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7 Results Found For "noise"
Radio Today Guide To The Icom IC-7300MK2
Radio Today Guide to the Icom IC-7300MK2 By Andrew Barron, ZL3DW Since its introduction in 2016, the Icom IC-7300 has become one of the most popular transceivers in amateur radio. Building on the success of the original, the new IC-7300MK2 introduces enhanced performance, updated specifications, and new features that further elevate this industry-leading radio. In this comprehensive guide, renowned author and amateur radio operator Andrew Barron, ZL3DW provides practical, easy-to-follow instruction to help operators get the most from their IC-7300MK2. The original IC-7300 brought advanced technologies previously found only in much more expensive transceivers to a wider audience. The IC-7300MK2 builds upon that legacy with notable receiver and transmitter performance improvements, including enhanced Reciprocal Mixing Dynamic Range (RMDR) and reduced transmitted phase noise. These improvements help the radio better handle strong nearby signals, resulting in improved operating performance in crowded band conditions. New features include an integrated CW decoder, reduced heat generation through revised circuitry and DC power optimization, and an HDMI output that provides both video and audio for external displays. The radio's popular 4.3-inch touchscreen has also been upgraded from a TFT LCD to an IPS (In-Plane Switching) display, delivering improved color accuracy, wider viewing angles, higher contrast, sharper image quality, and faster response times. As with all Radio Today guides, this book goes far beyond simply repeating the information found in the owner's manual. Instead, it focuses on practical setup, operation, and optimization of the radio's many capabilities. Readers will find detailed guidance on configuring operating modes, setting up digital communication software such as FT8, troubleshooting common issues, and unlocking the full potential of the IC-7300MK2. Whether you already own the Icom IC-7300MK2 or are considering adding one to your station, the Radio Today Guide to the Icom IC-7300MK2 is an invaluable resource filled with practical advice, expert insights, and real-world operating knowledge that will help you get the most from this exceptional transceiver.
Not Yet Reviewed
$25.99
Stealth Antennas for Ham Radio
Stealth Antennas for Ham Radio is the ultimate guide for amateur radio operators navigating restrictive environments. Whether you're dealing with HOA rules, small lots, or simply prefer a low-profile setup, this book offers practical solutions to keep you on the air without drawing attention. Inside, you'll discover 28 discreet antenna designs tailored for covert operation, including multiband verticals disguised as flagpoles, end-fed wires hidden along rooftops, and even the innovative Ham Walking Stick for portable repeater access. Author Steve Ford, WB8IMY, opens the book with essential guidance on safe, ethical, and effective stealth operation. He shares expert tips on minimizing noise, maximizing performance, and making the most of compromise antennas. From compact inverted Ls to creative concealment techniques, this book empowers hams to operate confidently and quietly—no matter where they live. These 28 unobtrusive stealth antennas will get you on the air and making contacts without raising any concerns. Try them out today.
Not Yet Reviewed
$22.95
KE7X Books The Successful Ham Radio Operator's Handbook--Best Practices for all Hams
"The Successful Ham Radio Operator's Handbook--Best Practices for all Hams" By Fred Cady, KE7X and Vic DiCiccio, VE3YT This book helps new operators and returning old-timers learn about the breadth of exciting ham radio activities and challenges available today. The book includes: * How the radio works, including new architectures, such as software defined radio technology and direct sampling receivers. If you understand how a noise blanker or roofing filter or AGC works, you can use these features successfully. * The excitement of different facets of ham radio, including explanations of digital modes, weak signal VHF, public service and emergency preparedness, DXing, mobile operations, and how to get permission to operate abroad. * How to easily make your own dipoles and verticals, and how to feed your antenna, including types of baluns, how they work and how to make them, and how to select coax. * How propagation works, and what to do if you're having trouble making QSOs. If you're looking for a fast way to get up to speed on the many facets of amateur radio, order "The Successful Ham Radio Operator's Handbook--Best Practices for all Hams" from DX Engineering!
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$44.99
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
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!
Not Yet Reviewed
$23.99
ARRL Receiving Antennas for the Radio Amateur
"Transmitting and receiving antennas have different jobs to do." Although the fundamental characteristics of antennas apply to both transmission and reception, the requirements and priorities of receiving antennas can be vastly different from those of transmitting antennas. "Receiving Antennas for the Radio Amateur" focuses entirely on active and passive receiving antennas and their associated circuits. There are relatively few cases where a radio amateur cannot benefit from a separate, well-designed receiving antenna or antenna system. On the low bands, including our new allocations at 630 and 2,200 meters, heavy emphasis on the receiving end of these radio paths is essential for success. The active antenna holds a prominent position in this book, as it offers good receiving performance while taking up minimal space. Recent developments in radio frequency (RF) semiconductors, especially low-noise RF operational amplifiers, have made a number of previously difficult-to-implement active antenna designs a very simple task. Table of Contents: * Receiving Antennas are Different! * Your Friend, the Decibel * The Preamplifier Problem * The Amazing Disappearing Antenna * The Receiving Antenna as a Signal Generator * The Quest for Infinite Power Gain * The Role of the Resistor in the Receiving Antenna * The Small Loop Antenna * Achieving the Perfect Null * You Can Make Accurate Field Strength Measurements * The Aperiodic Loop * The Q Factor * The Beverage: In a Class of Its Own * Dealing with Non-Reciprocal Propagation * The Evolution of the eXOgon Antenna * The Lowdown on LF * The Random Wire * Arrays and Beamforming Networks * Powering Your Active Antenna * Diversity Methods * NVIS Receiving Antennas * Receiving Antenna Projects and Accessories * Materials and Construction Techniques * Our Two New Bands
Not Yet Reviewed
$27.95
QRP Scrapbook
Low-power operation, or QRP, is one of the most popular aspects of amateur radio—and the UK's G-QRP Club is a leading light in this area. This book draws together the very best articles from authors around the world that have been published in the club's journal, SPRAT, in recent years. Packed with projects, "QRP Scrapbook" contains all-new material not previously published in an Radio Society of Great Britain (RSGB) book. Much is included in this 240-page paperback, including modern techniques like a practical RF generation system for superhets using direct digital synthesis (DDS) modules, the use of TV 'dongles' to make a software defined radio (SDR), plus Arduino microcontroller projects for a CW transceiver and keyer, and much more. "QRP Scrapbook" has six sections covering QRP transmitters and transceivers; simple and also somewhat more complex receivers; antenna systems and test equipment suitable for low-power operation—and a 'miscellaneous' section covering subjects as diverse as how to wind toroids tidily, making your own ribbon cable, Morse keys and keyers, crystal oscillators, and ceramic resonators. With the increasing problem of local interference, the noise-cancelling device in this section will be of interest to all amateurs, not just those who operate with low power. Produced in co-operation between the RSGB and the G-QRP Club, this book is essential reading for all interested in the latest in home-construction techniques and the art and science of low-power amateur radio.
Not Yet Reviewed
$23.99