Page 51 of MFJ 2006 Catalog by MFJ Enterprises, Inc.

MFJ . . . The World Leader in Ham Radio Accessories! 51 33 Foot Telescoping Fiberglass Mast Collapses to 3.8 feet . . . Weighs 3.3 lbs. Just pull out each section and twist to lock. It extends to a whopping 33 feet a full quarter wave on 40 Meters! It collapses to just 3.8 feet and weighs a light 3.3 pounds for true portability. Bottom section is large 1 3/4-inch diameter. Super strong fiberglass flexes to resist breaking. Black resists UV. Great for portable, temporary use and semi-permanent use traveling, camping, from hotels, hamfests, field day, DX-peditions. Put up a full size inverted Vee, dipole or vertical antenna in minutes and get full size performance. Use to construct other types of antennas like loops, quads, rotatable dipoles even beams. The MFJ-913/MFJ-919 are true current baluns/antenna center insulators that transforms 200 ohms to 50 ohms. Transmission Line Transformer construction using 100 ohm characteristic impedance transmission line gives flat 160- 10 Meter response. Large low permeability ferrite cores easily handle full power. SO-239, stainless steel hardware with direct 14 gauge stranded copper wire connection to antenna. Heavy duty weather housing. MFJ-913, $29.95. Handles 300 Watts. 4 1/4 Hx2 dia. MFJ-919, $59.95. Handles 1500 Watts. Sturdy, cube shaped housing measures 3 1/2Wx3 1/2Hx2 1/2D inches. MFJ-915 RF Isolator MFJ-915 RF Isolator prevents unwanted RF from traveling on the outside of your coax shield into your transceiver. This unwanted stray RF can cause painful RF bites when you touch your microphone or volume control, cause your display or settings to go crazy, lock up your transceiver or turn off your power supply. In mobile installations, stray RF could cause your car to do funny things even blow your car computer. Clear up these problems, plug an MFJ-915 between your antenna and transceiver. Dont operate without one! 5x2 inches. For 1.8-30 MHz. True 1:1 Current Balun/Center Insulator True 1:1 Current Balun/ Center Insulator forces equal antenna currents in dipoles for superior performance. Reduces coax feedline radiation and field pattern distortion your signal goes where you want it. Reduces TVI, RFI and RF hot spots in your shack. Dont build a dipole without one! 50 hipermeability ferrite beads on high quality RG- 303 Teflon (R) coax and Teflon (R) coax connector. Handles full 1.5kW 1.8-30 MHz. Stainless steel hardware with direct 14 gauge stranded copper wire connection to antenna. 5x2 inches. Heavy duty weather housing. MFJ-915 $29 95 Ship Code A MFJ-913 $29 95 Ship Code A True 4:1 Current Balun/Center Insulators MFJ-918 $24 95 Ship Code A MFJ-1910 $79 95 Ship Code D MFJ W9INN Balun Box Converts unbalanced coax line to balanced ladder transmission line. Giant 2core 4:1 balun wound with Teflon (R) wire. 3 1/4x2 1/4x7 in. Heavy duty ceramic feedthru insulators. 1500 Watts full legal limit. SO-239. Ground post, mounting holes. Switchable 1:1 or 4:1 Current Balun/Unun Switchable. 1:1 or 4:1 current balun/unun. This transmission line transformer uses low-permeability ferrite cores to give amazingly flat response 1.8-30 MHz. Transforms 200 or 50 ohm balanced or unbalanced loads to 50 ohms. Change balanced to unbalanced with ground post. 300 Watts. 2 1/2Wx4 3/4Hx1D inches. True 4:1 Current Balun/Unun True 4:1 current balun/unun transforms 200 ohm balanced and unbalanced loads to 50 ohms. True transmission line transformer gives an amazingly flat response 1.8- 30 MHz. Two low-permeability ferrite cores easily handles 300 watts. Change balanced to unbalanced with ground post. Compact 2 1/2Wx4 3/4Hx1D inches. MFJ-911H $29 95 Ship Code A MFJ-911 $19 95 Ship Code A MFJ-919 $59 95 Ship Code A MFJ 10-40M Portable Antenna DXCC, WAZ, WAC, WAS won with MFJ-1621! MFJ-1621 lets you operate anywhere apartment, campsite, resort hotel, even at the beach. Work 40-10 Meters using included 54-inch telescoping whip antenna. The antenna is mounted on a sturdy, self-standing 6x3x6 inch cabinet. Features a builtin antenna tuner, field strength meter, 50 feet of RG-58 coax. Handles 200 Watts PEP SSB. MFJ-1621 is a complete portable multiband antenna system use it in practically any location. The whip has a 3/8x24 threaded connector to disengage easily and collapses to 22-inches for easy portability. Just place in any electrically clear location, set the bandswitch, tune the capacitor for maximum field strength and sit back, relax, and operate! MFJ-1621 $89 95 Ship Code A MFJ-912 $49 95 Ship Code A Whip Tuner/Artificial Ground gives instant 80-10M, 150 Watt Antenna Just add short whip and counterpoise wire and instantly get an effective portable 150 Watt all band 3.5-30 MHz antenna. It's effective, compact and simple to use for portable, fixed station and emergencies. High power, hi-Q 3-core variable loading coil efficiently resonates short whip or random wire. Identical inductor tunes counterpoise. Operates 30-10 Meters with included 4 foot telescoping whip antenna and counterpoise assembly. Add longer whip/random wire and external loading coil for more efficient operation especially on 80-30M. 12 foot whip, hamstick, Hustler antennas all work great. Tune for low SWR with built-in reversible L-network. Current balun decouples radiating elements. Tune for maximum current on RF Current Meter to give you maximum radiated power and minimum SWR. Sensitivity control lets you use QRP to 150 Watts QRO. Ultra low capacitance fiberglass antenna/counterpoise insulator minimizes shunting antenna current to ground for maximum radiated power. Standard 3/8x24 female connector for whip antennas and wing-nut for counterpoise. SO-239. 7 Wx2 HX2 D in. MFJ-1642, $119.95. Like MFJ-1644 but less RF Current Meter. MFJ-1644 $149 95 Ship Code A

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