BendixKing KSN 770 - Pilots Guide - Manual (Page 131)

KSN 765/770 Integrated Communication Navigation Display
D200802000009
REV 2 Jun 2014 6-33
Navigation Map View
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When WX--500 Stormscope  overlay is active on
the navigation map view, the lightning, strike, or
cell rate annunciator is displayed in the lower--left
of the display. The WX--500 Stormscope  does not require a valid
heading to display on the NAV MAP overlay. A valid heading is required
only for the strikes view.
If the GPS position is invalid or unavailable, the
lightning symbols are removed from the display,
and a red horizontal line is displayed over the
rate annunciator.
Satellite lightning is described in Section 10, Datalink Weather View.
Lightning is described in detail in Section 12, Lightning Detection View.
Lightning symbols are removed from the
navigation map and xRMVD or +RMVD
replaces the rate annunciator in the lower--right
corner when the range is less than 20 NM. Lightning data is not
displayed if aircraft heading information is not available.