On Tue, 17 Dec 2013 21:19:40 -0700, Tony Hwang wrote:

Can you calcualte receiver sensitivity of -92dbm
comes out (?) volts?

I never deal with volts when I'm working with the radio.
I always deal in power. So, I don't know what the volts are,
but, I do know this about -92dBm:

0) First, I always google "dbm to watts".
1) The first hit is always a great time-saving calculator.
2) That's http://www.rapidtables.com/convert/p...Bm_to_Watt.htm .
3) So, -92dBm is about 631 femtoWatts (which is pretty small).
4) I don't know how to convert that to volts though.

On what modulation mode are we talking about?

I'm not sure if I understand the question, but, the radio operates
in the 802.11n MIMO channel 10 (with vertical & horizontally polarized
antennas) that have a 3.8° to 6.8° beamwidth (which is pretty narrow).

NOTE: The narrow beamwidth is how the antenna gets all that gain in
the first place. You can't create or destroy power, so, I'd have a
wider beamwidth with a lower-gain antenna. This is a pretty high-gain
antenna, so, the beam width is pretty narrow, but, since it's pointed
at the WISP access point a few miles away, it doesn't have to be broad.