DIN EN 301277:2001-12
Действует
Fixed Radio Systems - Point-to-point equipment - High capacity digital radio systems transmitting STM-4 or 4 x STM-1 in a 40 MHz radio frequency channel using Co-Channel Dual Polarized (CCDP) operation (Endorsement of the English version EN 301277 V 1.2.1 (2000-02) as German standard)
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