Page 163 - GuideFWA
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IN TER FER EN C E AN ALYSIS C ASE
Param eter Interfering TX Victim R X
System PHS IS136
D evice B ase Station Term inal
Frequency D ata
1850-1990 M H z Frequency Block 1910 -1930 M H z A (upperpart)
W orking Frequency (M H z)
N um berofguard channels 1929,350 1930,080
G uard Band betw een channeledges (KH z)
TX/R X frequency O ffset(KH z) 00
565
730,0
System D ata
TX Pow er(dBm ) 22
R X sensitivity (dBm ) **See N ote ** -110
17
Specific C /Ivalue forR eceiverVictim System (dB)
Antenna and FeederD ata
Antenna heigth (m ) 15,0 1,5
Antenna G ain (dBi) 10,0 0,0
Antenna H orizontalBeam w idth (º) om ni om ni
Antenna VerticalBeam w idth (º) om ni
Antenna D ow ntilt(º) 8 0
-7
FeederLosses (dB) 1,0 0,0
O therC alculation Inputs
Im provem enton TX m ask specification (dB) 0,0
Allow ed R x D esensitization (dB) 1,0
N ote:This is the R eceiverSensitivity w ith N o R ayleigh Fading
R ESU LTS
R equired distances forD esentization equalto 1 dB : R eq.distance (m )
W hen both TX and R X are on R X and TX antenna 3dB-beam w idth 499,9
W hen only R X is on TX antenna 3dB-beam w idth notapplicable
W hen only TX is on R X antenna 3dB-beam w idth notapplicable
W hen both TX and R X are outofR X and TX antenna 3dB-beam w idth notapplicable
R equired distances w hen TX and R X antennae are on-beam ,fordifferentD esentization:
Desentization (dB)3,00 D esentization (dB ) R eq.D istance (m ) ###
2,50 ###
2,00 200,0 400,0 600,0 800,0 1,0 499,9 ###
1,50 ###
1,00 0,25 705,6 ###
0,50 0,50 589,0 ###
0,00 0,75 531,2 ###
1,00 499,9 ###
0,0 1,25 440,4 ###
1,50 396,0 ###
Required Distance (m) 1,75 361,1
2,00 332,6
2,25 338,5
2,50 316,1
2,75 296,7
3,00 306,5
Inter-American Telecommunication Commission 149