Danny D'Amico wrote:
On Tue, 17 Dec 2013 18:42:50 -0800, makolber wrote:

So what's the problem?
How much noise would you consider normal?
Thermal noise is -174 dBm per Hz
What's the bandwidth and noise figure of your receiver?
Mark

Q: What's the problem.
A: It's my understanding that every dB of noise reduces the dB of signal
by that amount. The less signal, the slower the Internet speeds.

Q: How much noise do you consider normal?
A: I have no idea. That's why I'm asking! Googling, I find you "should"
have about 20dB of headroom between noise & signal. My signal is about
-52dBm and my noise is -88dBm, so I'm within that range, but, my
signal to noise ratio is -52dBm - -88dBm = 36

Q: What's the bandwidth & noise figure of your receiver?
A: Googling for the "Rocket M2 bandwidth gain specifications", I find
this datasheet for a "RM2" receiver & "2G-24" 24dBi dish reflector:
http://www.balticnetworks.com/docs/rm_ds_web.pdf
Which says, on page 6:
Rocket M2, Operating Frequency 2412-2462 MHz
2.4 GHz RX POWER SPECIFICATIONS
llg = 1-24 Mbps = -97 dBm min +/- 2 dB
11g = 36 Mbps = -80 dBm +/- 2 dB
11g = 48 Mbps = -77 dBm +/- 2 dB
11g = 54 Mbps = -75 dBm +/- 2 dB
11n = MCS0 = -96 dBm +/- 2 dB
11n = MCS1 = -95 dBm +/- 2 dB
11n = MCS2 = -92 dBm +/- 2 dB
11n = MCS3 = -90 dBm +/- 2 dB
11n = MCS4 = -86 dBm +/- 2 dB
11n = MCS5 = -83 dBm +/- 2 dB
11n = MCS6 = -77 dBm +/- 2 dB
11n = MCS7 = -74 dBm +/- 2 dB
11n = MCS8 = -95 dBm +/- 2 dB
11n = MCS9 = -93 dBm +/- 2 dB
11n = MCS10 = -90 dBm +/- 2 dB === this is my channel
11n = MCS11 = -87 dBm +/- 2 dB
11n = MCS12 = -84 dBm +/- 2 dB
11n = MCS13 = -79 dBm +/- 2 dB
11n = MCS14 = -78 dBm +/- 2 dB
11n = MCS15 = -75 dBm +/- 2 dB

Given that my Rocket M2 is 11n MIMO, and on channel 10, I'd say
the receiver sensitivity is from -88 to -92 dBm.

Hmmm... I just noticed, that this is the same (essentially) as
my noise figure. But, I'm not sure what that tells me.

Hi,
First do you understand what decibel means in the context of voltage,
current or power? Can you calcualte receiver sensitivity of -92dbm
comes out (?) volts? On what modulation mode are we talking about?