Does anyone know the max number of connections the Alfa AWUS036NEH would support. i have it connected to a RPI listening for probe requests to count devices and recently tried it at a location where i beleive there was around 400 - 500 devices passing by every min or so. Normally when there is only a 100 or so it seems to be really acurate but for this event the numbers seemed way off.

I'm wondering if there were simply to many connections at any one time for the WiFi adaptor to handle. The interface is set to only scan a single 2.4 Ghz channel so i'm thinking next time run three interfaces on channels 1, 6 & 11.

Any pointers?