Figure 3-3. Mobile station interconnections.

TM 11-5820-544-12

(5) For suppression of noise encountered in mobile

source, use a PP-4766/GRC-159(V) d.c. power

operation, use the following procedures:

supply with a Collins 440E-1 to connect it to the

(a) Use resistor-type spark plugs.

transceiver.

(b) Install coaxial bypass capacitors at the

(4) If a mobile speaker is desired, use Loud

ignition coil, generator, and voltage regulator leads.

speaker, Permanent Magnet LS-116/U (NSN 5965-

Use bracket-mounted coaxial capacitors in the battery

00-179-2398).

and generator leads to the voltage regulator and

0.005- f (or smaller) disk ceramic or mica capacitor

from the field lead to ground. DO NOT use larger

than a 0.005- f capacitor here unless a 4-ohm resistor

is placed in series with it.

Figure 3-3. Mobile station interconnections.

Change 1 3-5