Channel Spectral width and Power Limitations in Australia
|
Channel
|
Frequency (MHz)
|
Class Licence 2000 (amended) Item
|
Permitted
EIRP (mW)
|
| Channel Spectral Width (MHz) |
| 5 |
10 |
20 |
40 |
| 1
to
13
|
2400
to
2483.5
|
45A |
4000 |
| 34 |
5170 |
44 |
50 |
100 |
200 |
|
36
|
5180
|
| 38 |
5190 |
|
40
|
5200
|
|
42
|
5210
|
|
44
|
5220
|
|
48
|
5240
|
|
50
|
5250
|
44A
|
50 |
100 |
100
with DFS Disabled in Advanced Wireless Settings
or
200
with DFS Enabled in Advanced Wireless Settings
|
|
52
|
5260
|
|
56
|
5280
|
|
58
|
5290
|
|
60
|
5300
|
|
64
|
5320
|
| 100 |
5500 |
46 |
250 |
500 |
500
with DFS Disabled
or
1000
with DFS Enabled
|
| 104 |
5520 |
| 108 |
5540 |
| 112 |
5560 |
| 116 |
5580 |
| 120 |
5600 |
Not Permitted |
| 124 |
5620 |
| 128 |
5640 |
| 132 |
5660 |
46 |
250
|
500 |
500
with DFS Disabled
or
1000
with DFS Enabled |
| 136 |
5680 |
| 140 |
5700 |
|
149
|
5745
|
45B |
4000 |
|
152
|
5760
|
|
153
|
5765
|
|
157
|
5785
|
|
149
|
5745
|
|
152
|
5760
|
|
153
|
5765
|
|
157
|
5785
|
|
160
|
5800
|
|
161
|
5805
|
|
165
|
5825
|
Dynamic Frequency Selection (DFS) and Transmitter Power Control (TPC)
Some 5 GHz wireless channels co-exist with some Radar frequencies. Rather than ban WiFi for these frequencies, the ACMA has followed the same principle used in USA and the EU and allowed WiFi to operate on these same frequencies under the limitation that the WiFi gear must have:
- DFS: a mechanism to automatically detect Radar, and move off to a different channel, and
- TPC: a mechanism where the TX power can be reduced at least 6 dB below the maximum permitted.
Both Ubiquiti and Mikrotik devices (CPE boards) and radio cards have the ability to control the above settings which make them safe to use in Australia. If you have difficulties with finding free channel, you might consider to reduce channel with from standard 20Mhz to 10Mhz or even 5Mhz. On the other hand, if you need to use turbo more and you have free channels to use, you might be able to increasy chnnel width to 40Mhz.
Note: Please use the above table as a guide only. For more information about legal limits in Australia please use official government website here
|
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