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How to understand the actual channels used for 'wide' channels based on Omada configuration options?

How to understand the actual channels used for 'wide' channels based on Omada configuration options?

How to understand the actual channels used for 'wide' channels based on Omada configuration options?

Friday - last edited Tuesday

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Registered: 2024-11-01

How to understand the actual channels used for 'wide' channels based on Omada configuration options?

Friday - last edited Tuesday

Tags:

Model: EAP773

Hardware Version: V1

Firmware Version: 1.0.14 Build 20240801 Rel. 78844(4555)

I have two issues...

1. The list of available channels that one can choose for 2.4/5/6 GHz operation reflects only the 20 Mhz channels and does not change if you select a different channel width (40, 80, 160, 302). This is very confusing/misleading. I found a thread ( https://community.tp-link.com/en/business/forum/topic/236128) from 2020 complaining about this but it has not been addressed in the firmware as of yet (disappointing).

2. Nowhere can I find how the Omada firmware channels correlate with the wide channels. There are standards for this, usually the channel specified is the 'middle' 20 MHz channel in the wide channel (as far as practicable), though some vendors use the first channel in the wide channel. WHat does the TP-Link firmware use? First, middle, something else?

This is important since wide channels are commonly used nowadays and when you have multiple APs you want/need to be able to avoid interference as far as possible.

Does anyone have any definitive knowledge about thsi important topic as far as Omada APs goes? I'm surprised that the T-Link documentation does not discuss this at all.

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Tuesday - last edited Tuesday

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Re:How to understand the actual channels used for 'wide' channels based on Omada configuration options?-Solution

Tuesday - last edited Tuesday

1. The channels supported in different countries and regions vary. Take 5Ghz at 160mhz for example:

US：36、40、44、48、52、56、60、64、100、104、108、112、116、132、136、140
AU：36、40、44、48、52、56、60、64、100、104、108、112、116、132、136、140、149、153、157、161、165
CA：36、40、44、48、52、56、60、64、100、104、108、112、116、132、136、140、149、153、157、161、165

So we display all the channels regardless of the channel width chosen.

2. When the bandwidth of the EAP is set to "auto", the specific bandwidth it operates on will be automatically adjusted according to the surrounding wireless environment and the device's support capabilities. Different EAP devices may have different behaviors and algorithms to determine the optimal working bandwidth. Under normal circumstances, the device will attempt to select a bandwidth with less interference and better signal quality to work. However, the actual working bandwidth may be affected by various factors, such as interference from other nearby wireless networks and the capabilities of the connected client devices.

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Tuesday - last edited Tuesday

Posts: 769

Helpful: 74

Solutions: 285

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Registered: 2024-06-22

Re:How to understand the actual channels used for 'wide' channels based on Omada configuration options?-Solution

Tuesday - last edited Tuesday

1. The channels supported in different countries and regions vary. Take 5Ghz at 160mhz for example:

US：36、40、44、48、52、56、60、64、100、104、108、112、116、132、136、140
AU：36、40、44、48、52、56、60、64、100、104、108、112、116、132、136、140、149、153、157、161、165
CA：36、40、44、48、52、56、60、64、100、104、108、112、116、132、136、140、149、153、157、161、165

So we display all the channels regardless of the channel width chosen.

2. When the bandwidth of the EAP is set to "auto", the specific bandwidth it operates on will be automatically adjusted according to the surrounding wireless environment and the device's support capabilities. Different EAP devices may have different behaviors and algorithms to determine the optimal working bandwidth. Under normal circumstances, the device will attempt to select a bandwidth with less interference and better signal quality to work. However, the actual working bandwidth may be affected by various factors, such as interference from other nearby wireless networks and the capabilities of the connected client devices.

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