Rainbow Electronics GM862-GPS - Manual (Page 14)

GM862-GPS Hardware User Guide
1vv0300728 Rev. 8 - 20/09/07
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 14 of 73
4 Antenna
4.1 GSM Antenna Requirements
The antenna for a Telit GM862-GPS device shall fulfill the following requirements:
ANTENNA REQUIREMENTS
Frequency range Depending by frequency band(s) provided by
the network operator, the customer shall use
the most suitable antenna for that/those
band(s)
Bandwidth 80 MHz in EGSM 900, 70 MHz if GSM 850,
170 MHz in DCS, 140 MHz PCS band
Gain Gain < 3dBi
Impedance 50 ohm
Input power > 2 W peak power
VSWR absolute
max <= 10:1
VSWR
recommended <= 2:1
Furthermore if the device is developed for the US market and/or Canada market, it shall comply to the
FCC and/or IC approval requirements:
This device is to be used only for mobile and fixed application. The antenna(s) used for this transmitter
must be installed to provide a separation distance of at least 20 cm from all persons and must not be
co-located or operating in conjunction with any other antenna or transmitter. End-Users must be
provided with transmitter operation conditions for satisfying RF exposure compliance. OEM integrators
must ensure that the end user has no manual instructions to remove or install the GM862-GPS
module. Antennas used for this OEM module must not exceed 3dBi gain for mobile and fixed
operating configurations.