Garmin GTX 33, Installation Manual, Page: 14 / 83

GTX 33 Installation Manual 190-00906-00
Page 1-6 Rev. F
1.7.2 General Specifications
Table 1-3. GTX 33 General Specifications
Characteristic Specification
Regulatory Compliance;
GTX 33 w/ES, GTX 33D
w/ES
RTCA DO-160D, DO-181C Environmental Conditions
and EUROCAE/ED-73B
Unit Software
RTCA DO-178B Level C/D (refer to Section 1.9.1 for specific
applicability)
Complex Electronic Hard-
ware RTCA/DO-254 Level C (refer to Section 1.9.1 for specific
applicability)
FCC Authorization Emission Designator 12M0M1D
Temperature Range -45°C to +70°C (continuous operation)
Altitude 55,000 Feet
Transmitter Frequency 1090 MHz ±1 MHz
Transmitter Power 125 Watts minimum, 250 Watts nominal
Receiver Frequency 1030 MHz
Receiver Sensitivity -74 dBm nominal for 90% replies
Mode A Capability 4096 Identification Codes
Mode C Capability
100 Foot Increments from -1000 to 62,700 feet.
25 Foot Increments from -1000 to 50,175 feet with suitable serial data alti-
tude.
Mode S Capability Selective Identification Codes, Aircraft Type
External Suppression
Input
Low ≤ 0.5 V; High ≥ 8 V
External Suppression
Output Output: minimum is +18V (for 300 ohm load) and maximum of +23V (for
2000 ohm load)
Audio Output 4.04 Vrms to 7.85 Vrms into a 500 ohm load