ITU-R M.690-1-1995 Technical Characteristics of Emergency Position-Indicating Radio Beacons (EPIRBs) Operating on the Carrier Frequencies of 121.5 MHz and 243 MHz
This Recommendation contains technical characteristics to which emergency position-indicating radio beacons (EPIRBs) intended to operate on the carrier frequency of 121.5 MHz and 243 MHz should conform.
ITU-R M.690-1-1995 history
1995ITU-R M.690-1-1995 Technical Characteristics of Emergency Position-Indicating Radio Beacons (EPIRBs) Operating on the Carrier Frequencies of 121.5 MHz and 243 MHz