====== ThunderBolt States, Modes and Alarms ======!

=== Receiver Mode ===

  * 0 Automatic (2D/3D)
  * 1 Single Satellite (Time)
  * 2 Not used
  * 3 Horizontal (2D)
  * 4 Full Position (3D)
  * 5 DGPS Reference
  * 6 Clock Hold (2D)
  * 7 Overdetermined Clock
  * 8 Not Used

=== GPS Decoding ===

  * 0  Doing fixes
  * 1  Don’t have GPS time
  * 2 (3)  PDOP is too high
  * 3 (8)  No usable sats
  * 4 (9)  Only 1 usable sat
  * 5 (10) Only 2 usable sats
  * 6 (11) Only 3 usable sats
  * 7 (12) The chosen sat is unusable
  * 8 (16) TRAIM rejected the fix

Number in parenthesis is the actual code for the particular field.

=== Disciplining Mode ===

  * 0 Normal
  * 1 Power-Up
  * 2 Auto Holdover
  * 3 Manual Holdover
  * 4 Recovery
  * 5 Not Used
  * 6 Disciplining disabled
  * 7 Not Used
  * 8 Not Used

=== Disciplining Status ===

  * 0       Phase locking
  * 1       Oscillator warming up
  * 2       Frequency locking
  * 3       Placing PPS
  * 4       Initializing loop filter
  * 5       Compensating OCXO
  * 6       Inactive
  * 7       Not used
  * 8       Recovery mode

====  ====

Other useful information are the alarms. There are in two categories: Critical and Minor

=== Critical Alarms ===

  * ROM Checksum Error
  * RAM Check Failed
  * PowerSupply Failed
  * FPGA Check Failed
  * VCO At Rail

=== Minor Alarms ===

  * VCO Near Rail
  * Antenna Open
  * Antenna Shorted
  * Not Tracking Satellites
  * Not Disciplining
  * Survey In Progress
  * No Stored Position
  * Leap Second Pending
  * Test Mode