$PGLOR,4,FTS - Factory Test Status
 $PGLOR,4,FTS,1,-124.4,-124.5,dBm,49.6,49.5,49.6,49.5,dBHz,380.2,0.1,100.0,OK,123.1,222,222,0,3,-15,-15,3.3,4.0,4.0,4.0,t,x*57
        1  2  3   4      5     6   7    8    9    A    B    C     D    E    F  G     H   I  J K L   M   N   O   P   Q   R S 

The fields are:

  • 1 - Sentence version [4]
  • 2 - Message name
  • 3 - Satellite id (three different types, field always present):
    • PRN set by the req_ftest element (for GPS satellites)
    • FCN set by the req_ftest element (for GLONASS satellites)
    • "CW" for continuous wave testing (see FTS,CW definition below).
  • 4 - Last observed estimation of the signal strength referenced to the antenna port with assumption of end to end noise figure configured through the RfType attribute; (Field is empty if the signal is not detected or lost) In the case of CW, this is the best signal strength seen.
  • 5 - Average estimation of the signal strength referenced to the antenna port over x seconds period, where x is a "avg_int_sec" attribute of the req_ftest configuration element ; (Reports empty field before acquisition of GPS signal, and x-1 samples between repeated reports after acquisition)
  • 6 - Units of two fields above [dBm]
  • 7 - Last observed estimation of the C/No referenced to the antenna port with assumption of end to end noise figure configured through the RfType attribute; (Field is empty if the signal is not detected or lost)
  • 8 - Average estimation of the C/No referenced to the antenna port over x seconds period, where x is a "avg_int_sec" attribute of the req_ftest configuration element; (Reports empty field before acquisition of GPS signal, and x-1 samples between repeated reports after acquisition)
  • 9 - Last observed estimation of the C/No seen at the baseband processor; (Field is empty if the signal is not detected or lost)
  • A - Average estimation of the C/No [dB Hz] over x seconds period seen at the baseband processor, where x is a "avg_int_sec" attribute of the req_ftest configuration element; (Reports empty field before acquisition of GPS signal, and x-1 samples between repeated reports after acquisition)
  • B - Units of two fields above [dB Hz]
  • C - Last seen ref clock offset [ppb]
  • D - Uncertainty of the value above [ppb]
  • E - RTC clock offset [ppm]
  • F - CNTIN measurement status
    • NU - Not used
    • OK - OK
    • NI - No input frequency was detected on CNTIN pin
    • UD - Platform HAL failed to call RefFreqStatus() on GlEngineOnFreqUpdate callback request
    • UC - Platform HAL reported reference frequency as unreliable during the CNTIN interval
  • G - TCXO offset as measured by CNTIN [ppb] ( Field is empty if CNTIN is failed or not configured)
  • H - Number of successfully decoded words
  • I - Total number of decoding attempts
  • J - Word Error Rate [percent]
  • K - Energy Drop-Out Counter.
  • L - RF Analog AGC I gain/RF Analog AGC gain (GPS)
  • M - RF Analog AGC Q gain/RF Digital AGC gain (GPS
  • N - RF Digital AGC I gain/RF Analog AGC gain (GLNS)
  • O - RF Digital AGC Q gain/RF Digital AGC gain (GLNS)
  • P - RF Analog AGC gain (RESERVED)
  • Q - RF Digital AGC gain (RESERVED)
  • R - AGC type where t can be: I - I/Q, C - constellation
  • S - GNSS System ID, where x can be: G - GPS, R - GLONASS, Q - QZSS, S - SBAS, B - BEIDOU, A - GALILEO
  • CC - checksum

The carrier-wave PGLOR,FTS output is slightly different:

 $PGLOR,4,FTS,CW,-124.8,-dBm,126886,0.7,ppb,G*30
        1  2  3   4      5     6     7   8  9

The fields are:

  • 1 - Sentence version [4]
  • 2 - Message name
  • 3 - "CW" for continuous wave testing.
  • 4 - Best CW signal strength seen.
  • 5 - Units of CW signal strength [dBm]
  • 6 - Frequency offset of CW signal (200KHz should be 126950.27 ppb)
  • 7 - Uncertainty of frequency offset.
  • 8 - Units of two fields above [ppb]
  • 9 - GNSS System ID, where x can be: G - GPS, R - GLONASS, Q - QZSS, S - SBAS.
  • CC - checksum

[Version: 4]

Previous versions:

[Version: 3] $PGLOR,3,FTS - Factory Test Status

[Version: 2] $PGLOR,2,FTS - Factory Test Status

[Version: 1] $PGLOR,1,FTS - Factory Test Status

[Version: 0] $PGLOR,0,FTS - Factory Test Status

[Version: before GLL v18] $PGLOR,FTS - Factory Test Status

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