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Forum Discussion
Can I set 5GHz channels to 40Mhz?
I have 2 Orbis and I have some questions about channelwidts for 5Ghz. I have no problem with the dedicated 5GHz backhaul radio operating on a 80MHz bandwidth, but I would REALLY like to be able t...
I cannot recall anyone ever mentioning that this can be done. What I have seen is this description (below) of the 5G radio space, with the comment that customers would be probably be unhappy with slower connection speed. When people pose a question on the forum, they usually have something specific in mind. So, I am wondering what is the advantage of reducing the channel width, or what problem does it solve. Thanks
The largest thing that reducing chanel width does is reduce CCI. With non DFS channels being used, we only have a very limited number of 5GHz channels to select from. I understand the backhaul radio being at 80MHz, but the fronthaul radio I would love to reduce the channel width to 20 or 40MHz so that I can select a clean frequency.
This is a MAJOR issue in MDU environments, or dense neighborhoods.
Only thing you can do is help with noise and interferences is turn down the power output of the radios which is recommended if your in a wifi congested area or nieghbor hood. I have a Orbi user right next door to me. I set my 5Ghz front haul to 36 while they are on 48. There 2.4G is on 11 while I use 1. Seems to work well.
jetter2 wrote:This is a MAJOR issue in MDU environments, or dense neighborhoods.
Absolutely, having WiFi nearby in all three dimensions would be a nightmare. And, "cooperation" is a touchy situation with people one may not even know. Even if you could create a 40mb or 20mb channel, that doesn't stop neighbors from stomping on all of them.
This whole 5G radio business is much more complicated than I had thought. Found an ancient (2013) description of "5G Planning" that claims that the AC standards allow frame-by-frame selection of channel width and that 5G channels can only "grow" down (not up). So, my 5G claims to be on 48 and my WiFi Analyzer says that it is from 5170 to 5250 GHz. Channel 48 is at 5240. Since 5G is not allowed to grow down past 36, maybe setting the 5G to 36 will result in a 20mb channel?
http://www.revolutionwifi.net/revolutionwifi/2013/03/80211ac-channel-planning.html
Andrew Von Nagy is the dude that wrote that - hes a super sharp CCIE and CWNE guy. I would post this question at him as I think we might just be getting lost in our own interpertation.
The Orbi is what it is. You can ask and request is all you can do from NG. If the system isn't to your liking or has the features you desire, then you are free to find something that does.
Good Luck.
