On which of the following frequencies are General class licensees prohibited from operating as control operator?
7.125 MHz to 7.175 MHz✓Correct answer
28.000 MHz to 28.025 MHz
21.275 MHz to 21.300 MHz
All these choices are correct
Explanation
General 40 meter privileges run 7.025-7.125 MHz and 7.175-7.300 MHz, so the 50 kHz between them belongs to Advanced and Amateur Extra control operators only. The other two ranges are inside General allocations: all of 10 meters is authorized, and 15 meter privileges resume at 21.275 MHz.