Author :
Publisher :
Page : pages
File Size : 23,42 MB
Release : 2015
Category : Amateur radio stations
ISBN : 9781625950437
"Thanks to these two revolutionary digital communication modes, any radio amateur can easily make contacts throughout the world. You don't need high power or large antennas with JT65 or JT9. Ham radio operators have already used these modes to earn awards such as ARRL's DX Century Club with nothing more than 5 watts RF output and indoor antennas"--Back cover.
Author : H. Ward Silver
Publisher : John Wiley & Sons
Page : 436 pages
File Size : 12,88 MB
Release : 2018-03-02
Category : Technology & Engineering
ISBN : 1119454824
Your how-to guide to become a ham Ham radio, or amateur radio, is a way to talk with people around the world in real-time, or to send email without any sort of internet connection. It provides a way to keep in touch with friends and family, whether they are across town or across the country. It is also a very important emergency communication system. When cell phones, landlines, the internet, and other systems are down or overloaded, Amateur Radio still gets the message through. Radio amateurs, often called "hams," enjoy radio technology as a hobby, but are often called upon to provide vital service when regular communications systems fail. Ham Radio For Dummies is your guide to everything there is to know about ham radio. Plus, this updated edition provides new and additional information on digital mode operating, as well as use of amateur radio in student science and new operating events. • Set up your radio station • Design your ham shack • Provide support in emergencies and communicate with other hams • Study for the licensing exam and choose your call sign If you're looking to join a college radio club or just want to learn the latest tips and tricks, this book is a helpful reference guide to beginners, or those who have been "hams" for years.
Author :
Publisher :
Page : pages
File Size : 20,46 MB
Release : 2018-10-25
Category :
ISBN : 9781625950987
Author : American Radio Relay League
Publisher : American Radio Relay League (ARRL)
Page : 406 pages
File Size : 25,30 MB
Release : 2004
Category : Political Science
ISBN :
Author : Steve Ford
Publisher : American Radio Relay League
Page : 210 pages
File Size : 46,10 MB
Release : 2007
Category : Technology & Engineering
ISBN : 0872591034
Author : Raymond E. Foster
Publisher : Prentice Hall
Page : 472 pages
File Size : 31,21 MB
Release : 2005
Category : Law
ISBN :
Part 1 - Introduction to theory and basics : Ch. 1 Introduction to police technology -- Ch. 2 Computer Basics -- Ch. 3 Wireless Communications -- Ch. 4 Networks -- Ch. 5 Geographic Information System [GIS] -- Ch. 6 A brief history of Police Technology -- Part 2 - Strategic Information Systems and Technologies: Ch. 7 Communications Dispatch Centers -- Ch. 8 Agency Systems -- Ch. 9 External Systems -- Ch. 10 The Internet and Law Enforcement -- Ch. 11 Information Exchange -- Ch. 12 Crime analysis -- Part 3 - Tactical Information Systems : Ch. 13 Technology in Investigations -- Ch. 14 Wiretaps -- Ch. 15 Tracking and surveillance -- Ch.16 Hi-Tech Crime -- Ch. 17 Major Incident and Response -- Ch. 18 Technology in the Street -- Part 4 - Technology in Police management : Ch. 19 Personnel and Training -- Ch. 20 Implementing and Managing Technology -- Ch. 21 Emerging and Future Technologies.
Author : Joseph Carr
Publisher : McGraw Hill Professional
Page : 785 pages
File Size : 37,86 MB
Release : 2011-10-25
Category : Technology
ISBN : 0071639586
THE DEFINITIVE ANTENNA REFERENCE--FULLY REVISED AND EXPANDED! Design and build your own antennas with the help of this unique guide. Updated and revised to provide clear answers to questions frequently asked by hobbyists and electronics technicians, Practical Antenna Handbook, Fifth Edition blends theoretical concepts with hands-on experience--requiring only high school mathematics Reorganized to flow logically from broad physical principles to specific antenna design and construction techniques, the book begins by covering the fundamentals. Then the half-wave dipole is discussed both as an excellent antenna in its own right and as a conceptual tool for predicting the performance of other designs. Transmission line impedance matching techniques--and a companion Smith chart tutorial--lead into "must have" accessories for tuning, monitoring, and troubleshooting antenna system performance. Other tools, such as antenna modeling software and network analyzer add-ons for PCs and Macs, are addressed, and concluding chapters offer fresh insights into support structures and installation techniques. NEW TOPICS COVERED INCLUDE: Characteristics of all-driven and parasitic arrays Beverages and small MF/HF receiving loops Top-loaded shunt-fed towers and other verticals Theory and design of Yagi beams Effect of real ground on propagation and antenna patterns, impedance, and efficiency Lightning protection and four kinds of ground systems Zoning and restrictive covenants COVERS A WIDE VARIETY OF ANTENNAS: Dipoles and inverted-Vs Quads, delta, and NVIS loops Wire arrays (bobtail curtain, half-square, rhombic) Verticals and shunt-fed towers Rotatable Yagi beams MF/HF receiving antennas (flag, pennant, K9AY, Beverage) Mobile and portable antennas VHF/UHF/microwave antennas And many more GO TO WWW.MHPROFESSIONAL.COM/CARR5 FOR: * Tables of worldwide geographic coordinates and antenna dimensions vs. frequency * Supplier updates * Author's blog * Additional photographs and schematics * Links to tutorials and specialized calculators
Author : Dan Romanchik
Publisher :
Page : pages
File Size : 42,12 MB
Release : 2018-07
Category :
ISBN : 9780983221630
Study guide for the Technician Class amateur radio license exam.
Author : Ian Poole
Publisher : Newnes
Page : 273 pages
File Size : 20,53 MB
Release : 1998-03-05
Category : Technology & Engineering
ISBN : 0080938469
Basic Radio is a wide ranging introduction to the principles of radio waves, transmission and reception, and to the technologies of broadcasting, satellite and personal communications. As well as being a textbook for vocational courses such as City & Guilds and BTEC Ian Poole's book is essential reading for all communications and broadcast professionals.Radio technology is becoming increasingly important in today's highly sophisticated electronics industry. There are traditional uses including broadcasting and point to point communications, as well as new technologies associated with cellular phones and wire-less data links. All of these developments mean that there will be a greater need for radio engineers at all levels.Ian Poole is an electronic engineer currently involved in project management for the development of a large radio system. He is a regular contributor to Electronic - The Maplin Magazine, Everyday Practical Electronics and Practical Wireless. He has also written several books on amateur radio. - An accessible introduction to radio engineering - Suitable for FE students, technicians and hobbyists - Covers the latest technologies: cellular phones, wire-less data links
Author : Owen Mace
Publisher : ATF Imprint
Page : 200 pages
File Size : 21,33 MB
Release : 2017-08-15
Category : Science
ISBN : 9781925309805
In the 1960s, a group of University of Melbourne Science and Engineering students banded together to build a satellite in their spare time. Share the journey of those students as they built Australis OSCAR 5 and had it launched into orbit by NASA in January 1970. Australis operated successfully for nearly two months before its batteries ran out. It was the first satellite built in Australia and achieved a number of important technical milestones, including over a dozen world firsts.
