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Novel Antennas
Radio amateurs, to one extent or another, all experiment with antennas to get the best performance they can. But few have ever considered anything beyond the basic antenna designs. "Novel Antennas" tries to set that right with a myriad of 'novel' designs from around the world. What is a novel antenna anyway? This book does not include designs for standard Yagis, quads, quarter-wave verticals, horizontal loops, delta loops, magnetic loops, off-center-fed dipoles, or any of the more standard antenna designs that are found elsewhere. Although you won't find a standard dipole in this book, you will find the choke dipole; magnetic loops tuned by a variable inductance or a novel home-made capacitor rather than the usual vacuum variable; the Super Moxon, which adds a pair of directors to the standard Moxon Rectangle design; an orthoganally steered receive antenna that provides incredible levels of rejection of interfering signals; the homemade Wonder Whip for QRP portable operation; a mobile antenna that can double as a car roof rack—and, yes, the original Spiderbeam construction project described by its designer. Probably the most novel antenna in the 192-page paperback is the PICaYAGI by Peter Rhodes, G3XJP. This is a major constructional project in which the physical length of the elements are automatically adjusted to provide not just monoband but mono-frequency performance. Originally published in the Radio Society of Great Britain's journal RadCom, this is the first time it has appeared in print, in full. "Novel Antennas" ensures novel commercially made antennas are not excluded either, and independent reviews can be found of the unusual-looking Bilal Isotron antennas; the OptiBeam OBW10-5, which combines a 5-element driver cell with both Moxon and Yagi-type elements in a novel hybrid design; InnovAntennas' new Opposing Phase Driven Element System (OP-DES) and Loop Fed Array (LFA) designs, and several others. With material included from no less than 57 different authors, the book shows the ingenuity of radio amateurs around the world knows no bounds. With designs from the UK, USA, Canada, France, Germany, Italy, Sweden and even El Salvador, there will be something of interest to all antenna experimenters.
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$23.99
Portable Antennas for Everyone
Portable operating has never been as popular as it is today, thanks to the many excellent modern, small, and lightweight transceivers that are available. But indoors or outside, any station is only as good as its antenna, and that's where this book comes in. "Portable Antennas for Everyone" is broken into sections covering the main types of antenna. Specific designs from around the world are included, starting with a fiberglass pole and a simple 10m length of wire attached to make a quarter-wave vertical antenna for 7MHz. The 192-page paperback continues into verticals designed specifically for use by the ocean and that provide a super-low angle of radiation of just 6 or 7 degrees above the horizon. This book describes how to make a vertical dipole array (VDA), and there's some good advice on kite-supported verticals. You'll also see designs for HF dipoles, doublets, and making your own lightweight HF beams. VHF and UHF antennas are not forgotten: the book includes a dual-band Yagi for satellite working, collapsible 2m and 6m beams, a roll-up J-pole, a 70cm Lindenblad antenna, and even a dual-band beam made from tape measures. Read reviews of commercially made antennas for portable operations—such as the Spiderbeam, the ultra-lightweight Hexbeam, the folding Hexbeam, the all-band SuperStick, an easily transportable magnetic loop, and much, much more. If you're suffering from high domestic noise levels at home, operating portable from the countryside can be a real revelation. Often there is no local noise whatsoever and you find you can copy S1 signals with ease. So now there's no excuse: "Portable Antennas for Everyone" allows everyone to get on the air while experiencing the great outdoors!
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$23.99