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| What causes this |
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| G7PSK:
Most of these vintage style LED bulbs don't use switching droppers so what is causing the RF emissions from them this is not the first time I have heard of the problem but nothing on this level before. https://news.stv.tv/west-central/householders-vintage-lightbulbs-cause-chaos-for-pilots?fbclid=IwAR0tTAnNTT8Ym5_sxuVRWlrlKbEXMNL2_C0-BNP_zN1Y78FGI2qxGUVB53k&top |
| fourfathom:
Many of these "vintage" bulbs are vintage in appearance only. Inside they have LEDs and switchers. These could create interference, but it would have to be very bad to significantly affect distant airplane radio reception. I suppose it's possible though. A true incandescent vintage-style bulb will not generate radio interference. |
| james_s:
Aircraft radio is AM which is far more prone to interference than FM. I'm surprised these bulbs were radiating strongly enough to affect planes in the air, though when listening to the air band on my scanners many different kinds of LED bulbs and other devices do radiate interference that I can easily hear on the radio. |
| G7PSK:
There dose not seem to be any switching regulators in these bulbs just a current regulator and rectifier. Big Clive did a tear down. https://youtu.be/NffhdAz9pc4 |
| Nusa:
The article doesn't really identify the exact technology of the "vintage" light bulb. Perhaps it's not the same implementation that Clive tore down. Perhaps they aren't even LED's? |
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