85Section 6GPS ReceiverReferenceThe data fields may be configured to display differentdata. The various features of the unit are menu driven.Each of the main pages has an options menu, allowingyou to custom tailor the corresponding page to yourpreferences and/or select special features that specificallyrelate to that page.To display the HSI Page Options, press MENUwith the HSI Page displayed.The following options are available:Set OBS and Hold— allows you to manually definethe course to your destination waypoint. Once selected, theNavTalk Pilot will use the OBS course setting for steeringguidance with the CDI and desired course pointer.A practical application of this feature is for flyingmultiple practice approaches, making the unit respondlike a panel mounted HSI. Another is for deviatingaround weather when flying a flight planned route.When using the NavTalk Pilot’s route features, ‘SetOBS and Hold’ will prevent the unit from automaticallysequencing to the next route waypoint. To maintain theOBS course and retain automatic sequencing, you mustalso select the ‘Release Hold’ option, described later.To manually set a course to the destinationwaypoint:1. Highlight ‘Set OBS and Hold’ and press ENTER. AnOBS data field will appear on the HSI display.2. Select the desired OBS course using the left/rightarrow keys and press ENTER. The D-bar on the CDIand the desired course pointer will now providesteering guidance to the selected course.To cancel the OBS course and reset a directcourse to the waypoint, press GOTO andENTER or reactivate the route.Use the ARROWkeypad to select thedesired OBS heading.Note heading at thebottom center of theHSI display.The ‘Set OBS andHold’ option allowsyou to specify aninbound heading to adestination waypoint.
