Motorola GM1200E Руководство по установке - Страница 29

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Ignition
Switch
Battery
Notes:
1. Noise reduction can only be achieved if components are grounded properly.
Be sure that all the capacitors and the generator filed suppressor assembly are
grounded properly. This may require bonding straps for proper bypass
capacitor effectiveness.
2. Items not supplied in kit. See auto parts dealer.
Generator
5
Reference
Number
1
2
3
4
5
6
-
Figure 2-4 TLN6252A Noise Reduction Kit for Generator-Equipped Vehicles.
Some interference is due to geographic location and need not be eliminated with mobile radios since
it is possible for the vehicle to be moved away from the interfering noise source. Noise from power
lines, fluorescent lights, and other vehicles (emitting high levels of radiated noise) are examples of
noise which depends upon location. Make certain that you are not attempting to noise suppress a
vehicle while it is in a noisy location. If you suspect that your location is noisy, simply turn off
everything in the vehicle except the radio and listen to the remaining ambient noise. If the noise level
is objectionable, you may have to noise suppress the vehicle during a less noisy time of day or in a
different, quieter location.
Reducing Noise Interference in Mobile Two-Way Radio Installations
3
1
Breaker
Points
4
2
Armature
Field
Common Ground
Quantity
3
1
1
3
1
1
1
Ignition
Coil
Distributor
4
4
To
Battery
Motorola
Description
Part Number
1V839913
Lead & Lug Assembly
1V80700A88
Lead & Lug Assembly
8C82571B02
Capacitor, Coaxial (0.1µF, 100V)
8C82571B01
Capacitor, Coaxial (0.5µF, 100V)
1V80700A89
Generator Field Suppressor Assembly
30A502396
Ignition Coil Suppressor Cable
1V80700A91
Hood Wipers (2) and Mounting
Hardware Kit (not illustrated).
Detection of Noise Sources
Resistive wire
(note 2)
6
Resistor
Spark Plugs
(note 2)
Voltage Regulator
ARM
FLD
1
1
To
Generator Field
BAT
2-5