ADS-B Compliant WAAS Sensor

The NXG-900 is designed to operate with the ACSS family of NextGen transponders and uses signals from the GPS satellite constellation and Satellite-Based Augmentation System (SBAS), including Wide Area Augmentation System (WAAS) and others. Purchased as a commercial-of-the-shelf package, the NXG-900 with one or two NXT-600, -700 or ATDL Mode S transponders provides legacy aircraft operators with a simple path to satisfy upcoming ADS-B mandates.

  • Rule-compliant WAAS position source
  • ADS-B In providing 978 MHz UAT, Free Weather (FIS-B)
  • Wi-Fi dongle interface module to compatible mobile applications
  • Certified to TSO-C145c, -C154c and C157a

The NXG-900 provides an ARINC 743A based output, while meeting the Part 25 aircraft environmental levels.

Free weather

The NXG-900’s ADS-B receiver provides subscription-free weather (FIS-B) to mobile applications such as Android, iOS and Windows. FIS-B weather products include NEXRAD, CONUS NEXRAD, METARs, TAFs, PIREPs, winds and temperatures aloft, NOTAMs, AIRMETs and SIGMETs.


In addition to the GPS satellite constellation, SBAS and WAAS, the NXG-900 utilizes signals from EGNOS (Europe), GANAN (India), and MSAS (Japan).


Environmental DO-160G
TSO/ETSO C145c, C154c, C157a
Software DO-178B Level C
ADS-B Capability ADS-B In per DO-260B (for FIS-B)
GPS Capability Class Beta-1 per RTCA DO-229D
Operating Altitude Sea level to 55,000 feet
Note: UAT capability is restricted to 24,000 feet or below
Operating Temperature -55 to +70 degrees C
Power 28 VDC
Power Consumption 8.9 Watts (nominal), 11.5 Watts (maximum)
No. of Antenna Ports 2 (GPS & L-Band/UAT)


Size (inches) 2.29 (H) x 4.78 (W) x 6.50 (L)
Weight 1.6 lb.
Mounting 4-point flange mount
Cooling Passive


Diagn. Tool Interface Mini-USB or Wi-Fi
Mobile Applications Wi-Fi
Transponder Interface Compatible ACSS transponders

Product Support

Repair and Overhaul Administration:
Phone: +1 (623) 445-7030
Fax: +1 (623) 445-7002

Product Support/Customer Service:
Phone: +1 (623) 445-7070
Fax: +1 (623) 445-7001

AOG Services:
Regional, Business Jet & Military
Administered by logistics partner AVGroup
Provides exchange and rental services of ACSS LRUs to existing ACSS customers.
Phone: +1 (866) AOG-TCAS or (866) 264 8227 US callers
Phone: +1 (678) 597-2792 International callers
Fax: +1 (770) 457-8563

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