User Manual
 GM862-QUAD / PY Hardware User Guide 
  1vv0300748 Rev. 5 - 20/09/07  
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved    page 13 of 68 
4 Antenna 
4.1   GSM Antenna Requirements 
The antenna for a Telit GM862-QUAD/PY device shall fulfill the following 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-QUAD/PY 
module. Antennas used for this OEM module must not exceed 3dBi gain for mobile and fixed 
operating configurations. 










