EG_GenPro53e_1040_UG_003_UK
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Descriptions and non-contractual illustrations in this document are given as an indication only.
ERCO&GENER reserves the right to make any modifications
8.2.8 RF GSM/DCS characteristics
8.2.8.1 RF functioning
The RF functioning complies with the ETSI GSM Standards.
The RF performances for the receiver and the transmitter are described below.
Table: Parameters of the RF receiver and transmitter
Receiver
Sensitivity in 850/900
- 106 dBm, GPRS Coding Scheme 1 (CS1)
Sensitivity in 1800/1900
- 106 dBm, GPRS Coding Scheme 1 (CS1)
Transmitter
Maximum power (Power Class1 - 850/900) at
ambient temperature
33 dBm +/- 2 dB @ antenna connection
Maximum power (Power Class4 - 1800/1900) at
ambient temperature
30 dBm +/- 2 dB @ antenna connection
8.2.8.2 GSM external antenna
The GSM external antenna is connected to the modem via the FAKRA-D connector.
The external antenna must have the characteristics described in the table below.
Table: Characteristics of the GSM external antenna
Frequency band
850/900/1800/1900 MHz
Impedance
50 Ohms nominal
DC impedance
0 Ohm
Gain
0 dBi in a mini direction
VSWR (Rx max TX max)
1.5:1
Polarization Linear
See paragraph 10 Recommended accessories, for the GSM antennas recommended by
ERCO & GENER.
