meter like IC-706, FT-8x7, FT-100 etc. Tunes 10 to 80m, max. 150W, with bypass switch. Dimensions 112 x 57 x 75mm.

Order No.
MFJ-902 107.70 € Buy now

MFJ-904H Compact tuner with SWR meter

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The MFJ-904H is the same as the MFJ-902 but includes a Cross-Needle SWR/Wattmeter and 4:1 balun for balanced lines and random wire. Cross-Needle meter shows SWR, forward, and reflected power all at a glance. Push button selects forward/reflected power in 300/60 and 30/6 Watt ranges. Measures a compact 7¼ x 2¼ x 2¾ inches.


Order No.
MFJ-904H 162.00 € Buy now

MFJ 949 E / MFJ 948 - our bestsellers!

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MFJ-948

MFJ-948
MFJ-949E

MFJ-949E

300 Watt PEP, 300 Watt dummy load integrated.Cross needle instrument show forward and reflected power. Diemensions: 27 x 9 x 18cm

Order No.
MFJ-949E 209.00 € Buy now
MFJ-948 like MFJ949E but without dummy load 179.00 € Buy now

MFJ- 941E - worldwide bestseller

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Bild MFJ-941E

MFJ-941E

300W PEP, two position antenna selector, integrated 4:1 balun for parallel wire feed. Includes cross needle meter! Dimensions 27 x 7.5 x 18m


Order No.
MFJ-941E 179.00 € Buy now

MFJ-945E - Mobile tuner- incl. 6 m Band

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MFJ-945E

MFJ-945E

300 Watt PEP, very small: 20 x 5 x 15cm. Built-in cross needle instrument, low losses due to use of an aircore coil.

Order No.
MFJ-945E 149.00 € Buy now

MFJ 971 - portable tuner 1,8 - 30 MHz

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MFJ-971

Similiar to MFJ-945, but with additional 4:1 balun for symmetrial antennas, but without bypass switch. Very compact size 15 x 18 x 6.5cm. Max. 300W PEP, instrument power range selectable 30/300W. Internally selectable to 6W for QRP operations. Illuminated cross needle instrument.

Order No.
MFJ-971 153.00 € Buy now

MFJ 986

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MFJ-986

3KW tuner with aircore roller coaster coil. Cross needle instrument with PEP display. New type of differential var. capacitor, for very fast tuning. Six position antenna selector. With integrated balun 4:1.

Order No.
MFJ-986 415.00 € Buy now

MFJ 914 - Auto-Tuner Extender

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MFJ-914

Very useful product for rigs with built-in tuner. Most recent transceiver do have a built-in tuner, but those offer only a limited impedance range. This is where the MFJ-914 comes in. With the use of this tuner extender the impedance matching range is increased 10-fold, allowing to match nearly any antenna. No more problems due to component failures of the internal tuner. The "Off" Switch switches the antenna to ground and the transceiver to the external (optional) dummy load. Works on shortwave from 160 to 10m, max. 300W.

Order No.
MFJ-914 91.30 € Buy now

MFJ 16010 longwire tuner

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MFJ-16010

Matches nearly any wire, with max. 200W PEP. Translates high-z to low-z or vice versa by reversing the unit. Small dimensions: 5 x 7.5 x 5cm, also very useful for receiving-only antennas.

Order No.
MFJ-16010 79.00 € Buy now

MFJ 989 D

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MFJ-989D

1.5kW SSB PEP tuner, improved with new aircore roller coaster coil. Built-in 300W dummy load, six position antenna selector. Even 6kV HF voltage does not bother this monster tuner. Integrated 3KW balun for parallel wire feeds.

Order No.
MFJ-989D 460.00 € Buy now

MFJ-969 Versa Tuner II

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MFJ-969

300 Watt PEP, 8 way antenna switch integrated cross needle instrument, integrated dummy load, with balun 4:1 for parallel wire feeds. Instrument selectable for peak/average power measurement

Order No.
MFJ-969 296.50 € Buy now

MFJ 931 - Artificial ground

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MFJ-931

The solution for insufficient grounding in the shack.
Transforms the present system into a nearly perfect ground system. Even if no grounding at all is available you can just lay out a wire. Useful against BCI/TVI or with 'hot' chassis. Useful when your shack has a very long connection to a ground system.
The MFJ-931 is installed between your rig and a ground feed and tuned to maximum ground current on the operating frequency. Frequency range 1.8 to 30MHz, dimensions 18 x 18 x 8cm.

Order No.
MFJ-931 122.00 € Buy now

MFJ-1048 Pre-Selector

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Passive Preselector with high dynamic range! It improves the performance of nearly any HF or shortwave receiver/transceiver. It vastly improves the most expensive receivers. Especially helpful to those with broadband front-ends that are prone to overload. Protects your sensitive receiver input from damage (including switching diodes and attenuator resistors) caused by very strong signals from multi-transmitter, multi-band operation -- contests, field day, nearby hams, CBers, TV/FM/AM stations.
It eliminates phantom signals by suppressing strong out-of-band signals that cause intermod, blocking and cross modulation. Completely eliminates second order intermod problems caused by strong out-of-band shortwave broadcast signals mixing and producing unwanted in band signals.
Has narrow bandwidth, excellent stopband attenuation, low loss, constant bandwidth and gain over each band. Excellent attenuation in adjacent contest bands.
The entire 1.6 to 33 MHz HF band is covered in five overlapping bands. An RF sense transmit/receiver switch with adjustable time delay automatically bypasses your MFJ-1048 when you transmit. Also has PTT line T/R switching. Plugs between antenna and transceiver. Fully shielded metal enclosure. Tough black finish.

Order No.
MFJ-1048 163.00 € Buy now