ETSI EN 302 448 V1.1.1 (2007) Satellite Earth Stations and Systems (SES); Harmonized EN for tracking
标准简介
ETSI EN 302 448 V1.1.1 (2007) Satellite Earth Stations and Systems (SES); Harmonized EN for tracking Earth Stations on Trains (ESTs) operating in the 1412 GHz frequency bands covering essential requir
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