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  • GNSS
    Discussion related to Global Navigation Satellite Systems
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  • GPS
    Discussion related to the US Global Positioning System
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    Last post GPS III SV04 Receives Operati…
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  • GLONASS
    Discussion related to the Soviet GLObal NAvigation Satellite System
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    Last post GLONASS CDMA signals now on L…
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  • GALILEO
    Discussion related to the European Union satellite navigation system
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    Last post SpaceX successfully launches …
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  • BeiDou
    Discussion related to the Chinese BDS satellite navigation system
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    Last post China launches CentiSpace-1 n…
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  • NavIC
    Discussion related to the NAVigation with Indian Constellation, or Indian Regional Navigation Satellite System (IRNSS)
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  • WAAS
    Discussion related to the United States (SBAS) Wide Area Augmentation System
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  • EGNOS
    Discussion related to the European Union (SBAS) European Geostationary Navigation Overlay Service
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  • MSAS
    Discussion related to the Japanese (SBAS) Multi-functional Satellite Augmentation System
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  • GAGAN
    Discussion related to the Indian (SBAS) GPS Aided Geo Augmented Navigation system
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  • QZSS
    Discussion related to the Japanese (SBAS) Quasi-Zenith Satellite System ("Michibiki")
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  • SDCM
    Discussion related to the Russian (SBAS) System for Differential Corrections and Monitoring
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  • SNAS
    Discussion related to the Chinese (SBAS) Satellite Navigation Augmentation System
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  • SouthPAN
    Discussion related to the Australian + New Zealand (SBAS) Satellite Navigation Augmentation System
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    Last post Garmin Devices Do Not Support…
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  • Iridium
    Discussion related to the Iridium global communication satellite system
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  • HAM
    Discussion related to HAM Radio activities
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  • GMRS
    Discussion related to GMRS Radio activities
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  • MURS
    Discussion related to MURS Radio activities
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  • General Radio
    Discussion related to General Radio activities
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