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Transcript of project - VisualBee
Project Members- Project Guide- Longjam Raja Singh Dr. L.Lolit Kumar
Singh Abhishek Prasad Jotish Murmu
Report on Project ProgressField Strength Measurment in
MZU Campus
Contents
• Field strength meter description• Calculation of Uplink and Downlink from ARFCN• Frequency band for various service providers at
MZU Campus located at Tanhril• Field strength at different Block of MZU Campus• Comparison of the measured field strength• Future work: designing antenna• Reference
Vodafone , Aircell and Idea BTS at Tanhril
Airtel BTS at Tanhril
Field strength meter description
ARFCN Provided by the Service Providers
VODAFONE
SECTOR ARFCNSECTOR 1 854SECTOR 2 850SECTOR 3 852
AIRCEL
SECTOR ARFCNSECTOR 1 2SECTOR 2 4SECTOR 3 9
ARFCN Provided by the Service Providers
AIRTEL SECTOR ARFCNSECTOR 1 89SECTOR 2 24SECTOR 3 91
BSNL
SECTOR ARFCN
SECTOR 1 77
SECTOR 2 80
SECTOR 3 113
Calculation of Uplink and Downlink from ARFCN
The carrier frequency of an uplink channel can be calculated using the ARFCN(Absolute Radio Frequency Channel Number) according to the formula:
• fuplink = Start frequency + (ARFCN - Offset)*0.2 MHz
The lower bound of a downlink band conforms to the following formula:
• fdownlink = fuplink + Band distance
Frequency band for various service providers at MZU Campus located at Tanhril
Vodafone (GSM 1800)
Antenna sector ARFCN
Frequency(MHz)
Uplink Downlink
Sector 1 854 1778.6 1873.6
Sector 2 850 1777.8 1872.8
Sector 3 852 1778.2 1873.2
BSNL (P-GSM 900)
Antenna sector ARFCN
Frequency(MHz)
Uplink Downlink
Sector 1 77 905.4 950.4
Sector 2 80 906 951
Sector 3 113 912.6 957.6
AIRTEL (P-GSM 900)
Antenna sector ARFCN
Frequency(MHz)
Uplink Downlink
Sector 1 89 907.8 952.8
Sector 2 24 894.8 939.8
Sector 3 91 908.2 953.2
AIRCEL (P-GSM 900)
Antenna sector ARFCN
Frequency(MHz)
Uplink Downlink
Sector 1 2 890.4 935.4
Sector 2 4 890.8 935.8
Sector 3 9 891.8 936.8
SIGNAL STRENGTH MEASURED IN SUNNY DAYSService
Providers SectorsFrequency
(Mhz)
Power (measured in dBm) at
BSNL
DownlinkBTS MZU
Gate ADM Earth Science
Multipurpose Hall
Social Science
Central Library Commerce Life
SciencePhysical Science B.tech
Sector 1 950.4 -54.75 -92.2 -66.5 -88.86 -75.75 -95.33 -98.8 -70.69 -74.58 -99.77 -87.56Sector 2 951 -54.83 -94.8 -65.63 -99.1 -66.5 -86 -99.63 -88.68 -79.66 -99.79 -90.26Sector 3 957.6 -56 -75.55 -83.84 -90.15 -86.73 -98.28 -99.8 -70.46 -57.88 -100.22 -84.55Uplink
Sector 1 905.4 -99.62 -100.25 -100.7 -99.96 -101.14 -97.9 -102.17 -100.35 -100.74 -100.25 -100.2Sector 2 906 -100.39 -103.09 -100.5 -99.8 -100.41 -100.95 -99.74 -100.52 -100.41 -99.8 -100.2Sector 3 912.6 -99.7 -100.58 -100.3 -100.39 -100.15 -103.3 -102.53 -100.83 -100.63 -99.98 -100.8
Airtel
Downlink Sector 1 952.8 -54.98 -76.66 -99.8 -80.36 -85.69 -74.33 -99.71 -85.89 -81.26 -100.71 -89.04Sector 2 939.8 -70.23 -75.12 -100.6 -101.21 -95.91 -92.8 -101.08 -86.78 -78.5 -100.85 -100.2Sector 3 953.2 -55.42 -83.36 -99.7 -98.42 -93.12 -78.6 -100.47 -94.68 -79.8 -99.63 -95.61Uplink
Sector 1 907.8 -100.02 -100.34 -100.6 -100.07 -103.3 -99.88 -100.79 -100.85 -101.19 -101.03 -100.1Sector 2 894.8 -99.73 -100.04 -100.9 -99.68 -100.12 -100.11 -99.89 -100.7 -101.81 -100.73 -100.5Sector 3 908.2 -101.1 -100.79 -99.94 -101.12 -100.06 -99.99 -99.65 -100.09 -100 -100.42 -100.6
Vodafone
Downlink Sector 1 1873.6 -57.28 -75.82 -99.78 -84.76 -61.37 -87.37 -88.88 -84.04 -70.61 -99.87 -99.83Sector 2 1872.8 -54.96 -75 -101.6 -92 -77.3 -87.14 -101.4 -93.33 -80.18 -101.06 -100.6Sector 3 1873.2 -54.65 -88.77 -100.9 -99.65 -95.3 -88.7 -99.75 -94.26 -71.61 -100.35 -101.7Uplink
Sector 1 1778.6 -96.92 -101.23 -100.4 -99.74 -100.24 -100.22 -100.11 -100.22 -100.47 -102.84 -100.3Sector 2 1777.8 -90.72 -103 -99.99 -100.8 -100.84 -101.01 -101.75 -100.87 -100.15 -100.75 -100.8Sector 3 1778.2 -90.72 -99.68 -100.1 -99.74 -100.36 -99.64 -99.77 -100.67 -101.71 -100.56 -100.2
Aircel
Downlink Sector 1 935.4 -54.7 -92.6 -99.99 -84.94 -79.33 -82.78 -102.84 -91.4 -82.54 -100.08 -94.56Sector 2 935.8 -54.72 -84.33 -100.4 -97.83 -94.44 -87.71 -100.95 -96.14 -82.36 -102.2 -96.47Sector 3 936.8 -69.9 -70.53 -85.91 -94.66 -65.72 -67.45 -85.65 -76.18 -75.56 -95 -82.89Uplink
Sector 1 890.4 -95.8 -101.32 -99.89 -100.6 -100.98 -99.8 -100.25 -100.55 -100.44 -100.21 -100.6Sector 2 890.8 -96.05 -99.71 -101.8 -99.9 -100.6 -99.93 -100.65 -100.21 -100.19 -100.45 -100Sector 3 891.8 -93.56 -100.21 -99.64 -99.62 -101.42 -100.18 -100.15 -100.22 -100.87 -100.64 -100.2
Field strength at different Block of MZU Campus
Comparison of the measured field strength
Future work: Designing antenna• Antenna design using FEKO software.
• Technical Handbook for Radio Monitoring VHF/UHF: Edition 2011 by Roland Prosch, Aikaterini Daskalaki-Prosch.
Reference