802.11n

Ummm… That announcement coming this decade??

For goodness sakes, you had working prototypes at the US MUM… Ubiquiti had stocked the supply lines with nice n-capable gear. Now you’ve got the Atheros source code for supporting their N-capable chipsets. Short of someone coming down there and writing it for you, what else could you possibly need to produce this???

the 802.11n standard is changing all the time. first there was draft one, now there is draft 4 or 5 even, and they are not compatible. annuncement coming arount MUM time as usual

The performance of 11n depends on the number of antennas attached to the radio using MIMO technology, the curent draft n supports up to 3xMIMO, for that atheros produced 3 ant connectors in the 11n cards as they in SR71 “as far as I expect” , but the final release expect to have 4xMIMO to outcome a throughput up to real 400mbps not just air rate, but that means you really need 4 antennas in each direction :smiley: with a sharp signal like -50 or something.

From "Next generation wireless lan book " “Eldad Perahia and Robert Stacey”

" The IEEE 802.11n standard amendment is expected to be completed with final IEEE
802 working group and executive committee approval in March 2009. The IEEE standards
board is expected to approve the amendment in June 2009. Publication of the
amendment would occur shortly after "

AT LAST !!!

802.11n support!!
Announcing two new MikroTik RouterBOARD
products - R52n and R2n that both support wireless
802.11n standard in addition to 802.11abg or 802.11bg
(in case of R2n). Finally it’s possible to achieve
200Mbps actual data throughput over wireless links!

Full article: http://www.mikrotik.com/pdf/news18.pdf

Prices now are 39$ & 49$ for the MT n cards. - http://www.routerboard.com

Can anyone post an actual config of the thing, running those 200Mbps like a charm ?

Depends on distance, antennas (number of) … See here: http://forum.mikrotik.com/t/802-11n/28753/139

Maybe it will be easier to achieve max throughput with a x86 (now available for cheap second hand…) sytem with gigabit ethernet NICs on one side and PCI->miniPCI adapters with the R52N cards connected with two or dual antennas on the other side. CCQ 98-100%, Band: 5GHz-onlyN, nstreme - on, second channel active, Distance 500m - you will get a hell of a link for this price. You will need RouterOS v4 with Updated License.

Just want to know, is the R52N draft N or final?

Thanks