Some 121.5 MHz emergency beacons also transmit on 243.0 MHz, will this frequency also be phased-out?
Yes. The 243.0 MHz frequency band is primarily a military distress frequency. Distress signals at this frequency work in the same manner as distress signals from 121.5 MHz emergency beacons. Therefore, they have the same disadvantages. The United States Department of Defense has stated that the satellite alerting of 243.0 MHz is not required. Many military agencies have already begun to replace 121.5/243.0 MHz beacons with 406 MHz beacons.
Related Questions
- What is the difference between emergency beacons that operate at 121.5 MHz and those that operate at 406 MHz?
- If satellite alerting is terminated then how will alerting take place for 121.5 MHz emergency beacons?
- Some 121.5 MHz emergency beacons also transmit on 243.0 MHz, will this frequency also be phased-out?
