Rf Planning For Dense Installations And Collocated Sites - Radwin 2000+ SERIES User Manual

RF Planning for Dense Installations and Collocated Sites
Carry out during a busy time of day, to best judge the worst‐case radio interference. Allow 2‐4
hours duration for a good RF survey.
It is possible to install the link and use the RADWIN Manager to find a clear
channel. Each frequency channel can be evaluated in turn. Achievement of
a clear channel is indicated by the marker in the Quality bar on the
Channel Setting window (see Figure
3.7 RF Planning for Dense Installations and
Collocated Sites
Interference may arise from:
• Collocated RADWIN radios
• Other collocated radio devices installed on the same site
To avoid or minimize interference, follow these recommendations:
• For collocated RADWIN units, implement Hub Site Synchronization (HSS). This synchro‐
nizes the transmission/reception times of the collocated radio unit.
• If one or more collocated units are not RADWIN units, ensure that there is a physical
separation of at least three meters between a RADWIN unit and any other collocated
radio on the site.
• Use the largest possible frequency gap between these units.
• Choose the best frequency channel (as clear as possible form interference). You may
have to use the Change Band facility available for all RADWIN 2000+ Series products.
• To select a frequency channel, move the link to Installation Mode (using Site configura‐
tion) and start the Installation wizard. In the Channel Settings window, use the quality
bar at the bottom to help you choose a better channel (clearer of interference).
• Use the Spectrum View tool to find the best working channel (Tools | Spectrum View).
• Decreasing the Tx Power of a link will reduce collocation interference (Site Configura‐
tion | Air Interface).
Use the Link Budget Calculator to determine the minimum Tx Power
required to maintain link stability.
RADWIN 2000+ Series User Manual
6‐4) moving into the green area.
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