Miscellaneous Appliances - Fleetwood 1999 American Tradition Parts And Service Manual

In addition, TV and radio frequency interference results from
the electromagnetic fields produced by electric arc discharge.
This arcing is found in lightning, vehicle ignition systems,
and in 12-volt DC (brush type) motors used in power vents
and furnaces. Note that nearly every DC motor has brushes.
Most alternating current (AC) motors do not have brushes,
and therefore do not generate the arcing interference. This is
why this type of interference is less noticeable in a house-
hold environment.
As the signal diminishes with distance and geographical fea-
tures (mountains, etc.), the effect of electric arc interference
may become more and more noticeable. Eventually, the sig-
nal will be overcome by the interference. The following sug- .
gestions can improve reception:
»
Use the "park cable" TV antenna system of your RV in remote
areas rather than the roof antenna if the campground provides
cable hook-up.
»
Turn the television antenna. Sometimes turning the antenna
will pick up a stronger signal. Try turning or rotating the anten-
na throughout its range. You may find your signal in a very
unexpected direction.
»
With FM stereo signals, switch the unit to MONO, if possible.
Some of the phase and noise components of a stereo signal
will disappear in MONO mode.
»
Reduce the treble setting to reduce background noise.
Although not yielding the best high-frequency performance, at
least you may be able to reduce the irritation of the distortion
and noise.
You may have additional appliances in your unit which oper-
ate only when connected to 120-volt power from either a
public utility or the generator.
AMERicAN
T
RAdhioN
AppliANCES
MISCELLANEOUS
ApPLIANCES
08-7