Garmin GTN 750 Pilot's Guide - Page 43

2.1.4 Ground 1. Touch the Ground key to place the transponder into Ground mode. Mode S replies will be allowed in Ground mode. Foreword Getting Started Active XPDR and IDENT Enabled Audio & Xpdr Ctrl Transponder Operation "Ground" Mode Com/Nav Figure 2-5 Transponder Mode "Ground" Indication FPL 2.1.5 2.1.6 Direct-To On 1. Touch the On key for Mode A operation. The transponder is Proc "On" and will transmit its squawk code when interrogated. Charts Transponder Operation "ON" Mode Figure 2-6 Transponder Mode "ON" Indication Wpt Info Map Altitude Reporting Traffic 1. Touch the Altitude Reporting key for Mode C operation. Terrain 2. The transponder will be "On" and will transmit its squawk code and altitude when interrogated. An "ALT" annunciation Weather will appear when the squawk code is transmitted. Nearest 2.1.7 VFR Touch the VFR key to set the VFR squawk code (1200). VFR (1200) Transponder Squawk Code Figure 2-7 Transponder VFR Squawk Code Music Utilities System Messages Symbols Appendix 190-01007-03 Rev. B Garmin GTN 725/750 Pilot's Guide 2-3 Index