Force GPS heading: this option allows you to tell the system the heading you will be traveling. For example you exit a subway and always head west. The GPS will not know the direction of travel until you move for a time. To change your initial heading press ENTER with H on the BT and READ with H on the QT. You are then presented with a menu with the following options: North, Northeast, East, Southeast, South, Southwest, West, Northwest, by degrees and unknown heading. Selecting any Compass heading sets your heading temporarily to the desired direction. If you wish to set the heading to a specific degree i.e. 121, select the "by degrees" option. Selecting unknown forces your heading to be in an unknown state. Once you move for 15 seconds or so, your temporary heading will be replaced by the real GPS heading. Sendero Group - "The GPS company:" Featuring Sendero GPS on the BrailleNote as well as Sense Nav and the new Mobile Geo for Windows Mobile devices. Also distributing Trekker, Victor Stream, KNFB Mobile Reader, Talks, Mobile Speak, Tiger embossers, Miniguide and ID Mate