1: Introduction
GPS/GLONASS Receiver Module A5100-A User Guide
11
1.5 Characteristics
The modules are characterized by the following parameters.
1.5.1 GPS & GLONASS Characteristics
Channels
52, parallel tracking
Correlators
~ 400,000
Frequency
GPS
L1 (= 1,575 MHz)
GLONASS
FDM L1 (=1,602 MHz)
Tracking Sensitivity
(1)
GPS & GLONASS
-165 dBm
Horizontal Position Accuracy
Stand alone
< 2.5 m CEP (SA off)
Time To First Fix
– TTFF
(theoretical minimum values;
values in real world may differ)
Obscuration recovery
(2)
0.1 s
Hot start
(3)
< 1 s
Warm
(4)
< 30 s
Cold
(5)
< 35 s
Table 1: A5100-A GPS&GLONASS 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
A5100-A
Mechanical
dimensions
Length
Width
Height
10.2±0.20 mm, 0.4
±0.008”
15.24±0.20 mm, 0.59
±0.008”
2.5 mm, 0.1
” (Max)
A5100-A
Weight
0.6 g, 0.022 oz
Table 2: A5100-A dimensions and weight
1.6 Handling Precautions
The GPS/GLONASS receiver module A5100-A is sensitive to electrostatic discharge
(ESD). Please handle with appropriate care.
