3 ms·
Does anyone remember when TV transmissions were easily interrupted and know what the causes were? I remember on my grandmas TV we'd get a lot of snow when a nei
by flukus 8y ago
Does anyone remember when TV transmissions were easily interrupted and know what the causes were? I remember on my grandmas TV we'd get a lot of snow when a neighbor was mowing the lawn for instance, he liked to mow right when grandma like to watch Sunday afternoon football.
I was young at the time so never really understood the cause and it stopped happening, possibly as we went from VHF to UHF transmissions. Was the lawn mower causing EM interference or something else, like an electric mower interfering with the powerlines themselves?
- pixl97 8y agoImproperly shielded spark plug system in an older mower. https://www.w8ji.com/electrical_noise_emi.htm https://www.w8ji.com/electrical_noise_emi.htm https://www.google.com/url?sa=t&source=web&rct=j&url=http://www.dtic.mil/dtic/tr/fulltext/u2/015414.pdf&ved=2ahUKEwid16Kn-vjdAhVHM6wKHZVwCkkQFjAFegQIAhAB&usg=AOvVaw0gSnlbm0Hr4qQeEjaqcy3v https://www.google.com/url?sa=t&source=web&rct=j&url=http://...
- King-Aaron 8y agoI used to see (i.e. hear) the same effect with an older car which I upgraded from mechanical points to a jerry-rigged EFI system. When I turned on the car, it would have a distinct clicking sound that came through the radio as the coil fired.