Shoulds I be concerned with these signal issues? (Flight log attached)

[Mavic2Z2nd20]

So I have one of my logs here that shows signal loss, now I crashed my original craft after two years and DJI charged a repair fee and sent a new/different craft, I though awesome a brand new craft. However this unit seems to give me a lot of strange signal issues and also at one point I saw a message about switching to backup IMU??? Why? I flew high and as far as a test with the replacement craft.
What do you smart guys think? Your expertise is beyond my knowledge,

 

[slup]

Pretty hard to determine without knowing how you pointed the RC antennas & how much WiFi disturbance the area around you had. From the log it's clearly to areas (red circled in the sat pic.) that gave you connection issues, one nearly right above you & one further away over the fields where RTH was initiated. Suggest you try this out else where away from possible WiFi sources that can disturb your connection & point your antennas in a proper way with the flat side towards the AC.



Then when it comes to the CPU message ... it's found in the log event stream & it refers to your mobile device not your AC.

 

[Mavic2Z2nd20]

Okay, my antenna were up pointed straight up from the controller with the flat side up when it was directly over me and at the direction of the AC when distanced and when I saw the disconnect I adjusted my remote position to try different angles. I cannot confirm or deny wifi interference but I am in Albany OR and this area is miles and miles of flat farmland. Not sure where wifi interference would be coming from. I use an Ipad Mini 4 and for the past two years b4 the DJI replacement I NEVER had connection issues in that location and never saw the craft say anything about "switching to IMU 2 back up" messages. My concerns are in the replacement craft I have not flown it as often as I would like because I don't trust it over water etc, but here is where I went over water as a test. I attached the flight record, I wrote down in my log book that I saw this message: "switching to IMU 2 back up" and "Navigation System Redundancy Switch"

 

[slup]

Okay, my antenna were up pointed straight up from the controller with the flat side up when it was directly over me and at the direction of the AC when distanced and when I saw the disconnect I adjusted my remote position to try different angles. I cannot confirm or deny wifi interference but I am in Albany OR and this area is miles and miles of flat farmland. Not sure where wifi interference would be coming from. I use an Ipad Mini 4 and for the past two years b4 the DJI replacement I NEVER had connection issues in that location and never saw the craft say anything about "switching to IMU 2 back up" messages. My concerns are in the replacement craft I have not flown it as often as I would like because I don't trust it over water etc, but here is where I went over water as a test. I attached the flight record, I wrote down in my log book that I saw this message: "switching to IMU 2 back up" and "Navigation System Redundancy Switch"

You don't happen to have the mobile device DAT log still? The correct one ends with FLY074.DAT ... how to retrieve ---> Flight log retrieval and analysis guide (read up under point 3).

From the log event stream...

 

[Mavic2Z2nd20]

The files should be there trying to get them for you, hopefully I can follow instructions

 

[Mavic2Z2nd20]

Not sure I did this right..................

 

[slup]

Not sure I did this right..................

No, those aren't the correct ones ... the correct one ends with FLY074.DAT, find that & attach it to a new post here.

With iOS devices running DJI GO 4 you need to access the app files via computer, either using iTunes or with a file system browser such as iExplorer. The DAT logs are in Apps » DJI GO 4 » FlightRecords » MCDatFlightRecords

With Android devices the file system should mount when plugged into a Windows machine, or via various software options on a Mac. With DJI GO 4 the DAT logs are in DJI » dji.go.v4 » FlightRecord » MCDatFlightRecords

 

[Mavic2Z2nd20]

Okay, I am both thankful and sorry New to Dat files etc, anyhow the ONLY Dat file I find is 076, not showing any 074 also when I try to upload to the forum it says file too large

 

[slup]

Okay, I am both thankful and sorry New to Dat files etc, anyhow the ONLY Dat file I find is 076, not showing any 074 also when I try to upload to the forum it says file too large

Then unfortunately it's hard to dig deeper into this particular flight ...

@sar104 , the log event stream in post #4 ... can that be the M2 re-initializing the IMU Yaw after discovering a disagreement with the magYaw ?

 

[sar104]

Then unfortunately it's hard to dig deeper into this particular flight ...

@sar104 , the log event stream in post #4 ... can that be the M2 re-initializing the IMU Yaw after discovering a disagreement with the magYaw ?

No - those are IMU switches, and that's from the mobile app notification list, not an event stream. The M2 doesn't report yaw adjustment in the txt log or the DAT event stream - it just does it. I'll take a closer look at the txt to see if I can figure out what is happening.

 

[Mavic2Z2nd20]

Thanks for all your help sorry I am not helping myself, I will be flying in the same location tonight, perhaps I can get another DAT file that works. Truly Thank You @sar104 and @slup