File1:

The 802.11 standard defines three different spread-spectrum
broadcasting methods: direct-sequence spread-spectrum (DSSS),
frequency-hopping spread spectrum (FHSS), and orthogonal
frequency-division multiplexing (OFDM). DSSS sends data out on
different frequencies at the same time, whereas FHSS sends data
on one frequency at a time, constantly shifting (or hopping) frequencies.

File2:

Every Wi-Fi network communicates on a channel, a portion of the spectrum
available. For the 2.4-GHz band, the 802.11 standard defines 14 channels
of 20-MHz each, but different countries limit exactly which channels may be
used. In the United States, for example, a WAP usings the 2.4-GHz band may
use only channels 1 through 11. These channels have some overlap, so two
nearby WAPs should not use close channels like 6 and 7. Most WAPs use
channels 1, 6, and 11 by default because these are the only non-overlapping
channels.

File3:

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| [1] [2]  _____________________________ [_][_][_] |
| [3] [4]  [_][_][_] [_][_][_][_] [_][_] [_][_][_] |
| [5] [6]  [][][][][][][][][][][][][][_] [1][2][3] |
| [7] [8]  [_][][][][][][][][][][][][][] [4][5][6] |
| [9][10]  [__][][][][][][][][][][][][_] [7][8][9] |
| [11][12] [___][][][][][][][][][][][__] [__][0][] |
|          [_][______________][_]                  |
|__________________________________________________|

No lines are longer than 80 characters, TYVM.
Other specified properties aren’t being scored automatically at this time so this is not necessarily good news…