* [ath9k-devel] Question on SR71-A and 3x3 MIMO that can only do 300Mbps? @ 2014-05-14 22:50 Ben Greear 2014-05-15 0:11 ` Adrian Chadd 0 siblings, 1 reply; 2+ messages in thread From: Ben Greear @ 2014-05-14 22:50 UTC (permalink / raw) To: ath9k-devel We shipped a few SR71-A systems a long time ago, and we always thought they were 3x3 MIMO. Which, datasheet claims is true. But, it also claims max speed of 300Mbps and only up to MCS-15. Our user noticed this limitation in their testing. It appears I have been under the mistaken impression that 3x3 MIMO meant MCS-23 support also existed? http://dl.ubnt.com/sr71a_datasheet.pdf Thanks, Ben -- Ben Greear <greearb@candelatech.com> Candela Technologies Inc http://www.candelatech.com ^ permalink raw reply [flat|nested] 2+ messages in thread
* [ath9k-devel] Question on SR71-A and 3x3 MIMO that can only do 300Mbps? 2014-05-14 22:50 [ath9k-devel] Question on SR71-A and 3x3 MIMO that can only do 300Mbps? Ben Greear @ 2014-05-15 0:11 ` Adrian Chadd 0 siblings, 0 replies; 2+ messages in thread From: Adrian Chadd @ 2014-05-15 0:11 UTC (permalink / raw) To: ath9k-devel Nope. It's a 2x2 device with 3x3 radios. It's doing transmission, scrambling and MIMO processing on the incoming data, but it's only doing 2 spatial streams. (Yeah, I was bitten by that in my first 802.11 contract. I didn't really know much about 802.11n then.) -a On 14 May 2014 15:50, Ben Greear <greearb@candelatech.com> wrote: > We shipped a few SR71-A systems a long time ago, and we always thought > they were 3x3 MIMO. Which, datasheet claims is true. But, it also claims > max speed of 300Mbps and only up to MCS-15. Our user noticed this limitation > in their testing. > > It appears I have been under the mistaken impression that 3x3 MIMO > meant MCS-23 support also existed? > > > http://dl.ubnt.com/sr71a_datasheet.pdf > > Thanks, > Ben > > -- > Ben Greear <greearb@candelatech.com> > Candela Technologies Inc http://www.candelatech.com > > _______________________________________________ > ath9k-devel mailing list > ath9k-devel at lists.ath9k.org > https://lists.ath9k.org/mailman/listinfo/ath9k-devel ^ permalink raw reply [flat|nested] 2+ messages in thread
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