Page 50 of MFJ 2006 Catalog by MFJ Enterprises, Inc.

50 www.mfjenterprises.com MFJ's new Manually Tuned Screwdriver Antennas let you operate all bands 80-6 Meters continuously including all WARC bands and the new 60 Meter bands (depends on model). It far outperforms other HF compact antennas. An extra long 10 foot (19 collapsed) telescoping whip lets you really get out and work rare DX! A 4 foot (23 collapsed) telescoping stainless steel whip is included for mobile and limited space operation. It has a highly efficient loading inductor. For highest Q, the coil is wound with heavy gauge wire with wide spaced turns on a core that is mostly air. A tuning sleeve electrically removes turns to eliminate detrimental self-resonance effects that "wander leads" cause. The tuning sleeve is on the low impedance side of the coil to minimize power robbing stray capacitance and detuning hand capacitance effects. Tuning is smooth, easy and sure the frequency stays put after you tune it. No tedious back forth trial error tuning procedure. It's extremely rugged the whole coil assembly is one unit and does not move. A separate movable sleeve adjusts frequency. A nylon-tipped thumbscrew locks sleeve. Wing nut lets you connect a matching capacitor or inductor for 1:1 SWR. Standard 3/8x24 mounting hardware is used for loading coil and both whips. Use any 3/8x24 mount. Works great in/outdoors. Handles 200Watts PEP. Add coax, connect ground/counterpoise and you're ready! Mobile Manual Screwdriver Antennas The MFJ-1662 (40-6 Meters) and the MFJ-1668 (80-6 Meters) are termed Mobile Antennas because they cover their respective frequency ranges with the short 4 foot (23 inches collapsed) mobile telescoping stainless steel whip. A 10 foot telescoping whip (19 inches collapsed) is included for fixed mobile operation only. It vastly increases efficiency when you are stopped at a hotel or rest stop, etc. MFJ Portable Antenna Tripods Each have black steel base forms with strong braced equilateral triangles on a side. They have non-skid feet and strong base and mast locks. You can easily add a mount or mast extension for even greater heights. MFJ-1918, $39.95, holds 66 pounds of antenna steady and extends up to 6 feet. One inch diameter steel mast extends height to six feet. Strong base and mast locks. Collapses to 38 inches by 4 inch diameter. Weighs just 6 3/ 4 pounds. HEAVY DUTY TRIPOD! New! MFJ-1919, $79.95, holds 100 pounds of antenna steady and extends to a whopping 7.8 feet. Base extends to 693 inches squared. 1.4 inch diameter mast easily accepts most U-bolt antenna applications. Collapses to 38 inches by 4 inch diameter. 9 3/ 4 pounds. MFJ-1918 $39 95 Ship Code C MFJ-1919 $79 95 Ship Code D HF Portable/Mobile Manual Screwdriver Antennas Covers 40-2 Meters with 4 foot mobile or 10 foot fixed operation telescoping whip. Continuously adjustable loading coil is 15 inches long by 2 inches in diameter and weighs 1.3 pounds. MFJ-1662 $129 95 Ship Code C Covers 80-6 Meters with 4 foot mobile or 10 foot fixed operation telescoping whip. Continuously adjustable loading coil is 36 inches long by 2 inches in diameter and weighs 2.6 pounds. MFJ-1668 $159 95 Ship Code C MFJ's new Manually Tuned Screwdriver Antennas lets you operate all bands between 80 and 6 Meters continuously including all WARC bands and the new 60 Meter bands (depends on model). It far outperforms other HF compact antennas. Portable Manual Screwdriver Antennas The MFJ-1661 (40-6 Meters) and the MFJ-1664 (80-6 Meters) are termed Portable Antennas because they cover their respective frequency ranges with the long 10 foot (19 inches collapsed) telescoping whip for fixed operation. They are smaller and lighter than the mobile versions. A short 4 foot (23 inches collapsed) telescoping whip is included for limited space or mobile operation. Covers 40-2 Meters with 10 foot whip. Covers 6-20 Meters with 4 foot whip. 12 inches long by 2 inches in diameter. Weighs one pound. MFJ-1661 $119 95 Ship Code C Covers 80-6 Meters with 10 foot whip. Covers 6-40 Meters 4 foot whip. 24 inches long by 2 inches in diameter. Weighs just 1.8 pounds. MFJ-1664 $149 95 Ship Code C 12/10/4.5 feet telescoping whips 12 and 10 Foot whips are durable 1/2 inch diameter plated brass. Standard 3/8 inch by 24 threaded stud for all standard mounts. Replace screwdriver antenna whip for highly efficient fixed mobile operation. Telescopes for full 1/4 wave operation 2 to 12/15 Meters. Cover 17, 20, 30, 40, 60, 80, 160 Meters with loading coil. Use two for multi-band dipoles. A. MFJ-1956, $29.95. Telescopic, 12 feet fully extended, 22.5 inches collapsed. B. MFJ-1954, $19.95. Telescopic, 10 feet fully extended, 19 inches collapsed. C. MFJ-1952, $14.95. Telescopic, 4.5 feet extended stainless steel whip. 22 inches collapsed. 3/8x24 threaded stud. Super durable for mobile or base operation. 108 and 72 inches stainless steel whips Solid stainless steel 108 inch and 72 inch whips with corona discharge caps. Super durable whips for mobile screwdriver antennas. 3/8x24 threaded stud. D. MFJ-1966, $24.95. 108 inches. E. MFJ-1964, $19.95. 72 inches. A B C D E Ultimate Portable HF Vertical Antenna MFJ-1964K $54 95 Ship Code A You get Phil Salas, AD5X Ultimate Portable Antenna article, from QST, 2005; a 2.5 diameter, 5inch length coil; a ten foot telescopic whip antenna; six special silver plated tap clips for the coil, and a chassis mount SO-239 connector to build the antenna. The rest of the parts needed to build the antenna are described in AD5X article. The antenna is a full quarter-wave on 20-10 Meters, and also works 60, 40 and 30 Meters.

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