FCC Question Pool Review

Amateur Extra Class (Element 4) • 2024-2028

Switch License

Question E4E04

From subelement E4 - E4E

E4E04
Answer: D

How can conducted noise from an automobile battery charging system be suppressed?

ABy installing filter capacitors in series with the alternator leads
BBy installing a noise suppression resistor and a blocking capacitor at the battery
CBy installing a high-pass filter in series with the radio’s power lead and a low-pass filter in parallel with the antenna feed line
DBy installing ferrite chokes on the charging system leads