Official GPS protocol documentation?

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14
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Searching for "GPS protocol" reveals many sources for processed GPS data, e.g. NMEA or binary outputs of GPS units.



Where is the official documentation for the GPS satellite - receiver protocol? Or any interesting supplemental material that might explain it?



Context: I'm especially interested in learning about how (e.g.) the almanac and ephemera are transmitted.










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  • 7




    Not official, but probably more helpful as the official specification will assume familiarity with RF: Homemade GPS Receiver
    – Simon Richter
    Sep 5 at 17:44






  • 3




    Why the close vote? This documentation could be part of an EE effort.
    – Sparky256
    Sep 5 at 23:58










  • @SimonRichter, that's a great reference. I updated the question to make it slightly more broad, if you want to post this comment as an answer I'll definitely upvote it.
    – Mark Harrison
    Sep 6 at 19:45














up vote
14
down vote

favorite
4












Searching for "GPS protocol" reveals many sources for processed GPS data, e.g. NMEA or binary outputs of GPS units.



Where is the official documentation for the GPS satellite - receiver protocol? Or any interesting supplemental material that might explain it?



Context: I'm especially interested in learning about how (e.g.) the almanac and ephemera are transmitted.










share|improve this question



















  • 7




    Not official, but probably more helpful as the official specification will assume familiarity with RF: Homemade GPS Receiver
    – Simon Richter
    Sep 5 at 17:44






  • 3




    Why the close vote? This documentation could be part of an EE effort.
    – Sparky256
    Sep 5 at 23:58










  • @SimonRichter, that's a great reference. I updated the question to make it slightly more broad, if you want to post this comment as an answer I'll definitely upvote it.
    – Mark Harrison
    Sep 6 at 19:45












up vote
14
down vote

favorite
4









up vote
14
down vote

favorite
4






4





Searching for "GPS protocol" reveals many sources for processed GPS data, e.g. NMEA or binary outputs of GPS units.



Where is the official documentation for the GPS satellite - receiver protocol? Or any interesting supplemental material that might explain it?



Context: I'm especially interested in learning about how (e.g.) the almanac and ephemera are transmitted.










share|improve this question















Searching for "GPS protocol" reveals many sources for processed GPS data, e.g. NMEA or binary outputs of GPS units.



Where is the official documentation for the GPS satellite - receiver protocol? Or any interesting supplemental material that might explain it?



Context: I'm especially interested in learning about how (e.g.) the almanac and ephemera are transmitted.







gps protocol standard






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edited Sep 6 at 19:48









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11516










asked Sep 5 at 17:37









Mark Harrison

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5,193215080







  • 7




    Not official, but probably more helpful as the official specification will assume familiarity with RF: Homemade GPS Receiver
    – Simon Richter
    Sep 5 at 17:44






  • 3




    Why the close vote? This documentation could be part of an EE effort.
    – Sparky256
    Sep 5 at 23:58










  • @SimonRichter, that's a great reference. I updated the question to make it slightly more broad, if you want to post this comment as an answer I'll definitely upvote it.
    – Mark Harrison
    Sep 6 at 19:45












  • 7




    Not official, but probably more helpful as the official specification will assume familiarity with RF: Homemade GPS Receiver
    – Simon Richter
    Sep 5 at 17:44






  • 3




    Why the close vote? This documentation could be part of an EE effort.
    – Sparky256
    Sep 5 at 23:58










  • @SimonRichter, that's a great reference. I updated the question to make it slightly more broad, if you want to post this comment as an answer I'll definitely upvote it.
    – Mark Harrison
    Sep 6 at 19:45







7




7




Not official, but probably more helpful as the official specification will assume familiarity with RF: Homemade GPS Receiver
– Simon Richter
Sep 5 at 17:44




Not official, but probably more helpful as the official specification will assume familiarity with RF: Homemade GPS Receiver
– Simon Richter
Sep 5 at 17:44




3




3




Why the close vote? This documentation could be part of an EE effort.
– Sparky256
Sep 5 at 23:58




Why the close vote? This documentation could be part of an EE effort.
– Sparky256
Sep 5 at 23:58












@SimonRichter, that's a great reference. I updated the question to make it slightly more broad, if you want to post this comment as an answer I'll definitely upvote it.
– Mark Harrison
Sep 6 at 19:45




@SimonRichter, that's a great reference. I updated the question to make it slightly more broad, if you want to post this comment as an answer I'll definitely upvote it.
– Mark Harrison
Sep 6 at 19:45










1 Answer
1






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25
down vote



accepted










The official documentation for GPS is available online at:



https://www.gps.gov/technical/



The portions you are probably most interested in are the Interface Control Documents, especially:



  • IS-GPS-200, "NAVSTAR GPS Space Segment / Navigation User Segment Interfaces"


  • IS-GPS-800, "NAVSTAR GPS Space Segment / User Segment L1C Interface"


These documents jointly define the portions of GPS used for navigation and timing. If you're specifically interested in how the almanac and epherema are transmitted, that's covered in the second document.






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    1 Answer
    1






    active

    oldest

    votes








    1 Answer
    1






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes








    up vote
    25
    down vote



    accepted










    The official documentation for GPS is available online at:



    https://www.gps.gov/technical/



    The portions you are probably most interested in are the Interface Control Documents, especially:



    • IS-GPS-200, "NAVSTAR GPS Space Segment / Navigation User Segment Interfaces"


    • IS-GPS-800, "NAVSTAR GPS Space Segment / User Segment L1C Interface"


    These documents jointly define the portions of GPS used for navigation and timing. If you're specifically interested in how the almanac and epherema are transmitted, that's covered in the second document.






    share|improve this answer


























      up vote
      25
      down vote



      accepted










      The official documentation for GPS is available online at:



      https://www.gps.gov/technical/



      The portions you are probably most interested in are the Interface Control Documents, especially:



      • IS-GPS-200, "NAVSTAR GPS Space Segment / Navigation User Segment Interfaces"


      • IS-GPS-800, "NAVSTAR GPS Space Segment / User Segment L1C Interface"


      These documents jointly define the portions of GPS used for navigation and timing. If you're specifically interested in how the almanac and epherema are transmitted, that's covered in the second document.






      share|improve this answer
























        up vote
        25
        down vote



        accepted







        up vote
        25
        down vote



        accepted






        The official documentation for GPS is available online at:



        https://www.gps.gov/technical/



        The portions you are probably most interested in are the Interface Control Documents, especially:



        • IS-GPS-200, "NAVSTAR GPS Space Segment / Navigation User Segment Interfaces"


        • IS-GPS-800, "NAVSTAR GPS Space Segment / User Segment L1C Interface"


        These documents jointly define the portions of GPS used for navigation and timing. If you're specifically interested in how the almanac and epherema are transmitted, that's covered in the second document.






        share|improve this answer














        The official documentation for GPS is available online at:



        https://www.gps.gov/technical/



        The portions you are probably most interested in are the Interface Control Documents, especially:



        • IS-GPS-200, "NAVSTAR GPS Space Segment / Navigation User Segment Interfaces"


        • IS-GPS-800, "NAVSTAR GPS Space Segment / User Segment L1C Interface"


        These documents jointly define the portions of GPS used for navigation and timing. If you're specifically interested in how the almanac and epherema are transmitted, that's covered in the second document.







        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited Sep 5 at 17:54

























        answered Sep 5 at 17:44









        duskwuff

        15.5k32545




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