Command Set Summary
Site Selection
Trango Broadband Wireless — User Manual TrangoLINK Rev. A for F/W Ver. 1.0
Page 13
Chapter 4
Deployment
Once you are familiar with the basic operation of the radios you are ready for deployment in the field. The deployment
process consists of the following steps:
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Site Selection
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Site survey at MU and RU sites.
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MU installation
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RU installation and antenna alignment
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Link test
Site Selection
Proper site selection for your MU will help ensure a successful deployment. Site selection will depend on a wide variety
of factors, but from the radio’s performance standpoint, please consider the following:
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Path from MU to RU should provide unobstructed line-of-sight (LOS), thus it is advisable to place MU as high
as possible on a tall building or tower
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Ethernet cable limit is 100 meters from Ethernet device (router, switch) to radio
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Radios should never be deployed without proper grounding
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Carefully note the antenna coverage pattern for type of MURU deployed
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Consider nearby sources of interference which could degrade radio performance. Mount radios as far from
sources of interference as possible
Site survey
Both the MU and RU provide a powerful on-board site survey tool. This tool will tell you if there is interference present
in the 5.8 GHz or 5.3 GHz band.
In order to use the survey tool, the radio must be in opmode “OFF”. The survey can be performed for any specified
amount of time (in seconds) and for either the horizontal or vertical polarization.
Prior to performing the site survey, place the radio in the installation spot, and aim the radio in the desired direction.
After the specified period, the results of this command will provide you with a listing of each channel in the band, the
average signal received, and the maximum signal received during the survey period.
In general you will be looking for frequencies with signal strength of –85 dBm or lower. If interference is present on
various channels, it is recommended that you chose clean channels or alternate polarizations for your deployment. If it is
not possible to use a clean channel/polarization combination, there are various methods available to mitigate the affects of
interference. These methods include the use of the RFRX THRESHOLD settings, or the use of external shields on the
MU. See Example on following page:
