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

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

New Contributor II
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.

Extreme Employee
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.

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.


New Contributor III
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 

New Contributor II
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 ?


Extreme Employee
It also depends on AP and antenna.
Regards Zdeněk Pala