0 items

Secure Checkout
All CategoriesNEW PRODUCTS!ANTENNASCABLESANTENNA ACCADAPTORREMOTE SHACK

Product Search
Site Menu

Sister Companies

Company News
Shelby, NC HAMFEST
Sept 5th & 6th, 2015

** NEW FEATURED PRODUCTS **
MFJ-226
1-230 MHZ ANTENNA EXPERT TIMES GRAPHIC ANALYZER

$ 339.95 each


Graphical Impedance Antenna Analyzer Review/Demo

MFJ VNA Antenna Analyzer covers 1 to 230 MHz, 1Hz resolution.

•Frequency sweep plots: SWR, Impedance, Resistance, Reactance,Phase Angle, Complex Return Loss, Smith Chart
•Sign of reactance
•Amazing accuracy with OSL(Open-Short-Load) calibration.

New MFJ-226 introduces the MFJ Times Technology series of advanced Antenna Analyzers!

This groundbreaking VNA antenna analyzer -- MFJ-226 Antenna Expert -- delivers OSL calibration and true reactance including its sign from 1 MHz to 230 MHz with 1-Hz frequency resolution!

Incredibly Powerful MFJ-226 is the first and only low-cost handheld VNA(Vector Network Analyzer) to feature OSL(open/short/load) calibration for super accuracy and sign of reactance to positively identify inductive or capacitive reactance.

These two features, normally only found on lab instruments, place incredible diagnostic power in the palm of your hand.

With it, you`ll measure impedance plus many other critical load parameters directly or through a feed-line or test cable with exceptional accuracy, correcting for line loss and phase angle.

Single Frequency Mode
Presents an unusually wide range of load information including . . .
SWR
Frequency
Impedance Magnitude
Series and Parallel Impedance (R±jX)
S11 (Rectangular and Polar)
Capacitance
Inductance

Swept-Frequency Mode
Generates, displays, captures accurate plots versus frequency of
SWR
Impedance (Z)
Resistance (R)
Reactance (±X)
Return Loss (S11)
Phase Angle
Smith Chart
SmithChart plot shows S11 magnitude and phase angle over any frequency span you specify.

32 Memories
32 memories let you capture screens made in the field for download into your PC via mini USB port for later storage and use.

Store OSL Calibrations
You can run OSL calibrations through your test cable or feed-line or at different frequencies and store them for future use.

Fits Your Hand Perfectly
Better doesn`t mean bigger! The MFJ-226`s compact and virtually indestructible molded case fits your hand perfectly with real back-lit keys that depress to give you tactile feedback.

Easy-to-read Backlit LCD
Bright 2 1/2 inch LCD backlit screen is easy-to-read, even in direct sunlight.

Use two AA batteries
Use disposable Alkaline or rechargeable NiMH AA batteries (not included).
Firmware upgradeable via USB port.
Includes N-to-SO-239 adapter and 48-inch mini USB to USB cable.

3 1/4W x 6 1/2H x 1D inches.
9.3 ounces.

Looks, Feels, Performs Like a Professional Instrument

MFJ-226 has both the hefty feel and advanced performance of a professional field-service instrument costing hundreds or even thousands of dollars more.

If you`ve ever wished for the accuracy and flexibility of a professional-grade S11 VNA without the boat-anchor packaging and prohibitive price, your search ends here. The MFJ-226 pulls together the latest advances in RF technology and delivers them to you at a price you can`t afford to pass up!



MFJ-939I
PLUG,PLAY,200W AUTOTUNER, HF,W/CABLE,ICOM


$ 159.95 each


Plug & Play Auto Tuner

Plug & Play! You won’t even know it’s there . . . MFJ-939I/K/Y automatically tunes your antenna as you tune your radio. SWR is just always low.

Tunes your coax fed or random wire antennas 1.8-30 MHz from 2 Watts QRP to full 200 Watts SSB/CW.

Matches 6-1600 Ohms (SWR up to 32:1) -- that’s a 50% wider matching range than competing products that are less capable and higher priced . . . and it’s made in the USA.

Highly intelligent, ultra-fast tuning!
As you’re ragchewing, contesting or DXing, the MFJ-939 is learning your antenna and the way you operate and storing all this in its 20,000 memories. The more you use it, the more it learns.

Measure & Compute = Instant Match
MFJ-939 uniquely measures your antenna’s complex impedance (R, X), computes the L-network and snaps in needed components for instant matching.

AdaptiveSearch
AdaptiveSearch determines a sub-set of all solutions that can provide a safe match and searches only that subset giving
you an ultra fast match. Others search slowly through all solutions.

InstantRecall
InstantRecall first checks its memory to see if you have operated this frequency before. If so, tuning is instantaneous and you’re ready to go!

MFJ VirtualAntenna Memory
MFJ exclusive VirtualAntenna Memory system gives you 8 antenna memory banks of 2500 memories each.
You can use an antenna switch to select up to 8 antennas and assign each antenna its own 2500 memories!

4 Times More Solutions and Faster!
MFJ has 256 values each of capacitance and inductance for 131,072 matching solutions giving you a finely tuned very low SWR. That`s 4 times the 32,768 solutions of competitors using only 128 L/C values each!
Don`t be fooled by competing products claiming fast search times -- if you have a quarter of the matching solutions, of course,it takes less time to finish but it`s not faster.
MFJ`s faster speed comes from advanced technology and software algorithms not from fewer solutions.

Audio SWR Meter
An Audio SWR meter beeps when SWR <1.5, 2, 2.5, 3. Alarms if >3. Audible & Visible Diagnostic messages.

Heavy-Duty Components
Heavy-duty L-network: 10 Amp/1000V relays, RF duty silver mica caps won’t burn up. Safe, reliable, continuous 200W SSB/CW.

As Small as Your Radio
Tiny 6 1/2W x 2 7/8H x 8 3/8D”. 2.4 lbs. SO-39s, random wire ant. & gnd posts.

Never Obsolete . . . Super Versatile
Truly Plug & Play! No settings, only one cable to plug in! Order MFJ-939I, Icom; MFJ-939K, Ken; MFJ-939Y, Yaesu. Specify Yaesu: FT-100/450/950/ 857/897/1000MP/9000/2000 or other.

Never Obsolete!

If you get a new transceiver, simply order a new Plug and Play cable.

Super Versatile! Works with ALL older rigs, classic transmitters, Flex, Elecraft, Tentec, QRP, others. Auto tune antenna -- touch tune button on any MFJ-939I/K/Y for any rig.

2-Year NoMatterWhatWarranty









MFJ-259C
HF/VHF/220 MHZ, .53-230 MHZ, SWR ANALYZER


$ 299.95 each
MFJ-259C 530 KHz - 230 MHz SWR Analyzer
World’s most popular SWR analyzer is super easy-to-use



The famous MFJ-259C gives you a complete picture of your antenna’s performance. You can read your antenna’s SWR and Complex Impedance 530 KHz to 230 MHz continuously with no gaps.

You can read Complex Impedance as series resistance and reactance (R+jX) or as magnitude (Z) and phase (degrees).

Determine velocity factor, coax loss in dB, coax length and distance to a short/open.

Read SWR, return loss and reflection coefficient at any frequency simultaneously.

You can read inductance in uH and capacitance in pF at RF frequencies.

Large easy-to-read two line LCD screen and side-by-side analog meters clearly display your information.

Built-in frequency counter, Ni-MH/Ni-CD charger circuit, battery saver, low battery warning and smooth reduction drive tuning.

Super easy to use! Just set the bandswitch and tune the dial -- just like your transceiver. SWR and Complex Impedance are displayed instantly!

Here’s what you can do

Find your antenna’s true resonant frequency. Trim dipoles and verticals.

Adjust your Yagi, quad, loop and other antennas, change antenna spacing and height and watch SWR, resistance and reactance change instantly. You’ll know exactly what to do by simply watching the display.

Perfectly tune critical HF mobile antennas in seconds for super DX -- without subjecting your transceiver to high SWR.

Measure your antenna’s 2:1 SWR bandwidth on one band, or analyze multiband performance.

Check SWR outside the ham bands without violating FCC rules.

Take guesswork out of building and adjusting matching networks and baluns.

Accurately measure distance to short or open in failed coax. Measure length of a roll of coax, coax loss, velocity factor and impedance.

Measure inductance, capacitance. Troubleshoot and measure resonant frequency, Q of traps, stubs, transmission lines, chokes, tuned circuits, baluns.

Adjust your antenna tuner for a perfect 1:1 match without creating QRM.

MFJ-259C is a complete ham radio test station with frequency counter, RF signal generator, SWR/Resistance/Reactance/Coax Analyzer, Capacitance/Inductance Meter and much more!

Use 10 AA or Ni-MH batteries (not included) or 110 VAC with optional MFJ-1312D.

Compact 4W x 6 3/4H x 2D inches


MFJ-949E
TUNER, 300W, 1.8-30 MHZ, PEAK CROSS METER, DL,


$ 189.95 each
More Hams use MFJ-949s than any other antenna tuner in the world! Why? Because the worlds leading antenna tuner has earned a worldwide reputation for being able to match just about anything.

Full 1.8-30MHz Operation
Custom designed inductor switch, 1000 volt tuning capacitors, Teflon insulation washers and proper L/C ratio gives you arc-free no worries operation with up to 300 Watts 1.8 to 30 MHz.

Tunes any Antenna
Tunes out SWR on dipoles, verticals, inverted vees, random wires, beams, mobile whips, shortwave receiving antennas.... Nearly anything! Use coax, random wire or balanced lines. Has heavy duty 4:1 balun.

Custom Inductor Switch
The inductor switch is the most likely component to burn up in any antenna tuner. MFJs inductor switch in the MFJ-949E was custom designed to withstand the extremely high RF voltages and currents that are developed in your tuner.

8 Position Super Antenna Switch
Lets you select two coax fed antennas, random wire/balanced line or built-in dummy load through your MFJ-949E or direct to your transceiver.

More hams use MFJ-949s than any other antenna tuner in the world!
Has MFJs full size 3 inch lighted Cross Needle Meter (not a puny "meter" you cant read). Lets you easily read SWR, true peak forward and average reflected power simultaneously on 300 Watt or 30 Watt ranges. Lamp has on/off switch, requires 12 VDC or 110 VAC with MFJ-1312D, $14.95

QRM-Free PreTune
MFJs QRM-Free PreTune lets you pre-tune your MFJ-949E off-the-air into its built-in dummy load! Makes tuning your actual antenna faster and easier.

Plus much more!
Full size built-in non-inductive 50 Ohm dummy load, scratch-proof Lexan multi-colored front panel, superior cabinet and construction and more!


MFJ-4225MV
SWITCHING POWER SUPPLY, 25 AMPS


$ 99.95 each
MFJs new MFJ-4225MV Voltage Switching Power Supplies do it all! Power your HF or 2M/440 MHz radio and accessories.

MFJs MightyLites Switching Power Supplies are so light and small you can carry them in the palm of your hand! Take them with you anywhere. No more picking up and hauling around heavy, bulky supplies that can give you a painful backache, pulled muscle or hernia. MFJs 25 Amp MightyLite weighs just 4.2 lbs. -- thats 5 times lighter than an equivalent conventional power supply.

No RF Hash!
These babies are clean... Your buddies wont hear any RF hash on your signal! None in your receiver either! Some competing switching power supplies generate objectionable RF hash in your transmitted and received signal. These super clean MFJ MightyLites Switching Power Supplies meet all FCC class B regulations.

Low Ripple...Highly regulated
Less than 35mV peak-to-peak ripple under 25 amp full load. Load regulations is better than 1.5% under full load.

Fully protected
You wont burn up our power supplies! They are fully protected with Over Voltage and Over Current protection circuits.

Worldwide Versatility
MFJ MightyLites Switching Power Supplies can be used anywhere in the world! They have switchable AC input voltage and work from 85 to 135 VAC or 170 to 260 VAC. Replaceable fuse.

MightyLites....Mighty Features
The MFJ-4225MV MightyLite Switching Power Supply feature a front panel voltage control. It lets you vary the output voltage from 9 to 15 volts DC and gives you a highly regulated voltage output -- this includes 12 Volt DC and 13.8 Volt DC!. You get an easy access front panel with five way binding posts for heavy duty use and a cigarette lighter socket for mobile accessories.
Large 3 inch dual meters are brightly illuminated to make it easy to monitor load voltage and current. A whisper quiet internal fan efficiently cools your power supply for long life!

Specifications and Features

25 Amps Surge, 22 Amps Continuous at 13.8 Vdc
Front Panel Adjustable Voltage (9-15 Vdc)
Lightweight, only 4.2 lbs.
Compact, only 5 ¾" W x 4 ½" H x 6" D
Easy access Front Panel Two ways output:

Five-Way binding post for HF/VHF radio
Cigarette Lighter Socket for mobile accessories

Over Voltage Protection
Over Current Protection
Automatic Reset after shutdown
Lighted Dual Meters: Volt-meter and Amp-meter monitor load continuously
Quiet internal Cooling Fan with "Fan On" LED
Input Voltage: Switching AC Input Voltage

110 VAC at 47-62 Hz
220 VAC at 47-63 Hz

Regulation: Works with AC input from 85-135 Vac or from 170-260 Vac


MFJ-4230MV
COMPACT SWITCH PS, METER, 4-16V ADJ. 110/220VAC


$ 89.95 each
This is the world’s most compact switching power supply that also has a meter and adjustable voltage control.



Just 5" W x 2 ½" H x 6" D, it weighs only 3 lbs. -- it is the perfect pack-n-go power supply for field day, DXpeditions, camping, hiking or to pack for your next business trip or vacation to some far away place.

MFJ-4230MV gives you 25 Amps continuously or 30 Amps surge at 13.8 VDC. The voltage is front-panel adjustable from 4 to 16 Volts. MFJ-4230MV also has a selectable input voltage: choose from 120 or 240 VAC at 47 - 63 Hz.

A simple front-panel push-button switch lets you choose either Ampmeter or Voltmeter -- allows you to select Amps or Volts as you wish to read them.

MFJ-4230MV has an excellent 75% efficiency and extra low ripple and noise, < 100 mV. Awhisper-quiet fan cools by convection and forced air cooling.

Normal air-flow around the power supply is continuous and a heat sensor increases the fan speed when the temperature rises above 70 degrees celsius.

DC output is five way binding posts on the back of the MFJ-4230MV so you can power your dedicated HF, VHF or UHF transceiver with ease.

All MFJ switching power supplies are protected by MFJ’s famous NOMatterWhat™ one year limited warranty.

MFJ will repair or replace (at our option) your switching power supply no matter what for one complete year.


MFJ-226
1-230 MHZ ANTENNA EXPERT TIMES GRAPHIC ANALYZER


$ 339.95 each


Graphical Impedance Antenna Analyzer Review/Demo

MFJ VNA Antenna Analyzer covers 1 to 230 MHz, 1Hz resolution.

•Frequency sweep plots: SWR, Impedance, Resistance, Reactance,Phase Angle, Complex Return Loss, Smith Chart
•Sign of reactance
•Amazing accuracy with OSL(Open-Short-Load) calibration.

New MFJ-226 introduces the MFJ Times Technology series of advanced Antenna Analyzers!

This groundbreaking VNA antenna analyzer -- MFJ-226 Antenna Expert -- delivers OSL calibration and true reactance including its sign from 1 MHz to 230 MHz with 1-Hz frequency resolution!

Incredibly Powerful MFJ-226 is the first and only low-cost handheld VNA(Vector Network Analyzer) to feature OSL(open/short/load) calibration for super accuracy and sign of reactance to positively identify inductive or capacitive reactance.

These two features, normally only found on lab instruments, place incredible diagnostic power in the palm of your hand.

With it, you`ll measure impedance plus many other critical load parameters directly or through a feed-line or test cable with exceptional accuracy, correcting for line loss and phase angle.

Single Frequency Mode
Presents an unusually wide range of load information including . . .
SWR
Frequency
Impedance Magnitude
Series and Parallel Impedance (R±jX)
S11 (Rectangular and Polar)
Capacitance
Inductance

Swept-Frequency Mode
Generates, displays, captures accurate plots versus frequency of
SWR
Impedance (Z)
Resistance (R)
Reactance (±X)
Return Loss (S11)
Phase Angle
Smith Chart
SmithChart plot shows S11 magnitude and phase angle over any frequency span you specify.

32 Memories
32 memories let you capture screens made in the field for download into your PC via mini USB port for later storage and use.

Store OSL Calibrations
You can run OSL calibrations through your test cable or feed-line or at different frequencies and store them for future use.

Fits Your Hand Perfectly
Better doesn`t mean bigger! The MFJ-226`s compact and virtually indestructible molded case fits your hand perfectly with real back-lit keys that depress to give you tactile feedback.

Easy-to-read Backlit LCD
Bright 2 1/2 inch LCD backlit screen is easy-to-read, even in direct sunlight.

Use two AA batteries
Use disposable Alkaline or rechargeable NiMH AA batteries (not included).
Firmware upgradeable via USB port.
Includes N-to-SO-239 adapter and 48-inch mini USB to USB cable.

3 1/4W x 6 1/2H x 1D inches.
9.3 ounces.

Looks, Feels, Performs Like a Professional Instrument

MFJ-226 has both the hefty feel and advanced performance of a professional field-service instrument costing hundreds or even thousands of dollars more.

If you`ve ever wished for the accuracy and flexibility of a professional-grade S11 VNA without the boat-anchor packaging and prohibitive price, your search ends here. The MFJ-226 pulls together the latest advances in RF technology and delivers them to you at a price you can`t afford to pass up!



MFJ-269CPRO
HF/VHF/UHF SWR ANALYZER, .530-230 MHZ,430-520


$ 429.95 each
MFJ-269CPro Like MFJ-269C, but has its UHF range coverage 430 to 520 MHz and an extended commercial-style cabinet for lab work (helps protect knobs and connectors from damage.

530KHz-230MHz plus 415-470MHz HF/VHF/UHF SWR Analyzer

Covers 530 KHz-230 MHz and 415-470 MHz . . . SWR . . . Complex RFImpedance: Resistance(R)
and Reactance(X) or Magnitude(Z) and Phase(degrees) . . . Coax cable loss(dB) . . . Coax cable
length and Distance to fault . . . Return Loss . . . Reflection Coefficient . . . Inductance . . . Capacit-
ance . . . Battery Voltage. LCD digital readout . . . frequency counter . . . side-by-side meters . . . Ni-
MH/Ni-Cad charger circuit . . . battery saver . . . low battery warning . . . smooth reduction drive . . .

MFJ-269C covers 530KHz to 230 MHz and 415 to 470 MHz -- an MFJ-269C exclusive! Includes all the features of MFJ-259C, the world’s most popular SWR Analyzer plus much more!

Large easy-to-read two line LCD display and side-by-side meters clearly display your
information. Built-in Ni-Cad/Ni-MH charger circuit, battery saver, low battery warning, smooth reduction drive tuning.Use as signal source for testing/alignment.

Built-in CoaxCalculator -- calculates coax line length in feet given coax length in electrical degrees and vice versa for any frequency and any velocity factor (great for building matching sections and phasing lines) -- an MFJ-269C exclusive!

New 12-bit A/D converter gives much better accuracy and resolution than common 8-bit A/D converters -- an MFJ-269C exclusive!

Super easy to use! Just set the bandswitch and tune the dial -- just like your transceiver.

530 KHz to 230 MHz Range Features

MFJ-269C gives you a complete picture of your antenna. Read antenna SWR and Complex Imped-ance 530 KHz to 230 MHz. Built-in frequency counter.

Lower band is retuneable to cover 470-940 KHz for maritime and 600 Meters.

Read Complex Impedance as series equivalent resistance and reactance (Rs+jXs) or as magnitude (Z) and phase (degrees).

Also reads parallel equivalent resistance and reactance (Rp+jXp) --MFJ-269C exclusive!

Determine velocity factor, coax loss in dB, length of coax and distance to short/open in feet.

Read SWR, return loss and reflection coefficient at any frequency simultaneously at a single glance. Also reads match efficiency.

Also read inductance in uH and capacitance in pF at RF frequencies.

Measure SWR and loss of coax with any characteristic impedance, 10 to over 600 Ohms, including 50, 51, 52, 53, 73, 75, 93,95,300,450 Ohms -- MFJ-269C exclusive!

415 to 470 MHz Range features

Just plug in your UHF antenna coax, set the frequency and read SWR, return loss and reflection coefficient simultaneously. You can read coax cable loss in dB and match efficiency.

You can adjust UHF dipoles, verticals, yagis, quads and other antennas and determine their SWR, resonant frequency and bandwidth.

You can test and tune stubs and coax lines. You can manually determine velocity factor and impedances of transmission lines.

Adjust and test RF matching networks and RF amplifiers without applying power.

Has easy-to-read LCD logarithmic SWR bargraph and SWR meter for quick tuning.

Take it anywhere

Fully portable, take it anywhere -- on remote sites, up towers, on DX-peditions.

Has built-in “N-type” connector.

Includes Free N-to-SO-239 adaptor.

Use 10 AA Ni-MH or Ni-Cad or alkaline batteries (not included -- alkalines cannot be charged internally) or 110-240 VAC with optional MFJ-1312D.

Compact 4W x 2D x 6 3/4H inches.

Maritime and 600 Meter Coverage


MFJ-269C
HF/VHF/220MHZ/UHF,.530-230,415-470MHZ,SWR ANALYZER


$ 399.95 each
530KHz-230MHz plus 415-470MHz HF/VHF/UHF SWR Analyzer

Covers 530 KHz-230 MHz and 415-470 MHz . . . SWR . . . Complex RFImpedance: Resistance(R)
and Reactance(X) or Magnitude(Z) and Phase(degrees) . . . Coax cable loss(dB) . . . Coax cable
length and Distance to fault . . . Return Loss . . . Reflection Coefficient . . . Inductance . . . Capacit-
ance . . . Battery Voltage. LCD digital readout . . . frequency counter . . . side-by-side meters . . . Ni-
MH/Ni-Cad charger circuit . . . battery saver . . . low battery warning . . . smooth reduction drive . . .

MFJ-269C covers 530KHz to 230 MHz and 415 to 470 MHz -- an MFJ-269C exclusive! Includes all the features of MFJ-259C, the world’s most popular SWR Analyzer plus much more!

Large easy-to-read two line LCD display and side-by-side meters clearly display your
information. Built-in Ni-Cad/Ni-MH charger circuit, battery saver, low battery warning, smooth reduction drive tuning.Use as signal source for testing/alignment.

Built-in CoaxCalculator -- calculates coax line length in feet given coax length in electrical degrees and vice versa for any frequency and any velocity factor (great for building matching sections and phasing lines) -- an MFJ-269C exclusive!

New 12-bit A/D converter gives much better accuracy and resolution than common 8-bit A/D converters -- an MFJ-269C exclusive!

Super easy to use! Just set the bandswitch and tune the dial -- just like your transceiver.

530 KHz to 230 MHz Range Features

MFJ-269C gives you a complete picture of your antenna. Read antenna SWR and Complex Imped-ance 530 KHz to 230 MHz. Built-in frequency counter.

Lower band is retuneable to cover 470-940 KHz for maritime and 600 Meters.

Read Complex Impedance as series equivalent resistance and reactance (Rs+jXs) or as magnitude (Z) and phase (degrees).

Also reads parallel equivalent resistance and reactance (Rp+jXp) --MFJ-269C exclusive!

Determine velocity factor, coax loss in dB, length of coax and distance to short/open in feet.

Read SWR, return loss and reflection coefficient at any frequency simultaneously at a single glance. Also reads match efficiency.

Also read inductance in uH and capacitance in pF at RF frequencies.

Measure SWR and loss of coax with any characteristic impedance, 10 to over 600 Ohms, including 50, 51, 52, 53, 73, 75, 93,95,300,450 Ohms -- MFJ-269C exclusive!

415 to 470 MHz Range features

Just plug in your UHF antenna coax, set the frequency and read SWR, return loss and reflection coefficient simultaneously. You can read coax cable loss in dB and match efficiency.

You can adjust UHF dipoles, verticals, yagis, quads and other antennas and determine their SWR, resonant frequency and bandwidth.

You can test and tune stubs and coax lines. You can manually determine velocity factor and impedances of transmission lines.

Adjust and test RF matching networks and RF amplifiers without applying power.

Has easy-to-read LCD logarithmic SWR bargraph and SWR meter for quick tuning.

Take it anywhere

Fully portable, take it anywhere -- on remote sites, up towers, on DX-peditions.

Has built-in “N-type” connector.

Includes Free N-to-SO-239 adaptor.

Use 10 AA Ni-MH or Ni-Cad or alkaline batteries (not included -- alkalines cannot be charged internally) or 110-240 VAC with optional MFJ-1312D.

Compact 4W x 2D x 6 3/4H inches.

Maritime and 600 Meter Coverage


MFJ-4416B
BATTERY VOLTAGE BOOSTER, 12V


$ 159.95 each
Keeps your transceiver operating at full efficiency and performance by
eliminating low or marginal voltages in the mobile environment . . .

Today`s compact 100-watt HF transceivers are designed to operate from about 12-16 volts, with output signal distortion, output power problems, and transceiver reset often occurring when voltage drops below 12 volts.

In the mobile environment, low voltage is caused in two ways: First - even low
resistance DC wiring can result in a noticeable voltage drop. For a 100-watt transceiver with a 20-amp typical current requirement, just 1/10th of an ohm resistance in your DC cable and connectors results in a 2-volt drop! And second - when you turn your car off, the battery voltage drops from around 13.8
volts to close to 12 volts after a short period of time. Couple this with any voltage drop in the cables, and you have a problem.

The MFJ-4416 Super Battery Booster eliminates low voltage problems by boosting
input voltages as low as 9 volts up to the desired 13.8 volts at up to 25 amps peak with a typical efficiency of close to 90%.

It is compact at just 7 3/4W x 4H x 2 1/8D” and lightweight at 1.3 lbs. And the MFJ-4416 Super Battery Booster is designed to be rugged, reliable, and easy to
use.

MFJ-4416 includes Anderson PowerPoleTM connectors and high-current 5-way binding posts for both the DC input and regulated output. An internal 30-amp
input fuse protects the unit from excess output current demands.

There are also selectable limits on the minimum voltage that the unit will accept: 9-volts, 10-volts (default), and 11-volts. This protects you from over-discharging a battery and possibly damaging it. MFJ-4416 also includes output over-voltage crow-bar protection should regulation be lost.

Two additional features offer ways to increase efficiency even more! First, there is an RF sampling port which can be connected to your transceiver`s transmission line with an MFJ-7733 UHF-T connector. When this feature is enabled, the MFJ-4416 is bypassed unless RF is sensed so no regulator switching efficiency penalties are incurred during receive.

The second efficiency enhancement feature is a user-adjustable output voltage control which lets you set the output voltage anywhere between 12- and 13.8-volts. When setting the output at 12-volts, input voltages greater than 12V will pass through, but the efficiency of the regulator is higher. And lower input voltage means your transceiver will run cooler!

Typically save over 30 watts in heat dissipation during transmit, and even 3-4 watts during receive. So it can actually be good to let the voltage sag to 12 volts, then let the MFJ-4116 protect you from lower voltages.


DOWNLOAD
Your New MFJ 2015
Ham Radio Catalog

HERE!

140 Pages of MFJ, Ameritron, Hygain, Cushcraft, Mirage and Vectronics Products!

REQUEST PRINT CATALOG!


MFJ-929
200W AUTO TUNER, LCD/MTR, 1.8-30MHZ


$ 229.95 each
The MFJ-929 IntelliTuner-Compact™ lets you automatically tune any coax fed or random wire antenna 1.8 - 30 MHz at full 200 Watts SSB/CW. It can match 6-1600 Ohms (SWR up to 32:1) - thats a 50% wider matching range at a higher power level than lesser competing products.

You get a digital SWR/Wattmeter with backlit LCD, antenna switch for 2 antennas, built-in radio interface and built-in internal BiasTee for remote tuner operation.

MFJs exclusive IntelliTune™, Adaptive Search™ and InstantRecall™ algorithms give you ultra-fast automatic tuning with over 20,000 VirtualAntenna™ Memories.

MFJ VirtualAntenna™ Memory

MFJ new VirtualAntenna™ Memory system gives you 4 antenna memory banks for each of 2 antenna connectors. You can select up to 4 antennas on each antenna connector. Each antenna has 2500 memories.

4 Times the Solutions!

MFJ-929 gives you 256 values each of capacitance and inductances for 131,072 matching solutions. Thats 4 times the 32,768 matching solutions of competing products with only 128 L/C values each!

Highly intelligent, ultra-fast tuning!

Don`t be fooled by competing products claiming fast search times -- if you have a quarter of the matching solutions, of course, it takes less time to finish but its not faster.

MFJ`s faster speed comes from advanced technology and software algorithms not from fewer matching solutions.

MFJ`s IntelliTuner-Compact™ actually measures complex impedance -- R and X --of your antenna, computes the L-network values needed and snaps in those components to give you an instant match.

If the load is out of measurement range, AdaptiveSearch™ determines the smaller sub-set from all solutions that can match a safe load -- and then searches only that subset -- others search through far more solutions.

Digital LCD SWR/Wattmeter

An easy-to-read, two-line, 16-character backlit LCD displays SWR, peak or average forward/reflected power, frequency, antenna 1 or 2, L/C tuner values, on/off indicators and other info. They are selected from easy-to-understand menus; not complex combinations of buttons you can`t remember.

A fast-response, high-resolution bargraph gives you an auto-ranging 20/200 Watt power meter. You get 60 segments each for forward and reflected power and 36 segments for SWR -- try that with an 8 segment bargraph that makes you change power ranges and doesn’t even give you reflected power!

You can read inductance and capacitance directly in uHy and pF. This turns you into an expert L-network designer! Match your load, read the resulting L/C values, then use them to build your fixed L-network.
Or, knowing the L/C values you can determine R and X of the load impedance.

StickyTune™ mode gives you one-hand tuning by locking the TUNE button; just transmit to tune regardless of SWR.


Has audio SWR meter and audio feed back. Competing products don`t. Built-in 50 MHz frequency counter. Its built-in radio interface lets you use a simple wire cable to compatible rigs. Others require a cable with expensive electronics. Binding post for random wire. Self-test. Highly efficient L-network. 10 Amp/1000V relays, RF duty silver mica capacitors.

6 ½" x 2 ¾" x 7 ½". 2.4 lbs. 12-15 VDC/ 1 Amp or 110 VAC with MFJ-1316.

Autotuner Interface Cables
MFJ-5114AMost Alinco
MFJ-5114KMost Kenwood
MFJ-5114IMost Icom
MFJ-5114YMost Yaesu
MFJ-5114Y2Yaesu FT-847 (MFJ-92X models only)
MFJ-5114Y3Yaesu FT-1000MP/2000/9000
MFJ-5114Y4Yaesu FT-2000 (through TX REQ input)


MFJ-993B
DUAL POWER AUTO TUNER, 300/150W, 1.8-30MHZ


$ 269.95 each
MFJ IntelliTuner Automatic Tuner



Automatically tunes unbalanced/balanced antennas . . .Ultra fast . . . New 20,000 memories . . . Antenna Switch . . . Efficient L-network . . . Select 300 Watts (6-1600 Ohms) or 150 Watts (6-3200 Ohms) . . . 1.8-30 MHz . . . 4:1 current balun . . . Cross-Needle and Digital SWR/Wattmeter . . . Audio SWR meter . . . Backlit LCD . . . Remote control port . . . Radio interface . . .

World’s First dual power level 300/150 Watts SSB/CW Tuner --

Select 300 Watt SSB/CW power level and match 6-1600 Ohm antennas Or . . . select 150 Watt SSB/CW power level and match extra wide-range 6-3200 Ohms!

The MFJ-993B IntelliTuner lets you tune any antenna automatically balanced or
unbalanced -- ultra fast.

It’s a comprehensive automatic antenna tuning center complete with SWR/Wattmeter, antenna switch for two antennas and 4:1 current balun for balanced lines.

MFJs exclusive IntelliTuner, Adaptive Search and InstantRecall algorithms
give you ultra fast automatic tuning with over 20,000 VirtualAntenna Memories.

You get a highly efficient L-network, 6-1600 ohm matching at 300 Watts SSB/CW
or extra-wide 6-3200 Ohm matching at 150Watts SSB/CW, 1.8-30 MHz coverage, Cross-Needle and digital meters, audio SWR meter, backlit LCD, remote control port, radio interface, heavy-duty 16 amp/1000V relays.

It learns while you’re having fun
As you’re ragchewing, contesting or DXing, your MFJ-993B is learning!

When you transmit, the MFJ-993B automatically tunes for minimum SWR and remembers your frequency and tuner settings. The next time you operate on that
frequency and antenna, these tuner settings are instantly restored and you’re ready to operate in milliseconds!

MFJ new VirtualAntenna Memory system gives you 4 antenna memory banks for each
of 2 antenna connectors. Select up to 4 antennas on each antenna connector. Each antenna has 2500 memories, 20,000 total.

Intelligent ultra fast tuning

MFJs InstantRecallTM first checks its memory to see if you have operated this frequency before. If so, tuning is instant-aneous and you’re ready to operate.

If not, MFJs IntelliTuner algorithm - - based on MFJ s famous SWR Analyzer
technology - - kicks in. It measures the complex impedance of your antenna. Next, it calculates the components it needs and instantly snaps them in. Then, it fine tunes to minimize SWR -- you’re ready to operate. It’s all done in a fraction of a second.

When the impedance is within its measurement range, the MFJ-993B is the fastest automatic antenna tuner in the world.

If it can’t accurately determine impedance, MFJ’s AdaptiveSearch algorithm
goes into action. Frequency is measured and relevant components values are determined. Only those values are searched for ultra-fast tuning.

For even faster searches, you can set the target SWR to 2 (settable 1.0-2.0).

You can manually tune when you can’t transmit (for listening out of ham bands).

Cross Needle and Digital SWR/Watt Meters

Lighted Cross-Needle and digital meters lets you accurately read SWR, forward and reflected power at a glance.

An audio SWR meter lets you hear the tuned SWR when you can’t see/read meters.
Turn on a highly visible, instant response SWR LCD bargraph when you need it.

Backlit LCD Display

An easy-to-read backlit LCD displays SWR, forward/reflected power, frequency,
antenna 1 or 2, L/C tuner values, on/off indicators and other information.
The MFJ-993B is a compact 10W x 2¾H x 9D inches. Use 12 –15 VDC/1 amp or 110 VAC with MFJ-1316.

Remote Control Plug in the MFJ-993RC, remote control and use your tuner elsewhere remotely.

MFJ-993B Interface Pre-wired Cables

Allows automatic tuning of your MFJ-991B/993B/994B IntelliTuner through radio.

MFJ-5124I ICOM. Supports IC-706, 707, 718, 725, 728, 736, 746, 756, 765, 775, others that support AH-3 or AH-4.
MFJ-5124A ALINCO. Supports DX-70, DX-77 and others.
MFJ-5124K KENWOOD. Supports TS-50S, 450S, 570S, 690S, 850S, 870S, 2000 and others that support AT-300.
MFJ-5124Y YAESU. Supports FT-100D, FT-857, FT-897, others.
MFJ-5124Y2 YAESU FT-847.
MFJ-5124Y3 Supports YAESU FT-1000MP and compatibles.


MFJ-945E
TUNER, HF+6M MOBILE, 300W, XMTR, ANT.BYP


$ 139.95 each
Covers 1.8 to 60 MHZ
New! Now covers 6-meter band and has antenna bypass Switch!

Dont go mobile without it!
Dont leave home without this mobile tuner! Have an uninterrupted trip as MFJ-945E extends antenna bandwidth and eliminates needs to stop, go outside and read just your mobile whip. Handles 300 Watts.

Super Compact Size
The small 8W x 2H x 6D inch black aluminum cabinet uses little room. The Cross-Needle meter shows SWR, forward and reflected power -- at a glance. It reads forward/reflected power in 300/60 and 30/6 Watt ranges. ON/OFF lamp switch. Requires 12 volts for lamp. (MFJ-1312D)

Fast, easy tuning
Convenient placement of controls makes tuning fast and easy while in motion. Antenna switch lets you bypass tuner and still use the SWR/Wattmeter.
Back panel has SO-239 connectors for transmitter and coax and a wing nut post for your ground.

1000 Volt capacitors
Efficient airwound inductor gives you lower losses and more Watts out. 1000 Volt capacitors. Covers 1.8 to 60 MHz. Use it at home in your base station when youre not in your RV, boat or car.

Mobile Mounting Bracket
A mobile mount, MFJ-20 can be purchased as well.






MFJ-269C
HF/VHF/220MHZ/UHF,.530-230,415-470MHZ,SWR ANALYZER
$399.95 each



MFJ-868B
GIANT HF + 6M, SWR/WATTMETER
$149.95 each



MFJ-986
ANTENNA TUNER, 3 KW, 1.8-30 MHZ, ROLLER, METER,ANT
$369.95 each



MFJ-260C
DUMMY LOAD, 300 WATT, 0-650MHZ, DRY
$39.95 each




All information, images, and documents on this website are the sole property of MFJ Enterprises, Inc. Any reuse or redistribution of the contents of this website are strictly forbidden without authorization from MFJ Enterprises, Inc.
Enter your callsign to see if you have an eQSL waiting!