Read Portable Wire Antennas by John W Hill Online


This is not a book on antenna theory It does provide clear easily understood explanations on the principles of antenna operation, transmission line considerations, impedance matching, baluns, tuners, and the pros and cons of different types and configurations of wire antennas This book is written with the intention of enabling a new comer to amateur radio to understand the theory and practical considerations of this subject without getting lost in mathematics and complex theory Portable, reliable HF communication is required for emergency management, expedition communications and recreational uses This book is about selecting and constructing portable HF wire antennas that will provide maximum performance with low power, light weight and low bulk All the information required to assemble antennas and antenna kits that can be deployed in multiple configurations is provided Special attention is given to wire antennas deployed at low heights above ground, a situation confronted by operators on the move Special attention is also given to NVIS Near Vertical Incident Skywave communications, which is also optimum with low antenna elevation NVIS propagation enables communications in the 50 500 mile range regardless of terrain and independent of repeaters With two or three low suspension points 8 20 ft , one can deploy wire antennas that cover the 160 30 meter bands those capable of NVIS propagation with performance optimized for NVIS communication With a single high suspension point that can be improvised from one or two tall trees, buildings or cliff faces and one of the antenna launch systems described here, one can deploy multiple antenna options that can be configured from the modular antenna kit These include inverted V resonant or random wire dipoles, long wire antennas, sloper dipoles and inverted L antennas for efficient all band regional use It also covers terminated V beam and inverted half rhombic beam antennas optimized for 20 10 meters while being broad band no tuner required , low noise gain equal to or greater than a high dipole With two medium to high suspension points 15 80 ft depending on the band , one can install half square wire antennas that produce high gain low angle radiation that is optimum for DX operation Dropping one of the wire curtains converts the same antenna into a general coverage multi band inverted L With the versatility of the modular antenna components described here, one can quickly assemble, deploy and dis assemble and roll up high performance wire antennas that are adaptable to nearly any operating environment and communications objective....

Title : Portable Wire Antennas
Author :
Rating :
ISBN : 1884979130
Format Type : Paperback
Language : English
Publisher : Clear Springs Press 2.11 edition April 15, 2015
Number of Pages : 152 pages
File Size : 699 KB
Status : Available For Download
Last checked : 21 Minutes ago!

Portable Wire Antennas Reviews

  • Big Daddy
    2019-02-16 03:16

    This book is written for the Radio Amateur reader, and, aa such, it contains a large amount of practical Antenna design information for the "Ham" community. Possibly the strongest descriptor of the book is that it is near encyclopedic in its coverage of wire antennas. For each configuration discussedl the author includes simple sketches, and often, practical suggestions for how to get the most out of the configuration.

  • B. A. Patriot
    2019-02-02 19:15

    I hesitated to buy this book, as I've purchased a couple "antenna manuals" and have been previously disappointed. Not this time! The author has left me with a broad range of ideas I actually understand, exact instructions on how to make the antennas work, and sound advice on how (and why) to choose them.

  • Lewis J. Clarke
    2019-01-19 02:18

    I found this book to be a simple straight forward presentation about wire antennas without the mind numbing theory and math that bogs down the reader who wants a basic explanation of which antenna configuration would fit his real estate and accomplish the type of communication (DX or close in) he is looking to accomplish. The information certainly narrowed my search for a portable antenna to use while camping in my travel trailer to the few that make sense for the physical location.

  • D.B. Lewis
    2019-02-05 20:03

    As a new ham, I need overviews to become informed about the technical issues that could affect my buying decisions. The author uses plain language to explain things I need to learn.

  • gwilbur
    2019-01-21 02:15

    Had to read this a couple of times to absorb enough of the technical information enough to make an antenna decision. Book is detailed and logical, easily followed just technically dense.

  • m005kennedy
    2019-02-05 21:59

    Besides having technical explanations, the author give cook book style recipes for many antennas. I really think this book was well worth the small price.

  • Forrest J.
    2019-01-23 02:19

    This an older edition but the information is still sound and the explanations are clear for a subject which is opaque at best. Most communication technications and electronic engineers would do well to keep one at hand

  • Richard Salinas
    2019-02-07 18:59

    A lot of good solid information on antennas for use with ham radios. I found it useful for just a practical look at antenna technology from a DIY standpoint.