IoT M2M blog

The home of free hints and tips about wireless IoT / M2M

Sirfstar 4 GPS module at a glance

Features of Sirfstar 4 GPS module

Sirfstar 4 GPS module

Sirfstar 4 GPS module

With this SiRFstar 4 GPS module it is possible to develop the world smallest GPS tracker for people or animals with world longest standby time. If you are interested in an evaluation kit, a meeting or a live demo at your office or reference designs, then just send an email to harald.naumann (at) gsm-modem.de or use the FORM


  • Sirfstar 4, GSD4e GPS chip
  • 9.6 x 9.6 x 1.85 mm only
  • Ultra high sensitivity: – 147dBm (cold start) / – 163dBm (tracking)
  • Low Power Consumption: 56mW@1.8V
  • 500uA average power consumption with SiRF Aware
  • Host port configurable to UART, SPI or I2C
  • Several further Sirfstar 4 advanced power modes
  • Carrier Wave Jammer remover, track and remove up to 8 Carrier Waves
  • Self assisted A-GPS = Generating of A-GPS data with Client Generated Extended Ephemeris (CGEE).
  • Indoor tracking by using of 3D sensors on I2C-bus

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