OEM638 GNSS Receiver

NovAtel OEM638 GNSS Receiver

The OEM638 from NovAtel has reached End of Life (EOL). There is no direct replacement for this product.



The OEM638 GNSS receiver provides flexible positioning options on NovAtel’s most advanced OEM6 receiver. It is capable of tracking all current GNSS signals and upcoming signals GPS L5, Compass and Galileo GIOVE-A and B. The OEM638 receiver offers meter-level to AdVance RTK centimeter-level positioning. Moreover, it is field upgradeable to include additional features.

The OEM638 receiver from NovAtel supports a wide variety of communication interfaces to facilitate simple integration. The API allows system integrators to develop custom-built applications that run on the GNSS receiver. This minimizes hardware requirements and simplifies the integration process.

Furthermore, the OEM638 receiver is SPAN ready, which allows it to be integrated with an Inertial Navigation System to deliver precise and continuous 3D results even at times of signal interruption.


  • Support current and upcoming signals GNSS, Compass and Galileo
  • Software upgradable in the field
  • Support multiple communication interfaces
  • 4GB of built-in storage
  • Data output of up to 100 Hz
  • SPAN ready
  • API available to simply integration

Technical Specifications

Channels:GPS & GLONASS L1/L2, GPS L5, Galileo E1/E5, GIOVE-A and B, QZSS, Compass, L-Band, SBAS, BeiDou
Dimensions (L x W x H):8.5 cm x 12.5 cm x 1.43 cm
Weight:84 g
I/O connector:Male header (40-pin dual row)
Antenna connector:MMCX (female)
Operating temperature:-40 °C to +85 °C
Communication ports:2 RS-232, 3 USB (2 hosts and 1 device), 2 CAN, LAN Ethernet


The OEM638 GNSS receiver from NovAtel provides flexibility and reliability. It is available through Canal Geomatics. For additional information, please use the Request Pricing form to contact us.