Transmission Line Transformers- ARRL Edition-

by Jerry Sevick

This fourth edition contains all the valuable information from earlier editions: the classic techniques of Guanella and Ruthroff as well as hundreds of real transformers constructed and measured to establish the practical levels of bandwidth and loss performance that can be obtained with transmission transformer techniques. This new edition expands the coverage of what is already the most comprehensive book on this subject.
Three new chapters cover:

Transmission Line Transformer Efficiency
Notes on Power Combiners and Mixer Transformers
Equal-Delay Transformers
The new information includes observations and analyses by Jerry Sevick intended to clarify the principles behind the operation of these transformers. An entirely new chapter presents the family of equal-delay transformers that enable designers to obtain the benefits of transmission line transformer performance with a wider range of transformation ratios. Written by Gary Breed, K9AY, this chapter maintains Sevick’s practical tone with construction details and performance evaluation of a 50–to–75-ohm equal-delay transformer

Nostro riferimento numero: A 113

Satellite Handbook - ARRL-

-- By Steve Ford, WB8IMY
Put yourself at Mission Control!
The ARRL Satellite Handbook brings the thrill of satellite communications within your reach. Filled with understandable descriptions and illustrations, this book includes all the tools you need to participate in this exciting field. It's designed to give a broad introduction to the subject, while providing the practical fundamentals you need to explore, track and operate ham radio satellites on your own.

Contents:
A Brief History of Amateur Radio Satellites
Satellite Orbits and Tracking
Satellite Communication Systems
Your Satellite Ground Station
Satellite Operating
Amateur Satellite Projects
Plus, understanding satellite orbits and subsystems by Dr Martin Davidoff, K2UBC
First edition. © 2008, The American Radio Relay League, Inc

Satellite Anthology - ARRL

Packet Radio Primer - RSGB -

by Dave Coomber
A light-hearted introduction to the exciting world of packet radio which will help any beginner to get started with the minimum of fuss. Detailed practical advice on connecting up equipment is followed by a guide through the maze of configurations possible.
Sample logs of contacts and files downloaded from mailboxes and bulletin boards are included so you can see just what they look like, and much reference information is also included as a handy supplement to your equipment manuals.
This second edition has been completely revised and greatly expanded to cover recent developments in this field and also to take you beyond the bare basics into more advanced areas such as satellite operation.
2nd Edn, 1995, RSGB, paperback, 183 by 245 mm, 266 pages

Nostro riferimento numero: E 23

Your Guide to Propagation - RSGB

The RSGB Guide to EMC

by Robin Page-Jones
Practice good radio housekeeping! Achieving electromagnetic compatibility (EMC) with the increasing number of electronic devices in surrounding buildings can be a major problem for anyone operating radio equipment. Tackle RF interference problems and understand the underlying causes. Covers filters and braid-breakers. Packed with reference data!
204 pages. Second edition, © 1998, Radio Society of Great Britain

PREFIX GUIDE - RSGB

NEW Revised Edition

The complete guide to prefix identification and information.

Ever wondered what that "unusual" call sign was? The fully updated "RSGB Prefix Guide" answers the question.

This comprehensive list of prefixes is revised and improved. Not just a listing of prefixes and their entities, the guide provides a host of useful additional material. References include a prefix's continent, CQ Zone, ITU Zone, Latitude and Longitude and many other details.

This edition includes all the elements that have made the book so popular over the years such as DXCC deleted entities, Russian & CIS entities, the popular DXCC checklist, and details of various award programs: IOTA, CQ WAZ, DXCC, WAS and others. New for this edition is an index of countries and their callsign allocations divided by continent. Designed with a "lay flat" wire binding for ease of use.

Softcover: 80 pages
Publisher: Radio Society of Great Britain (RSGB). Ninth Edition (2010)

Nostro riferimento numero: E 141

CALL SIGN DIRECTORY - DARC

NEW
Systematically listed amateur radio call signalassignments of the whole world.
With national information to thecall signal assignment in the territories of the respective countries.

- Preface;
- Principles of Call Sign Assignment;
- How to use the List;
- German - English Glossary;
- ITU Allocations and National CallSign Assignment
- DXCC/WAE Countries;
- ITU Allocations.

pages 240 printed October 2008

Nostro riferimento numero: D155