DIN EN 301387:2003-04
Действует
Fixed Radio Systems - Point-to-point equipment - Plesiochronous Digital Hierarchy (PDH) - Low and medium capacity digital radio systems operating in the frequency band 48,5 GHz to 50,2 GHz (Endorsement of the English version EN 301387 V 1.2.1 (2001-02) as German standard)
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