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gptkbp:instance_of
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gptkb:satellite
|
|
gptkbp:architecture
|
distributed architecture
|
|
gptkbp:availability
|
built-in redundancy features
|
|
gptkbp:communication
|
broadband
|
|
gptkbp:coverage
|
yes
|
|
gptkbp:data_link_layer
|
TDMA
|
|
gptkbp:data_transmission
|
secure and jam-resistant
|
|
gptkbp:data_usage
|
up to 1.5 Mbps
|
|
gptkbp:debut
|
gptkb:1994
gptkb:2003
|
|
gptkbp:developed_by
|
gptkb:United_States_Department_of_Defense
|
|
gptkbp:education
|
provided to military personnel
|
|
gptkbp:emergency_communications
|
capable
|
|
gptkbp:first_generation
|
gptkb:Milstar_I
gptkb:Milstar_II
|
|
gptkbp:frequency
|
high
global
UHF
|
|
gptkbp:frequency_hopping
|
yes
|
|
gptkbp:future_plans
|
upgrades and enhancements planned
|
|
gptkbp:home_ground
|
U. S. military ground stations
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Milstar satellite system
|
|
gptkbp:is_integrated_with
|
with allied forces
with other military systems
|
|
gptkbp:is_tested_for
|
extensive testing before deployment
|
|
gptkbp:launch_price
|
hundreds of millions USD
|
|
gptkbp:launch_site
|
gptkb:Cape_Canaveral_Space_Force_Station
|
|
gptkbp:launch_vehicle
|
gptkb:Atlas_II
|
|
gptkbp:maintenance
|
performed by U. S. Air Force
|
|
gptkbp:manufacturer
|
gptkb:Lockheed_Martin
|
|
gptkbp:military_technology
|
yes
|
|
gptkbp:mission_type
|
strategic and tactical communications
|
|
gptkbp:modulation
|
QPSK
|
|
gptkbp:network
|
gptkb:constellation
|
|
gptkbp:operational_since
|
gptkb:1994
|
|
gptkbp:operational_status
|
active
|
|
gptkbp:orbit_type
|
gptkb:geostationary_orbit
gptkb:5
15 years
digital
approximately 5,000 kg
remote control from ground stations
phased array antenna
highly resilient
|
|
gptkbp:performance
|
low
|
|
gptkbp:power_source
|
solar panels
|
|
gptkbp:purpose
|
secure military communications
|
|
gptkbp:reliability
|
high
|
|
gptkbp:security
|
yes
military-grade encryption
|
|
gptkbp:services_provided
|
gptkb:United_States_Air_Force
|
|
gptkbp:successor
|
gptkb:Wideband_Global_SATCOM
|
|
gptkbp:track
|
real-time tracking available
|
|
gptkbp:upgrades
|
ongoing
|
|
gptkbp:user
|
restricted to military personnel
|
|
gptkbp:user_base
|
gptkb:U._S._military
|
|
gptkbp:user_countries
|
limited
|
|
gptkbp:video_output
|
used for efficiency
|
|
gptkbp:bfsParent
|
gptkb:Hughes_Aircraft_Company
|
|
gptkbp:bfsLayer
|
5
|