In the UK, the Distress and Diversion Cell of the Royal Air Force provides continuous monitoring of 121.5 MHz and 243.0 MHz, with autotriangulation from a network of terrestrial receivers on both frequencies.
In the UK, the Distress and Diversion Cell of the Royal Air Force provides continuous monitoring of 1,21.5 MHz and 243.0 MHz with autotriangulation from a network of terrestrial receivers on both frequencies.