Contents
A PHY (5GHz Band)
Available Channels
There are 201 available channels in the 802.11a spec, 0-200. Generally, their frequency in MHz can be found through this equation:
Frequency = 5000 + 5 * (Channel Number)
(from 802.11a 17.3.8.3.2)
In the orginal driver, here are the available channels and some values required to set them:
Channel number |
Frequency |
RX IQ Comparison Value |
TX IQ Comparison Value |
pdiv |
sdiv |
34 |
5170 |
0xEFC3 |
0x4 |
0xC1 |
0x1B |
38 |
5190 |
0xEFC3 |
0x4 |
0xC1 |
0x1F |
42 |
5210 |
0xEFC3 |
0x4 |
0xC1 |
0x23 |
46 |
5230 |
0xEFC3 |
0x4 |
0xC1 |
0x27 |
36 |
5180 |
0xEFC3 |
0x4 |
0x0F |
0x02 |
40 |
5200 |
0xEFC3 |
0x4 |
0x0F |
0x03 |
44 |
5220 |
0xEFC3 |
0x4 |
0x0F |
0x04 |
48 |
5240 |
0xEFC3 |
0x4 |
0x0F |
0x05 |
52 |
5260 |
0xEFC3 |
0x4 |
0x0F |
0x06 |
56 |
5280 |
0xEFC3 |
0x4 |
0x0F |
0x07 |
60 |
5300 |
0xEFC3 |
0x4 |
0x0F |
0x08 |
64 |
5320 |
0xEFC3 |
0x4 |
0x0F |
0x09 |
100 |
5500 |
0xEFC2 |
0x3 |
0x10 |
0x03 |
104 |
5520 |
0xEFC2 |
0x3 |
0x10 |
0x04 |
108 |
5540 |
0xEFC2 |
0x3 |
0x10 |
0x05 |
112 |
5560 |
0xEFC2 |
0x3 |
0x10 |
0x06 |
116 |
5580 |
0xEFC2 |
0x3 |
0x10 |
0x07 |
120 |
5600 |
0xEFC2 |
0x3 |
0x10 |
0x08 |
124 |
5620 |
0xEFC2 |
0x3 |
0x10 |
0x09 |
128 |
5640 |
0xEFC2 |
0x3 |
0x10 |
0x0A |
132 |
5660 |
0xEFC2 |
0x4 |
0x10 |
0x0B |
136 |
5680 |
0xEFC2 |
0x4 |
0x10 |
0x0C |
140 |
5700 |
0xEFC2 |
0x4 |
0x10 |
0x0D |
149 |
5745 |
0xEFC2 |
0x4 |
0xC9 |
0x16 |
153 |
5765 |
0xF0C1 |
0x4 |
0xC9 |
0x1A |
157 |
5785 |
0xF0C1 |
0x4 |
0xC9 |
0x1E |
161 |
5805 |
0xF0C1 |
0x4 |
0xC9 |
0x22 |
165 |
5825 |
0xF0C1 |
0x4 |
0xC9 |
0x26 |
184 |
5920 |
0xF1C2 |
0x3 |
0x0E |
0x04 |
188 |
5940 |
0xF1C2 |
0x3 |
0x0E |
0x05 |
192 |
5960 |
0xF1C2 |
0x3 |
0x0E |
0x06 |
196 |
5980 |
0xF1C2 |
0x3 |
0x0E |
0x07 |
200 |
6000 |
0xF1C2 |
0x3 |
0x0E |
0x08 |
204 |
6020 |
0xF1C2 |
0x3 |
0x0E |
0x09 |
208 |
6040 |
0xF0C2 |
0x3 |
0x0E |
0x0A |
212 |
6060 |
0xF0C2 |
0x3 |
0x0E |
0x0B |
216 |
6080 |
0xF0C2 |
0x3 |
0x0E |
0x0C |
Set the Channel
B/G PHY (2.4GHz Band)
Available Channels
Channel number |
Frequency |
1 |
2412 MHz |
2 |
2417 MHz |
3 |
2422 MHz |
4 |
2427 MHz |
5 |
2432 MHz |
6 |
2437 MHz |
7 |
2442 MHz |
8 |
2447 MHz |
9 |
2452 MHz |
10 |
2457 MHz |
11 |
2462 MHz |
12 |
2467 MHz |
13 |
2472 MHz |
14 |
2484 MHz |
(from 802.11 15.4.6.2)