-- 81st Edition
The Standard in Applied Electronics and Communications--since 1926!
Inside this comprehensive RF Engineering Reference you'll find:

~ Fundamental Theory
~ Practical Design and Projects
~ Construction Techniques
~ Operating Practices
~ Wireless Technology (pagers, cell phones, etc.)
...and more!
Always revised!
The 2004 edition includes:

Updated and comprehensive information on AC/RF Sources (Oscillators and Synthesizers)
Revised and comprehensive information on Digital Signal Processing (DSP) technology
A new commercial-quality, high-voltage power (plate) supply
A high-performance easy-to-build passive CW filter
Revised and updated information on cellular technology
An updated Handbook Address List with URL information
Who uses the ARRL Handbook: Radio Amateurs * Electrical/Electronic Technicians and Engineers * Instructors and Students * Government and Private Researchers

Where else you will find the ARRL Handbook used: Engineering Laboratories * Product Development Teams (Electronic) * Research Institutions * School and University Laboratories