"Andy, any chance you are using a pixhawk lite?"

"Has anyone identified or isolated the problem when using a "Pixhawk Lite" you receive non-stop "Error Compass Varriance" reports from Mission Planner?

Is anyone running a "Pixhawk Lite" without these problems?"

"Randy,

On this "Error Compass Variance" issue I and a few others seem to be having with Pixhawk Lites, what specifically are the 2 things that are being compared and found to have a variance, and what is the threshold? Might help if we can graph…"

"I'm using a pixhawk lite as well... With a 3DR GPS / Compass 

Is it possible to do the MAG graphing in real time? "

"Still getting "Error Compass Variance" and "BAD AHRS"

Randy can you take a look at the attached file and see if it gives you any clues?

Thanks,
Scott...
201508172035585.bin"

"log file

Randy, hope this helps. See embedded link to my log file... Also attempted to attach...

Scott...2015-08-17 20-35-58 5.bin"

"Using 3.3rc8 I'm getting and error in Mission Planner - Error Compass Variance

Seems like others have seen this issue, but I've not found a solution yet in this thread. Is there a fix for this problem, or is this recognized as a problem yet?…"

"Thank you. Looks like we posted at the same time :)"

"Nevermind I found it :)

     There’s also a new AUTOTUNE_AXES parameter which can be used to enable just a single axis:
             7 = do all axis
             1 = roll only
             2 = pitch only
             4 = yaw only"

"Flying 3.3 rc8 on a 250 class racer. Just got it built. I use a 1300mah 3 cell battery. 

I am trying to do an autotune. Auto tune starts and gets past the autotune of the roll and into the pitch autotune. I only get about 5 minutes of flight time,…"