I was testing two AP 350 on a clear (2,4Ghz radio free) track. The antennas used were two 24db grids made by "California Amplifier".
So, here are the results:
4 kms 95 - 100%
7 kms 70 100%
9 kms 0 0% !!!
Plain EIRP calculations or radio standards simply cannot explain this? I can only think of one thing the Access Points have some integrated range filter. Any other suggestions? The anntena aligment was almost perfect on both locations.
I would gladly discuss that with a TAC engineer but I am located in Bulgaria and I am not quite familiar with contacting and talking to a TAC specialist.
There's a difference between what's *possible* and what's *supported*.
The 1 mile max AP-to-Client spec is common to many manufacturers, regardless of antenna type and power. The issue is the delay spread in the coding (which varies for different data rates), not just transmit power or receive sensitivity. Therefor, for anything beyond the manufacturer's spec, you are on your own to risk exceeding the delay spread.
The figues you got were not stated as EIRP (if they were, I would have expected them to be in dBm, not %). The client's ability to show signal strength is dependent on its ability to associate with the AP. Most likely, you lost your association somewhere between 7Km and 9Km.
So, you are correct that the signal strength did not fall off from 70% to 0% over the last 2Km, but the total distance was great enough that you were no longer able to associate and therefor showed no signal.
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
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