Netw 310

NETW310 Week 1 Lab Report

Your Name: Cherie Hayes

NETW310, Professor’s Name: John Tang

Current Date: October 28, 2013

Lab #1, Examine the Physical Layer

Lab Report

Each answer is worth seven points.

Use a red colored font for you answers.

Place the answers below the questions.

1. There are three patterns outlined on the screen which one of these is identifying the noise floor? The Pattern 1 shows the noise floor.

2. What is the approximate signal level of the noise floor? 2.4 GHz band noise floor is -95db, 5GHz band noise floor is -100db

3. Of the 11 channels being displayed which ones have the lowest noise floor? Channels 8-11 have the lowest noise floors, channel 11because the noise seems least on the right of the screen.

4. Inside the circle marked as Pattern 2 is this a signal from one of the three unlicensed fequency ranges? Yes it is one of the 3 unlicensed frequency ranges. According to the transcript accompanied with the video the red circle is a unlicensed frequency range.

5. If it is, what type of signal is this, 900 MHz, 2.4GHz, or 5 GHz? 2.4 GHz

6. Inside the circle marked as Pattern 3 is this a signal from one of the three unlicensed signal ranges? Yes it is an unlicensed signal range

7. If it is, what type of signal is this, 900 MHz, 2.4GHz, or 5 GHz? 900MHz

8. In the area marked as Pattern 4 some interference has appeared. What type of interference is this, such as all-channel, co-channel, adjacent-channel? Adjacent-Channel

9. On what channel has this interference appeared on? It appeared on channel 4 or 5

10. Is this interference weaker than, the same, or stronger than the signal that was there before it appeared? The interference seems to peak at a higher range between channels 4 and 5 and is stronger than channel 6, this is where the interference is taking place.