Tuner reception

[Swerd]

I have a high gain roof Yagi-Uda array. I'm about 45 to 50 miles from the transmitter at Blackduck MN. I get a good signal though. On my Quad FM 4s only the very top LED is partially lit. When the LEDs are off then I have no noticeable background noise.

45 to 50 miles isn't as distant as I thought you were. Do you notice that reception quality is better on an overcast day vs. a clear day? Do you also receive HDTV over the air? I find I can easily get HDTV signals from Baltimore (over 50 miles away) that, when decoded, are much clearer than analog FM radio from that distance.

I have used ultra high efficiency LED bulbs, not available in stores, that are for commercial use. These higher quality bulbs are known to produce more interference.

The interference does transmit to my vehicles and they have to be a significant distance from the house before the interference is not audible.

That alone explains a lot. My earlier post about signal strength and hi-gain antennae was nothing more than wondering out loud. Most of what I knew about radio back then had nothing to do with civilian radio, and I was never much interested in short wave ham radio. I did have to learn Morse code (the Soviet Navy may have been the only Morse code user in the world), and when I left the Navy, I was most certainly done with that.

The only difficulty is that I can not use the Quad FM 4 down on the first level if any of the LEDS are on, on the three upper levels.

Maybe that rules out your antenna. I wonder if the interference is picked up by the cable or the Quad receiver itself. Shielding built into those devices may not have anticipated the level of noise from those LED lights.

In my view it is time for broadcasters to start phasing out terrestrial transmission and migrating to high quality Internet transmission.

You could be right about that. However, in the eastern cities, where I live, the air waves are loaded with high signal strength TV and FM radio. Antenna gain is not the issue I face, it's selectivity. But that is more easily dealt with than noisy light bulbs.

Thanks for those two links.

 

[TLS Guy]

45 to 50 miles isn't as distant as I thought you were. Do you notice that reception quality is better on an overcast day vs. a clear day? Do you also receive HDTV over the air? I find I can easily get HDTV signals from Baltimore (over 50 miles away) that, when decoded, are much clearer than analog FM radio from that distance.
That alone explains a lot. My earlier post about signal strength and hi-gain antennae was nothing more than wondering out loud. Most of what I knew about radio back then had nothing to do with civilian radio, and I was never much interested in short wave ham radio. I did have to learn Morse code (the Soviet Navy may have been the only Morse code user in the world), and when I left the Navy, I was most certainly done with that.
Maybe that rules out your antenna. I wonder if the interference is picked up by the cable or the Quad receiver itself. Shielding built into those devices may not have anticipated the level of noise from those LED lights.
You could be right about that. However, in the eastern cities, where I live, the air waves are loaded with high signal strength TV and FM radio. Antenna gain is not the issue I face, it's selectivity. But that is more easily dealt with than noisy light bulbs.

Thanks for those two links.

No, the interference is being picked up by the antenna. It is on the Marantz when set to analog and not HD. The bulbs nearest the antenna make the most noise. I can put as many LEDs on as I like in the first level, and the Quad FM 4 is fine. If I turn light near the antenna, then O hear interference on the first level. If I just have half a dozen LEDs or so on near the antenna there is no problem. The bedroom and the lower great room have many more than that though.

There is NO terrestrial TV signal you can pick up at that location and never has been.

 

[multimediatech]

so much confusion and way too many technical jargon for something so simple. Just get rid of your old receiver and get a AV receiver that support internet radio