Sierra Wireless AirLink MP890, User Manual

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AirLink MP User Guide
26 2130795
900 MHz
1800 MHz
1900 MHz
If your MP modem will only be connected to networks that use one of the
bands, an appropriate single-band antenna is sufficient. Contact your service
provider for information about radio bands used in your area.
For more information about antennas for your installation contact your account
manager.
GPS antenna
The GPS antenna connects to the MP modem using a male SMA connector.
Contact your account manager for more information about compatible GPS
antennas.
AP antenna (MP WiFi only
The AP antenna must be installed by an RF professional. The AP antenna
connects to the MP modem using a reverse polarity male SMA connector.
Note: The WiFi antennas
approved for use with this
device must be of either a
PCB omni antenna with a
gain of no more than +2
dBi, or a dipole antenna
with a gain of no more than
+5dBi. No other antennas
are approved for use with
this device.
Antenna locations
When selecting locations for the Main RF, GPS, and AP antennas:
• Refer to the documentation provided with each antenna to determine whether
it requires a ground plane.
• Ensure that the Main RF antenna is mounted at least 20 cm (8 inches) from
vehicle occupants and bystanders.
• Ensure that all radio antennas (Main RF, GPS, CB radio, car radio) are
mounted at least 20 cm or more apart (30 cm recommended).
• (MP WiFi only) Ensure that the AP antenna is mounted at least 20 cm from
the Main RF antenna.
Install the antennas and cables
Note: When connecting the cables, hand-tighten the connectors; do not use tools.
To install the Main RF, GPS, and AP antennas:
1. Mount each antenna according to the instructions provided with it.
2. Thread the antenna cables to the MP modem. Secure the cables as
necessary.