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RECEPTION DISTURBANCES
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IGNITION:
Black spots or horizontal streaks may appear, picture may flutter or drift.
Usually caused by interference from automobile ignition systems, neon
lamps, electric drills and other electric appliances.
GHOSTS:
Ghosts are caused by the television signal following two paths. One is the
direct path and the other is reflected from tall buildings, hills or other
objects. Changing the direction or position of the antenna may improve the
reception.
SNOW:
If your receiver is located in the fringe area of a television station where the
signal is weak, your picture may be marred by the appearance of small
dots. When the signal is extremely weak, it may be necessary to install an
external antenna to improve the picture.
RADIO FREQUENCY INTERFERENCE:
This interference produces moving ripples or diagonal streaks, and in some
cases, causes loss of contrast in the picture.
PICTURE SIZE V
ARIA
TION:
A
slight picture size variation is quite normal when you adjust the
CONTRAST or BRIGHTNESS setting.
M
ost types of television interference can be remedied by adjusting the height and position of the VHF/UHF antenna.
Outdoor antennas are recommended for best results if not using cable or a satellite. The most common types of television
interference are shown below. If one of these symptoms appear when the TV is connected to a Cable TV system, the
disturbance may be caused by the local cable company broadcast.