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Microair Avionics has developed the T2000ADSB transponder to provide for aircraft surveillance requirements of ATCRBS Mode 3A/C with ADS-B. This is a controlled document, and may not be copied, amended, or distributed without the prior consent of Microair Avionics Pty Ltd.
Microair T2000ADSB Transponder. IMPORTANT NOTE The T2000ADSB must be installed and tested by a suitably qualified and authorised Avionics mechanic and all structural changes, such as the GPS antenna installation, must be approved by a suitably qualified and authorised engineer or the aircrafts manufacturer.
A depth of 200mm (8 inches) is recommended to accommodate the transponder and electrical connectors. The T2000ADSB weighs only 685g (24oz). The four M4 x 12mm machine screws are sufficient to support the transponder. No rear support is required unless the panel structure itself is too weak to support the load.
T2000ADSB via a DB25 connector (refer wiring diagram). The power for blind mode C encoders can be supplied from the T2000ADSB and is equal to the aircraft supply voltage. This power is switched when the T2000ADSB is turned on.
4.3 Coaxial Cable The T2000ADSB allows for 2dB cable loss from the unit to the antenna. The installer should consider carefully what type of coaxial cable is to be used, so that this loss limit is not exceeded. The cable should be terminated with a crimped BNC connector rated for 200Wpep and 2GHz such as the Amphenol 112514.
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300mm (1ft) be ordered (available at microair.aero). If shortening a coax cable pay particular attention to the termination. A crimped connector rated for operation up to 2GHz and 200W is required such as the 112514 BNC Connector. T2000ADSB Installation Manual 01R2 Page 8 of 33 Mar 2023...
The T2000ADSB requires the installation of a GPS Antenna to receive a satellite GPS signal required by the unit. The GPS Antenna is connected to the T2000ADSB on the back of the unit via TNC connection. Two types of GPS Antennas are recommended for operation with the T2000ADSB transponder.
The T2000ADSB must be installed with a wiring harness which meets the following requirements. 6.1 General Wiring The T2000ADSB is to be powered from the aircraft supply, via the avionics master and fuse/circuit breaker with a maximum 5 amp rating (3 amp minimum).
Installation Manual 6.2 Audio Beep The T2000ADSB beep function when set to ON, will emit a beep tone on this line. Audio beep should be taken to the Auxiliary input of the aircraft’s radio or Audio Panel. When connecting the beep function to the Microair M760 transceiver, simply join the beep line directly to any headphone line (orange wire in factory supplied harness).
7.0 INITIALISATION AND SETUP On initial power up the T2000ADSB will enter Program Mode to allow the ICAO Code (sometimes call the Mode S code) to be set. It is important that the Emitter Category and Aircraft ID are also set.
7.4 Emitter Category The emitter category is an essential piece of ADS-B data, which is used to describe the aircraft “type”. The T2000ADSB has restricted the category selections to those which are required to transmit airborne ADS-B messages only Press ENTER key...
Aircraft IDs). 7.6 ENCODER SOURCE The T2000ADSB is able to use altitude information from either its internal encoder, or serial or parallel (Gillham) altitude data. If Gillham is selected the T2000ADSB will detect altitude code over the 10 line Gillham interface.
The message SAVED appears briefly on the display The display moves to EXIT PROGRAM menu item 7.8 BAROMETER UNIT (Mb or inHg) The barometric pressure units used by the T2000ADSB can be either MB = millibars, or HG = inches Mercury. Press ENTER key...
The user can exit the PROGRAM MODE menu at any time, from any menu item, by pressing the toggle key. To re-enter the PROGRAM MODE menu the T2000ADSB must be turned off, and re-started using the ON and MODE keys (refer PROGRAM MODE section).
Refer to FAA FAR Part 43 appendix E and F for typical transponder/encoder/altimeter equipment calibration procedures. The diagram below illustrates a standard set up for the testing of the transponder/encoder/altimeter equipment. T2000ADSB Installation Manual 01R2 Page 17 of 33 Mar 2023...
Simulate the aircraft being in the air (follow the aircraft maintenance manual or often the easiest way is to enter Program Mode on the T2000ADSB and change the AIR/GND Logic from Norm to Rev or vice versa). Ensure the following messages are available: 1.
A NIC=5 or 4 only occurs very rarely when there is a GPS constellation issue. If NIC=5 or below then something is probably wrong because real HPLs do not get this low. T2000ADSB Installation Manual 01R2 Page 19 of 33...
8.3.3 Integrity SIL It is important that SIL be a value of 3. SIL is reported in Type 31 and Type 29 messages. Integrity No integrity Inadequate Integrity Acceptable Integrity T2000ADSB Installation Manual 01R2 Page 20 of 33 Mar 2023...
T2000ADSB Transponder Installation Manual 9.0 WIRING DIAGRAMS The drawings defined below for the T2000SFL, are all applicable to the new T2000ADSB and can be installed as approved harnesses. • T2000SFL with EC2002 Altitude Encoder – Serial • T2000SFL with EC2002 Altitude Encoder - Gillham •...
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