Procedure

Follow the instructions given below to perform the experiments:-

1.1 Starting Experiment 3 :-

• Step 1:-Click on the button START. A page appears with a dialogue box asking for your name. Enter your name and click OK.

1.2 Performing the Experiment 3A:-

• Step 2:-Choose the experiment you want to perform by clicking on the button EXPT 3A or EXPT 3B.

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• Step 3:-Place the mobile at different locations from the base station by adjusting the slider. You can also use the buttons + and - to change the position of the mobile.

• Step 4:-Record the values at different positions of the mobile by clicking on the button TAKE READING. Take 20 readings.

• Step 5:-You can observe the plot of power received vs angle on the RHS of the page.

• Step 6:-Now note the points where there is 3 dB fall of received power and calculate the beam-width by following the example given in procedure section.

• Step 7:-Enter your calculated value of beam-width in the box provided in the RHS of the page.

• Step 8:-Click on the button SUBMIT to verify whether your manually calculated value of beam-width matches the computed value of beam-width. The exact value of beam-width is returned.

1.3 Generating the report :-

• Step 9:-Click on the button REPORT to generate the report of your experiment.

• Step 11:-A dialogue box appears with the message that your report is successfully generated.

• Step 12:-Finally,you can view the pdf report of the experiment you have done.
• Step 13:-You can redo the entire experiment by clicking on the button RESET.

1.4 Performing the experiment 3B:-

• Step 14:-Follow the Step 2 as in experiment 3A.

• Step 15:-You can choose either random tilt or adjust the tilt value as given in the RHS of the page.

• Step 16:-Drag the mobile and place the mobile at different locations from the base stations by adjusting the slider. You can also use the buttons + and - to change the position of the mobile.

• Step 17:- Record the values at different positions of the mobile by clicking on the button TAKE READING. Take 20 readings.

• Step 18:-Now note the points where there is 3 dB fall of received power and calculate the beam-width by following the example given in procedure section. Observe the angle value at which received power is maximum.This is the tilt angle value.

• Step 19:-Enter your calculated value of beam-width and tilt in the box provided in the RHS of the page.

1.5 Generating the report :-

• Step 20:- Follow Steps 9 to 12 to generate the pdf report of the experiment you have done.

• Step 21:-You can redo the entire experiment by clicking on the button RESET.