Page 174 - GuideFWA

IN TER FER EN C E AN ALYSIS C ASE

Param eter Interfering TX Victim R X

System IS95 DECT
D evice Term inal Term inal

Frequency D ata

1850-1990 M H z Frequency Block C (low erpart) 1910 -1930 M H z
W orking Frequency (M H z)
N um berofguard channels 1908,750 1912,896
G uard Band betw een channeledges (KH z)
TX/R X frequency O ffset(KH z) 00

2657

4146,0

System D ata

TX Pow er(dBm ) 23

R X sensitivity (dBm ) **See N ote ** -86
10
Specific C /Ivalue forR eceiverVictim System (dB)

Antenna and FeederD ata

Antenna heigth (m ) 1,5 8,0
Antenna G ain (dBi) 0,0 10,0
Antenna H orizontalBeam w idth (º) om ni 60
Antenna VerticalBeam w idth (º) om ni 60
Antenna D ow ntilt(º) 0
2

FeederLosses (dB) 0,0 1,0

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 452,3
W hen only R X is on TX antenna 3dB-beam w idth 40,3
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 ###
2,00 100,0 200,0 300,0 400,0 500,0 600,0 700,0 1,0 452,3 ###
1,50 Required Distance (m) ###
1,00 0,25 654,0 ###
0,50 0,50 545,9 ###
0,00 0,75 489,7 ###
1,00 452,3 ###
0,0 1,25 424,6 ###
1,50 402,6 ###
1,75 384,4
2,00 369,0
2,25 355,5
2,50 343,5
2,75 332,8
3,00 323,0

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