Garmin GNC 420W Pilot's Manual Addendum

Also see for GNC 420AW: Maintenance manual Pilot's guide addendum Quick reference guide Pilot's Guide & Reference Pilot's Guide & Reference

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Garmin GNC 420W Pilot's Manual Addendum Manual pdf 12 page image

1010SECTION 3: SKYWATCH INTERFACEIntroductionWith the exception of traffic display range selec-tions, all information in this section pertaining to thedisplay and control of the L-3 SKYWATCH (SKY 497)also applies to the L-3 SKYWATCH HP (SKY 899) andthe Bendix/King KTA 870/KMH 880—this includesTCAS-like symbology. Traffic display range selectionsare as follows:• SKYWATCH (SKY 497)—2 NM, 2 and 6 NM, and6 and 12 NM.• SKYWATCH HP (SKY 899)—2 NM, 2 and 6 NM,6 and 12 NM, and 12 and 24 NM.• Bendix/King KTA 870/KMH 880—2 NM, 2 and6 NM, 6 and 12 NM, 12 and 24 NM, and 20 and40 NM.The Standby Screen appears when theSKYWATCH passes the power-up test. NOTE:when the system is in standby, the SKY-WATCH does not transmit, interrogate, ortrack intruders aircraft.SKYWATCH DescriptionPlease, refer to the SKYWATCH Pilot’s Guide for acomplete description of the SKYWATCH system.Traffic Page showing Bendix/King KTA 870/KMH traffic near the 40 nautical mile range,at 10 o’clock above.Power-up Self-TestCheck for the following test criteria on the TrafficPage during power-up:1. If the SKYWATCH passes the power-up test andyour aircraft both has a squat switch and is onthe ground, the Standby Screen is displayed(see sidebar).2. If the SKYWATCH passes the power-up testand your aircraft both has a squat switch andis airborne, the Traffic Page is displayed on the6-NM display range and in the normal altitudedisplay mode.3. If the SKYWATCH passes the power-up test andyour aircraft does not have a squat switch, theStandby Screen is displayed.4. If the SKYWATCH continues to fail, please refer tothe failure response section in the SKYWATCH Pilot’sGuide on actions to take.Section 3Skywatch Interface