Hi all,
I'm engaged in a research project that requires us to
reduce the range of an ad-hoc wifi network. However, when
I change the txpower (either using iwconfig, or iw
command), I can only see the difference when I display the
current configuration (e.g., with iwconfig). I cannot see
any difference in the actual tx power observed on a
spectrum analyzer.
Thus, my question is: is the function of changing the
txpower really supported? If it is, what steps should I
take to make it work? I tried with ifconfig up/down when I
change the txpower, but it does not change anything. Maybe
I do something wrong? Do I use the correct versions of the
firmware and the driver?
I've noticed a patch related to this issue, published on
2012-01-27 by Christian Lamparter. It seems that it is
included in my driver version, but maybe I'm wrong and I
should apply some additional patch?
We use NetGear WNDA3100(v1) hardware [Atheros
AR9001U-(2)NG] and carl9170 driver
(driverversion=3.0.0-21-generic firmware=1.9.2).
Best regards,
Michal Kudelski
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