ST60 keeps resetting to kilometers

[ghostlymoron]

My ST60 log keeps resetting from Knots to kilometers/hr, how can I stop this?

 

[theoldsalt]

Presumably you are changing the units in calibration mode as per the manual. Are you saving the changes before exiting calibration?

"Hold down the speed and trip keys for 2 seconds to save your settings, exit
Intermediate calibration and resume normal operation"

 

[ghostlymoron]

Ah, that might explain it