On which of the following bands is phone operation prohibited?

Question

Accepted Answer

The correct answer is B: 30 meters. Phone operation is prohibited on the 30-meter band. The 30-meter band (10.100-10.150 MHz) is restricted to CW and digital modes only - no voice (phone) operation is allowed. This restriction helps prevent interference with other services that share the band. For amateur radio operators, understanding this restriction is essential for legal operation. The 30-meter band is unique in having this phone prohibition.