Directory from removable medium disappearing at short intervals

[Sailabout]

I have a Navtex receiver (Weather Infobox  WIB2 from Moller) that is recognized by my Raspberry Pi 4 with OpenPlotter 3 as a removable medium  The received data can be seen on a web page.

The problem: the directory WIB2 disappear from media/pi several seconds after being opened, to be again presented on the file manager with the proposal to open the directory.

Between the opening time and the disappearance I barely have the time to read one Navtex message.  
 
Here are the error messages I get, messages that invade the screen (staying on top of the other application windows):
- No object for D-Bus interface
- Error mounting /dev/sdb1 at media/pi/WIB2 no medium found on dev/sdb1
- Drive was removed without ejecting

[kydistorted]

Hi Sailabout,
Have you tried checking the dmesg logs to see if there are any additional error messages when the device disconnects?

[Sailabout]

My problem was solved with a better power supply.