Navigation Basics

Tuned Station When your Apollo GX is connected to and configured to communicate with an Apollo SL30 Nav/Comm, your Apollo GX will provide information about the VOR or Localizer tuned by the SL30. The Apollo SL30 with SW version 1.2, or later, sends the Tuned Station information once every second. Earlier versions of the SL30 only sends data when the frequency is changed. If the Apollo GX shows a different frequency than is shown on the SL30, press the F/F key on the SL30 to synchronize the units.

Reach the Tuned Station display, as shown below, by pressing NAV and turning the LARGE knob. The tuned station identifier and its frequency are shown, as well as the distance to it from your present position and your current ground speed. The Distance, Speed, and Time to waypoint information is sent by the Apollo GX for display on your Apollo SL30. The pilot should verify the station identification prior to navigation use.

Nav Ident: vUBG

Freq: 117.40

13.5nm 200kts

Tuning to a VOR

The selected VOR frequency on the SL30 is sent to your Apollo GX. The Apollo GX searches its database for a unique identifier for that frequency within 200 nm of your position. If a unique match is found, the selected VOR identifier, frequency, the distance from your present position, and your ground speed are shown on the Apollo GX display. The Apollo GX will send Distance, Speed, and Time to waypoint information to the SL30. If no frequency is found, or two or more are found, within 200 nm, no information will be displayed. All VORs are utilized, even those without TACAN or DME. Once a VOR is identified it will continue to be tracked even beyond 200 nm.

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