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