Radwin 5000 HPMP - Stage 2: Physical Survey

RADWIN5000HPMPUserManual Release3.5.70 3‐3
Stage2:PhysicalSurvey
5.Determineandrecordthecompassbearings betweenHBSandfixedHSUs,relativeto
north.
6.Iftherear eobstructionsbetweenthetwosites,calculatetheFresnelZone(see
Chapter23fordetails).
7.Ifthesiteschosendonotmeetrequirements,consideralternativesites.
8.UsetheLinkBudgetCalculator(ontheCDsuppliedwiththeequipmentorusingthe
RADWINManager)todeterminetheexpectedperformance.
Stage2:PhysicalSurvey
Thephysicalsitesurveyreviewstheenvironmentoftheproposedinstallationlocation,to
ensurethatthesectorsitesaresuitableforthewirelessnetwork.Theresultsofthephysical
sitesurveyshouldberecorded.
Inwhatfollows,ODUmaybeanHBSorafixedHSU:
 Toperformaphysicalsurvey:
1.Fromthecompassreadingstakeninthepreliminarysurvey,findtheazimuth(hori‐
zontalposition)thateachfixedHSUshouldfacetowardstheHBS.
2.Usingbinoculars,locateanyobstructionssuchastalltrees,highbuildings,hillsor
mountains.LookforotherRFtowersbetweenthetwosites.Markthelocationsof
theobstructionsonthemap.
3.DeterminethelocationfortheODUs(havingregardforexistingrooftopinstallations
andtowerspace).Theyshouldbeaboveanyobstructions,consideringtheFresnel
zone(seeChapter23).
4.IfyouneedtoinstallanytypeofODUonatower,makesurethatthetowerisfar
enoughfromoverheadelectric powerlines.
5.Determinealocationfortheindoorequipment;itshouldbeascloseaspossibleto
theODU.Atanexistingsite,thereisprobablyanequipmentroomwithcable‐routing
channels.
6.MeasureandrecordthepathlengthofthecablefromeachODUpositiontothe
indoorequipmentroom.
Note
Itisadvisabletogoonaclearday,soyoucanmoreeasilyseeany
obstructionsbetweenthetwosites.
Note
OutdoorCAT‐5e;Maximumcablelength:100mfor10/100BaseTand75m
for1000BaseT(GbEPoEs)