What is the max power for my card?

Sachin Ganu sachin
Sun Jan 19 09:53:00 PST 2003

Hi Jouni,

On similar lines, everything below -47dBm is clamped.
My question is what is the actual transmit power of the card when
the card is set at -47dBm?

I think there is a routine in prism2_ioctl.c that does the calculation
But I am not sure on what is the actual Tx power of the card? 
Sachin Ganu
Ph.D Candidate
WINLAB, Rutgers University
73 Brett Rd, Piscataway NJ 08854

On Sun, 19 Jan 2003, Jouni Malinen wrote:

> On Sun, Jan 19, 2003 at 01:12:53AM -0800, wireless at douglasheld.net wrote:
> > The documentation online for this card is unclear; I wonder if I can use
> > iwconfig to query the maximum power setting?
> No, Host AP driver has no way of knowing the real maximum transmit power.
> > Currently, iwconfig accepts ridiculously large values, like 300mW, without
> > complaint.
> Everything over 20 dBm / 100 mW is interpreted as the maximum value for
> the card. In other words, setting it to 300 mW or 200 mW configures the
> card exactly in the same way as using 100 mW.
> -- 
> Jouni Malinen                                            PGP id EFC895FA
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