Garmin GNC 420W Pilots Guide - Page 191
ADDITIONAL FEATURES, 11.1 Traffic Information Service (TIS)
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SECTION 11 ADDITIONAL FEATURES SECTION 11: ADDITIONAL FEATURES CAUTION: The Weather Data Link and TIS information contained in this section is not intended to replace the documentation that is supplied with the GDL 49, the GDL 69(A) Data Link, and the GTX 330 Transponder. CAUTION: TIS is not intended to be used as a collision avoidance system and does not relieve pilot responsibility to 'see and avoid' other aircraft. TIS should not be used for avoidance maneuvers during Instrument Meteorological Conditions (IMC) or other times when there is no visual contact with the intruder aircraft. TIS is intended only to assist in visual acquisition of other aircraft in Visual Meteorological Conditions (VMC). Avoidance maneuvers are not recommended, nor authorized, as a direct result of a TIS intruder display or TIS alert. NOTE: Garmin is not responsible for Mode S geographical coverage. Operation of the ground stations is the responsibility of the FAA. Refer to the Aeronautical Information Manual for a Terminal Mode S Radar Site Map covering the U.S. NOTE: This Section assumes the user has experience operating the GNC 420 unit and the Garmin GTX 330 Transponder. NOTE: TIS and Weather Data Link displays are available only when GNC 420 units are configured with the GTX 330 Mode S Transponder and a GDL 49 or GDL 69(A) Data Link Satellite Receiver. NOTE: Proximity Advisories and Other Traffic symbols normally displayed in white may be displayed in cyan if configured for alternate traffic color (see the 400 series installation manual). 11.1 Traffic Information Service (TIS) This section is written for: • Garmin GNC 420 Main System Software Version 5.01 and later • GTX 330/330D Main Software Version 4.01 and later Some differences in operation may be observed when comparing the information in this manual to earlier or later software versions. NOTE: This section is written exclusively for GNC 420 units that are configured with the GTX 330 Mode S Transponder. Refer to the 400/500 Series Display Interfaces Pilot's Guide Addendum (190-00140-10) when interfacing with nonGarmin products. TIS Operation Traffic Information Service (TIS) provides a graphic display of traffic advisory information in the cockpit for non-TCAS equipped aircraft. TIS is a ground-based service providing relative location of aircraft tracked by ATC radar within a specified service volume. The TIS ground sensor uses real-time track reports to generate traffic notification. TIS Traffic display is available to aircraft equipped with a Mode S Data Link, such as the Garmin GTX 330 Transponder. TIS traffic information from a GTX 330 Transponder can then be displayed on a GNC 420 unit. Surveillance data includes aircraft tracked by ATC radar within the coverage volume. Aircraft without an operating transponder are invisible to TIS. 190-00140-20 Rev. K GNC 420(A) Pilot's Guide and Reference 11-1
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