Garmin International Inc 01443 Manual De Usuario
Page 1-2
GTX 3000 Installation Manual
Revision A
190-00926-01
Surveillance identifier (SI) codes are a set of 64 IDs that uniquely identify ground radars within a Mode S
coverage area. SI codes were a later expansion upon the original 16 ID “interrogator codes” that allows a
reduction in ground station infrastructure complexity. These 16+64 ID codes allow transponders to
communicate with select ground stations when the transponder is within range of multiple ground stations.
Flight in Europe mandates a transponder support SI codes.
coverage area. SI codes were a later expansion upon the original 16 ID “interrogator codes” that allows a
reduction in ground station infrastructure complexity. These 16+64 ID codes allow transponders to
communicate with select ground stations when the transponder is within range of multiple ground stations.
Flight in Europe mandates a transponder support SI codes.
Class 1: The Mode S MOPS defines two classes of Mode S transponders: class1 and class 2. Class 1
equipment has higher minimum transmit power and reply rates than class 2 equipment. The MOPS
explains that class 2 equipment is intended to be restricted to aircraft that operate below 15,000 feet
altitude and have a maximum cruising true airspeed below 175 kt. Class 1 transponders are for aircraft that
operate above those speed and altitude boundaries.
equipment has higher minimum transmit power and reply rates than class 2 equipment. The MOPS
explains that class 2 equipment is intended to be restricted to aircraft that operate below 15,000 feet
altitude and have a maximum cruising true airspeed below 175 kt. Class 1 transponders are for aircraft that
operate above those speed and altitude boundaries.
ADS-B transmit is the GTX3000’s other primary function. The unit is certified to TSO-C166b and ETSO-
C166a. It is certified to meet the DO-260B MOPS. The unit is a class B1 device per RTCA DO-260B.
This indicates the GTX3000 is transmit-only device for aircraft (vs ground vehicles or fixed objects) with a
minimum of 125 watts peak pulse power and supporting the following messages:
C166a. It is certified to meet the DO-260B MOPS. The unit is a class B1 device per RTCA DO-260B.
This indicates the GTX3000 is transmit-only device for aircraft (vs ground vehicles or fixed objects) with a
minimum of 125 watts peak pulse power and supporting the following messages:
• Airborne Position
• Surface Position
• A/C Identification & Category
• Airborne Velocity
• A/C Operational Status
• Extended Squitter A/C Status.
• Surface Position
• A/C Identification & Category
• Airborne Velocity
• A/C Operational Status
• Extended Squitter A/C Status.
1.3 Interface Summary
The GTX 3000 provides the following interface connections via the rear connector. See Section 4 and
Appendix C for connection details.
Appendix C for connection details.
• Diversity Antenna Ports
• Two bidirectional RS-232 and one bidirectional RS-422 serial connections for data and control
• Eight ARINC 429 inputs and four ARINC 429 outputs supporting various ARINC protocols to
• Two bidirectional RS-232 and one bidirectional RS-422 serial connections for data and control
• Eight ARINC 429 inputs and four ARINC 429 outputs supporting various ARINC protocols to
maximize options for connectivity and allow redundancy
• Ten (10) encoding altimeter inputs
• External IDENT input
• External suppression pulse input/output
• Switched power output of up to 1.5 amps (for powering an encoding altimeter)
• Remote power turn on
• External IDENT input
• External suppression pulse input/output
• Switched power output of up to 1.5 amps (for powering an encoding altimeter)
• Remote power turn on
DRAFT