2010-03-07 03:55:58

by Malte Gell

[permalink] [raw]
Subject: iwconfig link quality only up to 70%

Hello,

When i check the link quality iwconfig says "Link Quality=63/70".

I wonder, why does it stop at 70%? Why doesn't it say "63/100"?

I use Linux kernel 2.6.32 on openSUSE 11.1 with a Fritz! WLAN N stick. I know,
not a big issue, I am just curious.

Thanx
Malte


2010-03-07 04:23:59

by Malte Gell

[permalink] [raw]
Subject: Re: iwconfig link quality only up to 70%


Larry Finger <[email protected]> wrote

> On 03/06/2010 09:55 PM, Malte Gell wrote:
> > Hello,
> >
> > When i check the link quality iwconfig says "Link Quality=63/70".
> >
> > I wonder, why does it stop at 70%? Why doesn't it say "63/100"?
> >
> > I use Linux kernel 2.6.32 on openSUSE 11.1 with a Fritz! WLAN N stick. I
> > know, not a big issue, I am just curious.

> It does not stop at 70%. In fact 63/70 == 90%. As all these signal and
> quality numbers are purely arbitrary, they can be normalized in any way
> you want.

Ok, I understand.

> In a number of the Realtek vendor drivers, there is a comment
> "For Netgear case, they want good-looking singal strength".

:-)

2010-03-07 04:13:44

by Larry Finger

[permalink] [raw]
Subject: Re: iwconfig link quality only up to 70%

On 03/06/2010 09:55 PM, Malte Gell wrote:
> Hello,
>
> When i check the link quality iwconfig says "Link Quality=63/70".
>
> I wonder, why does it stop at 70%? Why doesn't it say "63/100"?
>
> I use Linux kernel 2.6.32 on openSUSE 11.1 with a Fritz! WLAN N stick. I know,
> not a big issue, I am just curious.

It does not stop at 70%. In fact 63/70 == 90%. As all these signal and quality
numbers are purely arbitrary, they can be normalized in any way you want. In a
number of the Realtek vendor drivers, there is a comment "For Netgear case, they
want good-looking singal strength".

Larry