On 18/08/17 01:32, Håvard Rabbe wrote: > Hi > I’m using wifi card with AR9280 chipset that uses the ath9k driver. > > The card has 2 available radio chains and I’m only going to connect 1 antenna. > > Is it possible to disable the radio chain im not using? > > > Best Regards, > > Håvard Rabbe >
Help text from iw: phy <phyname> set antenna <bitmap> | all | <tx bitmap> <rx bitmap> You can set the rx/tx mask with iw phy phy0 set antenna 1 to not use the second chain or iw phy phy0 set antenna 1 3 to not use the second chain for tx, but still use it for rx. You can see the currently active mask with: iw list | grep Antenna Be aware that the value set here is a bitmask only allows the values 1/3/7 (for 1, 2 and 3 chains). Chain 0 is always active. --> You can not disable chain 0 and only use chain 1. BR Matthias
