Can't get HDOP, UDOP data

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Hello! I can’t get HDOP, VDOP data.
I’ve changed GPS and FC. But it doesn’t worked.
How can i solve the problem?
Thanks in advance.

FC= Pixhawk CUAV V5, GPS= CUAV NEO 3 U-BLOX M9N

What flight stack? PX4 or ArduPilot? And which version?

Thank you for your help!
Flight stack is PX4 and stable(v1.14.0) version.
Feel free to ask me again!

Ok, it looks like this GPS is connected via UAVCAN/DroneCAN, is that right? I’m not sure if these fields are provided via UAVCAN/DroneCAN.

I solved the problem by applying default, not multicopter of Px4 software.
Thank you!

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