GSD4t

Introduction

According to ifixit the Galaxy Nexus's GPS is a GSD4t

Information gathered so far.

  • The GPS is connected to /dev/ttyO0
  • the init sequence require the following special serial settings:
    • part of the init sequence is at 460800 Bps
    • part of it is at:
      termios.c_cflag = CRTSCTS | CS8 | CREAD | CLOCAL | B115200;
    • Here are some logs:
      $ grep "c_cflags=" -r *
      strace.903:1345240189.403289 ioctl(1, SNDCTL_TMR_TIMEBASE or TCGETS, {c_iflags=0x500, c_oflags=0x5, c_cflags=0xbf, c_lflags=0x8a3b, c_line=0, c_cc="\x03\x1c\x7f\x15\x04\x00\x01\x00\x11\x13\x1a\x00\x12\x0f\x17\x16\x00\x00\x00"}) = 0
      strace.909:1345240195.711608 ioctl(13, SNDCTL_TMR_TIMEBASE or TCGETS, {c_iflags=0x4, c_oflags=0, c_cflags=0x800018b2, c_lflags=0, c_line=0, c_cc[VMIN]=1, c_cc[VTIME]=0, c_cc="\x03\x1c\x7f\x15\x04\x00\x01\x00\x11\x13\x1a\x00\x12\x0f\x17\x16\x00\x00\x00"}) = 0
      strace.909:1345240195.712615 ioctl(13, SNDCTL_TMR_START or TCSETS, {c_iflags=0x4, c_oflags=0, c_cflags=0x18b2, c_lflags=0, c_line=0, c_cc[VMIN]=1, c_cc[VTIME]=0, c_cc="\x03\x1c\x7f\x15\x04\x00\x01\x00\x11\x13\x1a\x00\x12\x0f\x17\x16\x00\x00\x00"}) = 0
      strace.909:1345240196.290496 ioctl(13, SNDCTL_TMR_TIMEBASE or TCGETS, {c_iflags=0x4, c_oflags=0, c_cflags=0x18b2, c_lflags=0, c_line=0, c_cc[VMIN]=1, c_cc[VTIME]=0, c_cc="\x03\x1c\x7f\x15\x04\x00\x01\x00\x11\x13\x1a\x00\x12\x0f\x17\x16\x00\x00\x00"}) = 0
      strace.909:1345240196.291015 ioctl(13, SNDCTL_TMR_START or TCSETS, {c_iflags=0x4, c_oflags=0, c_cflags=0x18b2, c_lflags=0, c_line=0, c_cc[VMIN]=1, c_cc[VTIME]=0, c_cc="\x03\x1c\x7f\x15\x04\x00\x01\x00\x11\x13\x1a\x00\x12\x0f\x17\x16\x00\x00\x00"}) = 0
      strace.909:1345240196.291870 ioctl(13, SNDCTL_TMR_TIMEBASE or TCGETS, {c_iflags=0x4, c_oflags=0, c_cflags=0x18b2, c_lflags=0, c_line=0, c_cc[VMIN]=1, c_cc[VTIME]=0, c_cc="\x03\x1c\x7f\x15\x04\x00\x01\x00\x11\x13\x1a\x00\x12\x0f\x17\x16\x00\x00\x00"}) = 0
      strace.909:1345240196.292358 ioctl(13, SNDCTL_TMR_START or TCSETS, {c_iflags=0x4, c_oflags=0, c_cflags=0x18b2, c_lflags=0, c_line=0, c_cc[VMIN]=1, c_cc[VTIME]=0, c_cc="\x03\x1c\x7f\x15\x04\x00\x01\x00\x11\x13\x1a\x00\x12\x0f\x17\x16\x00\x00\x00"}) = 0
      strace.909:1345240196.370361 ioctl(13, SNDCTL_TMR_TIMEBASE or TCGETS, {c_iflags=0x4, c_oflags=0, c_cflags=0x18b2, c_lflags=0, c_line=0, c_cc[VMIN]=1, c_cc[VTIME]=0, c_cc="\x03\x1c\x7f\x15\x04\x00\x01\x00\x11\x13\x1a\x00\x12\x0f\x17\x16\x00\x00\x00"}) = 0
      strace.909:1345240196.370880 ioctl(13, SNDCTL_TMR_START or TCSETS, {c_iflags=0x4, c_oflags=0, c_cflags=0x18b4, c_lflags=0, c_line=0, c_cc[VMIN]=1, c_cc[VTIME]=0, c_cc="\x03\x1c\x7f\x15\x04\x00\x01\x00\x11\x13\x1a\x00\x12\x0f\x17\x16\x00\x00\x00"}) = 0
      strace.909:1345240201.072235 ioctl(13, SNDCTL_TMR_TIMEBASE or TCGETS, {c_iflags=0x4, c_oflags=0, c_cflags=0x18b4, c_lflags=0, c_line=0, c_cc[VMIN]=1, c_cc[VTIME]=0, c_cc="\x03\x1c\x7f\x15\x04\x00\x01\x00\x11\x13\x1a\x00\x12\x0f\x17\x16\x00\x00\x00"}) = 0
      strace.909:1345240201.073638 ioctl(13, SNDCTL_TMR_START or TCSETS, {c_iflags=0x4, c_oflags=0, c_cflags=0x18b2, c_lflags=0, c_line=0, c_cc[VMIN]=1, c_cc[VTIME]=0, c_cc="\x03\x1c\x7f\x15\x04\x00\x01\x00\x11\x13\x1a\x00\x12\x0f\x17\x16\x00\x00\x00"}) = 0
      strace.910:1345240201.398132 ioctl(13, SNDCTL_TMR_TIMEBASE or TCGETS, {c_iflags=0x4, c_oflags=0, c_cflags=0x18b2, c_lflags=0, c_line=0, c_cc[VMIN]=1, c_cc[VTIME]=0, c_cc="\x03\x1c\x7f\x15\x04\x00\x01\x00\x11\x13\x1a\x00\x12\x0f\x17\x16\x00\x00\x00"}) = 0
      strace.910:1345240201.404327 ioctl(13, SNDCTL_TMR_START or TCSETS, {c_iflags=0x4, c_oflags=0, c_cflags=0x800018b2, c_lflags=0, c_line=0, c_cc[VMIN]=1, c_cc[VTIME]=0, c_cc="\x03\x1c\x7f\x15\x04\x00\x01\x00\x11\x13\x1a\x00\x12\x0f\x17\x16\x00\x00\x00"}) = 0
      strace.910:1345240201.406768 ioctl(13, SNDCTL_TMR_TIMEBASE or TCGETS, {c_iflags=0x4, c_oflags=0, c_cflags=0x800018b2, c_lflags=0, c_line=0, c_cc[VMIN]=1, c_cc[VTIME]=0, c_cc="\x03\x1c\x7f\x15\x04\x00\x01\x00\x11\x13\x1a\x00\x12\x0f\x17\x16\x00\x00\x00"}) = 0
      strace.910:1345240201.408294 ioctl(13, SNDCTL_TMR_START or TCSETS, {c_iflags=0x4, c_oflags=0, c_cflags=0x800018b2, c_lflags=0, c_line=0, c_cc[VMIN]=1, c_cc[VTIME]=0, c_cc="\x03\x1c\x7f\x15\x04\x00\x01\x00\x11\x13\x1a\x00\x12\x0f\x17\x16\x00\x00\x00"}) = 0
      strace.917:1345240203.624877 ioctl(24, SNDCTL_TMR_TIMEBASE or TCGETS, {c_iflags=0x4, c_oflags=0, c_cflags=0x800018b2, c_lflags=0, c_line=0, c_cc[VMIN]=1, c_cc[VTIME]=0, c_cc="\x03\x1c\x7f\x15\x04\x00\x01\x00\x11\x13\x1a\x00\x12\x0f\x17\x16\x00\x00\x00"}) = 0
      strace.917:1345240203.626007 ioctl(24, SNDCTL_TMR_START or TCSETS, {c_iflags=0x4, c_oflags=0, c_cflags=0x800018b2, c_lflags=0, c_line=0, c_cc[VMIN]=1, c_cc[VTIME]=0, c_cc="\x03\x1c\x7f\x15\x04\x00\x01\x00\x11\x13\x1a\x00\x12\x0f\x17\x16\x00\x00\x00"}) = 0
      strace.918:1345240204.809295 ioctl(24, SNDCTL_TMR_TIMEBASE or TCGETS, {c_iflags=0x4, c_oflags=0, c_cflags=0x800018b2, c_lflags=0, c_line=0, c_cc[VMIN]=1, c_cc[VTIME]=0, c_cc="\x03\x1c\x7f\x15\x04\x00\x01\x00\x11\x13\x1a\x00\x12\x0f\x17\x16\x00\x00\x00"}) = 0
      strace.918:1345240204.809814 ioctl(24, SNDCTL_TMR_START or TCSETS, {c_iflags=0x4, c_oflags=0, c_cflags=0x800018b2, c_lflags=0, c_line=0, c_cc[VMIN]=1, c_cc[VTIME]=0, c_cc="\x03\x1c\x7f\x15\x04\x00\x01\x00\x11\x13\x1a\x00\x12\x0f\x17\x16\x00\x00\x00"}) = 0
      strace.918:1345240204.810638 ioctl(24, SNDCTL_TMR_TIMEBASE or TCGETS, {c_iflags=0x4, c_oflags=0, c_cflags=0x800018b2, c_lflags=0, c_line=0, c_cc[VMIN]=1, c_cc[VTIME]=0, c_cc="\x03\x1c\x7f\x15\x04\x00\x01\x00\x11\x13\x1a\x00\x12\x0f\x17\x16\x00\x00\x00"}) = 0
      strace.918:1345240204.811157 ioctl(24, SNDCTL_TMR_START or TCSETS, {c_iflags=0x4, c_oflags=0, c_cflags=0x800018b2, c_lflags=0, c_line=0, c_cc[VMIN]=1, c_cc[VTIME]=0, c_cc="\x03\x1c\x7f\x15\x04\x00\x01\x00\x11\x13\x1a\x00\x12\x0f\x17\x16\x00\x00\x00"}) = 0
      
  • After the init sequence the GPS is at 115200 8N1 and is useing the SIRF protocol
  • The free software gpsd for GNU/Linux fails to recognize the protocol:
    
    gpsd:UNK: 00000000: character '.' [a0], new state: SIRF_LEADER_1
    gpsd:UNK: 00000001: character '.' [a2], new state: SIRF_LEADER_2
    gpsd:UNK: 00000002: character '.' [00], new state: SIRF_LENGTH_1
    gpsd:UNK: 00000003: character '.' [0a], new state: SIRF_PAYLOAD
    gpsd:UNK: 00000004: character '.' [f9], new state: SIRF_PAYLOAD
    gpsd:UNK: 00000005: character '.' [00], new state: SIRF_PAYLOAD
    gpsd:UNK: 00000006: character '.' [04], new state: SIRF_PAYLOAD
    gpsd:UNK: 00000007: character '.' [00], new state: SIRF_PAYLOAD
    gpsd:UNK: 00000008: character 'k' [6b], new state: SIRF_PAYLOAD
    gpsd:UNK: 00000009: character '.' [90], new state: SIRF_PAYLOAD
    gpsd:UNK: 00000010: character '.' [87], new state: SIRF_PAYLOAD
    gpsd:UNK: 00000011: character '.' [e1], new state: SIRF_PAYLOAD
    gpsd:UNK: 00000012: character '.' [0a], new state: SIRF_PAYLOAD
    gpsd:UNK: 00000013: character '.' [14], new state: SIRF_PAYLOAD
    gpsd:UNK: 00000014: character '#' [23], new state: SIRF_PAYLOAD
    gpsd:UNK: 00000015: character '.' [09], new state: SIRF_DELIVERED
    gpsd:UNK: 00000016: character '`' [60], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000017: character '.' [a2], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000018: character '.' [00], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000019: character '.' [0a], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000020: character '.' [f9], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000021: character '.' [00], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000022: character '.' [04], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000023: character '.' [00], new state: GROUND_STATE
    gpsd:UNK: ISGPS syncing at byte 24: 0x00000001
    gpsd:UNK: ISGPS syncing at byte 24: 0x00000003
    gpsd:UNK: ISGPS syncing at byte 24: 0x00000006
    gpsd:UNK: ISGPS syncing at byte 24: 0x0000000d
    gpsd:UNK: ISGPS syncing at byte 24: 0x0000001a
    gpsd:UNK: ISGPS syncing at byte 24: 0x00000035
    gpsd:UNK: ISGPS lock never achieved
    gpsd:UNK: 00000024: character 'k' [6b], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000025: character '.' [90], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000026: character '.' [87], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000027: character '.' [e1], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000028: character '.' [0a], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000029: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: 00000030: character '#' [23], new state: COMMENT_BODY
    gpsd:UNK: 00000030: character pushed back
    gpsd:UNK: 00000030: character '.' [09], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000031: character '.' [09], new state: GROUND_STATE
    gpsd:UNK: ISGPS syncing at byte 32: 0x0000006a
    gpsd:UNK: ISGPS syncing at byte 32: 0x000000d4
    gpsd:UNK: ISGPS syncing at byte 32: 0x000001a8
    gpsd:UNK: ISGPS syncing at byte 32: 0x00000350
    gpsd:UNK: ISGPS syncing at byte 32: 0x000006a0
    gpsd:UNK: ISGPS syncing at byte 32: 0x00000d41
    gpsd:UNK: ISGPS lock never achieved
    gpsd:UNK: 00000032: character '`' [60], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000033: character '.' [05], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000034: character '.' [bc], new state: GROUND_STATE
    gpsd:UNK: ISGPS syncing at byte 35: 0x00001a82
    gpsd:UNK: ISGPS syncing at byte 35: 0x00003504
    gpsd:UNK: ISGPS syncing at byte 35: 0x00006a09
    gpsd:UNK: ISGPS syncing at byte 35: 0x0000d413
    gpsd:UNK: ISGPS syncing at byte 35: 0x0001a827
    gpsd:UNK: ISGPS syncing at byte 35: 0x0003504e
    gpsd:UNK: ISGPS lock never achieved
    gpsd:UNK: 00000035: character '\' [5c], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000036: character ' ' [20], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000037: character ' ' [20], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000038: character '.' [14], new state: GROUND_STATE
    gpsd:SPIN: packet_get() fd 5 -> 128 (0)
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000039: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000040: character '.' [06], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000041: character '.' [19], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000042: character '.' [06], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000043: character '.' [07], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000044: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000045: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000046: character '.' [06], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000047: character '.' [09], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000048: character '.' [04], new state: GROUND_STATE
    gpsd:UNK: 00000049: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000050: character '.' [14], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000051: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000052: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000053: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000054: character '.' [06], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000055: character '.' [1b], new state: GROUND_STATE
    gpsd:UNK: 00000056: character '.' [02], new state: NAVCOM_LEADER_1
    gpsd:UNK: 00000057: character '.' [01], new state: GROUND_STATE
    gpsd:UNK: 00000058: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000059: character '.' [14], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000060: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000061: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000062: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000063: character '.' [06], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000064: character '.' [08], new state: GROUND_STATE
    gpsd:UNK: 00000065: character '.' [02], new state: NAVCOM_LEADER_1
    gpsd:UNK: 00000066: character '.' [01], new state: GROUND_STATE
    gpsd:UNK: 00000067: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000068: character '.' [14], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000069: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000070: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000071: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000072: character '.' [06], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000073: character '.' [13], new state: GROUND_STATE
    gpsd:UNK: 00000074: character '.' [02], new state: NAVCOM_LEADER_1
    gpsd:UNK: 00000075: character '.' [01], new state: GROUND_STATE
    gpsd:UNK: 00000076: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000077: character '.' [14], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000078: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000079: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000080: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000081: character '.' [06], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000082: character '.' [1d], new state: GROUND_STATE
    gpsd:UNK: 00000083: character '.' [02], new state: NAVCOM_LEADER_1
    gpsd:UNK: 00000084: character '.' [01], new state: GROUND_STATE
    gpsd:UNK: 00000085: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000086: character '.' [14], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000087: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000088: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000089: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000090: character '.' [06], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000091: character '.' [06], new state: GROUND_STATE
    gpsd:UNK: 00000092: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000093: character '.' [01], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000094: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: 00000095: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000096: character '.' [14], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000097: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000098: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000099: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000100: character '.' [06], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000101: character '.' [11], new state: GROUND_STATE
    gpsd:UNK: 00000102: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000103: character '.' [01], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000104: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: 00000105: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000106: character '.' [14], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000107: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000108: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000109: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000110: character '.' [06], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000111: character '.' [04], new state: GROUND_STATE
    gpsd:UNK: 00000112: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000113: character '.' [01], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000114: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: 00000115: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000116: character '.' [14], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000117: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000118: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000119: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000120: character '.' [06], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000121: character '.' [0b], new state: GROUND_STATE
    gpsd:UNK: 00000122: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000123: character '.' [01], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000124: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: 00000125: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000126: character '.' [14], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000127: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000128: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000129: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000130: character '.' [06], new state: GROUND_STATE
    gpsd:UNK: 00000131: character '.' [02], new state: NAVCOM_LEADER_1
    gpsd:UNK: 00000132: character '.' [01], new state: GROUND_STATE
    gpsd:UNK: 00000133: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000134: character '.' [01], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000135: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: 00000136: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000137: character '.' [14], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000138: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000139: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000140: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000141: character '.' [06], new state: GROUND_STATE
    gpsd:UNK: 00000142: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000143: character '.' [01], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000144: character '.' [01], new state: GROUND_STATE
    gpsd:UNK: 00000145: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000146: character '.' [01], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000147: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: 00000148: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000149: character '.' [14], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000150: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000151: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000152: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000153: character '.' [06], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000154: character '.' [03], new state: GROUND_STATE
    gpsd:UNK: 00000155: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000156: character '.' [01], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000157: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: 00000158: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000159: character '.' [14], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000160: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000161: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000162: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000163: character '.' [06], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000164: character '.' [05], new state: GROUND_STATE
    gpsd:UNK: 00000165: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000166: character '.' [01], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000167: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: 00000168: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000169: character '.' [14], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000170: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000171: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000172: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000173: character '.' [06], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000174: character '.' [07], new state: GROUND_STATE
    gpsd:UNK: 00000175: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000176: character '.' [01], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000177: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: 00000178: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000179: character '.' [14], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000180: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000181: character '.' [14], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000182: character '%' [25], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000183: character '.' [06], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000184: character '.' [0c], new state: GROUND_STATE
    gpsd:UNK: 00000185: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000186: character '.' [01], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000187: character 'M' [4d], new state: GROUND_STATE
    gpsd:UNK: 00000188: character '.' [01], new state: SUPERSTAR2_LEADER
    gpsd:UNK: 00000189: character 'M' [4d], new state: SUPERSTAR2_ID1
    gpsd:UNK: 00000190: character '.' [91], new state: GROUND_STATE
    gpsd:UNK: ISGPS syncing at byte 191: 0x0006a09d
    gpsd:UNK: ISGPS syncing at byte 191: 0x000d413a
    gpsd:UNK: ISGPS syncing at byte 191: 0x001a8275
    gpsd:UNK: ISGPS syncing at byte 191: 0x003504eb
    gpsd:UNK: ISGPS syncing at byte 191: 0x006a09d6
    gpsd:UNK: ISGPS syncing at byte 191: 0x00d413ac
    gpsd:UNK: ISGPS lock never achieved
    gpsd:UNK: 00000191: character 'M' [4d], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000192: character '.' [91], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000193: character '.' [b0], new state: GROUND_STATE
    gpsd:UNK: ISGPS word tag not correct, skipping byte
    gpsd:UNK: 00000194: character '.' [b3], new state: GROUND_STATE
    

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