0 items

Secure Checkout

Product Search
Site Menu

Sister Companies

Associated Companies


LOOP TUNER, 3.5-30 MHZ, 150W

Click Image For Larger Picture

$ 189.95 Each

MFJ-933 DownloadsView Product Review(s)Submit A Review

MFJ Small, high efficiency Loop Tuners™

Click here to read Phil Salas review of the MFJ-936B, MFJ-935B, and MFJ-933.

Drape a wire around a bookcase or window and attach both ends to this new MFJ Small Loop Tuner™. It instantly turns into a small, high efficiency multi-band transmitting loop antenna! You can operate 5.3 to 30 MHz with a full 150 Watts. No ground, radials or counterpoises needed.

The excellent performance of a high-efficiency small loop antenna is legendary and well proven by users all over the world. You’ll radiate a low angle DX signal that literally rivals full size dipoles and work incredible DX!

It’s a very quiet receiving antenna; you’ll hardly notice static crashes. Its high-Q reduces QRM, overloading, harmonics. It’s perfect for apartments, antenna restricted areas and portable operation.

A 13 foot wire formed into a loop operates 30-20 Meters (4 foot for 17-10 M; 7 foot for 20-15 M; 28 foot for 60-40 M). You can tune any shape loop; circle, square, rectangle, any odd shape. A quarter wavelength wire shaped as a circle is the most efficient.

A given wire length covers about 1.5 to 1 frequency range (i.e. 7-10 / 18-28 MHz, etc.). Exact frequency coverage depends on wire length, loop shape, surroundings and height above ground. Has MFJ low loss Butterfly loop tuning capacitor, no rotating contacts. Easy-Carry handle. Mount for PVC Cross on cover.

See June, 1986, QST or recent ARRL Antenna Handbook for more details on small, high efficiency loops.

MFJ-936B - For home/portable stations. Has relative RF antenna current meter with sensitivity control and 30/300 Watts Cross-Needle SWR/Wattmeter.
9 ¼" x 5 ½" x 9 ½".

MFJ-935B - For home/portable stations. Smaller and lighter than the MFJ-936B. Relative RF current meter with sensitify control.
6 ¼" x 5 ½" x 9 ½".

MFJ-933 - For home/portable stations. Same size, dimension, and feature set as the MFJ-935B, but without the RF current meter.
6 ¼" x 5 ½" x 9 ½".

$59.95 each

WATTMETER, 1.8-525 MHZ, 200 W
$109.95 each

COBWEB,HF,1/2 WAVE, 5-BD,10,12,15,17,20 M,300W
$219.95 each

SUPER HI-Q LOOP, 36~ DIA, 10-30 MHZ, 220VAC
$449.95 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!