Garmin GPS 400W Reference Guide - Page 106
mode to approach mode. CDI scaling is tight, ened from 1.0 NM full scale deflection to either
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5 - PROCEDURES DME Arc Approach 6. Follow the arc, keeping the CDI needle centered. When using an autopilot, the course select on the CDI (or HSI) must be periodically updated with the desired track (DTK) to ensure proper tracking through the arc. Whenever the course select setting and desired track differ by more than 10°, a "Set course to ###°" message will appear on the message page. 7. The next point in the approach is an intermediate fix, labeled "DMARY/D025G". As you approach this intermediate fix, a waypoint alert ("RT TO 205° x S") will appear in the lower right corner of the screen. As the distance to this fix approaches zero, the alert is replaced by a turn advisory ("RT TO 205° NOW"). Dial this course into the CDI (or HSI) using the OBS knob and initiate a standard rate turn to this course heading. less at the FAF. The change occurs over 2 NM and is completed by the FAF. 9. As you approach the FAF, "RT TO 214° x S" will appear in the lower right corner of the screen. Select this course on the CDI (or HSI) using the OBS knob and turn to the final course segment (FAF to MAP) heading. DO NOT USE FOR NAVIGATION 8. When within 45° of the final approach course and the FAF is the TO waypoint, the 400W-series unit will switch from terminal mode to approach mode. CDI scaling is tightened from 1.0 NM full scale deflection to either 0.3 NM or 2° full scale deflection whichever is 96 190-00356-00 Rev G NOTE: Since this is not a GPS approach, the pilot should be using the VLOC receiver, tuned to the correct VOR (TOP) for navigation.