D value increases when drone is not moving

[bthuss]

in the DJI GO 4 app, i notice that the D value (distance to home point) will immediately start increasing slowly once my mavic and controller is powered on.

i am on the latest firmware (900).

i tried this inside my house and outside with both my iPhone7 and ipad mini4 (wifi only).

in all cases the same effect. GPS signal is strong and no other warnings. i have calibrated the drone compass and no effect.

i am powering in the controller, then the mavic and then starting DJI app. i let the app go from opti/atti to GPS and get a nice signal. even once this is complete there is "drift". i have also tried re-setting the home point using the menu option for mavic location as home (not the controller) and this does not seem to change it other than zeroing the distance D value for a second and then it starts drifting again.

any thoughts or help is appreciated. not sure if i need to calibrate the IMU or not but it says it is good in the app when i click on the "ready to fly" green banner

 

[KaiservonPoopChute]

I've noticed this myself. I first saw this while updating inside my house but just wrote it off. I've not paid enough attention while flying to see if it happens on mine outside as well.

 

[saulfeldman]

Did anyone have any insight into this problem, i am gaving thew same issues.

 

[Exphantomflyer]

i am on the latest firmware (900).

Latest firmware ? Thought it was v01.04.0000

 

[saulfeldman]

yeah, im on 1.04 also---

 

[bthuss]

so this value has always drifted for me. for 95% of my flights, the precision RTH returns the drone within roughly 10 feet +_ in x/y direction of the takeoff point and then i can see that the drone then uses the "images" it takes on takeoff to adjust to the exact takeoff point within a couple of inches or less.

but.. for 5% of the cases, it is off by a larger amount (maybe 20 feet) and it usually tries to land to the side and then aborts at about 5 feet.

in all cases when using precision RTH, i am letting it rise up and hover and then i usually let it sit there for about 10 seconds before flying off.

since the accuracy is close or perfect 100% of the time (even when off 20 feet), i usually just watch it and abort the landing if i think i need to. I haven't had any other issues with GPS location being way off or anything so i chalked it off my list LOL