190-01499-00 Rev. 1
Garmin GTX 3X5 Pilot’s Guide
2-1
2 GTX 3X5 CONTROLS
The GTX 3X5 series transponders share common pilot interface.
2.1 Power Control Keys
NOTE
Regardless of the operating mode, the GTX 3X5 will not
respond to
Air Traffic Control Radar Beacon System (
ATCRBS)
or Mode S All-Call interrogations if Automatic Airborne
Determination (AAD) senses the aircraft is on the ground.
ON
Powers on into ON mode.
ALT
Powers on into ALT mode.
OFF
Powers off.
SBY
Powers on into standby mode.
2.2 Mode Selection Keys
The transponder becomes an active part of the ATCRBS when either the
ON
or
ALT
function is selected.The transponder responds to interrogations from
TCAS equipped aircraft
.
SBY
Selects the standby mode. The transponder will not reply to any
interrogations or transmit ADS-B Out.
ON
Selects the On mode. The transponder replies to interrogations. The Reply
( ) symbol indicates the transponder is actively responding.
The GTX 3X5 transmits ADS-B Out data. Replies and ADS-B Out data do not
include altitude information.
ALT
Alt mode takes into account the air/ground state. The transponder
DRAFT COPY
