Hi to everyone!
I have the following problem: I receive an error like “global position estimate required”.
The actual conditions:
1. A new fresh install of PX4 v1.16.0 on a NXP FMUv6X-RT
2. No parameter modification
3. The UAV flies in position mode
4. But, when I set “param set COM_ARM_WO_GPS 0” I have no ways to takeoff
5. I get the error: “Critical: Preflight Fail: Global position estimate required”
6. The GPS has a 3D DGPS Lock and HDOP is less than 0.6, and VDOP is less than 1.0.
7. You have here a “gps status”:
INFO [gps] Main GPS
INFO [gps] protocol: UBX
INFO [gps] status: OK, port: /dev/ttyS1, baudrate: 115200
INFO [gps] sat info: disabled
INFO [gps] rate reading: 818 B/s
INFO [gps] rate position: 4.99 Hz
INFO [gps] rate velocity: 4.99 Hz
INFO [gps] rate publication: 4.99 Hz
INFO [gps] rate RTCM injection: 0.00 Hz
sensor_gps
timestamp: 129283991 (0.052122 seconds ago)
timestamp_sample: 0
latitude_deg: 47.214188
longitude_deg: 27.524655
altitude_msl_m: 126.492000
altitude_ellipsoid_m: 158.812000
time_utc_usec: 1758619359600081
device_id: 11010061 (Type: 0xA8, SERIAL:1 (0x00))
s_variance_m_s: 0.14000
c_variance_rad: 0.58643
eph: 0.71800
epv: 1.02900
hdop: 0.57000
vdop: 0.98000
noise_per_ms: 93
jamming_indicator: 20
vel_m_s: 0.01000
vel_n_m_s: 0.00600
vel_e_m_s: -0.00700
vel_d_m_s: -0.00800
cog_rad: 0.88462
timestamp_time_relative: 0
heading: nan
heading_offset: 0.00000
heading_accuracy: 0.00000
rtcm_injection_rate: 0.00000
automatic_gain_control: 2106
fix_type: 4
jamming_state: 0
spoofing_state: 1
vel_ned_valid: True
satellites_used: 19
selected_rtcm_instance: 0
rtcm_crc_failed: False
rtcm_msg_used: 0
8. Th state LED is blue, and does not go in green even if I stay 20 min or more for GPS acquisition.
9. I have 17-20 satelites.
10. On the UAV I do not have any development boards or other components to generate EMI.
Please do you have any ideas?