Trango Broadband Access5830 - Manual (Page 39)

Deployment
Trango Broadband Wireless — Access5830 User Manual Rev. F page 35
Section 8 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:
• Site Selection
• Site Survey
• Channel Planning
• SU Antenna Alignment
• Link Management Commands
Site Selection
Proper site selection for your AP 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:
• Path from AP to SU should provide unobstructed line-of-sight, thus it is advisable to place the AP as high as
possible on a tall building or tower.
• Ethernet cable limit is 330 feet from Ethernet device (router, switch) to the radio.
• Grounding of radios is recommended for optimal performance.
• AP provides sector coverage of 60° degrees azimuth and 10° degrees elevation
• Consider nearby sources of interference that could degrade the performance of the radio. Mount radio as far
from sources of interference as possible.
!
Note: See Appendix D – RF Primer for more information on site selection.
Site Survey
Both the AP and SU provide a powerful on-board site survey tool, which will tell you if interference is present in the 5.8
GHz or 5.3 GHz bands.
In order to use the survey command, 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 test 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
AP.
The survey can be run from either the browser or command line interface.
See Example on following page:
#> survey ism 30 h
Running site survey for 30 seconds. Press any key to stop