Garmin GTX 330 User Manual

190-00207-02 GTX 330/330D Installation Manual
Rev. U Page 4-9
CAUTION
If the unit is removed from the aircraft and operated, always connect J3302 (and
J3303 for GTX 330D) to an antenna or a 50 Ω, 5-Watt load. The GTX 330
transmits Mode S acquisition squitter replies about once per second whether
interrogations are received or not.
NOTE
The installation of an optional software upgrade connector is highly recommended. If the
connector is wired in the aircraft, transponder removal and reinstallation for software
upgrade is not required.
Beginning with SW version 3.06, the GTX 330 software can be updated in the Configuration mode as well
as in Test mode. Updating software in Configuration mode does not require the TEST MODE SELECT
switch. See Figure 4-3 for software update connections.
Figure 4-3. GTX 330 Software Update Connections
4.6.3 Aircraft with Both TIS and TCAS/TCAD Installed
Refer to
Figure D-8 for wiring connections. If redundant traffic systems are desired in the aircraft, such as
TIS and TCAD/TCAS, both systems cannot be connected to the same 400/500 Series unit to display traffic
simultaneously. In a multiple traffic system/multiple 400/500 Series unit installation, connect ARINC 429
CHANNEL 1 from the GTX 330 to only one of the 400/500 Series units and ARINC 429 CHANNEL 2 to
the other 400/500 Series unit.
Table 4-9 Affected Serial Numbers
Unit Name Garmin P/N Serial Numbers Affected
GTX 330
011-00455-00 84113984 and above
011-00455-20 84305559 and above
GTX 330D
011-00455-10 84205684 and above
011-00455-30 84405736 and above
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Garmin GTX 330 Specifications

General

Reply Frequencies	1090 MHz
Frequency Range	1090 MHz (reply)
Power Output	200 Watts peak
Dimensions	5.7 x 1.6 x 7.5 inches (145 x 41 x 191 mm)
Temperature Range	-20°C to +55°C
Operating Voltage	11-33 VDC