Picture Defects And Countermeasures(Vhf/Uhf Reception) - Insignia IS-TV040918 User Manual

Picture defects and countermeasoures(VHF/UHF reception)
The most common types of television interference are as follows:
SNOWY PICTURE
Snowy picture is usually due to weak signal. Adjust antenna or install an antenna amplifier.
DOUBLE IMAGE OR GHOSTS
Double images are usually caused by the blocking of tall buildings. Adjust the direction of antenna or lift it
higher.
RADIO WAVE INTERFERENCE
Wavy patterns are moving on the screen, which are usually caused by nearby radio transmitters or short-
wave receiving equipment.
HIGH TEMPERATURE ELECTROTHERMAL INTERFERENCE
Diagonal or herringbone patterns of picture distortion appears on the screen, which is probably caused by
high temperature electrothermal equipment used in a nearby hospital.
NOTE:If one of these symptoms appears on the screen when the cable from a company is connected, this
may be due to the local cable company broadcast.
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