I have R52 WiFi card, which is “R52 works on 2.312-2.499 and 4.920-6.100GHz frequency range”. I can’t get it working with ath5k driver on Linux. And can’t get it working on frequency 2.312 GHz, 5.8** and more GHz and so on…
How to make it working on Linux in wide frequency range and channel bandwidths?
On your site I see that “Supported OS” = “MikroTik RouterOS, Windows XP”
but other sites says that your cards works with plain Linux too…
P.S. I hope, Vista and windows 7 is UNsupported 
this really is a forum for RouterOS, maybe you can ask in some linux forums. This is a simple Atheros card after all
Simple Atheros?.. Does it have modifications? “Supports MikroTik Nstreme” - modification… => driver must be modified.
OK, question about card itself, not about OS:
Do I have chance to get it working in wide frequency range with standard drivers (probably slightly modified)? Or card need some know-how secret initializations, which is commercial secret of Mikrotik and supported in closed source drivers in windows XP and RouterOS? Please, tell me to clear situation… ~_^
you will never get Nstreme for linux because it’s not a driver feature, but a RouterOS software feature. I have no idea how this linux driver works and what frequencies will it give you, but the card supports ~2.3-2.5 and ~4.9-6
As far as I understand, RouterBoard forum is related to MikroTik. I described my problem here (nick = x86) http://forum.routerboard.com/viewtopic.php?f=10&t=3062 but nobody answers…
Now I just want to know one thing: is it ever possible to run Mikrotik’s WiFi cards on Linux? If yes - kernel version, driver? Can I use ath5k driver?
Please, point me where I can get support?..
P.S. I believe that they works on 2.3 - 2.5 I used spectrum analyzer to ensure this ~_^
they are just plain stupid atheros-cards so a “modprobe ath_pci” should do the trick at least on kernels < 2.6.20
and every driver suited for ar541x-cards should work with thr r52, r52h and r5h, as all of them are just atheros-cards.
that you can’t access specific frequencies is a setting in your module, it is not (other than on a rOS-System) depending on the eeprom-setting, so a card without activated 5ghz-frequencies works ootb on a linux-system on 2,4ghz and 5ghz, no matter what is stored inside the eeprom.
so this is definitely not the right place to ask, if you have any problems, ask your distributor, a newsgroup or linux user group in your area. sorry if there is no better answer, but is has nothing to do with the r52 itself, its an option to your module what frequencies you have available.
just a bit more information from a small google search with “madwifi frequencies”:
http://n2.nabble.com/MadWifi-Frequency-problem.-td219632.html
modprobe ath_pci outdoor=1 xchanmode=1 countrycode=196
the countrycode depends on the country you are in at the moment, a list is here: