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Hi, we use RUT955 devices together with GPS Gate Server (AVL- transmission) for vehicle tracking. We equipped 9 vehicles with RUT955 devices. With every device we encounter GPS location problems. Sometimes for short periods of time (30 sec) up to several hours satellite count is 0 and the AVL data stream is tagged as invalid. If I manually (google map) check the submitted GPS locations, they’re all correct as far as I can tell. We placed the GPS antennas at different places (inside car, roof, top of side mirror) but this seems to have very little impact. If the RUT955 has a valid position, satellite count usually is between 10 and 12. We use different FW from RUT9XX_R_00.06.02 up to R_00.06.03.2 but I can’t see any difference regarding GPS accuracy. We only use original GPS antennas supplied with the device. I now have two questions:
- Where is the best place to mount the GPS antenna and what should I keep in mind when installing it?
- Is there a way to tag the AVL data stream as valid regardless of signal quality, as the positions sent by the device are all perfectly fine?
Thanks a lot for your help