2. Operating System and Equipment
The radio is far away from the broadcasting
station, so the signals are too weak to be received.
As a result, the radio will only receive noises.
When the car is driven between the areas to
receive two strong stations with a close signal
frequency at the same time, the radio may lose
sound suddenly or produce noise interference.
Although MW or SW of AM cannot pass through
ionosphere, it will produce diffraction. As a result,
when the radio waves hit high mountains and
high-rise buildings, its spreading distance will be
farther than that of FM. Therefore, it is likely to
simultaneously receive the signals from two AM
stations.
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