Fibocom L831-EAU-01 - Receiver Sensitivity; GNSS Support

Reproduction forbidden without Fibocom Wireless Inc. written authorization - All Rights Reserved.
L831-EAU-01 Hardware User Manual Page
33
of
39
4.4 Receiver Sensitivity
The receiver sensitivity for each band of the L831-EAU module as shown in the following table:
Mode
Band
Rx Sensitivity(dBm)
Typical
Note
WCDMA
Band I
-108.5
BER<0.1%
Band VIII
-108.5
BER<0.1%
LTE FDD
Band 1
-100
10MHz Bandwidth
Band 3
-99.5
10MHz Bandwidth
Band 7
-99
10MHz Bandwidth
Band 8
-100.5
10MHz Bandwidth
Band 20
-99.5
10MHz Bandwidth
Band 28
-100.5
10MHz Bandwidth
Note:
The above values are measured for the dual antennas situation (Main + Diversity). For single
main antenna (without Diversity), the sensitivity will drop around 3dBm for each band of LTE.
4.5 GNSS
L831-EAU module supports GPS and GLONASS, as well as aGPS. It adopts two-in-one antenna of RF
Diversity and GNSS. GNSS can be enabled and disabled by AT command, see AT command manual for
details.
In Win10 system, GNSS outputs data by GNSS Sensor.
Description
Condition
Test Result
Power
GPS Fixing
80mA / -130dBm
GPS Tracking
80mA/ -144dBm
GLONASS Fixing
95mA/ -130dBm
GLONASS Tracking
95mA/ -144dBm
Sleep
2.5mA
TTFT
GPS
Cold Start
35s / -130dBm
Warm Start
30s / -130dBm
Hot Start
1s / -130dBm