Garmin GNC 420W Pilots Guide - Page 196

SECTION 11 ADDITIONAL FEATURES • DATA FAIL - 'DATA FAIL' is displayed when data is being received from GTX 330 (Figure 11-7), but there was a failure detected in the data stream. The pilot should see the installer for corrective action. Figure 11-7 'Data Fail' Message • FAILED - 'FAILED' is displayed when the GTX 330 has indicated it has failed (Figure 11-8). The pilot should see the installer for corrective action. Figure 11-9 'No Data' Message • OPER - When the Traffic Page displays OPER in the upper right hand corner of the display (Figure 11-11), the TIS system is in operational mode and available to display traffic on the Traffic or Map Page. • STANDBY - When the Traffic Page displays STANDBY (Figure 11-10), the TIS system is in standby mode and cannot display traffic data. Figure 11-8 'Failed' Message • NO DATA - 'NO DATA' is displayed when no data is being received from the GTX 330 (Figure 11-9). The pilot should be aware that this status may be a normal mode of operation in a dual transponder installation where the GTX 330 with TIS is not the selected transponder. Figure 11-10 'Standby' Message • TRFC CST - The 'TRFC CST' (traffic coasting) banner (located above the 'AGE' indicator in Figure 11-6) indicates that displayed traffic is held even though the data is stale. The pilot should be aware that the quality of displayed traffic is reduced in this condition. • TRFC RMVD - The 'TRFC RMVD' banner (Figure 11-11) indicates that traffic has been removed from the display due to the age of the data being too old to 'coast' (for the time period of 12-60 seconds from the last receipt of a TIS message). The pilot should be aware that traffic may be present but not shown. 11-6 GNC 420(A) Pilot's Guide and Reference 190-00140-20 Rev. K