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.
>
>
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