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8 Results Found For "in-line"
Amateur Radio Astronomy
For everyone interested in radio astronomy, "Amateur Radio Astronomy" is a great source of material to expand your knowledge. It also provides a practical guide to making and setting up your own equipment, through to the study signals coming from space. Updated and with over 60 pages more than the previous edition, "Amateur Radio Astronomy" covers in-depth the subject of receiving radio signals from outer space. Starting with a historical perspective of radio astronomy, this 384-page paperback shows how much radio amateurs have contributed to the science of radio astronomy and how the average amateur can contribute in this area today. There are newly expanded details of the required parameters for the antenna and receiver and how to assemble a station. There are details of a 50MHz Meteor Radar system and lots of straightforward advice and practical information on putting together your own receiving station. Included is a practical design for a 1420MHz "hydrogen line receiver," a frequency which the Search for Extra-Terrestrial Intelligence programme (SETI) is focused on. New material includes a chapter on Mechanical Systems and details of the Hart RAO KAT Demonstrator Antenna. This book is the result of period of research stretching back over many years, containing a great balance between historical narrative and technical information. "Amateur Radio Astronomy" is not only a great read, but a practical reference for the application of radio technology in this fascinating topic.
Not Yet Reviewed
$25.99
EMC and RFI Know How
Many radio amateurs have Electromagnetic Compatibility (EMC) issues or, as it is more commonly referred to in the US, Radio Frequency Interference (RFI). As a scourge of our time, there's been much written about this topic as to cures, identifying the problems, and much more. "EMC and RFI Know-How" sets out to draw this material together and provide valuable insight into an area considered by many to be one of the most important problems facing amateur radio today. This 208-page paperback draws on expertise from across the world and includes material from the UK, USA, Germany, Greece, and the Netherlands. You'll find sections dedicated to sources of interference such as lighting, xDSL, renewable energy, air conditioners, air source heat pumps, power line noise, and power supplies and chargers. "EMC and RFI Know-How" also takes the reader through practical ways of defeating the problem of interference. Home constructors are well catered for with the circuit of an HF receiver suitable for direction-finding, a preselector to eliminate interference from powerful broadcast stations, filters to stop breakthrough to TVs, and even a 'QRM-Eliminating' antenna. Advice is also given on how to prevent breakthrough from amateur transmissions spoiling the family's enjoyment of television programs! The average home contains numerous electronic devices that can potentially cause interference in the amateur radio spectrum. "EMC and RFI Know-How" takes a detailed look at how this interference can occur—and how it can be defeated. This an essential book for every radio amateur's library.
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$20.99
Understanding Ham Radio Propagation
Understanding Ham Radio Propagation, written by Michael Burnette, AF7KB, the acclaimed and award-winning author of exam books for US Amateur Radio licenses, this book offers an accessible guide to radio wave propagation for Amateur Radio enthusiasts. Understanding Ham Radio Propagation provides insights into "everything that happens to our signal after it leaves our antenna," as Michael describes. Contrary to the belief that little can be done to influence propagation, this book dispels that notion by presenting best practices to enhance your chances of successful communication, whether across town or around the globe. The book is organized into logical chapters that cover various types of propagation, from 'Ground Wave' and 'Line of Sight' to 'Ionospheric', 'Auroral', and 'Space' propagation. It also delves into Tropospheric Ducting, Space Weather, Meteor Scatter, and more. Readers will find a dedicated chapter on 'Getting Started in (Smart) HF DXing, offering straightforward guidance to improve your station's propagation performance. Part of the Amateur Radio Insights series, this book is concise, written in a conversational style, and features numerous illustrations with minimal complex mathematics, making it an engaging read. If you aim to ensure your signal reaches its intended destination effectively, Understanding Ham Radio Propagation is an indispensable guide.
Not Yet Reviewed
$22.99
ARRL - Antenna Towers for Radio Amateurs
"Antenna Towers for Radio Amateurs" from ARRL will walk you through the tower installation process. These books will review the process completely, from choosing the right tower to mixing and pouring concrete, putting in a base, and finally erecting the tower, antennas, and accessories. Having many years of experience as a tower professional, Don Daso, K4ZA, methodically directs you in the design and construction of your own amateur radio tower. You'll learn the necessary expertise, tool requirements, climbing practices, and personal safety procedures necessary to allow for the construction of an improved antenna system. Mr. Daso has incorporated advice for using rope and pulleys, guy lines, and various pieces of required hardware. There are sections on proper procedures for removing existing towers, performing inspections, and carrying out maintenance. Whether you want to install an antenna tower yourself, or engage professional talent to do the work for you, "Antenna Towers for Radio Amateurs" will help you tower above the rest!
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$29.95
Antennas for MF and Above
Written by RadCom antennas guru Mike Parkin, this is a book that provides exactly what is says on the cover. "Antennas for MF and Above" is a practical guide to antennas for the relatively new 630m band, 160m, 80m, and equally new 60m band. The 112-page paperback is aimed at the constructor—or those who are curious to understand in further detail the theoretical aspects of the antenna techniques used on these bands. Rather than concentrating on single bands, Mike shows how you can often use the same approach or even the same antenna to work two or more bands. There are examples of how a 160m antenna can be pressed into service on 630m or even 80m models that can be made to work on 160 and 60m. Specialized chapters cover, for example, antennas for 630m. You'll find examples of single-band and multi-band working designs for both vertical and horizontally polarized antennas. There are explanations of the operation of antennas, with radiation pattern diagrams used to help with understanding the concepts introduced. You will also read practical techniques for matching the antenna to the transmission line, with examples of baluns, transformers, and ATUs to illustrate these methods. If you're interested in experimenting with the bands below 40m, you'll find much to interest you in this book. "Antennas for MF and Above" is without a doubt one of amateur radio's standard reference works—and THE practical guide for everyone interested in antennas for the amateur bands from 630m to 60m.
Not Yet Reviewed
$20.99
Power Supplies Explained
A power supply is something often overlooked by radio amateurs, as for many it's simply the box that provides stable DC voltage at the flick of a switch. However, a modern power supply is much more, combining theory that dates back to the 19th century and incorporating the latest techniques in digital control, with a wealth of electronics practice in between. "Power Supplies Explained" sets out to do exactly this—explain in understandable terms what that little box is doing, right through to designing your own bespoke power supply. Some believe there is a little magic in power supply design; beginners especially are wary of the challenging mixture of digital, analogue, magnetics, and control loops—with cooling, EMC, and safety to contend with, as well. While many books deal with the theory in depth, they often give little guidance on the practical aspects of achieving working designs. "Power Supplies Explained" is different. This 320-page paperback details how circuits are chosen for the application and how circuits are designed, including their inductors and transformers. Calculations are outlined in a simple way so that the reader can use them as a basis for their own designs. Readers will find chapters that include descriptions of linear supplies and a wide range of switched-mode types, from simple buck converters to the latest off-line high-efficiency topologies. The worked examples are based around typical radio amateur requirements—and in many cases are versions of commercial products that the author has successfully designed. There are also chapters on magnetics theory, control loops, EMC, practical construction techniques, test equipment, and much more. High-voltage power supplies are included, with comprehensive guidance on safety. "Power Supplies Explained" sets out to dispel the mystery and encourage readers to 'have a go' with their own designs!
Not Yet Reviewed
$36.99
Backyard Antennas
Radio amateurs and short-wave listeners all want to achieve the very best from their HF and VHF equipment. Receivers and transmitters are available to professional standards, but very few people have the real estate to erect the sort of antenna used by a commercial radio station. In his 208-page paperback, "Backyard Antennas," antenna guru Peter Dodd explains how—by using a variety of simple techniques—it's possible to achieve very high performance from a compact antenna. Also detailed is how to make an antenna efficient on several bands at once. The book covers end-fed and center-fed antennas, rotary beams, loops, tuning units, VHF/UHF antennas, antenna and mast construction, transmission lines, and how to estimate and measure the performance of your antenna. Whether you have a house, bungalow or apartment, "Backyard Antennas" will help you find the solution to radiating a good signal on your favorite band.
Not Yet Reviewed
$28.99
RSGB's Power Supplies Explained
A power supply is often taken for granted by radio amateurs, as for many it is simply the box, that at the flick of a switch, provides stable DC voltage. A modern power supply is much more though, combining theory that dates back to the nineteenth century incorporating the latest techniques in digital control, with a wealth of electronics practice in between. The RSGB's Power Supplies Explained sets out to do exactly this - explain in understandable terms what that little box is doing, right through to designing your own custom-built power supply. Some believe there is a little magic in power supply design. Beginners may be especially wary of the challenging mixture of digital, analog, magnetics and control loops, with cooling, EMC and safety to contend with as well. While many books deal with the theory in depth, they often give little guidance on the practical aspects of achieving working designs. Power Supplies Explained is different. This book describes how circuits are chosen for the application and how circuits are designed including their inductors and transformers. Calculations are outlined in a simple way so that the reader can use them as a basis for their own designs. Readers will find chapters that include descriptions of 'linear' supplies and a wide range of 'switched-mode' types from simple buck converters to the latest off-line high-efficiency types. Practical examples are based around typical radio amateur requirements and in many cases are versions of commercial products that the author has successfully designed. There are also chapters on magnetics theory, control loops, EMC, practical construction techniques, test equipment and much more. High voltage power supplies are included with comprehensive guidance on safety.
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$24.95