ETSI EN 301 721:1999 PDF

Scope: "The present document applies to Mobile Earth Stations (MES) providing Low Bit Rate Data Communications (LBRDC) using Low Earth Orbiting (LEO) satellites and which have the following characteristics: - the MES could be a Based MES (BMES)@ a Vehicle mounted MES (VMES)@ or a Portable MES (PMES); - the MESs operate through satellites in Low Earth Orbit (LEO) as part of a network providing Low Bit Rate Data Communications (LBRDC); - these radio equipment types are capable of operating in all or any part of the frequency bands The present document is intended to cover the provisions of Article 3.2@ which states that ""... radio equipment shall be so constructed that it effectively uses the spectrum allocated to terrestrial/space radio communications and orbital resources so as to avoid harmful interference."" of Directive 1999/5/EC [1] (RTTE Directive). In addition to the present document@ other ENs that specify technical requirements in respect of essential requirements under other parts of Article 3 of the RTTE Directive [1] may apply to equipment within the scope of the present document. NOTE 1: A list of such ENs is included on the ETSI web site. NOTE 2: The MESs are controlled and monitored by a Network Control Facility (NCF). The NCF is outside the scope of the present document."

ETSI EN 301 721:1999 history

2016 ETSI EN 301 721:2016 Satellite Earth Stations and Systems (SES); Harmonised Standard for Mobile Earth Stations (MES) providing Low Bit Rate Data Communications (LBRDC) using Low Earth Orbiting (LEO) satellites operating below 1 GHz frequency band covering the essential requir
2001 ETSI EN 301 721:2001 Satellite Earth Stations and Systems (SES); Harmonized EN for Mobile Earth Stations (MES) Providing Low Bit Rate Data Communications (LBRDC) Using Low Earth Orbiting (LEO) Satellites Operating Below 1 GHz Covering Essential Requirements under Article 3.2
2000 ETSI EN 301 721:2000 Satellite Earth Stations and Systems (SES); Harmonized EN for Mobile Earth Stations (MES) Providing Low Bit Rate Data Communications (LBRDC) Using Low Earth Orbiting (LEO) Satellites Operating Below 1 GHz Covering Essential Requirements under Article 3.2
1999 ETSI EN 301 721:1999 Satellite Earth Stations and Systems (SES); Harmonized EN for Mobile Earth Stations (MES) Providing Low Bit Rate Data Communications (LBRDC) Using Low Earth Orbiting (LEO) Satellites Operating Below 1 GHz Covering Essential Requirements under Article 3.2