SECTION VI. RADIO INTERFERENCE SUPPRESSION
4-16. RADIO INTERFERENCE SUPPRESSION METHODS.
General. Essentially, suppression is attained by providing a low resistance path to ground for the stray currents.
The methods used include shielding the ignition and high-frequency wires, grounding the frame with bonding straps, and
using capacitors and resistors.
Interference Suppression Components.
(1) Primary suppression components. The primary suppression components are those whose primary function
is to supress radio interference. These components are illustrated in figure 4-9.
(2) Secondary suppression components. These components have radio interference suppression functions
which are incidental or secondary to their primary function.
Testing. Test the bonding strap (1, fig. 4-9) with a multimeter or ohmmeter for continuity between components
being bonded. Replace a defective bonding strap. If test equipment is not available and interference is indicated,
replace the bonding strap.
Figure 4-9. Radio Interference Suppression Components.