To estimate what GPS you should be getting:
- On this website, just enter your address or zip-code. For USA, the only Satellite System that should be selected is "GPS". www.trimble.com/gnssplanningonline .
- Here is another: http://satpredictor.navcomtech.com/
After 30 minutes of sats=0, hdop=100 ... it just started working. I finally got a GPS-3D-Lock but hdop was still too high to Arm in Loiter Mode. Depending on yard location ... Sats 5-7 & hdop 2.3-6.7. I just Armed in Stabilize, did some AutoTrims and hovers and flew around in back-yard "obstacle-course" :)
|Backyard hovering and flying.|
GPS still not good, but at least getting something now.
The good news is that the vibration problems appear to be fixed (and hopefully also WobbleOfDeath). I didn't fly very much and wasn't very high, but no WoD was observed. For reference, the X-Y (red & green) Acceptable Range is -3 ~ +3. The Z (blue) Acceptable Range is -15 ~ -5.
|All vibrations are well within acceptable levels. "Landing spikes" can be ignored.|
|Zoomed into a period (from above graph) for a closer look|