What is a YEOMAN Plotter, and how does it work?
YEOMAN Plotters were introduced in 1985 as electronic replacements for traditional plotting instruments. As positioning devices became more sophisticated, it was possible to interface Loran and GPS receivers to the YEOMAN to provide real time positioning information as well as plotting. The YEOMAN plotter consists of a electronic grid under a map board and an intelligent mouse that understands where it is on the grid and is programmed to think like a navigator. This “Mouse for Maps”, when linked to a GPS receiver, enables the user to see where he is on a conventional paper chart. A GPS can only tell you where you are with respect to latitude and longitude; the YEOMAN will show you directly on the chart! When it comes to navigation, YEOMAN combines two proven technologies, GPS positioning and paper charts. A chart is secured on the plotting board, and the mouse reads its position on the mat and translates this into navigational data displayed on it’s LCD window. A set of indicator arrow
