Alignment - Motorola 9000SM - Canopy 900 MHz Subscriber Module User Manual

The Link Test is a test for measuring the throughput and efficiency of the RF link between two
Canopy modules.
To perform a link test enter a number into the field labeled " Duration ". The duration is the number
of seconds the RF link will be tested. Start the link test by clicking the " Start Test " button. The test
will now run for the set duration. If the web page is not set to automatically refresh, click the
" Refresh Display " button to see the results. For a Canopy System link to be considered acceptable
it is necessary for the efficiencies of the link test to be greater than 90% in both the uplink and
downlink direction. It is recommended that when a new link is installed that a link test be executed
to ensure that the efficiencies are within recommended guidelines.
The key fields are:
•
Downlink RATE, bits per second
•
Uplink RATE, bits per second
•
Downlink Efficiency, percent
•
Uplink Efficiency, percent

Alignment

The Alignment web page contains tools to assist in the alignment of a subscriber module to an
access point module. There are two modes that can be utilized when aligning a module: 1) RSSI
only and 2) normal alignment mode.
RSSI Only is a mode where the module will report the signal strength based on the amount of
energy present at a selected frequency. The subscriber module does not have to be registered to
an access point module for information on signal strength to be reported back. This can simplify the
aiming process for long links when the Canopy passive reflector (5.7GHz band only) is being used.
To utilize RSSI only mode:
•
Choose the frequency to monitor from the pick list (this would be the same frequency that
the access point module is transmitting on)
•
Click the radio button to highlight " Enable " on RSSI Only mode