An observation: I too had RFI from LED lights, but the interference was to OTA television, Channel 10 (192-198 MHz) DTV.
Not all LED bulbs are created equal in this regard, RFI reduction / elimination. The RFI was generated in this case by the SMPS integral to the bulb. The offending bulb is Utilitech part # 5DG6 (printed on the bulb) and is ‘C UL US’ listed, purchased from LOWEs. I have a overhead fixture that was populated with four 800 lumen (60w?) bulbs, 2 being Utilitech, and 2 Sylvania OSRAM. By removing the bulbs and observing channel 10 reception, the offending bulb was determined to be the Utilitech. I replaced the the the Utilitech bulbs with Sylvania OSRAM, and the RFI on channel 10 OTA was eliminated. The Sylvania OSRAM part number used is LED8.5A19/DIM/0/827/G5/RP as printed on the box UPC, and were purchased from LOWEs also. NOTE: There may be interference from Sylvania OSRAM bulbs on other frequencies. LED bulbs are required to meet FCC Part 15 FCC, Class B regulations. YMMV I have not seen a comprehensive report or article that unveils “good” vs “bad” LED bulb manufacturer and part identification as far as RFI emissions across the spectrum. Ben W4SC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
