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7/21/2019 Design of Microwave
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Design of Microwave
Communication Link
Esguerra, Gieselle B.
Laguzar, Venice R.
Oco, orman !. "r.
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OBJECTIVES# To provide the best solution to be used
in attaining an efective microwavecommunication link or the expansion oGLOBE Compan !
# To evaluate the parameters that willmake the two network microwavecommunication link sstem compatible
to attain reliabilit and e"cienc !# To identi the set o e#uipment to beused to achieve a highl reliablemicrowave communication link in terms
o setting and eatures!
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OVERALL DESIGN
DESCRIPTION
A Double-Hop Full-Duplex AnalogMicrowave Communication Link
from Brgy. Don Boco! "arana#ue
to $an Critobal! $an "ablo
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Existing Design$ite A $ite B
# $arana#ue
# %&m tall
# Los Ba'os( Laguna
# )&m tall
$ite C
# *an Cristobal( *an $ablo# %&m tall
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Frequency Selection# The operating( low band and high bang
re#uencies are selected based on the +TC and,T- considerations!
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Frequency Plans
# The next slide shows the summar o the
re#uencies used or this link! The upper andlower re#uencies are given b the clientcompan as well as the channel capacit and theradio used!
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Frequency PlansFrequency Band 7.275 GHz
Frequency Range 7.128 7.289 GHz
Low Band Range &.128 7.275 Ghz
High Band Range 7.275 7.289 GHz
Channel Capacity STM-1 / 155 Mbps
Configuration 1+0
Channel Spacing 7Mhz
Duplex Spacing 80Mhz
Channel 23
Modulation 256QAM
Multiplexing TDM
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Site SelectionBrg! *an.ntonio(
*an $edro(Laguna
Brg!/aondon
( Los
Ba'os
01!1km
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PATH PROFILEPath Elevations
Site Latitude Longitude Elevation
Narra Rd., South
Peak, Brgy. SanAntonio, San Pedro,
Laguna
14.351667 N 121.03366 E 70.820
Maligay St.
Junction, Brgy.Mayondon, Los
Baos, Laguna
14.18434 N 121.23876 E 16.57
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SAN PEDRO-LOS BAOS LINK
Geographical Condition
PARAMETERS SITE A SITE B
Path Length 28.8km
Path Elevation 70.820 16.57
Azimuth 490.06528
Longitude 121.03366 E 121.23876 E
Latitude 14.351667 N 14.18434 N
PARAMETERS SITE A SITE B
Path Length 28.8km
Path Elevation 70.820 16.57
Azimuth 490.06528
Longitude 121.03366 E 121.23876 E
Latitude 14.351667 N 14.18434 N
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Path Profile and Fresnel Zone
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Reflection Points
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Reflection Points
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Set of Equipments# .ntenna( 2adio( and 3aveguide are made b
An%rew
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Attenuation and Losses
ParametersLow Band
(7.128GHz)
High Band
(7.289GHz)
Free Space Loss 138.6472036 dB 138.8412088 dB
Oxygen Absorption 0.187960987 dB 0.188623942 dB
Water Vapor Absorption 0.140413444 dB 0.147313681 dB
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Link BudgetParameters Low Band Frequency High Band Frequency
Radio Po 23.00 dBm 23.00 dBmConnector Loss 0.01 dB 0.01 dB
Waveguide Loss 1.47 dB 1.47 dB
Connector Loss 0.01 dB 0.01 dB
Antenna Gain 47.7 dBi 48.5 dBiFree Space Loss 138.5dB 138.84dB
Ao 0.19 dB 0.19 dB
AH2O 0.14 dB 0.15 dB
Antenna Misalignment 0.5 dB 0.5 dBAntenna Gain 47.7 dBi 48.5 dBi
Connector Loss 0.01 dB 0.01 dB
Waveguide Loss 3.33 dB 3.33 dB
Connector Loss 0.01 dB 0.01 dB
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Link Budget for Low Band Frequency
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Link Budget for High Band Frequency
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Fade Margins
FADE MARGIN LOW BAND FREQ HIGH BAND FREQ
Objective 50.27025 dB 50.36725 dB
Thermal 50.58830 dB 51.98673 dB
Dispersive 50 dB 50 dB
Flat 50.58830 dB 51.98673 dB
Composite 44.11917 dB 44.39748 dB
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System UnavailabilityReliability Calculation Low Band Freq High Band Freq
Non-Diversity 9.29384E-07 6.88735E-07
K-Q 5.24225E-08 5.05042E-08
K-Q with TerrainToughness
1.86478E-09 1.79654E-09
Vigants-Barnett 4.6345E-06 4.445E-06
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System ReliabilityReliability Calculation Low Band Frequency High Band Frequency
Non-Diversity 99.99990706% 99.99993113%
K-Q 99.9999476% 99.9999495%
K-Q with TerrainToughness
99.99999982% 99.99999983%
Vigants-Barnett 99.99953655% 99.9995555%
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System Reliability with
DiversityReliability Calculation Low Band Frequency High Band Frequency
Vigants-Barnett 99.99999558% 99.999999559%
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# E+4
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