These loop tuners can be used indoors or out outdoors for portable use. Powerless -no power supply required.
Maximum Input Power - 150 Watts (all modes). 6 ¼" W, 9 ½" D, 5 ¼ H. Interference, reduces overloading, and rejects harmonics. Perfect for apartments & hotel/motel rooms, antenna.Drape a wire around a bookcase and attach both ends to this new 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 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 1.5 to 1 frequency range i. 28-18 or 10-7 MHz, etc. Exact frequency coverage depends on wire length, loop shape and environment. Its perfect for apartments, hotel/motel rooms, antenna restricted, and portable locations -- it really gets out! 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. The item "MFJ-933 5.3-29.7MHz Loop Tuner" is in sale since Monday, October 31, 2016. This item is in the category "Mobile Phones & Communication\Radio Communication Equipment\Antennas\Ham/Amateur Radio Antennas".The seller is "radiosuperstore" and is located in Woburn Sands, Milton Keynes. This item can be shipped to North, South, or Latin America, all countries in Europe, all countries in continental Asia, Australia.