1 of 1- turkeytop
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Can Anyone Explain This?
These warm, summer evenings I always stay outside on the patio until after dark. I sit at the patio table under the patio umbrella with my radio.
The umbrella has solar powered LED lights running along each of the ribs. These mid-summer nights, the lights always turn on about 9:15 PM. The very instant they switch on, it somehow attenuates the signal to my radio. A weak station gets weaker and sometimes gets lost altogether.
Anyone have a theory as to how that happens?
After all is said and done, more is usually said than done.
- RonaldS
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Re: Can Anyone Explain This?
LEDs themselves don't emit RF, but the electronics that drive them can. If not properly shielded, interference can result.
turkeytop wrote:
These warm, summer evenings I always stay outside on the patio until after dark. I sit at the patio table under the patio umbrella with my radio.
The umbrella has solar powered LED lights running along each of the ribs. These mid-summer nights, the lights always turn on about 9:15 PM. The very instant they switch on, it somehow attenuates the signal to my radio. A weak station gets weaker and sometimes gets lost altogether.
Anyone have a theory as to how that happens?
- DeepTracks
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Re: Can Anyone Explain This?
Check out this link for info related to LEDs and how they are made to work. LEDs are NOT in a constant ON state. Basically it's Google search results but you get the idea.
The effective strength of the interfering signal being produced by the LED driver circuitry may be causing the AGC in your radio's circuitry to shutdown, or minimize, as it may be fooling your radio into believing the signal is local and doesn't require additional amplification. Which - it is, it's just not the desired signal.
Last edited by DeepTracks (August 4, 2024 9:06 am)
- ig
- Iain Grant
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Re: Can Anyone Explain This?
Chinese cheese electiral engineering. Not the LED's, the power supply / LDR circuitry, and probably fake crappy VTL5C chips.
Madness takes its toll. Please have exact change.
- Chrisphen
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Re: Can Anyone Explain This?
LEDs themselves don't emit RF, but the electronics that drive them can. If not properly shielded, interference can result.
I can attest. I bought a cheapass LED grow light assembly that generates a crapload of RF noise - it'll drown out FM signals on radios up to twenty feet away.