Thanks for the info, but 1200 bucks? Are there any bridges that automatically adjust themselves for longer slot times? for maybe less cost?
This is a versin 2.2 of the wap11, the TI chipset, not the atmel (v2.6). Would be less costly to get two version 2.6 wap11 and flash firmware. ...What firmware version? On Fri, 4 Jul 2003, Dimitrios Sidiropoulos wrote: > Andy, > > BreezeNET DS.11 by Alvarion will do that for you. > IDU/ODU, PoE, High Power up to 26dB (aprox 500mw), Adjustable Tx out all > the way down to -4dB. You can use that pupy with a 24 dB Grid dish and be > legal even in the 100mw EIRP places like ETSI regulated countries. > Street prices about $1200 per unit though. > > What version is your WAP11 ? I know Atmel will release a f/w that allows > you to enable short/medium/long links timing. > > Dimitri > > http://www.vernet.gr > > > Andy Barlak> > > > > The wap11 link I run has poor performance due to a preset ack window > > of 20 microseconds. This causes many retries on each packet sent, filling > > the medium with retries, penalizing performance. > > > > The link is 7km, or 47 microseconds in round trip time, exceeding the > > 20 microsecond window and causing retries. I need to have a bridge with > > a configurable "ack window". > > > > What would be an AP/bridge with such a configuable parameter? > > I found a manual for a Fedtech Communication FW2001BRS / FW2001BRC > > http://www.wireless.net.tw/fedtechbridgemanual.htm > > > > "ACK window > > This is the waiting time for the acknowledgement, again expressed in slot > > time. 1 unit is 1slot time (roundtrip) and represents 3 km. Increase this > > number for large distances. 2 represents 6 km, 3 represents 9 km etc. It > > will not harm the link if the ACK window is larger than the corresponding > > distance. To fine tune the throughput, increase the number, measure the > > throughput, and then start to decrease the ACK window while monitoring the > > throughput." > > > > The company seem lacking in retailers. > > > > Anyone using a bridge/AP with the ack window configurable? > > what models? > > > > ------------------------------------------------------------------------------- > > Andy Barlak > > > > On my desk I have a work station. Trains stop at train stations. > > > > > > -- > > general wireless list, a bawug thing <http://www.bawug.org/> > > [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless > > > ------------------------------------------------------------------------------- Andy Barlak On my desk I have a work station. Trains stop at train stations. -- general wireless list, a bawug thing <http://www.bawug.org/> [un]subscribe: http://lists.bawug.org/mailman/listinfo/wireless
