What frequencies does the emergency locator transmitter operate on?

What frequencies does the emergency locator transmitter operate on?

• A. 121.5 and 243.0 MHz
• B. 100 and 200 MHz
• C. 121.5, 243.0, and 406.0 MHz
• D. 121.5, 243.0, and 858.0 MHz

Answer: (C)

The emergency locator transmitter (ELT) operates on frequencies specifically designated for distress signaling and search-and-rescue operations. The correct answer includes 121.5 MHz, which is designated for emergency use in aviation, and 243.0 MHz, which is the military distress frequency. The inclusion of 406.0 MHz represents the newer frequency adopted for satellite-based distress alerting, enhancing global response capabilities and improving the chances of quick recovery. These frequencies are critical within the framework of international agreements and standards set by aviation authorities to ensure that distress signals can be detected reliably and efficiently by search-and-rescue operations equipped to monitor these channels. The combination of these three frequencies aligns with regulations ensuring that ELTs can be reliably located and that they provide the most effective means of rescuing pilots and passengers in emergencies.

The emergency locator transmitter (ELT) operates on frequencies specifically designated for distress signaling and search-and-rescue operations. The correct answer includes 121.5 MHz, which is designated for emergency use in aviation, and 243.0 MHz, which is the military distress frequency. The inclusion of 406.0 MHz represents the newer frequency adopted for satellite-based distress alerting, enhancing global response capabilities and improving the chances of quick recovery.

These frequencies are critical within the framework of international agreements and standards set by aviation authorities to ensure that distress signals can be detected reliably and efficiently by search-and-rescue operations equipped to monitor these channels. The combination of these three frequencies aligns with regulations ensuring that ELTs can be reliably located and that they provide the most effective means of rescuing pilots and passengers in emergencies.