Find on this site... Site Index  ·Classes ·Exams ·Clubs ·Hamfests ·Addresses    Search site:    Call sign search:   ARRL Member Login... Username:   Password:    Register    Forgot userid/password?  Quick Links... ·Join or Renew ·Catalog & Store ·ARRL Courses ·Classifieds ·Getting Started

Operating Activities Licensing News/Bulletins Services Education Public Service Support Donate to ARRL ARRL Info Text-only

ARRL Products: Digital Communications (More) ARRL's HF Digital Handbook -- Join the Digital Race! 4th Edition. Nifty E-Z Guide to PSK31 Operation -- A complete guide for implementing PSK31! Morse Code for Radio Amateurs -- Includes a free CD of audio and computer programs. ARRL's VHF Digital Handbook -- Dive into the digital radio universe! Digital Signal Processing Technology -- Essentials of the Communications Revolution. An understandable presentation and reference on DSP in contemporary communications technology.

Additional information on this subject and related topics can be found in back issues of QST and the following:

AC Power Interference Handbook

Articles

Note: Some of the following articles are in Adobe Portable Document Format (PDF) files. To view and print these files, you'll need a copy of Adobe's Acrobat Reader program. (Version 3.0 or later required). More information here.

Articles

• Transmission & Distribution World Magazine
  provides practical information and insight toward A Smarter Approach to Resolving Power-Line Noise. T&D Magazine is edited for engineers and operating professionals in the electric power industry. Expanded from this article with additional information is The Issue of Power-Line Noise A Smarter Approach. This expanded article covers all aspects of how best to handle and resolve a power-line noise complaint.
• Power-Line Noise Mitigation Handbook for Naval and Other Receiving Sites

Web Links

• Gene Preston, K5GP provides power-line RFI information based on his many years of experience in the power utility industry in How To Quickly Locate And Fix Power Line Interference. Gene's PowerPoint RFI presentation given at the Midland ham fest is also available. Note: this is a 4 megabyte file.
• RFI Services - Power-line workshops and troubleshooting consulting.
  RFI Services provides classroom and on-site training for power-company personnel on the techniques used to identify and cure power-line interference. They can also troubleshoot electrical-noise problems in the field.

• FCC Enforcement Activities and the Electric Utility Industry by Ed Hare, W1RFI, ARRL Laboratory Manager.
  The ARRL and FCC cooperative agreement following with a link list to FCC enforcement letters sent to electric-utility companies concerning harmful interference reports.

• Lichtig EMC Consulting
  Provides power-line noise consultation services. Also provides EMC consultation services to the telecommunications industry.

• Radar Engineers
  Makers of RFI locators, ultrasonic locators, arc reflection radar, secondary fault locators and cable tracers.

• UE Systems Inc.
  Manufactures of ultrasonic equipment and instruments.

• DazyWeb Laboratories WM-400 (Soundcard) AC Wattmeter
  Software to monitor your power line at home for frequency, phase, noise, power factor, and glitches.

Article Reprints:

You can get a photocopy of any ARRL published article for $3 ($5 for nonmembers) for each article requested. Contact the ARRL Technical Department (reprints@arrl.org ), 1-860-594-0390) if you wish to get photocopies.

This information was prepared as a membership service by the American Radio Relay League, Inc., Technical Information Service, 225 Main St., Newington, CT 06111 (860) 594-0214. Email: tis@arrl.org (Internet). ARRL HQ is glad to provide this information on the Web free of charge as a service to League members and affiliated clubs.

If you have any questions concerning the reproduction or distribution of this material, please contact:

TIS Coordinator
American Radio Relay League
225 Main St., Newington, CT 06111
Tel: 860-594-0214 Fax: 860-594-0259
(email: tis@arrl.org)