Aviation Integrity for UAS
The world’s lightest TSO CERTIFIED position source


FYXnav is the world’s smallest, lightest TSO CERTIFIED navigation source.  FYXnav brings aviation integrity to unmanned aircraft by combining a high precision WAAS GNSS sensor with an integrated RAIM processor.  Resilient against jamming, spoofing and GPS range errors FYXnav provides reliable navigation in challenging environments.  The position source is a critical part of any UAS operation.  Don’t trust your mission to a smartphone GPS.


FYXnav is an FAA Certified Position Source


FYXnav features a precision WAAS GPS receiver, integrated antenna and a battery backup for quicker position initialization. Integrated security and integrity technologies including Receiver Autonomous Integrity Monitoring (RAIM) and Satellite-Based Augmentation System (SBAS) to detect and correct errors improving accuracy, reliability, and availability.

  • Exceeds the requirements of TSO-C199 TABs Class B.

  • Performs in low sensitivity or high GPS multipath areas.

  • Supports GPS/SBAS GNSS constellations.

  • Battery backup option for fast TTFF.

  • UTC timing output for UAT ADS-B medium synchronization.

  • Integrated RAIM processor for security and integrity protection.

  • Advanced jamming and spoofing detection.

  • Uses SBAS corrections and health messages to detect and correct satellite range errors.

  • Satellite pseudo-range step errors detected and excluded.

  • SBAS fast and long term corrections applied.

FYXnav is the world’s smallest TSO Certified GPS Receiver and Antenna

Technical Specifications


Specification Value
Voltage/Power 4-6V/500mW
Size 42x18mm
Weight 27 grams
Operating Temperature -45° to +70°C
Altitude 25,000′


Specification Value
Sensitivity (Tracking) -166dBm
Sensitivity (Reacquisition) -160dBm
Sensitivity (Cold Start) -148dBm
Sensitivity (Hot Start) -156dBm

Quality Metrics

Specification Value
NACp 11-EPU < 3meters
NACv 1 – 10m/s
SDA 1 – < 1E-3
SIL 1 – < 1E-3
NIC 6 – Rc < 0.5NM

Supported Interfaces

UTCtic 1pps
UART 115200 bps
Protocol uAvionix Binary


FYX Certified GPS Position Source front view

Add aviation grade integrity to your UAS


  • FYXnav TSO Certified Position Source
  • Wi-Fi Programmer
  • Nav cable
  • Quick Start Guide

FYXnav TSO is available by special order only.

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