User Manual Part 1

User Guide to Q4000/QPRO
Document Number 1135-4713 Rev G
THIS DOCUMENT CONTAINS CONFIDENTIAL AND PROPRIETARY INFORMATION OF QUAKE GLOBAL CORPORATION. IT MAY BE USED BY
RECIPIENT ONLY FOR THE PURPOSE FOR WHICH IT WAS TRANSMITTED AND WILL BE RETURNED UPON REQUEST OR WHEN NO LONGER NEEDED
BY RECIPIENT. DISCLOSURE TO UNAUTHORIZED THIRD PARTIES OR DUPLICATION WITHOUT THE EXPRESS WRITTEN PERMISSION OF QUAKE
GLOBAL IS PROHIBITED.
Page 29
CONFIDENTIAL
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3.1.3 Iridium
Iridium Antennas must be approved by Iridium before being used on the Iridium network. A list of
approved antennas can be found on Iridium’s home page at www.iridium.com.
When selecting an Iridium antenna, make sure it is a 50 ohm, Gain 3dBi maximum, polarization
Right Hand Circular Polarized (RHCP) and VSWR 1.5:1 or better (in both receive and transmit
bands) for optimal messaging. Make sure that the Iridium antenna is located so it has an
unobstructed view of the sky.
There cannot be more than a 3 dB loss between the antenna and the modem.
The antenna must be placed greater than 20cm from a person. If antenna is placed within 20cm
of a person, the system integrator needs to assess the final product against SAR regulation.
3.1.4 Inmarsat
There is currently one antenna version available for use, which is part number ST901009-ATY. It
is a non-standard, custom colored, external antenna with TNC connector. The antenna should be
mounted where it has an unobstructed view of the sky and satellite. For a mobile installation, this
means at the highest point on the vehicle where it has a clear view in all directions. No object
should block the antenna above a 20° elevation angle in order to ensure an optimal line of sight
with the satellite.
3.1.5 GSM/GPRS
The GSM/GPRS antenna does not require an unobstructed view of the sky. However, for optimal
performance, an unobstructed view is preferable.
GSM antenna requirements
• Gain must be less than 3dBi.
• Must be placed greater than 20cm from a person. If antenna is placed within 20cm of a
person, the system integrator needs to assess the final product against SAR regulation.
• If the antenna is co-located and transmitting simultaneously with another antenna, additional
FCC/IC testing may be required.
• Antenna cannot be placed within a metal shield and must be installed with care to avoid any
interference with other electronic devices.
3.2 Antenna grounding
Grounding may be done in several ways:
• Fixed Site: Grounding Rods should be connected to the antenna shield. Keep grounding
systems as short as possible.
• Mobile: Chassis Ground should be connected to the negative side of the battery. Make
sure all connections are corrosion free.
• Marine Grounding Systems: Skilled marine electricians should be consulted when adding
an ORBCOMM solution.