The MFJ-933 Small High-Efficiency Loop Tuner, Jr. also has a detachable mount for a PVC Cross. Available separately, the MFJ-57B or MFJ-58B PVC Cross Loop Antenna Kits can be used to make a compact self-contained antenna system requiring no ground, radials, or counterpoises. Drape a wire around a bookcase and attach both ends to this MFJ-933 Small High-Efficiency Loop Tuner, Jr. It instantly turns into a small, high-efficiency multi-band transmitting loop antenna!
You can operate 5.3 to 29.7 MHz with a full 150 Watts. No ground, radials, or counterpoises are needed. A 13-ft wire formed into a loop operates 30-20 Meters (4-ft for 17-10M; 7-ft for 20-15M; 28-ft for 60M).
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 fixed wire length covers about a 1.5 to 1 frequency range (i.e. 28-18 or 10-7 MHz, etc.). Exact frequency coverage depends on wire length, loop shape, and environment.
The excellent performance of a small high efficiency loop antenna is well known and well proven by users all over the world.
You'll radiate a low-angle DX signal that literally rivals full-size dipoles -- work incredible DX! It is also a very quiet receiving antenna. It responds to magnetic fields and not electric fields so you'll hardly notice static crashes during a storm. Its high-Q rejects out-of-band interference, reduces overloading, and harmonics.
It's perfect for apartments, hotel/motel rooms, antenna restricted, and portable locations -- it really gets out!
You can take it with you and have it up and operating in minutes from nearly anywhere? on trips, vacations, DX-expeditions, camping, even from a motor home.
All you need is a transmitter/transceiver with a wattmeter and a wire loop to be operating in no time. An Easy-Carry handle permits easy handling to and from portable locations. The unit measures 6 ¼ W x 9 ½ D x 5 ¼ H.