Hätäsignaalitaajuus
Hätäsignaalitaajuus refers to specific radio frequencies designated for distress calls and emergency communications. These frequencies are crucial for maritime, aviation, and land-based emergency services to ensure prompt and reliable communication during critical situations.
In maritime contexts, the international distress frequency is 2182 kHz for radiotelephony and 4125 kHz for
Aviation uses 121.5 MHz as an aeronautical emergency frequency for voice communications. Satellite-based systems also play
Land-based emergency services, such as police, fire, and ambulance, often utilize dedicated private radio frequencies. However,