Can I use 36, 40, 44, 48, 149, 153, 157, 161 in India under 5ghz radio with 40Mhz

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Currently we are using 36, 40, 44, 48 only under 5ghz radio with 40Mhz . Can I add 49, 153, 157, 161 also . . Deployment is huge around 850+ access points..... can i use 49, 153, 157, 161  in india.... we are planning to change 40mhz to 20Mhz/auto on 5ghz radio is it fine.
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Posted 2 years ago

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Philipp Tittmann

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Hi, 
some of the channels you are talking about are simply not standardized. To check the available channels in your country see https://en.wikipedia.org/wiki/List_of_WLAN_channels or the regulatory domain. 

greetings
Philipp

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Pala, Zdenek, Employee

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It also depends on AP and antenna.
I have not found any useful info in the above link , AP model is 3805i

Can anyone suggest what more channels I can use apart from "36, 40, 44, 48" in India.

Considering the fact that the Deployment is dense (850+) access points , and also changing 5 ghz radio from 40mhz to 20mhz is suggestable ?


Thanks 
SaiPrasad 
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Philipp Tittmann

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at least you should be able to use channels 52-64 / 100-116 / 132 -140 but i am not sure about the DFS in india, because for most countries (europe / US) those are DFS channels and need to change in case of radar interferences etc. 

In high-densitiy environments it is always the best way to use 20MHz channels in 5GHz radio, because it provides more channels to use, means less interefences and a cleaner air. get rid of the high bandwith stuff with 802.11ac :-)
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Jason, Employee

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Hello SaiPrasad, 

For the WS-AP3805e, running 10.11.01 firmware, I see channels 36-64 available for India. This is with the small PRO-ANT-DIP model antennas connected.  As Zdenek and others have mentioned, the available channels can vary depending on antennas as well as other factors.  
This kb article explains a more on the variables taken into account with compliance testing. 

https://gtacknowledge.extremenetworks.com/articles/Q_A/Why-can-I-not-set-the-access-point-power-to-t...

Available channels can vary due to antenna, channel width and also between models, different firmware versions, antennas, etc. 
I have seen other AP's that have some of the upper band UNII-3 channels (149-165) available in India, but not the AP3805i model.  

That being said, with a large deployment like you have, I agree with what Philipp has commented.  It is fine to use 20mhz setting with 5ghz and very much recommended.  

Regards,
Jason