Reception area of fm broadcasts multipath – Eclipse - Fujitsu Ten CD5425E User Manual
Page 27
How to operate the tuner
91
Reception area of FM broadcasts
Multipath
A home receiver can catch weak FM stereo signals
through the use of a tall, directional or ultra-sensitive
antenna. In a moving vehicle, the area for good
reception is limited because of varying conditions
encountered while driving, including the types and
heights of broadcast antenna structures, signal strength,
engine noise, etc. For best reception with manual
antenna, extend the antenna mast as far as possible.
The reflection characteristics of FM waves cause
another problem called multipath–FM wave signals
reflecting off of buildings, mountains, etc. When the
antenna receives direct and reflected waves at the
same time, distortion of sound in the treble range often
occurs, such as static or harsh-sounding voices. THIS
IS NOT A TUNER PROBLEM. Only moving to another
area with a clearer signal path can remedy the situation.
Transmitting Antenna 100 Meters High
Effective Radiation Power 1kW
FM Stereo Car Radio 20 km
FM Monaural Car Radio 50 km
Reception quality varies depending on the power of
the FM station, natural and artificial barriers, weather
conditions, etc.
Home FM Stereo Receiver 100 km
REF
LEC
TED
WA
VE
RE
FL
EC
TE
D
WA
VE
DIRECT
WAVE
VI