How to set "Spectral Width Adjust" to 2.5Mhz?

[hiwu.tw]

Hi :
Is it possible to adjust "Spectral Width Adjust" to 2.5Mhz?
Current available value is "20Mhz/10Mhz/5Mhz".

Thank you

-Jack

[sergis]

I think there is not possible to set 2.5Mhz channel witdth becouse it will be limited by hardware..Why you want use 2.5Mhz width?

[hiwu.tw]

One of our customer need this kind of feature. We will find other solution.

Thank you

[physical]

I think there is not possible to set 2.5Mhz channel witdth becouse it will be limited by hardware..Why you want use 2.5Mhz width?
don't assume that such things are limited by hardware...

you'd be suprised how much software enforced restrictions lie behind a binary blob...
The atheros radio is an interesting thing... hardware wise it seems a bit limitless
unless UBNT says its physically impossible due to hardware, I would assume that its possible, just not implemented...

the trick is gettin UBNT to say one thing or the other...

[rajmv001]

Hi,

I am using the beta version of the ubiquiti radio driver (ubnt-hal-0.7.379.tar) for Ubiquiti's SR4 cards. Can you pls. provide information on how to modify the channel width (5Mhz, 10 Mhz or 20 Mhz) ?.

Thanx
Raj

[WHT]

One of our customer need this kind of feature. We will find other solution.
Can we ask WHY they need that kind of feature?

Perhaps slow scan TV? Morse code? SCADA?


It *is* available on some Atheros chipsets, I don't recall which ones...so you'll have to bird dog which ones and then start calling around to see whose WiFi radios use the chip. You may have to recompile the firmware.

[mike95826]

I was just going to ask the same question about 2.5 Mhz or even 1.25. Sometimes you just need to get A SIGNAL from place to place thru the interference especially on 900Mhz or to put one more link on an existing tower. Maybe something for a future firmware version? It's like the "good to have" abilities such as the ability to create full duplex backhaul links :wink: that eventually become the "need to haves" that keep technology moving forward and make our industry interesting.

[WHT]

1.25 MHz + Youtube = [Return Error - Parameters Exceeded. Please try again]        :lol:

[mike95826]

Youtube... we don't need no stinking youtube :D :D :D

Isn't the internet only usefull for email spam? :lol: :lol:

[DieselPower]

Yeah, thats why we need 1.25MHz channels, cause we don't need youtube, just spam :D

[mike95826]

Just joking... The 1.25 Mhz would only be useful for some speciallized purposes mostly very low bandwidth single point apps like text email or snapshot imaging type web cam where the scene doesn't change that often or data collection like mentioned above.

On the other hand, a 2.5 Mhz channel would give the equivalent of a single DSL and would be useful to provide service to a couple of homes that would otherwise be unreachable.

[kb9mwr]

I'm all for a channel width less than 5 MHz. I certainly have use for something like that. I'd love to see 2.5 MHz..

I know WiMax supports a wide variety of channel widths.