• Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
  • Register
  • Login
ModalAI Forum
  • Categories
  • Recent
  • Tags
  • Popular
  • Users
  • Groups
    • Register
    • Login

    GPS not working for Starling 2 Max

    Support Request Format for Best Results
    gps starling max
    7
    21
    1.7k
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • B
      Bernhard @nuallaino
      last edited by 11 Nov 2024, 13:18

      @nuallaino that might be.
      But for us the GPS-sensor usually works, we only have problems when using 5G and/or video transmission.

      We will test if an external GPS-sensor fixes the situation.

      1 Reply Last reply Reply Quote 0
      • K
        Kory4Drone
        last edited by 21 Nov 2024, 13:39

        Hello,

        Has there been any resolution on this? I have a brand new Starling 2 Max, with 5G and have let the drone sit for over an hour and no GPS.

        B 1 Reply Last reply 22 Nov 2024, 13:45 Reply Quote 0
        • B
          Bernhard @Kory4Drone
          last edited by 22 Nov 2024, 13:45

          @Kory4Drone sadly there has been no update.
          @Zachary-Lowell-0 is there anything ModalAI can do to support?

          G 1 Reply Last reply 22 Nov 2024, 17:48 Reply Quote 0
          • G
            groupo @Bernhard
            last edited by 22 Nov 2024, 17:48

            @Bernhard I also have had GPS related issues with my sentinel drone that happens to have a 5G modem. I have two drones and one does work so we havent chased the other one down much. I will be interested to hear what steps the team will have for you

            1 Reply Last reply Reply Quote 0
            • Z
              Zachary Lowell 0 ModalAI Team
              last edited by 25 Nov 2024, 16:06

              How far away is the gps from the 5g hat? Also have you leveraged faraday tape around the fuselage of your drone so the signal for the gps doesnt get interfered. Odds are the issue isnt from the 5g hat but from the USB3.0 port if you are leveraging. Multiple studies show there is quite a lot of interference from usb3.0 that can disrupt GPS - the solution for this is taking faraday tape and wrapping it around the right spots to cut the signal:

              https://www.amazon.com/ZTTXL-Conductive-Grounding-Shielding-Interference/dp/B0CW9GL3Q9/ref=asc_df_B0CW9GL3Q9?tag=bingshoppinga-20&linkCode=df0&hvadid=80676856756448&hvnetw=o&hvqmt=e&hvbmt=be&hvdev=c&hvlocint=&hvlocphy=&hvtargid=pla-4584276320887549&psc=1&msclkid=17e3696f10bd1379a5500e2bb0278770

              G B 2 Replies Last reply 25 Nov 2024, 17:12 Reply Quote 0
              • G
                groupo @Zachary Lowell 0
                last edited by 25 Nov 2024, 17:12

                @Zachary-Lowell-0 Are you talking about the USB-C used for ADB? (Maybe there is not the same on the Starling as there is on the Sentinel). Wouldn't that only apply if something was plugged in (i.e.) a cable for ADB

                1 Reply Last reply Reply Quote 0
                • B
                  Bernhard @Zachary Lowell 0
                  last edited by 26 Nov 2024, 09:00

                  @Zachary-Lowell-0 I don't know if there is another way to mount the 5G board (see picture - we sticked the antennas to the arms in the meantime).
                  20240822_114213.jpg.

                  We assumed since all of the components are official ModalAI products, that they would work together.

                  J 1 Reply Last reply 4 Dec 2024, 02:13 Reply Quote 0
                  • J
                    James Strawson ModalAI Team @Bernhard
                    last edited by 4 Dec 2024, 02:13

                    @Bernhard When we released the 5G version of the Starling Max we also moved the GPS to the back of the drone and specified smaller LTE antennas which those landing gear were designed to fit. I'll reach out to you via PM regarding updating your Starling Max.

                    We just discovered a source of EMI which is the cable running to the optional Lepton sensor socket. For a number of reasons we've not offered Lepton as an option of Starling 2 Max yet so you can safely disconnect the 8-pin JST SH connector on the front left side of your camera breakout board next to the barometer cap. This will improve GPS performance. Please see picture below.

                    alt text

                    G B 2 Replies Last reply 4 Dec 2024, 14:48 Reply Quote 0
                    • G
                      groupo @James Strawson
                      last edited by 4 Dec 2024, 14:48

                      @James-Strawson is this sensor on the sentinel as well?

                      J 1 Reply Last reply 4 Dec 2024, 19:25 Reply Quote 0
                      • J
                        James Strawson ModalAI Team @groupo
                        last edited by 4 Dec 2024, 19:25

                        @groupo It is not on Sentinel.

                        1 Reply Last reply Reply Quote 0
                        • B
                          Bernhard @James Strawson
                          last edited by 5 Dec 2024, 08:55

                          @James-Strawson sadly that did not help.

                          B 1 Reply Last reply 28 Jan 2025, 13:32 Reply Quote 0
                          • B
                            Bernhard @Bernhard
                            last edited by 28 Jan 2025, 13:32

                            @James-Strawson, @Zachary-Lowell-0 can we expect an update in the near future?

                            R 1 Reply Last reply 28 Feb 2025, 16:45 Reply Quote 0
                            • R
                              ROBERT JUDD @Bernhard
                              last edited by 28 Feb 2025, 16:45

                              @Bernhard @James-Strawson @Zachary-Lowell-0 @Alex-Kushleyev @nuallaino

                              I have a brand new Starling 2 Max (received 3 days ago), and I'm having the same problem described by nuallaino and Bernhard (no GPS even when outside for a long time).

                              My system info and results of px4-listener are pasted below.

                              I did unplug the Lepton 8-pin JST SH connector as suggested by James Strawson, but that had no effect.

                              Everything else seems to work fine (haven't tried 5G comm yet), but I'm hesitant to fly without GPS functioning properly, so at this point I'm stuck.

                              Any suggestions would be most welcome.

                              Thanks for your help !


                              system-image: 1.8.02-M0054-14.1a-perf
                              kernel: #1 SMP PREEMPT Mon Nov 11 22:47:44 UTC 2024 4.19.125
                              hw platform: M0054
                              mach.var: 1.0.1
                              voxl-suite: 1.4.1
                              current IP: wlan0: 10.0.0.19


                              voxl2:~$ px4-listener sensor_gps

                              TOPIC: sensor_gps
                              sensor_gps
                              timestamp: 841732144 (0.020669 seconds ago)
                              timestamp_sample: 0
                              time_utc_usec: 0
                              device_id: 11272245 (Type: 0xAC, SERIAL:6 (0x00))
                              lat: 0
                              lon: 0
                              alt: -17000
                              alt_ellipsoid: 0
                              s_variance_m_s: 999.00006
                              c_variance_rad: 3.14159
                              eph: 4294967.50000
                              epv: 3796926.25000
                              hdop: 99.99000
                              vdop: 99.99000
                              noise_per_ms: 64
                              jamming_indicator: 15
                              vel_m_s: 0.00000
                              vel_n_m_s: 0.00000
                              vel_e_m_s: 0.00000
                              vel_d_m_s: 0.00000
                              cog_rad: 0.00000
                              timestamp_time_relative: 0
                              heading: nan
                              heading_offset: 0.00000
                              heading_accuracy: 0.00000
                              rtcm_injection_rate: 0.00000
                              automatic_gain_control: 0
                              fix_type: 0
                              jamming_state: 0
                              spoofing_state: 1
                              vel_ned_valid: False
                              satellites_used: 0
                              selected_rtcm_instance: 0

                              voxl2:~$ px4-listener sensor_mag

                              TOPIC: sensor_mag
                              sensor_mag
                              timestamp: 861420482 (0.006257 seconds ago)
                              timestamp_sample: 861420007 (475 us before timestamp)
                              device_id: 527625 (Type: 0x08, I2C:1 (0x0D))
                              x: -0.04417
                              y: -0.32142
                              z: 0.42167
                              temperature: nan
                              error_count: 0
                              voxl2:~$

                              1 Reply Last reply Reply Quote 0
                              • R ROBERT JUDD referenced this topic on 1 Mar 2025, 12:42
                              • R ROBERT JUDD referenced this topic on 12 Mar 2025, 20:58
                              • First post
                                Last post
                              Powered by NodeBB | Contributors