Michigan Radio & TV Buzzboard

Had some fluttering signals on the Ham bands, followed down to AM BC band, found signals locally were fine, stations on the upper AM band more than 300 miles away were fluttering pretty badly, on freqs below 1000 kHz were fine. WWV on 2.5 and 5 were fluttering and CHU on 3.33 MHz all were fluttering ...

The voltage converter in the base of LED replacements seem to have some filtering for RFI . Some older ones did not. The small LED strings have wall-wart voltage supplies that have RFI problems. IF you think FM is bad, try listening on AM or Short wave bands !!!!!AWFUL RFI ! FROM LED LAMPS. :shock:

Actually there is a charging regulator circuit between the solar cells and the bettery that operates the lights...THAT could even be generating the wideband RF interference !! There is always something running even when the lights are off.

Can you disconnect or diable the LED lighting? Then Test radios without the Lighting running ?
It sounds like the noise is wide band and strong enough to desense one radio design.

Those LED light strings are notorious for the power supply regulators, (and maybe the LED junctions) generating RFI! Maybe replacing the solar power supply module , or adding a ferrite RF supressor to the wire where it leaves the module... MAY Help.
Good luck.

Hi Z. You live between most of the high power city FM antennas !
Maybe we can chat on 6M , I check the low end of the band when I hear E-skip reports. usually sit on 50.090 kHz.

SUCH a long boom would be very touchy aiming for a weak one !
The biggest Yagi i used on 3M was only 5 elements.

Just curious to see how WJR is doing compared to other AMs I hear in this area of SouthWest Oakland Co. I used my iIcom 7300 radio and a 250 ft Dipole antenna fed with 50 ohm coax. Probably has more attenuation as you go lower in the AM band. Readings taken between 21:40 and 21:50 UT. I may take ...

AMAZing, I am still trying to find a signal on 6M band CW mode.
My best 3M band DX was a St Louis station, all the way from there to Chicago, on the car radio.

More About Grounding Before I retired , I spent some years traveling to radio comm / microwve sites around the state. Many had 300-500 ft towers next to the shelter building. I saw lightning come in thru phone lines, power lines but never thru the antennas. I saw one antenna blown apart but the ...

Nobody cares, I see.......

FOUND ! Loophole in Einstein's laws permit travel faster then LightSpeed !
Finally

Reread this thread, the SD station sounds like a good suspect.
Now if only praire dogs and antelope had FM radios........

I see there is a 97.1, WDRV in Chicago . 8.3 K ERP at 1100 ft, maybe hearable in Rckford, but Rock music format not likely to rebroadcast BBC ! Nothing in Milwaukee, Sure must be distant ducting, too widespread in area to manualy search, for me! I have not heard much FMDX since I took down my Yagi ...

I have several feedlines coming into the radio room, I just disonnect the coax from the main antenna coax switch to the new Icom radio . do not put your Coax into a bucket of water !!
I have a forest of tall trees above my antennas, they get hit first !