Figure 3-9 - Miscellaneous; Figure 3-10 - Measurement Of; Gps V Ertical O Ffset - Garmin GNS 480 Installation Manual

Post-Installation Configuration & Checkout
Figure 3-9 - Miscellaneous Setup Items
3.2.1.7 GPS Vertical Offset Setup
The GPS Vertical Offset setup function is used to enter the height above ground of the GPS antenna.
Prior to proceeding, measure the GPS antenna vertical offset (to the nearest foot) as shown in Figure
3-10.
Figure 3-10 – Measurement of GPS Vertical Offset
While on the Ground Maintenance SETUP menu Page 2, press the GPS line select key. The GPS
Vertical Offset setup page is shown in Figure 3-11.
GNS 480 (CNX80) Installation Manual560-0982-01 Rev A 3-9