Autocruise 2012 Van Conversion Range, Owner'S Handbook Manual

Page: 130 / 153

equipment det
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STATUS 315 oMnI-DIRECTIonAL
TELEVISIon & FM RADIo
AnTEnnA
USAGE GUIDELInES
1. Weak TV Signal
This produces a ‘Snowy’ picture which can
be caused if you are too far away from the
TV transmitter, such as in a remote area,
positioned in a valley, or if there is a building,
hill or other obstruction blocking the signal.
Each TV transmitter has a defined service area
where reception will be good. Beyond that
boundary is a ‘fringe’ area where the TV signal
will be weaker and the reception quality poorer.
Remedy
Firstly determine whether you are in a poor
reception area. Secondly check the points
covered in Fault Finding.
2. TV Signal too strong
This can produce severe picture distortion like
a zig-zag style pattern. This can be caused
when you are too close to a transmitter
or picking up strong radio transmissions
from another source such as CB radio. Also
electrical interference can cause similar effects
(see Interference 4).
Remedy
Turn the gain control switch on the Power
Pack to ‘La’. Secondly check the points
covered in Fault Finding.
3. Ghosting
This is when the TV signal is reflected from
something in your locality. The ‘something’
may be a local building or landmark. Your
antenna is receiving both the direct signal and
the reflected signal from the same transmitter.
Remedy
Try to move to a better position away from
the obstruction. Unfortunately it may not
always be possible to isolate Omni-Directional
antennas from the cause of the problem.
4. Electrical Interference
This type of interference is commonly caused
by electrical appliances, such as fans, electric
shavers, fluorescent lights.
Other forms of interference can produce
a zig-zag pattern similar to that described
in Interference 2 which may be caused by
inverters, charging units etc.
Remedy
Check the points covered in Fault Finding.
In some instances, this type of interference
can be overcome by switching off the
relevant appliances.
status 315 tv & fm radio aerial