AsteRx-m3 is a satellite-navigation receiver that processes GNSS signals to determine position and timing. It supplies navigation information to a host installation, with antenna selection and correction services defined by the required positioning performance.
The AsteRx-m3 is a multi-frequency, multi-constellation GNSS receiver on an OEM board from Septentrio, a GPS receiver (GNSS receiver) for integration into unmanned vehicles, survey equipment and marine systems. This description follows the Fg version of the family, which is aimed at marine survey and construction. The receiver determines position, velocity and timing from satellite signals and can be used as a rover or as a base station for RTK.
The receiver tracks GPS, GLONASS, Galileo, BeiDou, QZSS and NavIC signals on three frequencies, using 544 hardware channels. Differential corrections from the SBAS systems EGNOS, WAAS, GAGAN, MSAS and SDCM are supported. The update rate reaches 100 Hz, which gives the control software a short measurement interval, and reacquisition after a signal loss takes about one second. In dual-antenna mode, the board adds sub-degree heading and pitch or heading and roll, which is useful where a compass is unreliable, for instance near large metal structures or motors.
For high-accuracy work, the Fg version supports RTK corrections and Fugro Marinestar PPP corrections for positioning at sea. Correction formats include RTCM versions 2 and 3, CMR 2.0 and CMR+, and the output formats are SBF and NMEA 0183 (v3.031 and v4.0). Galileo OSNMA is supported, and AIM+ provides interference monitoring and mitigation to protect against jamming. L-Band reception is supported.
Integration is by a board-level connector set. The listed interfaces are four high-speed serial ports (LVTTL), Ethernet, USB, a PPS output and two event markers, and the unit provides FTP and NTRIP functions. The supply voltage is 3.3 to 3.5 V and the typical consumption is 0.1 W as given by the data listing, so the board fits into designs with a small power budget. It weighs 27 g.
The operating temperature range is -40 C to +85 C, the humidity tolerance is 5 to 95 % without condensation, and the maker lists shock and vibration resistance to MIL-STD-810G. Listed compliance is CE, RoHS and WEEE, and the maker is certified to ISO 9001:2015.
Typical applications are marine survey and construction, with the receiver as the position and heading source for survey vessels and unmanned surface vehicles. Other versions of the family serve rover and reference-station roles for UAV mapping and robotics, where the same board-level size, weight and power advantages apply.
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FeaturedGNSS receivers
FeaturedGNSS receivers
FeaturedGNSS receivers
FeaturedGNSS receivers
FeaturedGNSS receivers
FeaturedGNSS receivers
