Radwin 2000 C PLUS - Considerations for Changing Antenna Parameters

RADWIN2000CPlusUserManual Release3.5.70 E‐4
ConsiderationsforChangingAntennaParameters ChapterE
ConsiderationsforChangingAntenna
Parameters
Let:
maxAvailableTxPowerdenotethemaximumTxPowerpracticallyavailablefr omanODU.(It
appearsasTxPowerperRadio.)
maxRegEIRPdenotethemaximumEIRPavailablebyregulation.Itwi ll bedeterminedby
threefactors:
• perband/regulation
• perchannelbandwidth
• antennagain
maxRegTxPowerdenotethemaximumregulatoryTxPowerfortheequipment,alsohaving
regardtheabovethreepoints.
Then,thefollowingrelationshipmustbesatisfied:
...(*)
TheTxPower(perradio)indicatesthepowerofeachradioinsidetheODUandisusedforLink
BudgetCalculations.TheTxPower(System)showsthetotaltransmissionpoweroftheODU
andisusedtocalculatetheEIRPaccordingtoregulations.
Dual 64QAM 3/4 117 243
Dual 64QAM 5/6 130 270
Notes
• ToseetherelationshipbetweenTxPower(radio)andTxPower(sys‐
tem),notethatsothatifyoudouble
thepowerinmilliWatts(fortworadios)thendBmwillincreaseby
.
• TheMaxEIRPlevelwillbeautomaticallysetaccordingtothe
selectedbandandregulation.
• TheEIRPlevelisthesumoftheSystemTxPowerandtheAntenna
GainminustheCableLoss.
• TheMaxEIRPlevelwillbeautomaticallysetaccordingtothe
selectedbandandregulation.
• TheEIRPlevelisthesumoftheSystemTxPowerandtheAntenna
GainminustheCableLoss.
TableE‐2:RADWIN2000CPlusAirrates(Continued)
Antenna Modulation FEC
Air‐Rate[Mbps]
20MHz
CBW
40MHz
CBW
maxAvailableTxPower min maxRegEIRP
AntennaGain CableLoss maxRegTxPower+–
(
)

dBm 10 milliWatt
10
log=
10 2 3
10
log