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Ferrite choke kits for coax, USB, and ethernet - KF7P.com
Time to reduce the annoying RF sources that are picked up in your radio, or cause havoc with interconnecting shack equipment. Our choke kits provide the ... Learn More
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ARRL Letter
Apr 8, 2021 ... Radio frequency interference (RFI) has been a problem for ham radio operators and SWLs (shortwave listeners) since the radio hobby began. Noise ... Learn More
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March 17, 2005 Ms. Jody Noble, Esquire Duquesne Light Company ...
Mar 17, 2005 ... The complainant referenced in that letter is Mr. G. Robert Thacker, Amateur Radio licensee. K3GT, (address deleted). Although Duquesne Light ... Learn More
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Interference Primer - Parts 1 and 2 Derived from QST Lab Notes
Ed Hare, W1RFI, Laboratory Supervisor, now grapples with one of the most difficult problems in Amateur Radio: electromagnetic interference, or EMI. EMI is a ... Learn More
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Of Frogs and Canaries - ARRL
Sometimes a potential source of unnecessary radio frequency interference (RFI) from unintentional emitters — de- ... from the nearest external sources of manmade ... Learn More
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Experience the ARRL EXPO at the Dayton Hamvention®
Apr 21, 2010 ... The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, ... Learn More
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FCC Rules and Regulations - ARRL
The American Radio Relay League (ARRL) is the national association for amateur radio, connecting hams around the U.S. with news, information and resources. Learn More
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FCC Special Counsel Laura Smith Visits ARRL
Mar 11, 2009 ... Spending all Thursday afternoon with ARRL Lab staff, Smith discussed power line noise and how it can affect Amateur Radio. "Since Riley had ... Learn More
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Estimated Field Strength from Amateur Radio Stations -- ARRL #1
The external area around ARRL HQ is known to have a fairly high ambient noise level, primarily from power-line related noises. Measurements were made in the ... Learn More
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Solar - ARRL
Include "RFI to Amateur Radio Operator" in the description so it will be routed to the correct department. 2) If the solar array is on a neighbor's home or ... Learn More
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