When may an amateur station transmit without identifying on the air?

• A. During emergency operations
• B. When transmitting signals to control model craft
• C. At any time when not in use
• D. When participating in contests

Answer: (B)

The condition that allows an amateur station to transmit without identifying is specifically during situations where the control of certain devices, such as model craft, is involved. In this scenario, the operator may not be required to identify the station during the actual control phase of model craft, as the focus is typically on real-time maneuvering rather than on traditional communication protocols.

Other scenarios that involve emergency operations or contests often require identification at specified intervals, ensuring that all operators are recognized and can be contacted if necessary. Similarly, when an amateur station is not in use, it should not be transmitting at all, as transmission implies active operation and the need for identification. Thus, while there are exceptions to the identification rule in certain specialized situations, controlling model craft is the clear instance where identification is not mandated during the transmission, aligning with relevant regulatory guidelines.