I got it up and running, power range from -58 to -68, usually right around -64. The best speed test I got was almost 20mb, that was at a 20mhz width.
I changed it to 40mhz with and it seemed to get lower, lucky to get anything past 10mb. The connection at the modem is 100MB.
I would like to get at least 50MB out of this. Is that possible at 300ft? Or too much noise? Or something else? As others have said, I wish UBNT had bandwidth test on the APs. I can ping the AP or the rotuer behind it and get 1ms to 4ms on average.