DIN EN 300639:2001-10
Действует
Fixed radio systems - Point-to-point equipment - Sub-STM-1 digital radio systems operating in the 13 GHz, 15 GHz and 18 GHz frequency bands with about 28 MHz co-polar and 14 MHz cross-polar channel spacing (Endorsement of the English version EN 300639 V 1.3.1 (2001-02) as German Standard)
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