Re: [Madwifi-users] Madwifi CM9 UFL headers?
Status: Beta
Brought to you by:
otaku
From: Tony E. <es...@pe...> - 2007-07-20 15:24:59
|
jonathan - here's a doc that explains madwifi's diversity behavior: http://madwifi.org/wiki/UserDocs/AntennaDiversity if you have antennas connected to both connectors, then you're best using the madwifi's default diversity setting(s). if you only have one antenna connected, then you probably should disable diversity, and pin your rx and tx antennas to the right connector. that said, you may have to experiment to see which connector is '1', and which is '2'. in my experience, there's no guarantee that 'main' maps to '1'. also one other point is the HAL always seems to pick the correct rxantenna independent of the diversity setting, however the same doesn't apply to the txantenna, so make pick the right one if you disable diversity. ciao, /tony pepper computer, inc. Jonathan wrote: > Hi all > > Apologies if this question has been asked before but the SourceForge > mailing list search appears borked and google is proving unusually > useless. > > I'm running a Wrap board with Voyage linux (madwifi drivers) and two > Atheros CM9s as a wireless router. > > I've always wondered what the two ufl antenna headers on my CM9 were > used for and have been told repeatedly that the outside one (on the > cm9) is the "main" connector and the inside one was "aux". Nobody > seems to be able to tell me if they're connected in serial/paralell or > what? Then I read something about them being connected using > "Diversity" which if I remember my RF theory means that the card picks > the best one for the job... > > Is this correct? > Can the card use both at the same time or does it pick one? > If it's a diversity thing then is there really any difference between > the two other than the chip sees them as being different and picks the > best one? > > This is the antenna part of the output of my athstats > [1] tx 4898499 rx 4473967 > [2] tx 1918339 rx 2345686 > > This would lead me to believe that both headers are receiving data... > Is there a way I can tell the card that it should only ever listen on > the one? > > Wow, a lot of questions... I hope someone out there is able to answer them? > > Thanks a stack > > j. > > ------------------------------------------------------------------------- > This SF.net email is sponsored by: Microsoft > Defy all challenges. Microsoft(R) Visual Studio 2005. > http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ > _______________________________________________ > Madwifi-users mailing list > Mad...@li... > https://lists.sourceforge.net/lists/listinfo/madwifi-users |