RTL activated but not sure why

In one of my auto missions I am getting a RTL activated, reproducible every time and i just don't know why.  I look at the logs but I'm just not verbose enough with them to pin point it.

I have flown the mission 4 times and all 4 times the "First Only" RTL in the log is activated not by me.

I can then switch to Stabilize I can fly much further past that boundary so I don't "think" its my controller loss signal.

The other suspicion I had is that it was the Droid Planner loosing its telemetry contact, so I looked at Ground Station Failure FS_GCS_ENABLE and Disabled it, tried again and sure enough the RTL was activated at the exact same spot in the mission as the other 4 times.

This is flown over a wooded park away from houses/power lines/cell.

I would really appreciate it if anyone can tell me from these logs what is activating the RTL, or at least point me in the right direction based on the logs.

2015-05-02%2016-03-52.log

Thanks, Ed,

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  • Here is the log from the APM Log Analizer program:
    APM Log File Analiser v2.0.0.2

    Log FileName: C:\Program Files (x86)\Mission Planner\logs\HEXAROTOR\1\20150502160352.log
    Ardu Version: V3.2.1 Build: (36b405fb)
    Ardu Type: ArduCopter
    Hardware: Unknown
    HW Free RAM: Not Available
    HW Version:
    Frame Type: X
    No. Motors: 0

    Data Found in APM Log File:-
    GPS, CTUN, PM, CURR, NTUN, MSG, CMD, ATT, MODE, EV, DU32, ERR, RCIN, RAD

    Data NOT Found in APM Log File:-
    IMU, ATUN, ATDE, MOT, OF, MAG, INAV, STRT, D16, DU16, D32, DFLT, PID, CAM, GPS2, IMU2, IMU3, MAG2, MAG3, AHR2, EKF1, EKF2, EKF3, EKF4, TERR, UBX1, UBX2, RCOU, BARO, POWR, SIM



    PARAMETER ISSUES:-
    MOT_SPIN_ARMED = 70
    Advice: If motors do not spin when armed calibrate ESC and then try increasing
    the parameter MOT_SPIN_ARMED up from 70 in small increments.
    http://ardupilot.com/forum/viewtopic.php?f=25&t=5345&sid=31...


    COMPASS_OFS_X = 110
    COMPASS_OFS_Y = 146
    COMPASS_OFS_Z = 195
    Warning: One or more compass offset is not set correctly (-150 to +150 recommended).


    INS_PRODUCT_ID = 0
    Warning: Unknown Ardupilot Hardware Detected.


    TUNE = 4
    Information: CH6 Tuning: body frame roll/pitch rate controller's P term
    Information: CH6 Tuning: Low Value set to: 100
    Information: CH6 Tuning: High Value set to: 122


    Log file created by a new ArduCopter firmware version!

    06/01/1980 - 000339: Mode Changed to Stabilize
    06/01/1980 - 000339: Mode Initialised at 0 0 Alt: 0 Spd:0
    06/01/1980 - 000340: Armed
    Limited Data Available - Mode Ignored

    06/01/1980 - 000341: Mode Changed to Stabilize
    06/01/1980 - 000341: Mode Initialised at 0 0 Alt: 0 Spd:0
    06/01/1980 - 000343: GPS ERROR: GPS Glitch.
    06/01/1980 - 000355: APM Information: Home is Set
    06/01/1980 - 000355: Simple Mode is Disabled
    06/01/1980 - 000355: APM Information: RC Pre-Arm checks have been completed.
    06/01/1980 - 000355: APM Information: All Pre-Arm checks have been completed.
    06/01/1980 - 000355: APM Information: USB is NOT Connected.
    06/01/1980 - 000355: Rx Information: CH7 Switch is High.
    06/01/1980 - 000355: Rx Information: CH7 function: Flip
    06/01/1980 - 000355: Rx Information: CH8 Switch is Centred.
    06/01/1980 - 000355: Rx Information: CH8 function: Disabled
    06/01/1980 - 000451: GPS ERROR: GPS lock lost for at least 5 seconds.
    06/01/1980 - 000522: GPS ERROR: GPS Glitch Cleared.
    06/01/1980 - 000523: GPS ERROR: GPS lock restored.
    02/05/2015 20:04:08 - 000530: Take Off
    02/05/2015 20:04:08 - 000530: Mode Time Changed to 02/05/2015 20:04:08
    02/05/2015 20:04:11 - 000631: Armed
    Alt(m ~ ft) Spd(m/s ~ mph) Dist(km ~ mi) Launch(m ~ ft) GPS-Sats GPS-Hdop Eff(mA/min)
    Max 0 ~ 0 0 ~ 0 0.00 ~ 0.00 0.13 ~ 0.44 7 2.62 N/A
    Avg 0 ~ 0 0 ~ 0 N/A ~ N/A N/A ~ N/A 7 2.62 ~~~
    Min 0 ~ 0 0 ~ 0 N/A ~ N/A 0.00 ~ 0.00 7 2.62 N/A
    Stabilize Flight Time (Session)= 2 seconds, 0:02
    Stabilize Flight Time (Total)= 2 seconds, 0:02
    WARNING: Less than 9 Satellites was detected during this mode.
    WARNING: A HDop of greater than 2 was detected during this mode.


    02/05/2015 20:04:11 - 000632: Mode Changed to Stabilize
    02/05/2015 20:04:11 - 000632: Mode Initialised at 28.1291516 -82.3391744 Alt: -0.18 Spd:0.12
    02/05/2015 20:05:38 - 000659: GCS Information: Ground Command Station is Attached.
    02/05/2015 20:05:49 - 001077: Armed
    Alt(m ~ ft) Spd(m/s ~ mph) Dist(km ~ mi) Launch(m ~ ft) GPS-Sats GPS-Hdop Eff(mA/min)
    Max 0 ~ 0 0 ~ 0 0.00 ~ 0.00 1.45 ~ 4.76 12 2.29 N/A
    Avg -1 ~ -4 0 ~ 0 N/A ~ N/A N/A ~ N/A 10 2.10 0.00
    Min -1 ~ -4 0 ~ 0 N/A ~ N/A 1.34 ~ 4.38 9 1.95 N/A
    Stabilize Flight Time (Session)= 98 seconds, 1:38
    Stabilize Flight Time (Total)= 100 seconds, 1:40


    02/05/2015 20:05:49 - 001078: Mode Changed to Stabilize
    02/05/2015 20:05:49 - 001078: Mode Initialised at 28.1291639 -82.3391725 Alt: -0.56 Spd:0.02
    02/05/2015 20:06:04 - 001260: Auto Mode is waiting for Throttle.

    02/05/2015 20:06:12 - 001578: Auto Command: 1 of 9
    02/05/2015 20:06:12 - 001578: Auto Command: Takeoff from ground / hand
    02/05/2015 20:06:12 - 001578: Auto Command: Climb to Alt of 40m with a Climb Rate of 0m/s
    Alt(m ~ ft) Spd(m/s ~ mph) Dist(km ~ mi) Launch(m ~ ft) GPS-Sats GPS-Hdop Eff(mA/min)
    Max 8 ~ 26 1 ~ 2 0.00 ~ 0.00 2.13 ~ 6.98 12 1.95 N/A
    Avg 0 ~ 0 0 ~ 0 N/A ~ N/A N/A ~ N/A 12 1.95 ~~~
    Min -4 ~ -14 0 ~ 0 N/A ~ N/A 0.85 ~ 2.79 12 1.95 N/A
    Stabilize Flight Time (Session)= 23 seconds, 0:23
    Stabilize Flight Time (Total)= 123 seconds, 2:03


    02/05/2015 20:06:12 - 001579: Mode Changed to Auto
    02/05/2015 20:06:12 - 001579: Mode Initialised at 28.1291618 -82.3391563 Alt: 7.96 Spd:0.72
    02/05/2015 20:06:27 - 002270: Auto Command: Hit WP1 Radius: 28.1291670 -82.3391554 at an Altitude of 33.82m - 9256368.299m to center.

    02/05/2015 20:06:27 - 002270: Auto Command: 2 of 9
    02/05/2015 20:06:27 - 002270: Auto Command: Navigate to New Way Point
    02/05/2015 20:06:27 - 002270: Auto Command: Navigate From WP1: 00.0000000 00.0000000 with current Altitude of 0m
    02/05/2015 20:06:27 - 002270: Auto Command: to WP2: 28.1286500 -82.3394400 with current Altitude of 40m
    02/05/2015 20:06:27 - 002270: Auto Command: WP - WP Distance: 9256392.51m
    02/05/2015 20:06:27 - 002270: Auto Command: Warning: Navigating to a new GPS position from a low altitude can be dangerous!
    02/05/2015 20:06:27 - 002270: Auto Command: Warning: Insert a Take Off command to a good altitude at the start of the mission.

    02/05/2015 20:06:43 - 003034: Auto Command: 3 of 9
    02/05/2015 20:06:43 - 003034: Auto Command: 82 - NEW COMMAND, UPDATE CODE TO HANDLE
    Alt(m ~ ft) Spd(m/s ~ mph) Dist(km ~ mi) Launch(m ~ ft) GPS-Sats GPS-Hdop Eff(mA/min)
    Max 48 ~ 157 9 ~ 20 0.50 ~ 0.31 464.77 ~ 1524.84 15 2.01 N/A
    Avg 37 ~ 121 5 ~ 11 N/A ~ N/A N/A ~ N/A 13 1.53 0.00
    Min 8 ~ 26 0 ~ 0 N/A ~ N/A 1.66 ~ 5.45 10 1.32 N/A
    Auto Flight Time (Session)= 92 seconds, 1:32
    Auto Flight Time (Total)= 215 seconds, 3:35


    02/05/2015 20:07:45 - 006020: Mode Changed to RTL
    02/05/2015 20:07:45 - 006020: Mode Initialised at 28.1255163 -82.3368365 Alt: 31.47 Spd:7.46
    02/05/2015 20:07:45 - 006038: Rx Information: CH7 Switch is Low.
    02/05/2015 20:07:45 - 006038: Rx Information: CH7 function: Flip
    02/05/2015 20:07:46 - 006088: FLIGHT MODE ERROR: New Error Code (strECode Unknown to Macro).
    Alt(m ~ ft) Spd(m/s ~ mph) Dist(km ~ mi) Launch(m ~ ft) GPS-Sats GPS-Hdop Eff(mA/min)
    Max 33 ~ 108 7 ~ 15 0.01 ~ 0.01 473.85 ~ 1554.62 15 1.32 N/A
    Avg 32 ~ 104 6 ~ 13 N/A ~ N/A N/A ~ N/A 15 1.32 ~~~
    Min 32 ~ 104 6 ~ 13 N/A ~ N/A 466.20 ~ 1529.52 15 1.32 N/A
    RTL Flight Time (Session)= 1 seconds, 0:01
    RTL Flight Time (Total)= 1 seconds, 0:01


    02/05/2015 20:07:46 - 006095: Mode Changed to Stabilize
    02/05/2015 20:07:46 - 006095: Mode Initialised at 28.1254549 -82.3367717 Alt: 32.31 Spd:6.15
    02/05/2015 20:07:47 - 006127: Rx Information: CH7 Switch is High.
    02/05/2015 20:07:47 - 006127: Rx Information: CH7 function: Flip
    Alt(m ~ ft) Spd(m/s ~ mph) Dist(km ~ mi) Launch(m ~ ft) GPS-Sats GPS-Hdop Eff(mA/min)
    Max 108 ~ 354 15 ~ 33 0.22 ~ 0.14 585.84 ~ 1922.06 16 1.4 N/A
    Avg 71 ~ 232 4 ~ 8 N/A ~ N/A N/A ~ N/A 15 1.32 ~~~
    Min 32 ~ 104 2 ~ 4 N/A ~ N/A 475.04 ~ 1558.51 14 1.3 N/A
    Stabilize Flight Time (Session)= 53 seconds, 0:53
    Stabilize Flight Time (Total)= 268 seconds, 4:28


    02/05/2015 20:08:39 - 008121: Mode Changed to PosHold
    02/05/2015 20:08:39 - 008121: Mode Initialised at 28.1251349 -82.3366114 Alt: 107.85 Spd:4.06
    02/05/2015 20:08:48 - 008538: GCS Heartbeat Error: GCS Heartbeat signal is low @ 80%
    02/05/2015 20:08:48 - 008538: GCS Heartbeat Error: Current Distance from Launch is 605.25m ~ 1985.73ft
    02/05/2015 20:08:48 - 008538: GCS Heartbeat Error: Current Direction of UAV is 132 degrees (0 = north).
    02/05/2015 20:08:58 - 009013: GCS Heartbeat Error: GCS Heartbeat signal is low now OK @ 100%
    02/05/2015 20:09:08 - 009492: GCS Heartbeat Error: GCS Heartbeat signal is low @ 80%
    02/05/2015 20:09:08 - 009492: GCS Heartbeat Error: Current Distance from Launch is 840.81m ~ 2758.57ft
    02/05/2015 20:09:08 - 009492: GCS Heartbeat Error: Current Direction of UAV is 44 degrees (0 = north).
    02/05/2015 20:09:18 - 009980: GCS Heartbeat Error: GCS Heartbeat signal is low @ 70%
    02/05/2015 20:09:18 - 009980: GCS Heartbeat Error: Current Distance from Launch is 744.73m ~ 2443.34ft
    02/05/2015 20:09:18 - 009980: GCS Heartbeat Error: Current Direction of UAV is 259 degrees (0 = north).
    02/05/2015 20:09:28 - 010466: GCS Heartbeat Error: GCS Heartbeat signal is low @ 80%
    02/05/2015 20:09:28 - 010466: GCS Heartbeat Error: Current Distance from Launch is 640.09m ~ 2100.04ft
    02/05/2015 20:09:28 - 010466: GCS Heartbeat Error: Current Direction of UAV is 285 degrees (0 = north).
    02/05/2015 20:09:38 - 010941: GCS Heartbeat Error: GCS Heartbeat signal is low now OK @ 100%
    02/05/2015 20:09:48 - 011408: GCS Heartbeat Error: GCS Heartbeat signal is low @ 70%
    02/05/2015 20:09:48 - 011408: GCS Heartbeat Error: Current Distance from Launch is 853.68m ~ 2800.78ft
    02/05/2015 20:09:48 - 011408: GCS Heartbeat Error: Current Direction of UAV is 146 degrees (0 = north).
    02/05/2015 20:09:58 - 011889: GCS Heartbeat Error: GCS Heartbeat signal is low now OK @ 100%
    02/05/2015 20:10:01 - 012008: GPS ERROR: GPS Glitch.
    02/05/2015 20:10:01 - 012188: GPS ERROR: GPS Glitch Cleared.
    Alt(m ~ ft) Spd(m/s ~ mph) Dist(km ~ mi) Launch(m ~ ft) GPS-Sats GPS-Hdop Eff(mA/min)
    Max 114 ~ 374 23 ~ 51 1.79 ~ 1.11 893.84 ~ 2932.55 18 1.42 N/A
    Avg 106 ~ 347 17 ~ 38 N/A ~ N/A N/A ~ N/A 15 1.29 0.00
    Min 74 ~ 242 2 ~ 4 N/A ~ N/A 512.48 ~ 1681.35 13 1.07 N/A
    PosHold Flight Time (Session)= 99 seconds, 1:39
    PosHold Flight Time (Total)= 367 seconds, 6:07


    02/05/2015 20:10:19 - 012890: Mode Changed to RTL
    02/05/2015 20:10:19 - 012890: Mode Initialised at 28.1223614 -82.3366774 Alt: 74.25 Spd:19.75
    02/05/2015 20:10:19 - 012897: Rx Information: CH7 Switch is Low.
    02/05/2015 20:10:19 - 012897: Rx Information: CH7 function: Flip
    02/05/2015 20:10:24 - 013122: FLIGHT MODE ERROR: New Error Code (strECode Unknown to Macro).
    Alt(m ~ ft) Spd(m/s ~ mph) Dist(km ~ mi) Launch(m ~ ft) GPS-Sats GPS-Hdop Eff(mA/min)
    Max 75 ~ 246 20 ~ 44 0.04 ~ 0.02 804.54 ~ 2639.56 19 1.07 N/A
    Avg 72 ~ 236 8 ~ 17 N/A ~ N/A N/A ~ N/A 17 1.06 ~~~
    Min 67 ~ 219 1 ~ 2 N/A ~ N/A 794.70 ~ 2607.27 17 1.04 N/A
    RTL Flight Time (Session)= 5 seconds, 0:05
    RTL Flight Time (Total)= 6 seconds, 0:06


    02/05/2015 20:10:24 - 013128: Mode Changed to PosHold
    02/05/2015 20:10:24 - 013128: Mode Initialised at 28.1221707 -82.3370189 Alt: 74.74 Spd:1.09
    02/05/2015 20:10:24 - 013138: Rx Information: CH7 Switch is High.
    02/05/2015 20:10:24 - 013138: Rx Information: CH7 function: Flip
    Alt(m ~ ft) Spd(m/s ~ mph) Dist(km ~ mi) Launch(m ~ ft) GPS-Sats GPS-Hdop Eff(mA/min)
    Max 75 ~ 246 7 ~ 15 0.01 ~ 0.00 806.25 ~ 2645.18 18 1.07 N/A
    Avg 74 ~ 242 3 ~ 6 N/A ~ N/A N/A ~ N/A 18 1.07 ~~~
    Min 74 ~ 242 1 ~ 2 N/A ~ N/A 804.74 ~ 2640.23 18 1.07 N/A
    PosHold Flight Time (Session)= 1 seconds, 0:01
    PosHold Flight Time (Total)= 368 seconds, 6:08


    02/05/2015 20:10:26 - 013213: Mode Changed to RTL
    02/05/2015 20:10:26 - 013213: Mode Initialised at 28.1221436 -82.3370659 Alt: 74.66 Spd:7.1
    02/05/2015 20:10:26 - 013237: Rx Information: CH7 Switch is Low.
    02/05/2015 20:10:26 - 013237: Rx Information: CH7 function: Flip
    02/05/2015 20:10:28 - 013333: GCS Heartbeat Error: GCS Heartbeat signal is low @ 70%
    02/05/2015 20:10:28 - 013333: GCS Heartbeat Error: Current Distance from Launch is 799.37m ~ 2622.61ft
    02/05/2015 20:10:28 - 013333: GCS Heartbeat Error: Current Direction of UAV is 287 degrees (0 = north).
    02/05/2015 20:10:35 - 013633: FLIGHT MODE ERROR: New Error Code (strECode Unknown to Macro).
    Alt(m ~ ft) Spd(m/s ~ mph) Dist(km ~ mi) Launch(m ~ ft) GPS-Sats GPS-Hdop Eff(mA/min)
    Max 75 ~ 246 10 ~ 22 0.06 ~ 0.03 806.18 ~ 2644.94 19 1.07 N/A
    Avg 72 ~ 236 6 ~ 13 N/A ~ N/A N/A ~ N/A 18 1.05 ~~~
    Min 71 ~ 232 4 ~ 8 N/A ~ N/A 768.60 ~ 2521.66 18 1.04 N/A
    RTL Flight Time (Session)= 9 seconds, 0:09
    RTL Flight Time (Total)= 15 seconds, 0:15


    02/05/2015 20:10:35 - 013640: Mode Changed to PosHold
    02/05/2015 20:10:35 - 013640: Mode Initialised at 28.1224054 -82.3374685 Alt: 70.86 Spd:4.52
    02/05/2015 20:10:35 - 013671: Rx Information: CH7 Switch is High.
    02/05/2015 20:10:35 - 013671: Rx Information: CH7 function: Flip
    02/05/2015 20:10:38 - 013813: GCS Heartbeat Error: GCS Heartbeat signal is low now OK @ 100%
    Alt(m ~ ft) Spd(m/s ~ mph) Dist(km ~ mi) Launch(m ~ ft) GPS-Sats GPS-Hdop Eff(mA/min)
    Max 72 ~ 236 4 ~ 8 0.01 ~ 0.00 767.72 ~ 2518.77 19 1.04 N/A
    Avg 70 ~ 229 1 ~ 2 N/A ~ N/A N/A ~ N/A 19 1.04 ~~~
    Min 69 ~ 226 0 ~ 0 N/A ~ N/A 762.06 ~ 2500.18 19 1.04 N/A
    PosHold Flight Time (Session)= 4 seconds, 0:04
    PosHold Flight Time (Total)= 372 seconds, 6:12


    02/05/2015 20:10:39 - 013856: Mode Changed to RTL
    02/05/2015 20:10:39 - 013856: Mode Initialised at 28.1224627 -82.3374838 Alt: 72.32 Spd:0.16
    02/05/2015 20:10:48 - 014295: GCS Heartbeat Error: GCS Heartbeat signal is low @ 60%
    02/05/2015 20:10:48 - 014295: GCS Heartbeat Error: Current Distance from Launch is 741.70m ~ 2433.41ft
    02/05/2015 20:10:48 - 014295: GCS Heartbeat Error: Current Direction of UAV is 356 degrees (0 = north).
    02/05/2015 20:10:57 - 014712: FLIGHT MODE ERROR: New Error Code (strECode Unknown to Macro).
    02/05/2015 20:11:08 - 015241: GCS Heartbeat Error: GCS Heartbeat signal is low @ 70%
    02/05/2015 20:11:08 - 015241: GCS Heartbeat Error: Current Distance from Launch is 658.46m ~ 2160.32ft
    02/05/2015 20:11:08 - 015241: GCS Heartbeat Error: Current Direction of UAV is 347 degrees (0 = north).
    Alt(m ~ ft) Spd(m/s ~ mph) Dist(km ~ mi) Launch(m ~ ft) GPS-Sats GPS-Hdop Eff(mA/min)
    Max 80 ~ 262 6 ~ 13 0.11 ~ 0.07 762.02 ~ 2500.08 19 1.06 N/A
    Avg 74 ~ 242 3 ~ 6 N/A ~ N/A N/A ~ N/A 18 1.04 ~~~
    Min 67 ~ 219 0 ~ 0 N/A ~ N/A 657.47 ~ 2157.04 18 1.04 N/A
    RTL Flight Time (Session)= 29 seconds, 0:29
    RTL Flight Time (Total)= 44 seconds, 0:44


    02/05/2015 20:11:09 - 015251: Mode Changed to PosHold
    02/05/2015 20:11:09 - 015251: Mode Initialised at 28.1233835 -82.3377022 Alt: 74.09 Spd:5
    02/05/2015 20:11:18 - 015710: GCS Heartbeat Error: GCS Heartbeat signal is low now OK @ 100%
    02/05/2015 20:11:38 - 016674: GCS Heartbeat Error: GCS Heartbeat signal is low @ 80%
    02/05/2015 20:11:38 - 016674: GCS Heartbeat Error: Current Distance from Launch is 442.51m ~ 1451.80ft
    02/05/2015 20:11:38 - 016674: GCS Heartbeat Error: Current Direction of UAV is 279 degrees (0 = north).
    02/05/2015 20:11:49 - 017160: GCS Heartbeat Error: GCS Heartbeat signal is low now OK @ 100%
    02/05/2015 20:12:19 - 018608: APM Speed Error: The total number of sustained loops 1003
    02/05/2015 20:12:19 - 018608: APM Speed Error: A one off here could be ignored but if repeated in this log,
    02/05/2015 20:12:19 - 018608: APM Speed Error: then try disabling some logs, for example INAV, MOTORS and IMU.
    Alt(m ~ ft) Spd(m/s ~ mph) Dist(km ~ mi) Launch(m ~ ft) GPS-Sats GPS-Hdop Eff(mA/min)
    Max 77 ~ 252 19 ~ 42 0.82 ~ 0.51 655.45 ~ 2150.43 19 1.28 N/A
    Avg 73 ~ 239 11 ~ 24 N/A ~ N/A N/A ~ N/A 16 1.13 0.00
    Min 69 ~ 226 0 ~ 0 N/A ~ N/A 44.03 ~ 144.46 15 1.04 N/A
    PosHold Flight Time (Session)= 71 seconds, 1:11
    PosHold Flight Time (Total)= 443 seconds, 7:23


    02/05/2015 20:12:20 - 018698: Mode Changed to Stabilize
    02/05/2015 20:12:20 - 018698: Mode Initialised at 28.1287567 -82.339206 Alt: 73.19 Spd:1.05
    02/05/2015 20:12:50 - 019817: LAND_COMPLETE_MAYBE
    02/05/2015 20:12:50 - 019851: Landed
    Alt(m ~ ft) Spd(m/s ~ mph) Dist(km ~ mi) Launch(m ~ ft) GPS-Sats GPS-Hdop Eff(mA/min)
    Max 73 ~ 239 7 ~ 15 0.06 ~ 0.04 45.00 ~ 147.65 19 1.31 N/A
    Avg 28 ~ 91 1 ~ 2 N/A ~ N/A N/A ~ N/A 17 1.13 ~~~
    Min 0 ~ 0 0 ~ 0 N/A ~ N/A 0.40 ~ 1.32 16 1.03 N/A
    Stabilize Flight Time (Session)= 30 seconds, 0:30
    Stabilize Flight Time (Total)= 473 seconds, 7:53

    21/04/2015 15:18:46 - 019932: LOG Information: Vehicle is flying without TAKE_OFF Event recorded in the APM Log,
    21/04/2015 15:18:46 - 019932: ----- Testing: Log_In_Flight = False, Alt = 40.06, Throttle = 59.7%
    21/04/2015 15:18:46 - 019932: LOG Information: The Log Analiser program will simulate a TAKE_OFF Event from this point,
    21/04/2015 15:18:46 - 019932: LOG Information: The effect on the results can not be determined but should be minimal.
    21/04/2015 15:18:46 - 019932: Take Off
    21/04/2015 15:18:46 - 019955: Auto Mode is waiting for Throttle.

    21/04/2015 15:18:47 - 019999: Auto Command: 3 of 9
    21/04/2015 15:18:47 - 019999: Auto Command: 82 - NEW COMMAND, UPDATE CODE TO HANDLE

    Overall Flight Summary:
    Alt(m ~ ft) Spd(m/s ~ mph) Dist(km ~ mi) Launch(m ~ ft) GPS-Sats GPS-Hdop
    Max 114 ~ 374 23 ~ 51 3.64 ~ 2.26 893.84 ~ 2932.55 19 3.13
    Avg 0 ~ 0 0 ~ 0 N/A ~ N/A N/A ~ N/A 15 1.34
    Min 0 ~ 0 0 ~ 0 N/A ~ N/A N/A ~ N/A 0 0
    WARNING: Less than 9 Satellites was detected during this mode.

    Power Summary:
    Battery(V) Vcc(V) Current(A) Used Cap(mAh) Eff(mA/mim)
    Max 0.00 5.12 0.00 0 N/A
    Avg 0.00 0.00 0.00 N/A 0.00
    Min 0.00 4.64 999.99 N/A N/A
    Overall Flight Time = 524 seconds, 8:44

    WARNING: VCC is unstable with fluctuations of 0.4849997v reported.
    VCC needs to be within 0.15v according to this UAV profile


    WARNING: If an APM Current Sensing Power Module is fitted then it is failing to measure current consumption correctly!
    WARNING: You could try calibrating the module: https://www.youtube.com/watch?v=tEA0Or-1n18
    *** Enable IMU logging to view vibration results.


    WARNING: Possible Brown Out Occurred because log ends in a highier that expected altitude of 44.59m
    TOPIC: http://diydrones.com/group/arducopterusergroup/forum/topics/quadcop...
    • Thanks, well I never found it :(

  • Look's here http://copter.ardupilot.com/wiki/flying-arducopter/flight-modes/  , right each mode you have a pwm value range, and upside the modes, you have the current pwm, if you change mode, you can observe that current value changes but oscilate a little, if you have that current value near other mode, when oscilates perhaps give you an error as you have; sorry my bad english check if you don't have an issue here, one time ocurrs to me, perhaps something happens on the same place that repeat the issue there.

    • Cala, Thank you very much, you figured it out :-D

      My Current PWM for F Mode 1 (stab) was 1225, which is very close to F Mode 2 PWM of 1231, and my FMode 2 is set to RTL.

      I adjusted my Tx to 918 current PWM for FM1, I doubt I will ever see this issue again.  

      Thanks again for finding this issue, its something I should have noticed but was thinking it was a signal loss or GPS error and I was looking in the wrong place.

      I will confirm this when the weather gets better, but Im 99% sure you figured it out.


      Thanks again, Wahoo!

      Ed,

    • Good luck and enjoy flying :D

  • You have a F mode err, check your PWM values in M planner Flight modes page if there isn't very near, You switch voluntary to pos hold? check specially stab and pos hold and RTL values,

    3701995880?profile=original

    • As soon after it started to climb (RTL I think) I manually entered pos-hold yes.
      When you say check your PWM in MP can you tell me what Im looking for?
      I do find it odd, still wonder why the RTL was always in same spot all 4 times?

      Thanks again for looking at this for me as its ongoing.

  • If it was not that you say you can fly further in stabilize I would have said check that you don't have FENCE setup inside your

    mission area. I was following my drone walking down the beach not long ago when it suddenly departed back over my shoulder and headed for home  with me in shock running after it. I had of coarse set my fence to 60m and forgotten about it.Upon hitting the wall RTL was triggered quite correctly. My how we laughed!!!

    • Only alt fence and I was way below, thanks tho

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