Re: Does the HostAP driver come up at max TX power?

From: Jouni Malinen (
Date: 2002-03-30 06:09:28 UTC

On Fri, Mar 29, 2002 at 05:22:38PM -0500, Brian Capouch wrote:

> I just got one of the 100mw Prism2 cards from Demarctech. I have been
> looking through the archives trying to determine whether the additional
> output potential of this card is going to be available by default, or
> whether I am going to have to fiddle with it to get that to happen.

It depends.. The driver does not touch any TX power related configuration unless specificly asked to with 'iwconfig wlan0 txpower <val>'. I would assume that most card manufacturers use near to the maximum values for this, but at least the cards I have used do not seem to set this to the exact maximum.

I do not know whether there is really a noticeable difference in the output power in some cards. Anyway, I was able to increase the signal levels a station got from the AP on some tests with this.

Jouni Malinen                                            PGP id EFC895FA

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