.. _message-description-NAV-SVINFO:

NAV-SVINFO
----------

:name: NAV-SVINFO

:class: 0x01

:id: 0x30

:payload:

  #. `Empty`
  
  #. Fields(length=?)
       
         :iTOW:
           U4
       
         :numCh:
           U1
       
         :globalFlags:
           Bitfield(1)
           
             0:3: *chipGen*
       
         :reserved1:
           List
           
             - U1
           
             - U1
       
         :ch:
           KeyLoop(key="numCh"):
           
            Fields(length=12)
             
               :chn:
                 U1
             
               :svid:
                 U1
             
               :flags:
                 Bitfield(1)
                 
                   0: *svUsed*
                 
                   1: *diffCorr*
                 
                   2: *orbitAvail*
                 
                   3: *orbitEph*
                 
                   4: *unhealthy*
                 
                   5: *orbitAlm*
                 
                   6: *orbitAop*
                 
                   7: *smoothed*
             
               :quality:
                 Bitfield(1)
                 
                   0:4: *qualityInd*
             
               :cno:
                 U1
             
               :elev:
                 I1
             
               :azim:
                 I2
             
               :prRes:
                 I4