Fluorescent Light QRN

A recent posting on the ON4KST 6m Chat page brought up the question of QRN coming from  fluorescent lighting.

Lefty, K1TOL, had a lot of QRN coming from his neighbour's garage, about 1,000 feet away. He solved the problem by changing the ballasts, purchased at Home Depot. This is the ballast that solved his problem, so if you are having similar difficulty, perhaps this will be of benefit.

Sometimes just changing to a different bulb type (manufacturer) will solve the problem as well but from what I have read, you get what you pay for and likely the bargain-bin bulbs are not the quietest.
Steve McDonald, VE7SL, is a regular contributor to AmateurRadio.com and writes from British Columbia, Canada. Contact him at [email protected].

3 Responses to “Fluorescent Light QRN”

  • Michael VA3OTA:

    Shouldn’t this read QRM? I’ve yet to see a fluorescent light that was created by nature…

  • Steve VE7SL:

    Not according to the ARRL Michael:


    ‘QRN’ has long been used to describe noise of any sort (usually atmospherics) but increasingly more so regarding RFI noises. ‘QRM’ mainly refers to interference caused by other amateur signals.

    Steve 73

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