On Thursday 20 Jun 2013, Felix Fietkau wrote: > On 2013-06-20 12:26 PM, David Goodenough wrote: > > On Wednesday 19 Jun 2013, Ben Greear wrote: > >> On 06/19/2013 03:56 PM, Adrian Chadd wrote: > >> > .. just keep in mind that adjacent high power transmitters can > >> > actually leak enough RF to trigger ADC saturation and thus the device > >> > may actually not try to decode anything. > >> > > >> > Thus, whilst your TX is TXing, the RX side may be unhappy. :-) > >> > >> We've had decent multi-NIC throughput when there is a mostly-solid > >> aluminium chassis plate between the NICs, and when one is on 2.4 > >> and the other is on 5Ghz. > >> > >> Pretty much anything else is pushing your luck though :) > >> > >> Ben > > > > The only place I have noticed that do this with wifi kit is Microtik > > who say they can do setups like this - but as usual with them there is > > no indication of how it is done under the covers. > > They're doing it with hacked up proprietary protocol modifications. > > So I get why you would want to do combine two links to get full-duplex. > But why would you want to mess around with things like ACKs? > > - Felix Most of my links are quite long, so removing any turnaround had got to be a good thing (hasn't it?). I presume that every time the link turns around you have to turn off the receive path (or at least disconnect it) and then power up the transmitter, and allow time for the receiver at the other end to sync. Then at the receiving end if it was transmitting before (this is point to point) it has to shut down the transmit path in an orderly fashion so that it remains loaded while active. Surely that has to take a significant time?
By quite long I am talking up to 7km. David _______________________________________________ ath9k-devel mailing list ath9k-devel@lists.ath9k.org https://lists.ath9k.org/mailman/listinfo/ath9k-devel
