Thank you staslabs for your input. How are you using theses cards? I'm going to use them for short-range wireless links, so I don't think that I need professional radio cards. This is also a non-commercial project carried out entirely by volunteers and zero budget. Someone is going to pay for it, and that is probably me. With Mikrotik licenses, Radio Cards, Antennas, Motherboards, CPUs, DDR Modules, Solid State Devices, Cases and Power Supplies it will cost arount $20 000.
AP on PIII 700, Intel 815 Chipset, Intel 100 Pro network card, EnGenius EPI-3601S, 3.22 MT on 128 mb "disk on module".
default power !!!
wireles package - not wireless-test!!!
AP WDS
12 dbi 180 degree sector antenna on 17 th floor --- 7.5 km ---- 27 dbi parabolic greed antenna - dlink 550G card on 6 th floor wds client
-78 RX -69 TX signal strenght from AP
TX/RX CCQ 98/73 from AP