List of WLAN channels
Wireless local area network channels using IEEE 802.11 protocols are sold mostly under the trademark WiFi.
The 802.11 workgroup has documented use in five distinct frequency ranges: 2.4 GHz, 3.6 GHz, 4.9 GHz, 5 GHz, and 5.9 GHz bands.[1] Each range is divided into a multitude of channels. Countries apply their own regulations to the allowable channels, allowed users and maximum power levels within these frequency ranges.
2.4 GHz (802.11b/g/n)
Most countries
United States
Fourteen channels are designated in the 2.4 GHz range, spaced 5 MHz apart from each other except for a 12 MHz space before channel 14.[2]
For 802.11g/n, it is not possible to guarantee orthogonal frequency-division multiplexing (OFDM) operation, thus affecting the number of possible non-overlapping channels depending on radio operation.[3]
Interference concerns
As the protocol requires 16.25 to 22 MHz of channel separation (as shown above), adjacent channels overlap and will interfere with each other. Leaving three or four channels clear between used channels is recommended to avoid interference.[4] The exact spacing required depends on the protocol and data rate selected as well as the electromagnetic environment where the equipment is used.
When two or more 802.11b transmitters are operated in the same airspace, their signals must be attenuated by -50 dBr and/or separated by 22 MHz to prevent interference.[5] This is because the DSSS algorithm transmits data logarithmically along a 20 MHz bandwidth. The remaining 2 MHz gap is used as a guard band to allow sufficient attenuation along the edge channels.
Note: The 40 MHz bands in the diagram above are labelled with their centre channel numbers, but the management interface of many Wi-Fi devices labels one of these bands with the centre channel of one of the 20 MHz bands it overlaps plus an Up or Down notation to specify the other half of the band. For example, channel 3 in the diagram is called channel 1+Upper or Channel 5+Lower, and Channel 11 in the diagram is called Channel 9+Upper or Channel 13+Lower.
Countries apply their own regulations to the allowable channels, allowed users and maximum power levels within these frequency ranges. Network operators should consult their local authorities as these regulations may be out of date as they are subject to change at any time. Most of the world will allow the first thirteen channels in the spectrum.
Channel | Frequency (MHz) |
North America [6] |
Japan[6] | Most of world [6][7][8][9][10][11][12] |
---|---|---|---|---|
1 | 2412 | Yes | Yes | Yes |
2 | 2417 | Yes | Yes | Yes |
3 | 2422 | Yes | Yes | Yes |
4 | 2427 | Yes | Yes | Yes |
5 | 2432 | Yes | Yes | Yes |
6 | 2437 | Yes | Yes | Yes |
7 | 2442 | Yes | Yes | Yes |
8 | 2447 | Yes | Yes | Yes |
9 | 2452 | Yes | Yes | Yes |
10 | 2457 | Yes | Yes | Yes |
11 | 2462 | Yes | Yes | Yes |
12 | 2467 | NoB | Yes | Yes |
13 | 2472 | NoB | Yes | Yes |
14 | 2484 | No | 11b onlyC | No |
^B In the U.S., 802.11 operation in the channels 12 and 13 is allowed under low powered conditions. The 2.4 GHz Part 15 band in the U.S. allows spread-spectrum operation as long as the 50 dB bandwidth of the signal is within the range of 2,400–2,483.5 MHz[13] which wholly encompasses both channels 12 and 13. A Federal Communications Commission (FCC) document clarifies that only channel 14 is forbidden and that low-power transmitters with low-gain antennas may operate legally in channels 12 and 13.[14] Channels 12 and 13, however, are not normally used in order to avoid any potential interference in the adjacent restricted frequency band, 2,483.5–2,500 MHz,[15] which is subject to strict emission limits set out in 47 CFR § 15.205.[16] Per recent FCC Order 16-181, "an authorized access point device can only operate in the 2483.5–2495 MHz band when it is operating under the control of a Globalstar Network Operating Center and that a client device can only operate in the 2483.5–2495 MHz band when it is operating under the control of an authorized access point" [17]
In Canada, 12 channels are available for use, 11 of which at full power and the other (channel 12) is transmit power limited. Few devices, however, have a method to enable a lower powered channel 12.
^C Channel 14 is valid only for DSSS and CCK modes (Clause 18 a.k.a. 802.11b) in Japan. OFDM (i.e., 802.11g) may not be used. (IEEE 802.11-2007 §19.4.2)
3.65 GHz (802.11y)
Except where noted, all information taken from Annex J of IEEE 802.11y-2008
This range is documented as only being allowed as a licensed band in the United States. Please see IEEE 802.11y for details.
Countries apply their own regulations to the allowable channels, allowed users and maximum power levels within these frequency ranges.
A 40 MHz band is available from 3655–3695 MHz. It may be divided into eight 5 MHz channels, four 10 MHz channels, or two 20 MHz channels, as follows:
Channel | Frequency (MHz) |
United States | ||
---|---|---|---|---|
5 MHz | 10 MHz | 20 MHz | ||
131 | 3657.5 | Yes | No | No |
132 | 3660.0 | No | Yes | |
3662.5 | Yes | No | ||
133 | 3665.0 | No | Yes | |
No | ||||
3667.5 | Yes | No | ||
134 | 3670.0 | No | Yes | |
3672.5 | Yes | No | ||
135 | 3675.0 | No | ||
No | No | |||
3677.5 | Yes | |||
136 | 3680.0 | No | Yes | |
3682.5 | Yes | No | ||
137 | 3685.0 | No | Yes | |
No | ||||
3687.5 | Yes | No | ||
138 | 3690.0 | No | Yes | |
3692.5 | Yes | No | ||
4.9 GHz (802.11j) public safety WLAN
50 MHz of spectrum from 4940 MHz to 4990 MHz (WLAN channels 20–26) are in use by public safety entities in the United States. Within this spectrum space, there are two non-overlapping channels allocated, both with a width of 20 MHz. The most commonly used channels are 22 and 26.
5 GHz (802.11a/h/j/n/ac)
Countries apply their own regulations to the allowable channels, allowed users and maximum power levels within these frequency ranges. Network operators should consult their local authorities as these regulations may be out of date as they are subject to change at any time.
European standard EN 301 893 covers 5.15–5.725 GHz operation, and v1.8.1 is in force.[19]
In 2007, the FCC (United States) began requiring that devices operating on 5.250–5.350 GHz and 5.470–5.725 GHz must employ dynamic frequency selection (DFS) and transmit power control (TPC) capabilities. This is to avoid interference with weather-radar and military applications.[20] In 2010, the FCC further clarified the use of channels in the 5.470–5.725 GHz band to avoid interference with TDWR weather radar systems.[21] In FCC parlance, these restrictions are now referred to collectively as the "Old Rules". On 10 June 2015, the FCC approved a "new" ruleset for 5 GHz device operation (called the "New Rules"), which adds 160 and 80 MHz channel identifiers, and re-enables previously prohibited DFS channels, in Publication Number 905462.[22] This FCC publication eliminates the ability for manufacturers to have devices approved or modified under the Old Rules in phases; the New Rules apply in all circumstances as of 2 June 2016.[22]
Germany requires DFS and TPC capabilities on 5.250–5.350 GHz and 5.470–5.725 GHz as well; in addition, the frequency range 5.150–5.350 GHz is allowed only for indoor use, leaving only 5.470–5.725 GHz for outdoor and indoor use.[23]
Since this is the German implementation of EU Rule 2005/513/EC, similar regulations must be expected throughout the European Union.[24][25]
Austria adopted Decision 2005/513/EC directly into national law.[26] The same restrictions as in Germany apply, only 5.470–5.725 GHz is allowed to be used outdoor and indoor.
South Africa simply copied the European regulations.[27]
Japan's use of 10 and 20 MHz-wide 5 GHz wireless channels is codified by Association of Radio Industries and Businesses (ARIB) document STD-T71, Broadband Mobile Access Communication System (CSMA).[28] Additional rule specifications relating to 40, 80, and 160 MHz channel allocation has been taken on by Japan's Ministry of Internal Affairs and Communications (MIC).[29]
In Brazil, the TPC use in 5.150–5.725 GHz band is optional. DFS is required only in the 5.470–5.725 GHz band.[30]
As of 2015, some of the Australian channels require DFS to be utilised (a significant change from the 2000 regulations, which allowed lower power operation without DFS).[10] As per AS/NZS 4268 B1 and B2, transmitters designed to operate in any part of 5250–5350 GHz and 5470–5725 GHz bands shall implement DFS in accordance with sections 4.7 and 5.3.8 and Annex D of ETSI EN 301 893 or alternatively in accordance with FCC paragraph 15.407(h)(2). Also as per AS/NZS 4268 B3 and B4, transmitters designed to operate in any part of 5250–5350 MHz and 5470–5725 MHz bands shall implement TPC in accordance with sections 4.4 and 5.3.4 of ETSI EN 301 893 or alternatively in accordance with FCC paragraph 15.407(h)(1).
New Zealand regulation differs from Australian.[31]
Singapore requires DFS and TPC capabilities on 5.250–5.350 GHz above 100 mW (e.i.r.p.) and below or equal to 200 mW (e.i.r.p.), and requires DFS capability on 5.250–5.350 GHz below or equal to 100 mW (e.i.r.p.). In addition, 5.150–5.350 GHz is allowed only for indoor use.[32]
Channel | Center Frequency (MHz) |
Frequency Range (MHz) |
Bandwidth (MHz) |
United States FCC U-NII Band(s) |
United States [33][34] |
Canada [35] |
Europe [36][37][38][39][40] |
Switzerland [41][42][43] |
Russia [44] |
Japan[45] | India | Singapore [46][32] |
China [47] |
Israel [9] |
Korea [48] |
Turkey [49] |
Australia [10] |
South Africa [27] |
Brazil [11] |
Taiwan [50] |
New Zealand [31][51] |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
7 | 5035 | 5030–5040 | 10 | N/A | No | No | No | No | No | No | Unknown | No | No | No | No | No | No | No | No | No | No |
8 | 5040 | 5030–5050 | 20 | N/A | No | No | No | No | No | No | Unknown | No | No | No | No | No | No | No | No | No | No |
9 | 5045 | 5040–5050 | 10 | N/A | No | No | No | No | No | No | Unknown | No | No | No | No | No | No | No | No | No | No |
11 | 5055 | 5050–5060 | 10 | N/A | No | No | No | No | No | No | Unknown | No | No | No | No | No | No | No | No | No | No |
12 | 5060 | 5050–5070 | 20 | N/A | No | No | No | No | No | No | Unknown | No | No | No | No | No | No | No | No | No | No |
16 | 5080 | 5070–5090 | 20 | N/A | No | No | No | No | No | No | Unknown | No | No | No | No | No | No | No | No | No | No |
34 | 5170 | Unknown | Unknown | N/A | No | No | No | No | Yes | No | Indoors | Yes | No | Indoors | Yes | Indoors | Indoors | Indoors | Indoors | Yes | Indoors |
36 | 5180 | 5170–5190 | 20 | U-NII-1 | Yes | Indoors | Indoors | Indoors | Yes | Indoors | Indoors | Yes | Yes | Indoors | Yes | Indoors | Indoors | Indoors | Indoors | Yes | Indoors |
38 | 5190 | 5170–5210 | 40 | U-NII-1 | Yes | Indoors | No | No | Yes | No | Indoors | Yes | Yes | Indoors | Yes | Indoors | Indoors | Indoors | Indoors | Yes | Indoors |
40 | 5200 | 5190–5210 | 20 | U-NII-1 | Yes | Indoors | Indoors | Indoors | Yes | Indoors | Indoors | Yes | Yes | Indoors | Yes | Indoors | Indoors | Indoors | Indoors | Yes | Indoors |
42 | 5210 | 5170–5250 | 80 | U-NII-1 | Yes | Indoors | No | No | Yes | No | Indoors | Indoors/DFS/TPC | No | No | No | Indoors | Indoors | No | No | Yes | Indoors |
44 | 5220 | 5210–5230 | 20 | U-NII-1 | Yes | Indoors | Indoors | Indoors | Yes | Indoors | Indoors | Yes | Yes | Indoors | Yes | Indoors | Indoors | Indoors | Indoors | Yes | Indoors |
46 | 5230 | 5210–5250 | 40 | U-NII-1 | Yes | Indoors | No | No | Yes | No | Indoors | Yes | Yes | Indoors | Yes | Indoors | Indoors | Indoors | Indoors | Yes | Indoors |
48 | 5240 | 5230–5250 | 20 | U-NII-1 | Yes | Indoors | Indoors | Indoors | Yes | Indoors | Indoors | Yes | Yes | Indoors | Yes | Indoors | Indoors | Indoors | Indoors | Yes | Indoors |
50 | 5250 | 5170–5330 | 160 | U-NII-1 and U-NII-2A | DFS | Indoors/DFS | No | No | Yes | No | Indoors | No | No | No | No | No | Indoors/DFS/TPC (otherwise limited to 100 mW instead of 200 mW) | No | No | DFS | Indoors |
52 | 5260 | 5250–5270 | 20 | U-NII-2A | DFS | DFS | Indoors/DFS/TPC | Indoors/DFS/TPC (otherwise limited to 100 mW instead of 200 mW) | Yes | Indoors/DFS/TPC | Indoors | Indoors/DFS/TPC | DFS/TPC | Indoors/DFS/TPC (otherwise limited to 100mW instead of 200 mW) | Yes | Indoors | Indoors/DFS/TPC (otherwise limited to 100 mW instead of 200mW) | Indoors | Indoors | DFS | DFS/TPC |
54 | 5270 | 5250–5290 | 40 | U-NII-2A | DFS | DFS | No | No | Yes | No | Indoors | Indoors/DFS/TPC | DFS/TPC | Indoors | No | Indoors | Indoors/DFS/TPC (otherwise limited to 100mW instead of 200mW) | Indoors | Indoors | DFS | DFS/TPC |
56 | 5280 | 5270–5290 | 20 | U-NII-2A | DFS | DFS | Indoors/DFS/TPC | Indoors/DFS/TPC (otherwise limited to 100 mW instead of 200 mW) | Yes | Indoors/DFS/TPC | Indoors | Indoors/DFS/TPC | DFS/TPC | Indoors/DFS/TPC (otherwise limited to 100 mW instead of 200 mW) | Yes | Indoors | Indoors/DFS/TPC (otherwise limited to 100 mW instead of 200mW) | Indoors | Indoors | DFS | DFS/TPC |
58 | 5290 | 5250–5330 | 80 | U-NII-2A | DFS | DFS | No | No | Yes | No | Indoors | Indoors/DFS/TPC | No | No | No | Indoors | Indoors/DFS/TPC (otherwise limited to 100 mW instead of 200 mW) | No | No | DFS | Yes |
60 | 5300 | 5290–5310 | 20 | U-NII-2A | DFS | DFS | Indoors/DFS/TPC | Indoors/DFS/TPC (otherwise limited to 100 mW instead of 200 mW) | Yes | Indoors/DFS/TPC | Indoors | Indoors/DFS/TPC | DFS/TPC | Indoors/DFS/TPC (otherwise limited to 100 mW instead of 200 mW) | Yes | Indoors | Indoors/DFS/TPC (otherwise limited to 100 mW instead of 200 mW) | Indoors | Indoors | DFS | DFS/TPC |
62 | 5310 | 5290–5330 | 40 | U-NII-2A | DFS | DFS | No | No | Yes | No | Indoors | Indoors/DFS/TPC | DFS/TPC | Indoors | No | Indoors | Indoors/DFS/TPC (otherwise limited to 100mW instead of 200mW) | Indoors | Indoors | DFS | DFS/TPC |
64 | 5320 | 5310–5330 | 20 | U-NII-2A | DFS | DFS | Indoors/DFS/TPC | Indoors/DFS/TPC (otherwise limited to 100 mW instead of 200 mW) | Yes | Indoors/DFS/TPC | Indoors | Indoors/DFS/TPC | DFS/TPC | Indoors/DFS/TPC (otherwise limited to 100 mW instead of 200 mW) | Yes | Indoors | Indoors/DFS/TPC (otherwise limited to 100 mW instead of 200mW) | Indoors | Indoors | DFS | DFS/TPC |
100 | 5500 | 5490–5510 | 20 | U-NII-2C | DFS | DFS | DFS/TPC | DFS/TPC (otherwise limited to 500 mW instead of 1 W) | Yes | DFS/TPC | Unknown | DFS/TPC | No | No | Yes | DFS/TPC | DFS/TPC (otherwise limited to 500 mW instead of 1 W) | Yes | DFS | DFS | DFS/TPC |
102 | 5510 | 5490–5530 | 40 | U-NII-2C | DFS | DFS | No | No | Yes | No | Unknown | DFS/TPC | No | No | No | DFS/TPC | DFS/TPC (otherwise limited to 500 mW instead of 1 W) | Yes | DFS | DFS | DFS/TPC |
104 | 5520 | 5510–5530 | 20 | U-NII-2C | DFS | DFS | DFS/TPC | DFS/TPC (otherwise limited to 500 mW instead of 1 W) | Yes | DFS/TPC | Unknown | DFS/TPC | No | No | Yes | DFS/TPC | DFS/TPC (otherwise limited to 500 mW instead of 1 W) | Yes | DFS | DFS | DFS/TPC |
106 | 5530 | 5490–5570 | 80 | U-NII-2C | DFS | DFS | No | No | Yes | No | Unknown | DFS/TPC | No | No | No | No | DFS/TPC (otherwise limited to 500 mW instead of 1 W) | No | No | DFS | DFS/TPC |
108 | 5540 | 5530–5550 | 20 | U-NII-2C | DFS | DFS | DFS/TPC | DFS/TPC (otherwise limited to 500 mW instead of 1 W) | Yes | DFS/TPC | Unknown | DFS/TPC | No | No | Yes | DFS/TPC | DFS/TPC (otherwise limited to 500 mW instead of 1 W) | Yes | DFS | DFS | DFS/TPC |
110 | 5550 | 5530–5570 | 40 | U-NII-2C | DFS | DFS | No | No | Yes | No | Unknown | DFS/TPC | No | No | No | DFS/TPC | DFS/TPC (otherwise limited to 500 mW instead of 1 W) | Yes | DFS | DFS | DFS/TPC |
112 | 5560 | 5550–5570 | 20 | U-NII-2C | DFS | DFS | DFS/TPC | DFS/TPC (otherwise limited to 500 mW instead of 1 W) | Yes | DFS/TPC | Unknown | DFS/TPC | No | No | Yes | DFS/TPC | DFS/TPC (otherwise limited to 500 mW instead of 1 W) | Yes | DFS | DFS | DFS/TPC |
114 | 5570 | 5490–5650 | 160 | U-NII-2C | DFS | No | No | No | Yes | No | Unknown | DFS/TPC | No | No | No | No | No | No | No | DFS | DFS/TPC |
116 | 5580 | 5570–5590 | 20 | U-NII-2C | DFS | DFS | DFS/TPC | DFS/TPC (otherwise limited to 500 mW instead of 1 W) | Yes | DFS/TPC | Unknown | DFS/TPC | No | No | Yes | DFS/TPC | DFS/TPC (otherwise limited to 500 mW instead of 1 W) | Yes | DFS | DFS | DFS/TPC |
118 | 5590 | 5570–5610 | 40 | U-NII-2C | DFS | No | No | No | Yes | No | Unknown | DFS/TPC | No | No | No | DFS/TPC | No | Yes | DFS | DFS | DFS/TPC |
120 | 5600 | 5590–5610 | 20 | U-NII-2C | DFS | No | DFS/TPC | DFS/TPC (otherwise limited to 500 mW instead of 1 W) | Yes | DFS/TPC | Unknown | DFS/TPC | No | No | Yes | DFS/TPC | No | Yes | DFS | DFS | DFS/TPC |
122 | 5610 | 5570–5650 | 80 | U-NII-2C | DFS | No | No | No | Yes | No | Unknown | DFS/TPC | No | No | No | No | No | No | No | DFS | DFS/TPC |
124 | 5620 | 5610–5630 | 20 | U-NII-2C | DFS | No | DFS/TPC | DFS/TPC (otherwise limited to 500 mW instead of 1 W) | Yes | DFS/TPC | Unknown | DFS/TPC | No | No | Yes | DFS/TPC | No | Yes | DFS | DFS | DFS/TPC |
126 | 5630 | 5610–5650 | 40 | U-NII-2C | DFS | No | No | No | Yes | No | Unknown | DFS/TPC | No | No | No | DFS/TPC | No | Yes | DFS | DFS | DFS/TPC |
128 | 5640 | 5630–5650 | 20 | U-NII-2C | DFS | No | DFS/TPC | DFS/TPC (otherwise limited to 500 mW instead of 1 W) | Yes | DFS/TPC | Unknown | DFS/TPC | No | No | Yes | DFS/TPC | No | Yes | DFS | DFS | DFS/TPC |
132 | 5660 | 5650–5670 | 20 | U-NII-2C | DFS | DFS | DFS/TPC | DFS/TPC (otherwise limited to 500 mW instead of 1 W) | Yes | DFS/TPC | Unknown | DFS/TPC | No | No | No | DFS/TPC | DFS/TPC (otherwise limited to 500 mW instead of 1 W) | Yes | DFS | DFS | DFS/TPC |
134 | 5670 | 5650–5690 | 40 | U-NII-2C | DFS | DFS | No | No | Yes | No | Unknown | DFS/TPC | No | No | No | DFS/TPC | DFS/TPC (otherwise limited to 500 mW instead of 1 W) | Yes | DFS | DFS | DFS/TPC |
136 | 5680 | 5670–5690 | 20 | U-NII-2C | DFS | DFS | DFS/TPC | DFS/TPC (otherwise limited to 500 mW instead of 1 W) | Yes | DFS/TPC | Unknown | DFS/TPC | No | No | No | DFS/TPC | DFS/TPC (otherwise limited to 500mW instead of 1W) | Yes | DFS | DFS | DFS/TPC |
138 | 5690 | 5650–5730 | 80 | U-NII-2C and U-NII-3 | DFS | DFS | No | No | Yes | No | Unknown | DFS/TPC | No | No | No | No | DFS/TPC (otherwise limited to 500mW instead of 1W) | No | No | No | DFS/TPC |
140 | 5700 | 5690–5710 | 20 | U-NII-2C | DFS | DFS | DFS/TPC | DFS/TPC (otherwise limited to 500 mW instead of 1W) | Yes | DFS/TPC | Unknown | DFS/TPC | No | No | No | DFS/TPC | DFS/TPC (otherwise limited to 500 mW instead of 1 W) | Yes | DFS | DFS | DFS/TPC |
142 | 5710 | 5690–5730 | 40 | U-NII-2C and U-NII-3 | DFS | DFS | No | No | Yes | No | Unknown | DFS/TPC | No | No | No | No | DFS/TPC (otherwise limited to 500mW instead of 1W) | No | No | No | DFS/TPC |
144 | 5720 | 5710–5730 | 20 | U-NII-2C and U-NII-3 | DFS | DFS | No | No | Yes | No | Indoors | DFS/TPC | No | No | No | No | DFS/TPC (otherwise limited to 500mW instead of 1W) | No | No | No | DFS/TPC |
149 | 5745 | 5735–5755 | 20 | U-NII-3 | Yes | Yes | SRD (25 mW)[52] | SRD (25 mW)[52] | Yes | No | Indoors | Yes | Yes | No | Yes | No | Yes | No | Yes | Yes | Yes |
151 | 5755 | 5735–5775 | 40 | U-NII-3 | Yes | Yes | SRD (25 mW)[52] | SRD (25 mW)[52] | Yes | No | Indoors | Yes | Yes | No | Yes | No | Yes | No | Yes | Yes | Yes |
153 | 5765 | 5755–5775 | 20 | U-NII-3 | Yes | Yes | SRD (25 mW)[52] | SRD (25 mW)[52] | Yes | No | Indoors | Yes | Yes | No | Yes | No | Yes | No | Yes | Yes | Yes |
155 | 5775 | 5735–5815 | 80 | U-NII-3 | Yes | Yes | SRD (25 mW)[52] | SRD (25 mW)[52] | Yes | No | Indoors | Yes | No | No | No | No | Yes | No | No | Yes | Yes |
157 | 5785 | 5775–5795 | 20 | U-NII-3 | Yes | Yes | SRD (25 mW)[52] | SRD (25 mW)[52] | Yes | No | Indoors | Yes | Yes | No | Yes | No | Yes | No | Yes | Yes | Yes |
159 | 5795 | 5775–5815 | 40 | U-NII-3 | Yes | Yes | SRD (25 mW)[52] | SRD (25 mW)[52] | Yes | No | Indoors | Yes | Yes | No | Yes | No | Yes | No | Yes | Yes | Yes |
161 | 5805 | 5795–5815 | 20 | U-NII-3 | Yes | Yes | SRD (25 mW)[52] | SRD (25 mW)[52] | Yes | No | Indoors | Yes | Yes | No | Yes | No | Yes | No | Yes | Yes | Yes |
165 | 5825 | 5815–5835 | 20 | U-NII-3 | Yes | Yes | SRD (25 mW)[52] | SRD (25 mW)[52] | Yes | No | Indoors | Yes | Yes | No | Yes | No | Yes | No | Yes | Yes | Yes |
169 | 5845 | 5835–5855 | 20 | N/A | No | No | No | No | No | No | Yes | No | No | No | No | No | No | No | No | No | No |
173 | 5865 | 5855–5875 | 20 | N/A | No | No | No | No | No | No | Yes | No | No | No | No | No | No | No | No | No | No |
183 | 4915 | 4910–4920 | 10 | N/A | No | No | No | No | No | No | Unknown | No | No | No | No | No | No | No | No | No | No |
184 | 4920 | 4910–4930 | 20 | N/A | No | No | No | No | No | No | Unknown | No | No | No | No | No | No | No | No | No | No |
185 | 4925 | 4920–4930 | 10 | N/A | No | No | No | No | No | No | Unknown | No | No | No | No | No | No | No | No | No | No |
187 | 4935 | 4930–4940 | 10 | N/A | No | No | No | No | No | No | Unknown | No | No | No | No | No | No | No | No | No | No |
188 | 4940 | 4930–4950 | 20 | N/A | No | No | No | No | No | No | Unknown | No | No | No | No | No | No | No | No | No | No |
189 | 4945 | 4940–4950 | 10 | N/A | No | No | No | No | No | No | Unknown | No | No | No | No | No | No | No | No | No | No |
192 | 4960 | 4950–4970 | 20 | N/A | No | No | No | No | No | No | Unknown | No | No | No | No | No | No | No | No | No | No |
196 | 4980 | 4970–4990 | 20 | N/A | No | No | No | No | No | No | Unknown | No | No | No | No | No | No | No | No | No | No |
Channel | Center Frequency (MHz) |
Frequency Range (MHz) |
Bandwidth (MHz) |
United States FCC U-NII Band(s) |
United States | Canada | Europe | Switzerland | Russia | Japan | India | Singapore | China | Israel | Korea | Turkey | Australia | South Africa | Brazil | Taiwan | New Zealand |
China MIIT expanded allowed channels as of 31 December 2012 to add UNII-1, 5150 ~ 5250 GHz, UNII-2, 5250 ~ 5350 GHz (DFS/TPC), similar to European standards EN 301.893 V1.7.1.[53]
5.9 GHz (802.11p)
The 802.11p amendment, also known as Wireless Access in Vehicular Environments (WAVE), published on 15 July 2010, specifies WLAN in the licensed Intelligent Transportation Systems (ITS) band of 5.9 GHz (5.850–5.925 GHz).[54] The 802.11p standard is intended for use in vehicular communication systems.
60 GHz (802.11ad)
The 802.11ad, also known as WiGig. This operates in 60 GHz ISM band.
900 MHz (802.11ah)
802.11ah operates in sub-gigahertz unlicensed bands.
See also
- Electromagnetic interference at 2.4 GHz
- High Speed Multimedia Radio
- IEEE 802.11#Layer 2 .E2.80.93 Datagrams
- Wireless LAN
References
- ↑ "IEEE 802.11-2007: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications". IEEE. 8 March 2007.
- ↑ "IEEE 802.11-2012: 16.4.6 - PMD Operating Specifications, General". IEEE. 15 May 2013.
- ↑ "Channel Deployment Issues for 2.4-GHz 802.11 WLANs". www.cisco.com. Archived from the original on 12 July 2007. Retrieved 2 August 2017.
- ↑ "Choosing the right Wi-Fi channel can minimize wireless interference". compnetworking.about.com. Retrieved 5 June 2016.
- ↑ "IEEE 802.11-2012: 16.4.7.5 - Transmit spectrum mask". IEEE. 15 May 2013.
- 1 2 3 IEEE 802.11-2007 — Table 18-9
- ↑ France: "WLAN regulatory update". 3 February 2003.
- ↑ "Telecomunicaciones y Tecnologías de la Información - Cuadro Nacional de Atribución de Frecuencias (CNAF)". Web.archive.org. 6 February 2008. Archived from the original on 6 February 2008. Retrieved 2 August 2017.
- 1 2 Israel: כללי השימוש בתדרים בתחומים 2.4 ו- 5 גה"ץ (PDF) (in Hebrew).
- 1 2 3 "Radiocommunications (Low Interference Potential Devices) Class Licence 2015". www.legislation.gov.au. Retrieved 2 August 2017.
- 1 2 "Brazil: Resolução nº 506, de 01/07/2008, publicado no Diário Oficial de 07/07/2008, atualizado em 24/11/2010 (in Brazilian Portuguese)" (PDF). p. 33.
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- ↑ "dead link". Retrieved 18 February 2014.
- ↑ "TCB workshop on unlicensed devices" (PDF). October 2005. p. 58. Archived from the original (PDF) on 5 November 2008.
- ↑ "NTIA Comments ET Docket No 03-108 02-15-2005". www.ntia.doc.gov. Retrieved 5 June 2016.
- ↑ "47 CFR Ch. I (10–1–04 Edition)" (PDF). Edocket.access.gpo.gov. Retrieved 2 August 2017.
- ↑ "FCC 16-181" (PDF). apps.fcc.gov. 23 December 2016. Retrieved 22 February 2017.
- ↑ IEEE 802.11-2007 Annex J modified by amendments k, y and n.
- ↑ "EN 300 328 V1.8.1 to be mandatory from 1st January 2015". Retrieved 10 March 2015.
- ↑ "15.407 - General technical requirements". louise.hallikainen.org. Archived from the original on 23 March 2012. Retrieved 2 August 2017.
- ↑ "Publication Number: 443999 Rule Parts: 15E". Federal Communication Commission. 14 August 2014.
Devices must be professionally installed when operating in the 5470 – 5725 GHz band
- 1 2 FCC Office of Engineering and Technology. "905462 15.401 UNII,U-NII, DFS Test Procedures". apps.fcc.gov. Retrieved 8 August 2015.
- ↑ "Bundesnetzagentur Vfg 7/2010 / See footnote 4 and 5 (German only)" (PDF). Retrieved 2 August 2017.
- ↑ "EUR-Lex - 32005D0513 - EN - EUR-Lex". eur-lex.europa.eu. Retrieved 5 June 2016.
- ↑ "EUR-Lex - 32007D0090 - EN - EUR-Lex". eur-lex.europa.eu. Retrieved 5 June 2016.
- ↑ Information of the Austrian Telecommunications Authority - Wireless Local Area Networks (WAS, WLAN, RLAN)
- 1 2 "ELECTRONIC COMMUNICATIONS ACT, 2005 (ACT NO 36 OF 2005): REGULATIONS" (PDF). www.ellipsis.co.za. Retrieved 2 August 2017.
- ↑ "List of ARIB Standards for Radio". www.arib.or.jp. Retrieved 19 January 2016.
- ↑ Hou, Chun "johnson" (3 April 2013). "Wi-Fi Amateur: IEEE Std 802.11ac Deployment in Japan". wifiamateur.blogspot.com. Retrieved 19 January 2016.
- ↑ "Brazil: Resolução nº 506, de 01/07/2008, publicado no Diário Oficial de 07/07/2008 (in Brazilian Portuguese)".
- 1 2 https://www.rsm.govt.nz/cms/licensees/types-of-licence/general-user-licences/short-range-devices
- 1 2 "IDA Technical Specification Short Range Devices - Issue 1 Rev 7, April 2013 / See Page 8 & 9" (PDF). Archived from the original (PDF) on 24 February 2015. Retrieved 2 August 2017.
- ↑ FCC Office of Engineering and Technology. "905462 D06 802.11 Channel Plans New Rules v01". apps.fcc.gov. Retrieved 8 August 2015.
- ↑ FCC Office of Engineering and Technology. "443999 D01 Approval of DFS UNII Devices v01r04". apps.fcc.gov. Retrieved 14 August 2015.
- ↑ "RSS-247 — Digital Transmission Systems (DTSs), Frequency Hopping Systems (FHSs) and Licence-Exempt Local Area Network (LE-LAN) Devices". Industry Canada. Retrieved 10 August 2015.
- ↑ "COMMISSION DECISION of 11 July 2005 on the harmonised use of radio spectrum in the 5 GHz frequency band for the implementation of wireless access systems including radio local area networks (WAS/RLANs)". eur-lex.europa.eu. Retrieved 27 January 2016.
- ↑ "COMMISSION DECISION of 12 February 2007 amending Decision 2005/513/EC on the harmonised use of radio spectrum in the 5 GHz frequency band for the implementation of Wireless Access Systems including Radio Local Area Networks (WAS/RLANs)". eur-lex.europa.eu. Retrieved 27 January 2016.
- ↑ "ERC Recommendation 70-03 Relating to the use of Short Range Devices (SRD)" (PDF). www.erodocdb.dk. Retrieved 27 January 2016.
- ↑ "ELECTRONIC COMMUNICATIONS COMMITTEE ECC Decision of 9 July 2004 on the harmonised use of the 5 GHz frequency bands for the implementation of Wireless Access Systems including Radio Local Area Networks (WAS/RLANs)" (PDF). www.erodocdb.dk. Retrieved 27 January 2016.
- ↑ "Broadband Radio Access Networks (BRAN); 5 GHz high performance RLAN; Harmonized EN covering the essential requirements of article 3.2 of the R&TTE Directive" (PDF). www.etsi.org. Retrieved 27 January 2016.
- ↑ "WLAN / RLAN". www.bakom.admin.ch. Retrieved 24 June 2017.
- ↑ "Technical interfaces regulations". Ofcomnet.ch. Retrieved 5 June 2016.
- ↑ "Technical interfaces regulations". www.ofcomnet.ch. Retrieved 5 June 2016.
- ↑ "Правила применения оборудования радиодоступа - Terms of use of radio access equipment (in Russian)". 22 April 2015.
- ↑ "新5GHz帯 [11n/11a] が変". Retrieved 25 August 2016.
- ↑ "IDA Singapore: Spectrum Management Handbook" (PDF). May 2011. p. 30. Archived from the original (PDF) on 10 March 2016. Retrieved 2 August 2017.
- ↑ Hou, Chun "johnson" (1 April 2013). "Wi-Fi Amateur: China Opened More Channels in 5 GHz & Embraced IEEE Std 802.11ac VHT80". wifiamateur.blogspot.com. Retrieved 5 June 2016.
- ↑
- ↑ "Bilgi Teknolojileri ve İletişim Kurumu - Anasayfa" (PDF). www.tk.gov.tr. Retrieved 5 June 2016.
- ↑ "頻率供應計畫". 頻率供應計畫. Ministry Of Transportation and Communication R.O.C. Retrieved 14 October 2015.
- ↑ "Important information for users of WiFi devices in the 5GHz band" (PDF). rsm.govt.nz. Archived from the original (PDF) on 2 August 2017. Retrieved 2 August 2017.
- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 "Relating to the use of Short Range Devices (SRD)" (PDF). ECC. 10 September 2015. Retrieved 16 February 2016.
- ↑ "工业和信息化部发布5150-5350兆赫兹频段无线接入系统频率使用相关事宜的通知". www.miit.gov.cn. Archived from the original on 30 May 2013. Retrieved 2 August 2017.
- ↑ Jiang, Daniel; Delgrossi, Luca (2008). "IEEE 802.11p: Towards an International Standard for Wireless Access in Vehicular Environments" (PDF). IEEE. Retrieved 28 December 2013.
Further reading
- "Regulatory Database". Linux Wireless — An online database of allowed frequencies used by Linux 802.11 subsystem.
- "FCC Regulations Update". www.cisco.com — Dynamic Frequency Selection for 5 GHz WLAN in the U.S. and Canada.