82046-PG-B1
ST3400H PILOT’S GUIDE
Page 16-1
16 ACRONYMS
ACK Acknowledge
ADS-B
Automatic Dependent Surveillance - Broadcast
AHRS
Attitude/Heading Reference System
BIT Built-In-Test
CFIT
Controlled Flight Into Terrain
CM Configuration
Module
CRC
Cyclic Redundancy Check
ECRT
Excessive Closure Rate to Terrain
EDGSD
Excessive downward Glideslope Deviation
EMS
Emergency Medical Service
ERD
Excessive Rates of Descent
FAA
Federal Aviation Administration
FITNL
Flight Into Terrain Not in Landing Configuration
FLTA
Forward Looking Terrain Avoidance
FMS
Flight Management System
GPS
Global Positioning System
GPWS
Ground Proximity Warning System
GS Glide
Slope
HDG
Aircraft’s magnetic heading
HTAWS
Helicopter Terrain Awareness Warning System
Hz
Hertz (cycles per second)