Complete the table below by filling in the missing numbers. Part of this assignment also requires you to provide the formula used to reach the given answer.
For radio transmission in free space, signal power is reduced in proportion to the square of the distance from the source, whereas in wire transmission, the attenuation is a fixed number of dB per kilometer. The following table is used to show the dB reduction relative to some reference for free-space radio and uniform wire. Fill in the missing numbers to complete the table.
|
Distance (km) |
Radio (dB) |
Wire (dB) |
|
1 |
−6 |
−3 |
|
2 |
|
|
|
4 |
|
|
|
8 |
|
|
|
16 |
|
|
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