JRC JAN-701B Instruction Manual page 206

Note:
• The voyage distance can be reset to 0.0nm. (See 7.9 "Clear Voyage Distance".)
• The voyage distance is available only if the interface with the ship speed sensor is in a log pulse
format.
• Some of the items of Logbook may not be available depending on the hardware and system
configuration used.
3 Basic Operation of ECDIS 3-144