An anchor alarm is a feature of a GPS or other electronic navigation device or a depthsounder that sounds an audible alarm when the anchor drags and the boat shifts position. To buoy the anchor is to attach a buoy to is so it and its rode can be found if they must be abandoned. The anchor watch is the crew awake and on deckas lookouts while the boat is anchored. See straight up an down and swinging room.
Ref: 120947/2006-09-27