[U-Boot] U-book and GPLv3? (fwd)

Robin Getz rgetz at blackfin.uclinux.org
Thu Jul 2 19:12:03 CEST 2009


On Thu 2 Jul 2009 12:11, Larry Johnson pondered:
>
> In the United States, most radio transmitters must be type accepted
> (certified) by the Federal Communications Commission.  Modification
> voids the type acceptance, so operating a modified mobile phone on its
> original frequencies would be illegal regardless of what the phone
> company's rules say.  However, no certification is necessary for
> transmitters operated according to the rules for the Amateur Radio
> Service.  Thus, an licensed amateur could legally use a modified mobile
> phone, provided it transmitted on frequencies allocated for amateur
> radio and met the other requirements for amateur operation, including
> not causing harmful interference to other services.

Assuming that the _licensed_ amateur could modify the phone enough that it 
_could_ operate on frequencies allocated for amateur use.

The only thing that would be potentially close is a European GSM phone:

            Rx           Tx
E-GSM-900   880.0–915.0  925.0–960.0 MHz
R-GSM-900   876.0–915.0  921.0–960.0 MHz
T-GSM-900   870.4–876.0  915.4–921.0 MHz

& the US amateur band at 902 - 928 MHz.

I don't think any of the CDMA phones are close enough to the amateur bands to 
have a hope of working - but I'm not as familiar with CDMA as GSM.


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