I bought a GPS III to replace a GPS II with which I occasionally lost data.
The GPS III is supposed to be more precise.
The GPS is installed on a Mercury powerbox.
Attached are two examples of Data logs recorded with Futaba telemetry on the same model and at the same position.
With the GPS III it is worse and the loss of data is almost permanent.
Is it due to a product defect?
Is the mercury gyro affected by the loss of speed data?