Motorola Radius CM300 Manuale di installazione - Pagina 32

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Motorola Radius CM300 Manuale di installazione

10.3

Alternator

This type of interference is characterized by a high-pitched whine which varies with engine speed. A

0.5 µF coaxial capacitor (Motorola Part No. 0882571B01) can be used to bypass the whine. For

generators, the capacitors is connected in the armature lead. Never use a capacitor in the field lead.

Use the field suppressor assembly supplied in the TLN5277 Noise Reduction Kit. For alternators, the

capacitor is connected in the lead to the battery post (see Figures 10-2 and 10-3).

Step 1.

Mount Capacitor

(0.5 F Coaxial Type)

under generator ground screw.

Step 1.

Mount Capacitor to

(0.5 F Coaxial Type)

under alternator

ground screw.

Step 3.

Connect wire lead to capacitor

using lockwasher and nut.

Step 2.

Disconnect wire (dashed)

from armature post and

connect to capacitor using

lockwasher and nut.

Figure 10-2. Generator Whine Suppression

Figure 10-3. Alternator Whine Suppression

Noise Reduction Techniques

Step 4.

Connect capacitor

lead to armature post.

Caution:

Do not connect

capacitor to field teminal.

FL0830310-O

Step 2.

Disconnect wire from

battery post and connect

to capacitor using