+ wireless-regdb On Mon, 2013-10-07 at 10:29 +0200, Johannes Berg wrote: > On Sat, 2013-10-05 at 13:18 +0200, Felix Fietkau wrote: > > > > I understand. I don't understand the pieces about "max_antenna_gain". > > > Right now ath9k has an antenna gain value in the EEPROM, and it compares > > it against the channel max_antenna_gain value. > > I just don't understand what the max means. If I connect a 5dBi gain > antenna, but the "max antenna gain" is 3dBi, what should happen? > > > Let's assume we have configured the tx power to the maximum value, the > > regdb allows 3 dB antenna gain, and the ath9k EEPROM contains an antenna > > gain of 3 dB as well. > > If we now add another 3 dB of user-configured antenna gain, it first > > starts tapping into the regulatory-allowed antenna gain before reducing > > tx power in mac80211. The driver needs to know about this, so I put the > > calculated maximum antenna gain into the hw conf as well. > > I don't think it really works this way, does it? I don't believe the > "regulatory-allowed antenna gain" is really something that's allowed on > top of the EIRP? > > johannes > > -- > To unsubscribe from this list: send the line "unsubscribe linux-wireless" in > the body of a message to majordomo at vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html >
