405 L4-1905cc 1.9L (1989)
b.
Weak signal noise - the background noise becomes almost as strong as the weak signal itself
c.
Intermodulation distortion - a harmonic of a strong station interferes with a weak station
d.
Adjacent channel interference - a strong station of almost the same frequency of the station listened to interferes
e.
Multi-path noise - signals reflected off buildings or hills and arrive at the antenna slightly after the direct signal and distort the direct
signal
Because these noises vary from area to area, the establishment of a consistently used radio test route will enable you to make valid
comparisons between radios.
OTHER RADIO-RELATED BULLETINS:
Listed below are other radio-related bulletins found in the Class 15 section of your binder.
No.
SUBJECT
168
Flickering of Digital Display -- J986 Alpine
176
Excessive Ignition Noise on AM, 1988 Gas Sedans
and Wagons
177
Power Antenna Mast Replacement
206
Alpine Anti-Theft Radio
210
Installing 1987 Radio in Previous Year Vehicles
211
Excessive Ignition Noise on AM, All Year Vehicles
212
Anti-Theft Program - Dealer Responsibilities
214
Electric Antenna Maintenance/Diagnosis
229
Intermittent Power Antenna Problems/Power Antenna
Maintenance
239
Hirschmann Power Antenna Failures
262
Out-of-Warranty Radio Repairs 7 Alpine
281
Out-of-Warranty Radio Repairs - All Radios
283
Insufficient AM Signal Strength and/or Excessive
Static in Fringe Areas