Hi, all -
I'm trying to use an array of 28 AudioMoth Dev units with GPS+GLONASS modules to capture 12-hour continuous recordings using the GPS-Sync firmware.
What I am finding is that the recorders get their initial fix (on being switched on) very quickly, and the first recording in the program is typically successful in both getting a fix and recording until the maximum file length. After that, however, most attempts to record - both continuing on during that initial recording session, and on subsequent days - fail because a GPS fix is never acquired. All recorders do not fail all of the time, but most recorders fail most of the time.
I have tried giving the recorders 900 seconds to get a fix (recordingFixDuration: 900) but this hasn't helped. And I've noted that when the recorders are first switched on, they do acquire a fix quickly, typically within 30s. I have also tried breaking the recording period into shorter recordings (ranging from 15 minutes to 1.5 hours) with breaks in between to allow more time for acquiring a GPS fix; this hasn't resolved the issue either.
If there is something else I should try to correct the GPS issue I would love to hear ideas. Alternatively I am wondering if it is possible to program the units to carry on recording (and saving the recordings) even if a fix isn't acquired? That way I would at least have the recordings even though I won't be able to sync them.
Thanks for any help and ideas!
Cheers, Laura
