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4
Antenna Interfaces
The module includes one main antenna interface (ANT_MAIN) and one Rx-diversity antenna interface
(ANT_DIV) which is used to resist the fall of signals caused by high speed movement and multipath effect.
The antenna ports have an impedance of 50 Ω.
4.1. Main/Rx-diversity Antenna Interface
4.1.1. Pin Definition
The pin definition of Main/Rx-diversity antenna interfaces are shown below.
Table 28: Pin Definition of Main/Rx-diversity Antenna Interfaces
Pin Name
Pin No.
ANT_MAIN
143
ANT_DIV
170
4.1.2. Operating Frequency
Table 29: Module Operating Frequencies
3GPP Band
GSM850
EGSM900
DCS1800
PCS1900
WCDMA B1
WCDMA B2
AG525R-GL_QuecOpen_Hardware_Design
I/O
Description
AI/AO
Main antenna interface
AI
Receive diversity antenna interface
Transmit
824–850
880–915
1710–1785
1850–1910
1920–1980
1850–1910
Automotive Module Series
AG525R-GL QuecOpen Hardware Design
Comment
50 Ω impedance
50 Ω impedance
Receive
869–894
925–960
1805–1880
1930–1990
2110–2170
1930–1990
Unit
MHz
MHz
MHz
MHz
MHz
MHz
70 / 104
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