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Post date: Feb 21, 2018 4:19:50 PM
What is that hum? Not all interference is intentional, however there are many forms of intentional interference. This video below lets us know that this is nothing new at all. Just recently I installed 2 4' led lights that replaced the normal florescent tubes. The ballast was removed and wired direct to 120v ac. I like the instant light source and the cost efficiency, however it is a rf menace on the am band for sure. In the same room I have a am radio tuned on 650 am the famous WSM Radio in Nashville Tennessee. When I flip on the led lights the am radio signal is full of hash and could not be tolerated very long at all. Flip the led's off and the radio does 90% better. So after having bought some very good quality led lights for each room of my home I began to install. Keep in mind this was before I made the am radio discovery. I began putting up the lights, as I progressed I noticed new interference in my am radios. I flip light on and there it is again. Flip it off and noise level dropped at least 90%. So I got the packaging out and of course the small print plainly says.
" This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications."
That over the horizon hum, what is that? Could it be? There are unlimited sources of radio interference in today's world. Something as simple as loose connections on the ground wire of the electrical pole, via the staples on the pole.
Enjoy this wealth of information below.
73
ki4ndn
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