Lab 3 (Session 3): Calculating Free-Space Path Loss In this lab, you will use an online calculator to determine Free-Space Path Loss (FSPL) under defined parameters. 1. In a web browser, navigate to: https://www.everythingrf.com/rf-calculators/free-space- path-loss-calculator 2. Set the Distance (d) to equal 10 kilometers (km). 3. Set the Frequency (f) to equal 2412 MHz (the center frequency for Wi-Fi channel 1). 4. Set the Transmitting Antenna Gain (Gix) to equal 7 dB. 5. Set the Receiving Antenna Gain (G) to equal 7 dB. 6. Click Calculate to see the results. With the values provided, the result should equal 106.0876 dB. With such a significant loss, it may be necessary to improve the performance of the system; however, the needed value for FSPL is determined by a value not involved in this calculation: the radio output power. Change the values for steps 4 and 5 to 11 dB and notice the impact on FSPL upon recalculation and answer the following questions: In your write up explain the following: By how much did the calculated FSPL results change? What do these changes mean? If you desired to accomplish FSPL of 80 dB, what values might you use in steps 4 and 5? Include a screen capture with the changed results.
Lab 3 (Session 3): Calculating Free-Space Path Loss In this lab, you will use an online calculator to determine Free-Space Path Loss (FSPL) under defined parameters. 1. In a web browser, navigate to: https://www.everythingrf.com/rf-calculators/free-space- path-loss-calculator 2. Set the Distance (d) to equal 10 kilometers (km). 3. Set the Frequency (f) to equal 2412 MHz (the center frequency for Wi-Fi channel 1). 4. Set the Transmitting Antenna Gain (Gix) to equal 7 dB. 5. Set the Receiving Antenna Gain (G) to equal 7 dB. 6. Click Calculate to see the results. With the values provided, the result should equal 106.0876 dB. With such a significant loss, it may be necessary to improve the performance of the system; however, the needed value for FSPL is determined by a value not involved in this calculation: the radio output power. Change the values for steps 4 and 5 to 11 dB and notice the impact on FSPL upon recalculation and answer the following questions: In your write up explain the following: By how much did the calculated FSPL results change? What do these changes mean? If you desired to accomplish FSPL of 80 dB, what values might you use in steps 4 and 5? Include a screen capture with the changed results.
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Transcribed Image Text:Lab 3 (Session 3): Calculating Free-Space Path Loss
In this lab, you will use an online calculator to determine Free-Space Path Loss (FSPL) under
defined parameters.
1. In a web browser, navigate to: https://www.everythingrf.com/rf-calculators/free-space-
path-loss-calculator
2. Set the Distance (d) to equal 10 kilometers (km).
3. Set the Frequency (f) to equal 2412 MHz (the center frequency for Wi-Fi channel 1).
4. Set the Transmitting Antenna Gain (Gtx) to equal 7 dB.
5. Set the Receiving Antenna Gain (Gr) to equal 7 dB.
6. Click Calculate to see the results.
With the values provided, the result should equal 106.0876 dB. With such a significant loss, it may
be necessary to improve the performance of the system; however, the needed value for FSPL is
determined by a value not involved in this calculation: the radio output power.
Change the values for steps 4 and 5 to 11 dB and notice the impact on FSPL upon recalculation
and answer the following questions:
In your write up explain the following:
By how much did the calculated FSPL results change?
What do these changes mean?
If you desired to accomplish FSPL of 80 dB, what values might you use in steps 4 and 5?
Include a screen capture with the changed results.
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