User`s manual

V1.2 – May-11 User’s Manual Page 9 of 37
1.5 Characteristics
The modules are characterized by the following parameters.
1.5.1 GPS Characteristics
Channels 48, parallel tracking
Correlators ~ 400,000
Frequency L1 (= 1,575 MHz)
Tracking Sensitivity
(1)
-163 dBm
Horizontal Position Accuracy Stand alone < 2.5 m CEP (SA off)
Obscuration recovery
(2)
0.1 s
Hot start
(3)
< 1 s
Warm
(4)
< 32 s
Time To First Fix – TTFF
(theoretical minimum values;
values in real world may differ)
Cold
(5)
< 35 s
Table 1: A2100-A/B GPS characteristics
(1) Typical with good antenna – see also paragraph “3.2 Antennas”
(2) The calibrated clock of the receiver has not stopped, thus it knows precise time (to the µs level).
(3) The receiver has estimates of time/date/position and valid almanac and ephemeris data.
(4) The receiver has estimates of time/date/position and recent almanac.
(5) The receiver has no estimate of time/date/position, and no recent almanac.
Note: Performance (sensitivity and TTFF) might slightly decrease below -30°C.
1.5.2 Mechanical Characteristics
A2100-A/B Mechanical
dimensions
Length
Width
Height
15.24 mm, 0.6”
15.24 mm, 0.6”
2.4 mm, 0.095”
A2100-A/B Weight 1.2 g, 0.042 oz
Table 2: A2100-A/B dimensions and weight
1.6 Handling Precautions
The GPS receiver module A2100-A/B is sensitive to electrostatic discharge (ESD).
Please handle with appropriate care.