the new Atheros chipsets found on the CM9’s support smaller channels ( 5 and 10 mhz ) would we be seeing this in Mikrotik 2.9 ?
Gino
Try 2.9.12, it have this feature
I wonder why I get less channels avaiable in 10Mhz than 20MHz mode.
A bug?
:S What version of MT? on 2.9.12 i see all the channels…
Regards
2.9.12,
as you can see 7 in 10mhz vs 13 in 20MHz
0 interface-type=Atheros AR5213 chip-info=“mac:0x5/0x9, phy:0x43, a5:0x36, a2:0x0, eeprom:0x4008” pci-info=“01:03.0”
capabilities=tx-power-control,ack-timeout-control,virtual-ap,alignment-mode,noise-floor-control,scanning,burst-support,
nstreme,sniffing,compression,power-channel
default-periodic-calibration=enabled
supported-bands=2ghz-b,5ghz,2ghz-g,2ghz-g-turbo,5ghz-10mhz,5ghz-5mhz,2ghz-10mhz,2ghz-5mhz
2ghz-b-channels=2412:0,2417:0,2422:0,2427:0,2432:0,2437:0,2442:0,2447:0,2452:0,2457:0,2462:0,2467:0,2472:0
5ghz-channels=5180:0,5200:0,5220:0,5240:0,5260:0,5280:0,5300:0,5320:0,5500:0,5520:0,5540:0,5560:0,5580:0,5600:0,5620:0,
5640:0,5660:0,5680:0,5700:0
2ghz-g-channels=2412:0,2417:0,2422:0,2427:0,2432:0,2437:0,2442:0,2447:0,2452:0,2457:0,2462:0,2467:0,2472:0
2ghz-g-turbo-channels=2437:0 5ghz-10mhz-power-channels=5180:0,5190:0,5200:0,5210:0,5220:0,5230:0,5240:0,5250:0,5260:0,
5270:0,5280:0,5290:0,5300:0,5310:0,5320:0,5500:0,5510:0,5520:0,
5530:0,5540:0,5550:0,5560:0,5570:0,5580:0,5590:0,5600:0,5610:0,
5620:0,5630:0,5640:0,5650:0,5660:0,5670:0,5680:0,5690:0,5700:0
5ghz-5mhz-power-channels=5180:0,5185:0,5190:0,5195:0,5200:0,5205:0,5210:0,5215:0,5220:0,5225:0,5230:0,5235:0,5240:0,
5245:0,5250:0,5255:0,5260:0,5265:0,5270:0,5275:0,5280:0,5285:0,5290:0,5295:0,5300:0,5305:0,
5310:0,5315:0,5320:0,5500:0,5505:0,5510:0,5515:0,5520:0,5525:0,5530:0,5535:0,5540:0,5545:0,
5550:0,5555:0,5560:0,5565:0,5570:0,5575:0,5580:0,5585:0,5590:0,5595:0,5600:0,5605:0,5610:0,
5615:0,5620:0,5625:0,5630:0,5635:0,5640:0,5645:0,5650:0,5655:0,5660:0,5665:0,5670:0,5675:0,
5680:0,5685:0,5690:0,5695:0,5700:0
2ghz-10mhz-power-channels=2412:0,2422:0,2432:0,2442:0,2452:0,2462:0,2472:0
2ghz-5mhz-power-channels=2412:0,2417:0,2422:0,2427:0,2432:0,2437:0,2442:0,2447:0,2452:0,2457:0,2462:0,2467:0,2472:0
In 2.4, the standard channels (20Mhz) overlap.
With 10Mhz, it seems that MT eliminated all the non-orthogonal channels, so that everything that can be selected is actuall usable. Under 5Mhz, they are all back, since they are now completely orthogonal.
20Mhz wide is selectable in 5Mhz increments, as per 802.11b/g standard.
10Mhz wide only allows 10Mhz increments, thus giving you only half the possabilities of 5Mhz or 20Mhz.
5Mhz wide is back to the 5Mhz increments.
In 5gig, this is not the case, as the defined 802.11a channels are 20Mhz wide, and in 20Mhz increments. Thus, in 5gig, 10Mhz gives you twice the channels, and 5Mhz gives you four times.
Personally, I would rather have more choices, with as fine a granularity as possable, even so far as to allow the 2.5Mhz steps that Atheros is capable of.
–Eric
Thats correct, I am also interested in 2,5MHz increments - for better sector control. What I am interested really in is increment by 1MHz, for example 7 MHz channel or 14MHz channel and 28 MHz channel
Thats correct, I am also interested in 2,5MHz increments - for better sector control. What I am interested really in is increment by 1MHz, for example 7 MHz channel or 14MHz channel and 28 MHz channel
you all are mixing two things. 5Mhz channel width and 5Mhz channel selection step are different features.l
Right, I wouldn’t expect any more channel width options, I think the only possabilities with the Atheros chips are 5/10/20/40 Mhz. More would be nice, but I don’t believe MT can do anything about that. Perhaps Atheros is hiding something in their HAL, but I doubt it.
As for the stepping, at least some of the Atheros chips can do 2.5Mhz, but I’ve never seen anything implement that. Would be nice though, the more flexable the better.
–Eric