I use a Globalstar Spot trace on my UAV because I do long time flight over the forest and i want to be able to rescue the ariplane in case of problem.
The device sends GPS information each 60 minutes, when this happens the reach M+ loose signal and get back after some time.
Loosing geotag on some pictures is not a problem but it happens that when some pictures have no GPS fix, the GPSpost loose its time marks and does not count that like zero or weak, the result is a different number of time marks and I am not able to know what pictures corresponds to the positions I get from the post processing.
Is there a workaround to keep no fix positions in the *_events.pos file?
In the image a test flight with Spot Trace setup at 5 minutes interval