Honda 1997 Accord Wagon Owner's Manual page 72

Radio signals, especially on the
FM band, are deflected by large
objects such as buildings and
hills. Your radio then receives
both the direct signal from the
station's transmitter, and the
deflected signal. This causes the
sound to distort or flutter. This is
a main cause of poor radio
reception in city driving.
Radio reception can be affected
by atmospheric conditions such as
thunderstorms, high humidity, and
even sunspots. You may be able
to receive a distant radio station
one day and not receive it the next
day because of a change in
conditions.
Electrical interference from
passing vehicles and stationary
sources can cause temporary
reception problems.
Comfort and Convenience Features