Tuning & Adjustments - Volume 1 ~
* * *Direct from Belgorod, Russia! * * *
aving trouble getting that new antenna to work or work very well? Or, do you want to see if you are getting the most you can out of the antenna whether big or small or whatever type you may have chosen to use? How do you even know if your antenna is doing its very best? This book tells you how to know how to tune and make proper adjustments how to see your signal flow through the antenna!
If you care about your signal, this book is a must for you! With more than 350 pages, plus hundreds of illustrations in the form of schematics, color drawings, tables and photos, the book not only explains how to optimize the performance of your antenna, it explains the essential type of equipment to use and how to use it. If your budget is too tight to purchase all of the equipment needed, find out how to easily build your own from new parts or even salvaged parts or convert other equipment and have fun doing it!
Part 1 will acquaint you with the elementary
measurements, which are necessary for antenna adjusting. Similarly to DC (direct current)
circuits, where voltage current measurement is common, it is possible with antenna
adjustments to meter the RF current present in an antenna. It explains how to meter the
amount of RF voltage acting on an antenna versus the transmitters input power.
The reader will learn how to meter the field strength produced by an antenna, along its feeder system and how much signal exists within the environment around the transceiver. Once armed with the results of these measurements, one will be better able to make informed decisions about setting up and tuning an antenna.
Once the radio amateur has learned how to use the various items of equipment described in Part 1, the following Part 2 describes how to perform some antenna tuning and adjustments using the SWR meter, the High-Frequency (HF) Bridge and the Noise Bridge (NB).
While the SWR meter is among the oldest pieces of equipment used for antenna tuning, there are so many versions available its is difficult for one to make a choice that is appropriate for a specific use. It takes an analysis of how a particular SWR meter operates and what capabilities are built in to make the proper choice. This book deals with such issues.
Even so, it is not enough to just know the SWR readings in an antenna for proper tuning. One must also know the antennas input impedance. This is where the HF Bridge comes into play and they have been in use for a long time too by radio amateurs and professional alike. In this Part, the book examines some of the simplest schematics for HF Bridges available and for use by the amateur. As we shall see, one of the most important features of a HF Bridge is the zero meter and various useful designs for the HF zero meter are discussed in Part 2.
Parts 1 and 2 consider equipment and methods permitting one to meter HF current and voltage, to determine the SWR of an antenna and to determine an antennas input impedance. But there are still other items of equipment, which will allow one to visually determine the performance of an antenna. These items are reviewed in Part 3 as more advanced methods of tuning are explained.
For instance, the reader will review the use of the Grid Dip Oscillator (GDO). This unique piece of equipment has been widely used by radio amateurs for many years. The GDO allows one to determine the amount of absorption by the presence of high frequency energy within an antenna or antenna system. This type of measurement allows one to make a conclusion about the about resonant frequencies of antennas. GDO is a very interesting instrument and skillful usage can provide much useful information about an antenna. Learn about those skills in this Part of the book.
In the three Parts of the book, a full spectrum of the instruments essential to the antenna setup are reviewed as to purpose and their use. The three Parts of this book together provide and explain to the reader just about every conceivable technique of tuning and adjusting antennas.
And, here's a preview of the content of the 350+-page book which contains hundreds of diagrams, color drawings, tables and photos:
|PART 1||Voltage Current Power & Field Measurements in Antenna Adjustments||13|
|1||High-Frequency Voltage Measurements||16|
|2||Measurement of High-Frequency Current||20|
|3||Measurement of RF Power||32|
|4||Measurement of Electro-Magnetic Fields||49|
|PART 2||Antenna Feed Parameter Measurements||76|
|5||SWR Meters on Directional Couplers||79|
|7||High-Frequency Generators for RF Bridges||133|
|8||A Noise Bridge||168|
|PART 3||Alternative Methods of Antenna Parameter Measurements||185|
|9||The Grid Dip Oscillator||188|
|10||Measuring Amplitude vs AFR Characteristics||273|
|11||Using T-connectors in Radio Operations||323|
We are very pleased to bring another new book to you direct from Russia! This is the second book project antenneX brings to its shelves written by Igor Grigorov, RK3ZK, of Belgorod, Russia. Be sure and take a look at his very first book published in the English-speaking world: URBAN ANTENNAS (see picture above of Igor operating in his shack with Urban Antennas book on the table at the ready)
This exciting AND UNIQUE new book, another first of its kind in the English-speaking world, is available in the popular PDF eBook in choice of CD-ROM or download. The eBook may be purchased by download (33MB) directly from this website, or shipped on CD-ROM. You may order directly online from our Secure Website, or by FAX, telephone or postal service. Links to the ORDER FORMS are provided here.
The book is available for immediate Download or on CD-ROM:
The book is available for immediate Download or on CD-ROM:
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Brief Biography of
Author Igor Grigorov firstname.lastname@example.org
Igor was born in 1962 in
Belgorod, Russia and finished high school there in 1979. After high school, from 1979 to
1980 he worked in the factory Energomash in Belgorod as a mechanical worker.