Stage 3: Rf Survey; Rf Planning For Dense Installations And Collocated Sites - Radwin 5000 HPMP User Manual

Additional Outdoor Site Requirements
7. Determine the ground and lightning connection points of the installation. The ODU
and PoE must both be grounded.
8. Using the Ohmmeter, measure and record the resistance of the required installation
to the grounding point. The resistance must be less than 1O ohm.
9. Review the results of the physical site survey. Decide if the site is suitable for the
wireless network installation.
• If the site is suitable, continue with stage 3, the RF survey
• If the site is not suitable, survey another site
Additional Outdoor Site Requirements
The ambient outdoor operating temperature should be ‐35 to 60C (‐31 to 140F).
Additional Indoor Site Requirements
The ambient operating temperature should be 0 to 50°C (32 to 122 °F) at a humidity of up to
90%, non condensing
Stage 3: RF Survey
The RF survey examines the wireless environment of the installation site, to determine
whether there are available channels within the radio operating frequency band. An RF
survey is performed using a spectrum analyzer.
It is advisable to familiarize yourself with the spectrum analyzer before going out on site,
specifically the Max Hold and Marker functions.
You should perform the RF survey at each of the proposed sector sites.
The survey should be carried 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.
RF Planning for Dense Installations and
Collocated Sites
Interference may arise from
• Self‐interference 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, use an HSS unit to synchronize between them. Select a
different operating channel for each collocated RADWIN unit.
RADWIN 5000 HPMP User Manual Release 3.5.70 3‐4