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How to operate the tuner
FM reception characteristics
A characteristic of transmitted signals is that lower frequencies
travel further. FM frequencies are much higher than AM・s (similar to
a ray of light): they won・t bend but they will reflect. Often, they will
be interrupted by tall buildings, mountains, etc., taking direct and
indirect paths to your vehicle・s antenna. The distance at which FM
stations can be received satisfactorily is usually not nearly as far as
that which AM stations can be received.
In weak signal or "fringe" reception areas, FM stations may fade out
completely, or fade in and out. When driving in weak signal areas,
such as near hills, through valleys or tunnels, among tall buildings,
etc., you may encounter unusual noise interference. THIS IS NOT
A TUNER PROBLEM. In this case, you can only wait until you are in
a better reception area, tune to a stronger station, or reduce the
treble level.
In general, FM has much better tonal quality than AM. However, FM
and FM stereo reception encounter several characteristic problems not
encountered with AM. FM is more difficult to receive than AM in a moving
vehicle. The following are explanatory notes on what to expect from FM
reception and on how to get satisfactory performance.
FM reception differs from AM
Fading out