BTW, switching of power levels is really working. I made some
measurements of the power drain and the packet error rate (during
sending) of the PCMCIA card after switching the RF power level. Both are
changing. The drained power goes up with higher RF power levels (the
amplifier takes more power) and the PER goes down.

--
Jean-Pierre Ebert
vikas kawadia wrote:
> 
>         We are using Cisco aironet 340's and need to change the transmit power
> level of the cards. The doc says it has 4 power levels : 1, 5, 15 and
> 30mW.
> 
>         I change the power level by modifying the XmitPower field in
> /proc/aironet/eth1/Config. The changing works perfectly fine for 1 and
> 30mW. But when I try to change to 5 or 15mW, it changes to 30mW. It gives
> no error messages but I can change only to either 1mW or 30mW.
> 
>         Either the driver does not support all the 4 power levels or the
> card's hardware does not support 4 power levels.
> 
>         After this attempt to change the power level to 5 or 15mW, we also
> tested the range physically and found that the range is same as that at
> 30mw, thus ruling out the possibility that the power level is actually
> changing but the proc is not updated.
> 
>         Any clue as to where the problem might be ?
> 
> Thanks
> ..vikas
> 
> _______________________________________________
> Aironet mailing list  -  Aironetcsl.cse.ucsc.edu
> http://csl.cse.ucsc.edu/mailman/listinfo/aironet
_______________________________________________
Aironet mailing list  -  Aironetcsl.cse.ucsc.edu
http://csl.cse.ucsc.edu/mailman/listinfo/aironet

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]