Telit EZ10-GPRS/-PCS
Product Description
80269ST10014a, Rev. 3 – 26/09/05
Reproduction forbidden without written authorization by Telit Communications S.p.A.
Page 22 of 74
All Rights reserved – Right of modification reserved
Less distance and less obstacles there are between the antenna connected to the EZ10 Terminal
and the antenna of the GSM/GPRS network base station, the less power is radiated by the
Terminal under normal conditions and the higher is the safety margin in case of disturbances.
A check of eventual interferences can be made when the EZ10 Terminal transmits at maximum
power level to register to a GSM 900 network (see frequency channel numbers), immediately after
being switched on.
Refer to the chapter “Safety Information” of this Product Description and the documentation of the
antenna in use before activating the EZ10 Terminal.
2.5.10.1 Antenna
Connector
The
Telit EZ10 wireless modem
includes a SMA bulkhead female, class 4 (2W) co-axial
connector for the external antenna.
2.5.10.2 Antenna
Specification
The antenna to be connected shall fulfill the following requirements:
Frequency range
EZ10-GPRS: Standard Dual Band frequency
range,
EZ10-PCS (PYG Option): Standard Tri Band
frequency range
Bandwidth
80 MHz in GSM & 170 MHz in DCS & 140
MHz PCS band
Gain
1.5dBi
≤
Gain
<
3dBi (referenced to isotropic
radiator)
Impedance
50 Ohm
Input power
> 2 W peak power
VSWR absolute
max
<= 10:1
VSWR
recommended
<= 2:1
NOTE: PCS 1900 frequency coverage is required only for the
Telit wireless modems EZ10-PCS
(with PYG Option).