Garmin GTX 330 Installation Manual page 6

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Serial altitude or GPS groundspeed input.
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Serial altitude output.
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Mode S with Extended Squitter, Comm A and Comm B protocol.
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Temperature, Altitude Hold, Density Altitude and the ability to enter flight ID or tail numbers.
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Digitally recorded voice and discrete warning annunciator activated by Altitude Hold when limits are exceeded.
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Diversity: GTX 330 is available with or without the Diversity feature.
1.4 GTX 330 TECHNICAL SPECIFICATIONS
1.4.1 GTX 330 Electrical Specifications
SPECIFICATION
TSO, JTSO; GTX 330
TSO, JTSO; GTX 330D
TSO ENV CAT
Applicable Documents
Temperature Range
Power Requirements
Humidity
Altitude
Transmitter Frequency
Transmitter Power
Receiver Frequency
Receiver Sensitivity
Mode A Capability
Mode C Capability
Mode S Capability
External Suppression Input
Page 1-2
Rev. 1
CHARACTERISTIC
TSO-C112 CL
2A4 121 010
TSO-C112 CL
2A4 121 011
Refer to appendix A
RTCA DO-160D, DO-181C
-45°C to +55°C (Continuous Operation)
11.0 to 33.0 Vdc; Power Input: 22 Watts typical,
45 Watts Maximum
95% @ +55°C for 16 Hours; 85% @ +38°C for 32
Hours
55,000 Feet
1090 MHz
125 Watts minimum, 250 Watts nominal.
1030 MHz
-74 dBm Nominal for 90% replies
4096 Identification Codes
100 Foot Increments from -1000 to 62,700 feet.
25 Foot Increments with suitable serial data link.
Aircraft Identification, Altitude and Ground Speed
Low ≤ 0.5 V; High ≥ 8 V
, JTSO-2C112a.
, JTSO-2C112a.
GTX 330 Installation Manual
190-00207-02