State of the Art Receiver The APS-3 uses the AsteRx2 GNSS engine from Septentrio which measures both GPS and GLONASS constellations for robust and accurate satellite positioning. The
advanced receiver technology includes Receiver Autonomous Integrity Monitoring, Multipath Estimation, and a standard output rate up to 10 Hz. The APS-3 combination of a GNSS receiver with
a matched internal antenna provides an integrated product with optimal performance that is ready for use at turn-on.
Base or Rover Configuration With the internal radio designed into each APS-3, any unit may be configured as a local base station to transmit corrections for RTK surveys without any change in hardware. For extended transmission range, external radios may be interfaced through a serial port.
Multiple Communication Choices Surveyors have a choice of communications options that are all integrated into the single rugged housing. These communications options include: a
GSM/GPRS modem for connecting to Real Time Reference Station Networks, a choice of either digital Spread Spectrum (900 MHz) or digital UHF (450-470 MHz) radios for local data
transmissions, or the option to use an external radio through a serial port.