Which of the following applies when the FCC rules designate the amateur service as a secondary user on a band?

Question

Accepted Answer

The correct answer is C: Amateur stations must not cause harmful interference to primary users and must accept interference from primary users. When FCC rules designate the amateur service as a secondary user on a band, amateurs must not cause harmful interference to primary users and must accept interference from primary users. Secondary status means amateurs can use the band but must yield to primary users. For amateur radio operators, understanding secondary status helps explain why you might experience interference and why you must be careful not to interfere with primary services.