Question

Analog devices may transmit distress signals on the international distress frequencies of ______ MHz, _______ MHz Digital devices, and newer ELT models, transmit on the same international distress frequencies in addition to _______ MHz.

Answer 1

Analog devices use 121.5 and 243.0 MHz frequencies to send distress signals, while digital devices also use 406.025 MHz in addition to the analog frequencies.

Step-by-step explanation:

Analog devices may transmit distress signals on the international distress frequencies of 121.5 MHz and 243.0 MHz. Digital devices, and newer Emergency Locator Transmitter (ELT) models, also transmit on these frequencies in addition to 406.025 MHz. The use of these frequencies allows for effective communication as they are part of the radio-wave portion of the electromagnetic spectrum which tends not to get absorbed much by common building materials, ensuring a clear signal when transmitting distress calls.