Specifications

17
Antenna
The antenna should fulfill the following requirements:
Frequency range Depending on frequency band(s) provided by the network
operator, the customer shall use the most suitable antenna for
that/those band(s)
Bandwidth 136 MHz in GSM 850/900, 170 MHz in DCS, 140 MHz PCS
Gain > 1.5 dBi
Impedance 50 ohm
Input power > 2 W peak power
VSWR absolute max 10:1
VSWR recommended < 2:1
The module RF signal is routed to a standard UFL connector for off-board antenna
connection. See section 4.12 for a detailed connector description.
NOTE: The modem default configuration is set to the European (GSM-900 GSM-1800)
band frequencies. Users in the US and Canada need to re-configure the modem to the
GSM-850 GSM-1900 bands. Use the "AT#BND=3" command to set the proper band
settings. Please see page 300 in the “Telit AT Commands Reference Guide” for detailed
info about the band configurations.
RF Specifications
Operating Frequency
Mode Freq. TX (MHz) Freq. RX (MHz) Channels
(ARFC)
TX - RX
offset
E-GSM-850 824.2÷848.8 869.2÷893.8 0 – 124 45 MHz
890.0 - 914.8 935.0 - 959.8 0 – 124 45 MHz
E-GSM-900
880.2 - 889.8 925.2 - 934.8 975 - 1023 45 MHz
DCS-1800 1710.2 - 1784.8 1805.2 - 1879.8 512 – 885 95 MHz
PCS-1900 1850.2 - 1909.8 1930.2 - 1989.8 512 – 810 80 MHz
Output Power
Mode Device class Nominal Peak Power
GSM–850/900 class 4 +33dBm
DCS–1800/PCS–1900 class 1 +30dBm
Reference sensitivity
Mode Device class Nominal Peak Power
GSM–850/900 class 4 -107dBm
DCS–1800/PCS–1900 class 1 -106dBm