Hi all my GPS display on the data log show that i have 9 sat and my HDOP is around 0.84 to 0.92 . Is this value bad to fly waypoint? As with this value my gps did not follow the correct path and most of the time flying very aggressively . Anyone know what is the possible problem causing the HDOP to drop below 1?
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HDOP drops below 1 if you get a truly excellent fix -- like with 9 satellites! -- at least on Venus and uBlox modules I've used.
So whatever is causing the flight problems isn't the quality of the GPS fix.
low HDOP is good, lower means better.
Your GPS accuracy is excellent! below 2 is the target to fly.
May I ask which module you are using?