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Digital Communications

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Building Wireless Community Networks -- Explore the 802.11b standard (also known as WiFi). 2nd edition.

VoIP: Internet Linking for Radio Amateurs -- Where RF meets the Internet! A guide to four VoIP systems: EchoLink, IRLP, eQSO and WIRES-II.

The ARRL Software Library for Hams 2.0 -- CD-ROM, Version 2.0. Quick access to utilities, applications and information.

Morse Code for Radio Amateurs -- Includes a free CD of audio and computer programs.

Digital Signal Processing Technology -- Essentials of the Communications Revolution. An understandable presentation and reference on DSP in contemporary communications technology.

The RFI Update column

The RFI Update column is published on ARRLWeb to bring members the latest about RFI issies. The column features information on current activities in the RFI arena, interesting RFI cases handled by ARRL and tips for solving RFI problems. An archive of past RFI Update columns is available here.

If you have information you believe is useful to ARRL's RFI program, or if you need help with an interference problem, contact the ARRL RFI team, call the ARRL Laboratory staff at (860) 594-0214 or write to the ARRL RFI Desk, 225 Main St, Newington, CT 06111.

TitleDate
Spectrum Sharing and Unlicensed DevicesMarch 8, 2002
The ARRL RFI Pages and HQ RFI StaffDecember 14, 2001



Page last modified: 11:05 AM, 08 Aug 2002 ET
Page author: rfi@arrl.org
Copyright © 2002, American Radio Relay League, Inc. All Rights Reserved.