EG_GenPro400e_1103_UG_001_UK
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Descriptions and non-contractual illustrations in this document are given as an indication only.
ERCOGENER reserves the right to make any modifications.
Dct_427_02
4 GSM external antenna
The GSM external antenna is connected to the modem via the SMA-F connector.
The GenPro400e has been qualified with 2 antennas ercogener reference 636Z232160
In all cases the main antenna (MAIN) is necessary and mandatory.
The auxiliary antenna (AUX) is used in reception for the
• 3G mode (diversity)
• 4G mode (MIMO)
Auxiliary antenna is not mandatory for working but it increases the performance of the
equipment.
Figure 19 : External GSM antenna
The external antenna must respond to the characteristics described in the table below:
Table 25 : Caractéristiques de l'antenne externe GSM
Frequency band
850/900
780..960 MHz (2G, 3G, 4G)
1 800/2 100
1710..1990 MHz (2G, 3G, 4G)
2110..2170 MHz (4G)
2 600
2500..2690 MHz (4G)
Impedance
50 Ohms nominal
Input power
> 2 W
VSWR
< 2.5:1
Peak gain isotropic
2 dBi
Radiation diagram
Omnidirectional
Recommended antenna gain is 2 dBi. Its replacement by an antenna with higher gain will
require a new radio qualification. For more information, please contact our sales department.