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Volvo 1990 740 Model
Radio antenna mast
NOTE: Always lower the antenna mast when entering an automatic car
wash.
The antenna should be cleaned and lubricated every 5,000 miles (8,000 km).
Multipath Distortion
FM Signals are typically "line-of-sight", and very reflective. Their reflectivity to objects such as
buildings, mountains, even other passing vehicles, causes the condition known as multipath distortion.
This distortion is the result of the reflected signal, and the direct signal reaching your antenna at slightly
different times causing a cancellation of all signals. This condition will sound like hissing, or static.
Very little can be done to eliminate this problem, however, lowering the treble on your radio could help
mask these disturbances thereby allowing you to achieve optimum pleasure from your audio system.
file:///K|/ownersdocs/1990/1990_740/90740_04.htm (15 of 15)12/30/2006 8:25:50 AM
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