SiRFstarIII is a range ofhigh sensitivity GPSmicrocontroller chips manufactured bySiRF Technology. GPS microcontroller chips interpret signals fromGPS satellites and determine the position of the GPS receiver. It was announced in 2004.^[1][2]

SiRFstarIII features:^[3]

• A 20-channel receiver, which can process the signals of all visible GPS andWAAS satellites simultaneously.
• Power consumption of 62 mW during continuous operation.
• Assisted GPS client capability can reduceTTFF to less than one second.
• Receiver sensitivity of -159 dBm while tracking.
• SBAS (WAAS,MSAS,EGNOS) support

• SiRFstarIII product web page
• SiRFstarIII OpenStreetMap

• Microcontrollers
• Global Positioning System