Freerunner test

[Joerg Reisenweber]

Am Sa  31. Mai 2008 schrieb Mike Montour:
> Kevin Dean wrote:
> 
> > I'd like to reconfirm this before reporting, or at least kill my
> > theory before reporting on it and creating a false lead. It seems that
> > the SIM itself is important.
> 
> Two likely factors affecting GSM buzz are: which band it's using (850 or 
> 1900), and the transmitted signal strength (how far it is from the 
> tower). If you had SIMs from different carriers I could easily see these 
> factors being different. I can't think of a reason that two SIMs from 
> the same carrier would differ, except for randomness in which tower it 
> happened to use.
> 
> It looks like one of the 'Engineering Mode' AT commands can at least 
> report which band you're on and the base-station ID. There is also a 
> "transmit power" field listed, but when I tested it a minute ago it was 
> always 0.
> 
> 
http://wiki.openmoko.org/wiki/GTA01_gsm_modem#Serving_Cell_Information_.282.2C1.29

you read this field during a call when actually transmitting audio (NO 
silence)?

For the rest: ACK
/j
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