Specifications

UC864-E/G/WD/WDU Product Description
80281ST10034a Rev. 4 – 2009-06-24
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3.8.1 GPS Sensitivity*
Time to first fix
Hot start
Autonomous < 1s
Warm start
Autonomous < 32s
Cold start
Autonomous < 40s
Sensitivity
Tracking
Up to -157 dBm
* NOTE:
Performance will vary depending on environment, antenna type, signal conditions,
satellite geometry, and handset implementation.
3.8.2 GPS Consumption*
The typical current consumption of the GPS part of the UC864-G module is:
UC864-G
Mode Average(mA) Mode description
IDLE mode with GPS ON full power mode
WCDMA 117
AT+CFUN=1
GSM 113
WCDMA 109
AT+CFUN=4
GSM 109
Stand by mode; no call in progress; GPS ON
*NOTE:
Except external active GPS antenna.
3.8.3 GPS Driving
The GPS functions are driven from the Base Band processor trough a dedicated AT
command set available in a separate specification.