MicrowaveradiorelaylinkZENITH80
21/52 1.2
3.4 LOCALFREQUENCYCOORDINATION
The following picture shows possible local frequency coordination in unlicensed/uncoordinated
frequencyband.Placementofantennasisshownonlyasoneofpossiblerecommendations.Ifthereismore
80GHzfrequencybandradio links in onelocation,polarization, orpossibly link channel numbersmustbe
selected to eliminate undesirable interference. The following
figure 12 shows possible polarization
combinations.
Figure12 Theexamplesofchannelandpolarizationusageincaseofmorelinksinonelocation
3.5 INSTALLATIONOFTHEANTENNASYSTEMS
Stationantennasystemsareattachedtoaverticalsteelpipethatisapartofagirdermaststructure,or
to other steel constructions firmly connected to the building, on which the station is being installed.
Diametersofsupportingpipesaresetbythetable15onthepage49.
The
antennaunitmaynotbeinstalled onbuildingequipmentthat havenot beenset ormodifiedfor
thispurpose.
Minimum1m
(shorterdistanceispossibleifproper
functionalityisverified)
ODUA
Txpolarization:horizontal
ODUB
Txpolarization:horizontal
ODUA
Txpolarization:vertical
ODUB
Txpolarization:vertical
Minimum1m
(shorterdistanceispossibleif
properfunctionalityisverified)
ODUA
Txpolarization:horizontal
ODUB
Txpolarization:horizontal
ODUA
Txpolarization:vertical
ODUB
Txpolarization:vertical