I have had my APM 2.6 with the ubox now for a while, and are finaly starting to figure hows it works.
I have always had some issues with my GPS. At first i saw "bad gps helath" in mission planner but thought that it was calibration or that i was inside house issue.
I have always had some problems with RTL to. It sometimes work, and sometimes dont. I thoguht this had to do with max tilt values and it was windy.
Now latley i been trying loging so i have had the apm connected to my pc alot. Then i noticed that it took a long time before the blue led on my ublox startet to blink (with the error bad gps health on my mission planner). It could also start blinking and then stop blinking (and bad gps helath appear in mission planner).
Yesterday I removed the gps cable, messaured it for any fracture, but it was ok. When i inserted the wire and connected it with the usb cable it was dead. It has only the red light, the blue led wont blink. Also the APM blue led wont start, and the mission planner says no gps.
Also the log, it reports big hdop values. Im still learning about the logs, and i tried the MP "auto analysis" but it say bad length si i have to use another program. So i use "APM flight log analysis". And that program says "WARNING: A HDop of greater than 2 was detected during this mode." The max value is from around 5 and min value is around 2.09
Can it be, as i have started wondering, a bad ublox module?
I also messaured how much volt that the apm sent to the gps, and it was 4.8v. I have read alot latley, and i think i remember that the gps should have 3.3v, but i cant find that source.
Anyone have any tips... please help :)