1Longbow wrote:
Powering tv = 110V
It always pixelates but we just figured out that the pump and furnace makes it pixelate
It has always done it
We are using the antenna
Digital Over the air (OTA) ATSC broadcasts are extremely sensitive to noise.. In fact you can say this broadcast method is fragile..
You NEED a lot of strong signal to start with to get a usable picture and sound that is stable.
Weak signal strength and local artificial radio noise (AKA RFI or Radio Frequency Interference) will damage the incoming signal packets that the tuner is not able to properly decode them.
When that happens you can get "blockies" or Pixalated or tiled screen and worse frozen screen, black screen and can get audio with cuts out..
Your furnace and water pump use DC Brush type motors, this type of motor creates huge amounts of RFI.. That RFI is swamping your stations signals and causing the results you see.
You have several options..
Increase signal strength (IE bigger antenna), move antenna and TV farther away from the RFI source (kind of hard to do in a RV) or if you are electronic savvy you could try adding some small value capacitors (.01 uf or so) at the motor (this needs to be right at the motor to have any possible effect)..
Otherwise you are just going to have to live with the blockies..