Shipboard transmitters using F3E emission (FM voice) may not exceed what carrier power?

In the context of shipboard transmitters using F3E emission, which refers to FM voice communication, the carrier power limit is established to ensure effective communication while minimizing interference with other operational channels.

The correct limit for shipboard F3E emission is 25 watts of carrier power. This restriction is designed to maintain a balance between adequate communication range for safety and operational effectiveness, while also adhering to regulatory requirements set by the FCC. By limiting the power output to 25 watts, the potential for creating excessive interference with other radio service operations is significantly reduced, which aligns with maritime communication protocols.

Higher power levels, such as 100 watts, 250 watts, or 500 watts, would not only increase the risk of signal interference but may exceed the technical capabilities and regulations that govern shipboard communications. Therefore, the 25-watt carrier power limit is essential for maintaining orderly and effective radio communication at sea.