DFM09 decoding bug

[buttim]

DFM09 decoding seems shaky. At least 10% of the times either the lat or the long are completely wrong, resulting in a bizarre blu cross on the map.
At first I thought there was no rejection of partially decoded frames (wrong CRC or the like), but it might be a software bug as well.
Nonetheless I could find 3 DFMs in one day just ignoring the bogus points

Screenshot_20210623-105358.png

Screenshot_20210623-100200.png

[Thierry50]

hello, I have exactly the same concerns with the DFM9, which tells me gps positions, and totally wrong altitude, it's just to confirm the bug.
cdt

[IZ4PNN]

Thank you guys! I take note.