Garmin GNC 355 Pilot's Manual page 281

GP Glidepath
GPS Global Positioning System
GPSS Global Positioning System Steering
GRS Garmin Reference System
GS Glideslope
GSL Geometric Sea Level
GSU Garmin Sensing Unit
GTP Garmin Temperature Probe
H
HDG Heading
HOT Hazardous Obstacle Transmission
HPL Horizontal Protection Level
HSDB High Speed Data Bus
I
IAF Initial Approach Fix
IAS Indicated Airspeed
IAT Induction Air Temperature
IFR Instrument Flight Rules
IGRF International Geomagnetic Reference Field
ILI Imminent Line Impact
ILS Instrument Landing System
INT Intersection
IOI Imminent Obstacle Impact
ISA International Standard Atmosphere
ITI Imminent Terrain Impact
K
KIAS Knots Indicated Airspeed
190-02488-01 Rev. B Pilot's Guide
Glossary
8-3