In addition to the 350 to 515 kHz band, on what other band must a main receiver on a United States ship operate?

In addition to the 350 to 515 kHz band, on what other band must a main receiver on a United States ship operate?

• A. 600 to 700 kHz
• B. 1000 to 1200 kHz
• C. 100 to 200 kHz
• D. 516 to 615 kHz

Answer: (C)

The correct answer identifies the requirement for a main receiver on a United States ship to operate in the frequency range of 100 to 200 kHz in addition to the 350 to 515 kHz band. This range falls within the medium frequency (MF) band, which is significant for maritime communications, particularly for navigation and safety. Operating within the 100 to 200 kHz spectrum is crucial as it allows for transmission and reception of important maritime information, such as emergency signals and navigational data. This ensures that vessels remain compliant with international maritime regulations that prioritize safety and communication capabilities at sea. Other frequencies mentioned do not align with the operational requirements outlined for maritime vessels. The 600 to 700 kHz range, the 1000 to 1200 kHz range, and the 516 to 615 kHz range do not serve the same essential maritime functions or may not be designated for shipboard communications, thus reinforcing the necessity of the 100 to 200 kHz range along with the primary 350 to 515 kHz band.

The correct answer identifies the requirement for a main receiver on a United States ship to operate in the frequency range of 100 to 200 kHz in addition to the 350 to 515 kHz band. This range falls within the medium frequency (MF) band, which is significant for maritime communications, particularly for navigation and safety.

Operating within the 100 to 200 kHz spectrum is crucial as it allows for transmission and reception of important maritime information, such as emergency signals and navigational data. This ensures that vessels remain compliant with international maritime regulations that prioritize safety and communication capabilities at sea.

Other frequencies mentioned do not align with the operational requirements outlined for maritime vessels. The 600 to 700 kHz range, the 1000 to 1200 kHz range, and the 516 to 615 kHz range do not serve the same essential maritime functions or may not be designated for shipboard communications, thus reinforcing the necessity of the 100 to 200 kHz range along with the primary 350 to 515 kHz band.