patiam
Core User of DJI
Flight distance : 1118740 ft
United States
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Today we were unable to fly using the D-RTK 2 at our regular flight testing zone because the base station coordinate setup would not accept our known coordinates. It repeatedly rejected them as being > 50m from the base's own solution.
This is for a benchmark in which we have extreme confidence, that has been shot independently and repeatedly using a Trimble 5700 and NetR5 RTK with rapid-static processing by OPUS, with a Total Station, and has been used for calibration and as a GCP or Checkpoint in countless eBee RTK flights, dozens of non-RTK P4 flights, and at least half a dozen P4P RTK flights. We're damn sure we know the XYZ of this spot to within a couple cm (or better). And the D-RTK 2 has accepted those very coordinates on many occasions previous to today. We've had it briefly reject them in the past, but have always been able to get it to take them after another try or two.
We tried multiple times to enter the cordinates, and cycled the power on the base as well as the A/C. When we still couldn't get past the > 50m rejection fail, we switched to using NTRIP from our own nearby Trimble NetR9 base station so we could get the needed flights in and to let the D-RTK 2 run for a while on its own in hopes it would realize where it really was and eventually accept our coordinates.
After two short NTRIP flights (maybe 20 minutes total) we tried the D-RTK 2 again. Same issue. Nothing we could do would make the app accept the true coordinates. I believe we recorded the base's own solution either by writing it down or taking a pic of the screen, but don't have those with me to compare yet.
We ended up doing another NTRIP flight to complete what testing we could. But part of what we wanted to test was performance using the D-RTK 2.
I do know the D-RTK 2 and A/C were last used together about 15-20 km from our test zone, so maybe it was remembering those coordinates, or maybe something else was wrong. But wahtever the case, the coordinate rejection logic is a bad thing, for a number of reasons.
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