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M.690 : Transmission characteristics of emergency position-indicating radio beacons (EPIRBs) operating on carrier frequencies of 121.5 MHz and 243 MHz

Recommendation M.690-0 (06/90)

Approved in 1990-06

Status : Superseded

Replaced by Recommendation M.690-1 (10/95)

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7937 bytes 2001-06-01 E 60000 
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8590 bytes 2001-06-01 S 60000 
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