Question

VHF emergency frequency monitored by most ground facilities is ________.

1) 121.5 MHz
2) 243 MHz
3) 406 MHz
4) 121.6 MHz

Answer 1

The VHF emergency frequency monitored by most ground facilities is 121.5 MHz, which is the international distress frequency for aviation and maritime communication.

Step-by-step explanation:

The VHF (Very High Frequency) emergency frequency that is monitored by most ground facilities is 121.5 MHz. This frequency is crucial because it is the international distress frequency for both aviation and maritime communication.

The frequency range for VHF television channels is between 54 to 88 MHz and 174 to 222 MHz, and for UHF (Ultra High Frequency), it is from 470 to 1000 MHz, signifying that the emergency VHF radio frequency falls well below these higher television broadcast frequency ranges. It is important for safety and quick rescue response that operators monitor this frequency.