Radiotelephone stations required to keep logs of their transmissions must include:

The requirement for radiotelephone stations to keep logs of their transmissions encompasses a comprehensive set of details that are crucial for regulatory compliance and operational accountability. Including the station name, date, and time of transmissions is essential because it establishes a clear record of when and where communications took place, which can be vital in case of investigations or audits.

The name of the operator on duty is also a key component, as it allows for accountability and identification of personnel responsible for the communications during a given period. Knowing who was operating the station helps ensure that all transmissions are properly managed and can help trace any issues back to the individual responsible.

Additionally, documenting the station call signs with which communication occurred is necessary for maintaining an accurate log of all interactions. This is important for compliance with FCC regulations, as it assists in tracking the flow of communications between different stations and can be useful for resolving disputes or confirming exchanges.

Hence, the correct answer is comprehensive, as it combines all these elements—each an important aspect of the log-keeping requirements placed on radiotelephone stations by the FCC.