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Wireless eC, Ce or XX

Posted: Mon Oct 01, 2018 10:01 am
by Askey307
Good Morning

What is the difference between the eC, Ce, eeeC, eCee and XX? When would I use which and how can I advice clients which is the best to make use of.

Kind Regards

Re: Wireless eC, Ce or XX

Posted: Mon Oct 01, 2018 10:06 am
by joegoldman
Do some simple research you will find your answers - especially in the Mikrotik wiki/Manual

From https://wiki.mikrotik.com/wiki/Manual:I ... e/Wireless
Use of extension channels (e.g. Ce, eC etc) allows additional 20MHz extension channels and if it should be located below or above the control (main) channel. Extension channel allows 802.11n devices to use up to 40MHz (802.11ac up to 80MHz) of spectrum in total thus increasing max throughput. Channel widths with XX and XXXX extensions automatically scan for a less crowded frequency based on the number of concurrent devices running in every frequency and chooses the ā€œCā€ - Control frequency automatically.

Re: Wireless eC, Ce or XX

Posted: Mon Oct 01, 2018 3:10 pm
by Askey307
Do some simple research you will find your answers - especially in the Mikrotik wiki/Manual

From https://wiki.mikrotik.com/wiki/Manual:I ... e/Wireless
Use of extension channels (e.g. Ce, eC etc) allows additional 20MHz extension channels and if it should be located below or above the control (main) channel. Extension channel allows 802.11n devices to use up to 40MHz (802.11ac up to 80MHz) of spectrum in total thus increasing max throughput. Channel widths with XX and XXXX extensions automatically scan for a less crowded frequency based on the number of concurrent devices running in every frequency and chooses the ā€œCā€ - Control frequency automatically.
That I have done, however, it provides theoretical input. Thus the reason I'm turning to forums for more practical and experienced input. Theoretical knowledge can only help so much in the field.

Re: Wireless eC, Ce or XX

Posted: Tue Oct 02, 2018 6:09 am
by joegoldman
It's still a fairly simple concept that the blurb explains... You choose your control (main) frequency and decide if you want extension to go above/below it. XX for auto-selection so it actively avoids noisy neighbours.

XX is probably better for noisy/changing environments, eC vs Ce is purely based on your own site scan and deciding which part of the spectrum you want to fill up, and using the options to fill in the way you want it filled.

Re: Wireless eC, Ce or XX

Posted: Tue Oct 02, 2018 9:35 am
by Askey307
It's still a fairly simple concept that the blurb explains... You choose your control (main) frequency and decide if you want extension to go above/below it. XX for auto-selection so it actively avoids noisy neighbours.

XX is probably better for noisy/changing environments, eC vs Ce is purely based on your own site scan and deciding which part of the spectrum you want to fill up, and using the options to fill in the way you want it filled.
Hmmm that makes sense. Per your suggestion in a AP filled building with let's say 3rd party AP's, would you recommend XX?

Re: Wireless eC, Ce or XX

Posted: Tue Oct 02, 2018 12:01 pm
by nichky
So when i'll play with XX i have to set up frequency=auto?

Re: Wireless eC, Ce or XX

Posted: Tue Oct 02, 2018 12:09 pm
by joegoldman
So when i'll play with XX i have to set up frequency=auto?
No you can specify frequency, and XX will decide which should be control and which should be extension (And adapt). This works better probably for 80mhz extension (XXXX or whatever) where you specify frequency and it will pick where it should push the extension channels.

But if you set to Auto, and XX, it should try and pick the least busiest channel AND pick the best control/extension. I do not believe that frequency = auto automatically adjusts based on noise though, only at first selection.

Re: Wireless eC, Ce or XX

Posted: Tue Oct 02, 2018 1:51 pm
by nichky
if i choose one of the frequency and also on Scan-List. What's the point of XX?
My question is how correct do i need to set up frequency and Scan-List to get better result, with XX?