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MFJ 2 MFJ939I
[MFJ939I]

$179.95
Free Shipping on MFJ939I
Free shipping to USA Only

PLUG AND PLAY AUTO TUNER FOR ICOM

This item is currently out of stock.


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.

Optional Accessories

JETSTREAM JUMPER1A1 FT COAX JUMPER $ 11.95Buy JUMPER1A
JETSTREAM JUMPER2A2 FT COAX JUMPER $ 12.95Buy JUMPER2A
JETSTREAM JUMPER3A3 FT COAX JUMPER $ 12.95Buy JUMPER3A
MFJ MFJ131612 vdc 1.5 AMP POWER SUPPLY $ 27.95Buy MFJ1316
MFJ MFJ5114AINTERFACE CABLE FOR ALINCO $ 32.95Buy MFJ5114A
MFJ 2 MFJ5114IINTERFACE CABLE FOR ICOM $ 33.95Buy MFJ5114I
MFJ MFJ5114KINTERFACE CABLE FOR KENWOOD $ 33.95Buy MFJ5114K
MFJ MFJ5114YINTERFACE CABLE FOR YAESU 100,450,857,897,950 $ 33.95Buy MFJ5114Y
MFJ MFJ5114Y3INTERFACE CABLE FOR YAESU 1000MP,2000,9000 $ 32.95Buy MFJ5114Y3
MFJ MFJ5114Y4INTERFACE CABLE FOR YAESU 2000 $ 32.95Buy MFJ5114Y4
PLUG AND PLAY AUTO TUNER FOR ICOM HF AUTOMATIC Coupler ANTENNA TUNER

 

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