Garmin GNC 420W Pilots Guide - Page 205

Altitude Display Mode The GTS 8XX has four altitude display modes (Figure 11-24); Normal (±2,700 ft), Above (-2,700 ft to +9,000 ft), Below (-9,000 ft to +2,700 ft), and Unrestricted (±9,900 ft). The GTS 8XX continues to display up to 30 intruder aircraft within its maximum surveillance range, regardless of the altitude display mode selected. The selected altitude display mode (Figure 11-25) is displayed in the upper left-hand corner of the Traffic Page. Changing the Altitude Display Mode: 1) From the Traffic Page, press the small right knob to activate the cursor and highlight the current mode (Figure 11-25). 2) Turn the small right knob to cycle through the options. The screen changes to display the traffic detected within the selected altitude display range. Refer to Figure 11-24 for information regarding altitude display ranges. +9,900 ft +2,700 ft SECTION 11 ADDITIONAL FEATURES Note: Confirmation is not required, the mode is changed immediately when using the small right knob. Altitude Display Mode Figure 11-25 "UNR" Selected 3) Press the small right knob to turn the cursor off after the selection is made. +9,000 ft +2,700 ft Unrestricted (UNR) Below (BLW) Normal (NRM) Above (ABV) 0 ft Drawing Not to Scale -9,000 ft -9,900 ft Figure 11-24 Altitude Display Modes 0 ft -2,700 ft 190-00140-20 Rev. K GNC 420(A) Pilot's Guide and Reference 11-15