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  • ARRL :: Public Service :: Emergency Power for Radio Communications

    This book covers the foundation of any communications installation—the power source. Use this book to plan ways to stay on the air when weather or other reasons cause a short-term or long-term power outage. Find ways to reach beyond the commercial power grid. Identify methods for alternative power generation that ... Learn More

  • Light Bulbs and RFI — A Closer Look

    electronics capable of causing RFI. What The FCC Says. Two sets of rules apply for these new bulbs ... operate under Part 18, which addresses. Light Bulbs and RFI — A Closer Look. New high efficiency light ..... line noise and other Part 15 interference cases, writing articles and editing ARRL books pertaining to RFI. He. Learn More

  • Cable Television Interference

    The result of the latter is a condition known as electromagnetic interference (EMI), radio-frequency interference (RFI), TV interference (TVI) or ingress. No matter what you call it, the ultimate translation is ..... It may be possible to obtain this information from the radio station log book. If not, have the station operator transmit on ... Learn More

  • Low Power, Crummy Antenna

    problems. I listen for neighbors' TVs, especially if I know one is poorly shielded, before tuning up. If you're still having problems, pick up a copy of the ARRL RFI Book. See the ARRL Publications Bookcase in the issue. December QST: Low Power, Crummy Antenna - Page 6. ARRL 1998 QST/QEX/NCJ CD C i ht (C) 1999 b ... Learn More

  • 2017 SPRING Catalog Cover 1.indd

    The ARRL RFI Book. 3rd Edition. Item No. 0915 – $29.95. Interference solutions covering telephones, power lines, com- puters and audio equipment. Resources for addressing new realities of digital cable TV sys- tems, over-the-air TV signals, trouble-shooting, and hybrid and all-electric automobiles. ARRL's Low Power ... Learn More

  • VDSL Testing

    Technology >> Radio Frequency Interference (RFI) >> Broadband Over Powerline (BPL) >> Interference From BPL Systems >> VDSL Testing. Interference Reports · ARRL Testing of Home-Phone Network Card · VDSL Testing · Estimated Field Strength from Amateur Radio Stations -- ARRL #1 · Wireless Modem and ... Learn More

  • Forum » RFI - Discussion and Q&A » RFI on 2 meters every ~300 kHz

    The area is served by Time Warner Cable and AT&T U-Verse. I don't know of any other broadband provider. I didn't find any references to this type of noise from these providers. But that isn't conclusive either way in my book. I've found nothing in the literature/forums about this type of noise at this frequency, ... Learn More

  • Arduino

    Here you will find PDF files for the sketches and libraries that you can print out and study, as well as the sketch and library files themselves for use with the Arduino projects in this book. You can also check for newer versions of the sketches at the author's web page at Click here to download a ... Learn More

  • Part 15 - Radio Frequency Devices

    The ARRL publishes an excellent book, the ARRL RFI Book, edited by W1RFI ( what a perfect call for the League's RFI "guru") and written by a collection of real RFI experts. The League also offers considerable starter information about RFI on its TIS Web page. But there are other potential problems that can be widespread. Learn More

  • Part 15 Devices

    Dec 2, 2001 ... The ARRL RFI Book has many sug- gestions for resolving a wide range of radio- frequency interference.1 If a prob- lem is serious or persistent, you may need to file a complaint with the FCC. Thor- oughly document the situation and send a copy to Ed Hare, W1RFI, at ARRL. ( Other sources of ... Learn More