The Microair Avionics T2000SFL Transponder is a mode 3A/C aircraft transponder designed to operate in an ATCRBS environment.

The T2000SFL has been designed to meet RTCA/DO-144 requirements, and has been tested to DO-160D for environmental and EMC requirements.

The T2000SFL software has been developed and approved under RTCA/DO 178B requirements.

The T2000SFL is a small lightweight transponder with low power requirements. The T2000SFL is compatible with any C88a compliant altitude encoder, and offers the following features:

• Mode 3 A response (4096 codes)
  
• Mode C altitude response
  
• SPI indent response
  
• Encoder Altitude displayed
  
• Altitude Alert (HI / LO)
  
• Voltage alter (OV / UV)
  
• Security coding of serial number
  
• Option to power encoder only in mode C operation.