Global Positioning System

We have evaluated about dozen of different GPS receivers before selectiong this one and we found this to be the most sensitive and with the least power consumption of all devices we tested (Mstar, Skytraq etc), we found that SIRF STAR III chipset allow satelite tracking even withing buildings and with the only 38mA power consumption this device beats all other we have tested.

FEATURES:

• Built-in SiRF Star III chipset
• 200,000 effective correlators for fast TTFF
• 20 channels “All-In-View” tracking
• Cold/Warm/Hot start time: 42/38/1 sec. (average)
• Reacquisition time: 0.1 sec.
• Superior sensitivity: -159dBm tracking
• Ultra low power design (38mA, typical)
• Frequency L1, 1575.42MHz
• C/A Code 1.023MHz chip rate
• Power DC 3.3 ~ 6V, typical 5V
• Internal Back-up battery 3.0V, 5.5mAh, Lithium battery
• Back-up Current 7µA typ.
• Update Rate 1 Hz (max.)
• Accuracy Position 5 - 25m CEP without SA
• Velocity 0.1m/sec, without SA
• Time 1µs synchronized to GPS time
• Altitude