69
How to operate the tuner
Reception area of FM broadcasts
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.
Multipath
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.
Reception quality varies depending on the power of the FM
station, natural and artificial barriers,weather conditions, etc.
Transmitting Antenna 100 Meters High
Effective Radiation Power 1kW
FM Stereo Car Radio 12.4 miles
FM Monaural Car Radio 31 miles
Home FM Stereo Receiver 62 miles
REFLECTED
WAVE
REFLECTED
WAVE
DIRECT
WAVE
CD5425.book 69 ページ ２００４年１２月１１日 土曜日 午後５時９分
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