X6 R8000 Tri-band Setting both 5ghz channels to 36 & 44 but ch 2 wont go below 100 DFS

[Eric_Cartman]

Hi Guys I am trying to get a better signal on my second 5ghz signal and the Netgear guys last night advised I use channels 36 40 44 or 48 as preffered channels for 5ghz. Weird things is on my router I can set the 5ghz-1 to 36 but the portal wont allow me to set the 5ghz-2 to anything below 100DFS. Is it possible for me to set both my 5ghz channels to the lower range of between 36 and 48 and if how can i adjust settings. Ideally i want my 5ghz-1 on 36 ande 5ghz-2 on channel 40 is this possible? The reason i want to do this is the odd time the DFS 100 channel disapears I dont have smart connect on My region is set to europe.

[plemans · Accepted solution]

in 80hz wide channels, the overlap is from channel 36-64. If you don't include dfs channels, theres only 2x 80hz wide spectrums available. Including dfs its 4-5 segments large enough to accomadate 80hz wide channels. when you start getting into 160hz wide channels, it gets even harder. 

Plus you have to keep in mind the average user knows nothing about this. So how many complaints would people file because their performance dropped when they moved their  channels to the "optimized" channels. 

It stinks for the advanced user.

[Eric_Cartman]

My 5ghz settings screen print

[plemans]

Its not possible. Here's why.

The whole point of 2x 5ghz bands is so that they don't interfere with each other when broadcasting. Since 2 radios on the same band can't broadcast at the same time. And there's enough bandwidth in the 5ghz range to seperate them out and have 2x radios.

So they're designed so you can't set them in the same wireless channel range. this means 1 of the 5ghz bands is designed for highband and one for low band. 

Otherwise it'd be pointless to have 2x 5ghz bands since they can't broadcast at the same time if they're on the same channels. You'd effectively have a dual band router if they were on the same channel. 

[Eric_Cartman]

Thanks Plemans, Ok definitly i was a bit silly suggesting channels 36 and 44  so close together ,but for instance would 36 and 64DFS not have enough channel space between them?

Channel 5ghz-1 is locked at range 36 to 64DFS

Channel 5ghz-2 is locked at range 100DFS to 128DFS

Thats a huge gap between 64 and 100 surely the radios would work fine at say 36 and 64 I would have thought of is the 5ghz prone to bleeding radio signals through multiple channels unlike 2.4ghz range?

[plemans · Accepted solution]

in 80hz wide channels, the overlap is from channel 36-64. If you don't include dfs channels, theres only 2x 80hz wide spectrums available. Including dfs its 4-5 segments large enough to accomadate 80hz wide channels. when you start getting into 160hz wide channels, it gets even harder. 

Plus you have to keep in mind the average user knows nothing about this. So how many complaints would people file because their performance dropped when they moved their  channels to the "optimized" channels. 

It stinks for the advanced user.

[Eric_Cartman]

Thanks plemans your very knowledgable. You answered my question fully and hopefully anyone who has this question again will come across this thread thanks again! 🙂