| gptkbp:instanceOf | gptkb:military_satellite_communication_system 
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                                | gptkbp:abilities | survivable communications anti-jam
 
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                                | gptkbp:countryOfOrigin | gptkb:United_States 
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                                | gptkbp:covers | global 
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                                | gptkbp:duration | 10 years (design life) 
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                                | gptkbp:encryption | end-to-end encryption 
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                                | gptkbp:frequency | gptkb:EHF SHF
 
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                                | gptkbp:latestReleaseVersion | 2003-04-08 
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                                | gptkbp:launchDate | 1994-02-07 
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                                | gptkbp:launchVehicle | gptkb:Titan_IV 
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                                | gptkbp:manufacturer | gptkb:Lockheed_Martin 
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                                | gptkbp:numberOfLaunches | 6 
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                                | gptkbp:numberOfSatellites | 5 
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                                | gptkbp:operator | gptkb:United_States_Air_Force 
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                                | gptkbp:orbitType | geosynchronous 
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                                | gptkbp:powerSource | solar panels 
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                                | gptkbp:purpose | secure military communications 
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                                | gptkbp:relatedTo | gptkb:Defense_Satellite_Communications_System_(DSCS) AEHF satellite system
 
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                                | gptkbp:replacedBy | gptkb:Advanced_Extremely_High_Frequency_(AEHF)_system 
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                                | gptkbp:status | operational (as of early 2020s) 
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                                | gptkbp:targetUser | gptkb:United_States_Department_of_Defense 
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                                | gptkbp:weight | ~4500 kg (per satellite) 
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                                | gptkbp:bfsParent | gptkb:Advanced_EHF_satellite 
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                                | gptkbp:bfsLayer | 7 
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                                | https://www.w3.org/2000/01/rdf-schema#label | Milstar satellite system 
 |