Doc. Title
ST3940 User Manual
Concerning:
Rev.
Date (dd-mm-yy)
Page of Pages
Features and how to configure ST3940
1.06
0
18-6-19
9 of 54
2-2. GPS Specifications
Item
Description
Receiver Type
GPS & Glonass
GPS L1 band(1575.42MHz), Glonass L1 band (1601.71MHz)
Galileo* E1B/L1, Compass* ready
SBAS : WAAS, EGNOS, MASA, GAGAN
Update Rate
1Hz
Accuracy
1)
Position
2.5m CEP
SBAS
2.0m CEP
Acquisition
2)
TCXO
Cold starts 26s
Aided start<1s
Hot start<1s
Sensitivity
3)
Tracking
-167dBm
Reacquisition
-161dBm
Cold start
-149dBm
Back-up Supply
Voltage range : 2.5V to 3.6V
Antenna type
Patch Antenna
Operating Temperature
-20 ~+60
℃
*1) All SV @
–130 dBm
*2) It depends on aiding data connection speed and latency
*3) The 3 figures were measured with a good active antenna.
