tx power related problem.

[Vinayak Naik]

Please have a look at the webpage
http://www.cse.ohio-state.edu/~naik/programming/transmission_power_802.11.html

- Vinayak


On Thu, 9 Sep 2004, nikhil hegde wrote:

> Hi All,
> I am trying to reduce the transmission power of my
> 802.11 PCI card. It is US robotics prism2 based
> chipset. This I want to do to set up a multi hop
> connection i.e try to isolate a machine from a third
> machine which can be reached through an intermediate
> machine.I am using hostAP  0.2.4 driver.
> I tried:
>  iwconfig wlan0 txpower <somevalue>
>     Error for wireless request "Set Tx Power" (8B26)
>     Set failed on device wlan0 operation not
> supported.
> I also tried to disable auto control of power through
>     iwpriv wlan0 alc 5 0
>     iwpriv wlan0 prism2_param 5 0
>   but not sure which actually is needed for reducing
> the power.
> Then I tried setting the power to -22.5dbm by
>     iwpriv wlan0 writemif 62 120
>
> Is this right?I am not able o observe visible
> changes.Also could anyone please tell me the minimum
> power value.
>
> thanks
> Nikhil
>
>
>
>
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