Issue with csv log of ads-b received frames

[saifuhameed]

When loading back csv log file, the location of aircrafts are totally wrong, most of them indicates they are more than 10000km away.

[srcejon]

Is your position set correctly in Preferences > My Position

[saifuhameed]

Is your position set correctly in Preferences > My Position

Yes. Live data in 'ADS-B data' window and map are showing correctly. Maximum distance I reached on live table/map is around 300Km. After many hours of logging (1146079 frames in a file), when the file is opened back some of the aircraft positions shows very far (>10000km) that is unrealistic.

[saifuhameed]

Is your position set correctly in Preferences > My Position

I have only very little knowledge about the sdrangel code and ads-b decoding of flight location, but I had a quick look into the logger files. What I understood is that frames are send to decoder from the file line by line but 'IGNORING' the time stamp of the frame logged to the file. There is a possibility that same airplane returning back after many hours (after landing and take-off) so the location calculation from received frame (even and odd frames) might be offset by many hours at a certain time and this may lead to wrong calculation for few frames? May be I'm totally wrong on this but highlighting a concern just came in my mind.

[srcejon]

Can you attach the .csv file to this issue? Thanks.

[saifuhameed]

I have shortened the data to around less than 35000 frames to show at least 3 wrong distances, zipped file 255kb. How can I send you this file personally?

[srcejon]

You can email me at [email protected] - but I don't think anything in there can really identify you.

[saifuhameed]

You can email me at [email protected] - but I don't think anything in there can really identify you.

Done, please check in your SPAM folder too.