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L850-GL Hardware User Manual Page 48 of 54
Description
Condition
Test Result
Warm start
34s / -130dBm
Hot Start
2s / -130dBm
GLONASS
Cold start
31s / -130dBm
Warm start
22s / -130dBm
Hot Start
3s / -130dBm
BeiDou
Cold start
148s / -130dBm
Warm start
148s / -130dBm
Hot Start
3s / -130dBm
AGNSS
Cold start
TBD
Sensitivity
GPS
Tracking
-160dBm
Acquisition
-149dBm
GLONASS
Tracking
-160dBm
Acquisition
-146dBm
BeiDou
Tracking
-160dBm
Acquisition
-141dBm
Note:
Please note that GPS current is tested with RF disabled.
4.6 Antenna Design
The L850module provides main and diversity antenna interfaces, and the antenna design requirements
as shown in the following table:
L850 module Main antenna requirements
Frequency range
The most proper antenna to adapt the frequencies should be used.
Bandwidth(WCDMA)
WCDMA band 1(2100) : 250 MHz
WCDMA band 2(1900) : 140 MHz
WCDMA band 4(1700) : 445 MHz
WCDMA band 5(850) : 70 MHz
WCDMA band 8(900) : 80 MHz
Bandwidth(LTE)
LTE band 1(2100): 250 MHz