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Home : ITU-R : Publications : Recommendations : M Series : M.690 : M.5/BL/20 (01/2015) | Recently posted - Search Recommendations | ||||||||||||||||||||||||||||||||||||||||||||||||
M.690 : Technical characteristics of emergency position-indicating radio beacons operating on the carrier frequencies of 121.5 MHz and 243 MHz | |||||||||||||||||||||||||||||||||||||||||||||||||
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