G1A06 : Which of the following applies when the FCC rules designate the amateur service as a secondary user on a band?
A
Amateur stations must record the call sign of the primary service station before operating on a frequency assigned to that station
B
Amateur stations may use the band only during emergencies
C
Amateur stations must not cause harmful interference to primary users and must accept interference from primary users
D
Amateur stations may only operate during specific hours of the day, while primary users are permitted 24-hour use of the band
Correct Answer: Amateur stations must not cause harmful interference to primary users and must accept interference from primary users