-32763.0 dBm

[Dan Williams]

On Thu, 2012-09-27 at 17:14 +0200, Aleksander Morgado wrote:
> >>>>>>> Your output with Get Signal Strength was before:
> >>>>>>>
> >>>>>>> ECIO:
> >>>>>>>         Network 'umts': '-126.0 dBm'
> >>>>>>>
> >>>>>>> That was given from a raw read value of '252' treated as unsigned. If we
> >>>>>>> treat that value as signed we would get '-4', which multiplied by (-0.5)
> >>>>>>> gives us +2dBm.
> >>>>>>
> >>>>>> Which takes us to the next issue, which is that EcIo is not supposed to
> >>>>>> be positive as you usually have more interference/noise than signal
> >>>>>> energy...
> >>>>>
> >>>>> Really? Well, anyway, the last patch seems to give consistent readings:
> >>>>>
> >>>>
> >>>> I pushed the fix now; if someone wants to investigate a bit more
> >>>> regarding the reported Ec/Io values it would be great.
> >>>
> >>> EC/IO given in dBm should actually be always negative; values of less
> >>> less than 3 (ie, -2 or -1 which would be really, really good signal)
> >>> typically aren't seen since they're so good, just like you never get a
> >>> WiFi signal better than -20 dBm.
> >>>
> >>> Quick overview:
> >>>
> >>> http://www.telecomhall.com/what-is-ecio-and-ebno.aspx
> >>>
> >>
> >> Can anyone else check the reported Ec/Io values with other modems? I'm
> >> still stuck with modems with pretty old NAS, which they don't report
> >> Ec/Io at all... :/
> > 
> > Does UML290 work here?
> > 
> 
> Still in CDMA mode my UML290, no luck putting it in UMTS mode yet :-/

Ok I'll grab it.

Dan