07-28-2010 01:03 AM - edited 07-03-2021 07:01 PM
HI ,
What is the tha average ,minimum and maximum values of SNR(Signal to noice ratio ) and RSSI (Received Signal Strength Indicator ) in cisco access points .
And how it is depends on the client connectivity with the Access point.
Thanks & Regards,
Sinjish.K
01-24-2019 06:40 AM
09-22-2020 10:40 AM
This is RF theory in a nutshell. Very well articulated Kayle
03-17-2022 09:04 AM
Pls correct about SNR as below:
S+ -N is a wrong math equation. S-(-N) is corect equation _ -55- -95 = -55+95=40db
If your signal and noise measurements are already in dB form, simply subtract the noise figure from the main signal: S - N. Because when you subtract logarithms, it is the same as dividing normal numbers. The difference of the numbers is the SNR.
07-28-2010 07:15 AM
Hi Kayle ,
It is highly explanatory and really helpful.
Thanks a lot
Thanks & Regards,
Sinjish.K
02-17-2015 05:51 PM
The received signal strength indicator (RSSI) represents the value in dBm of the signal strength at which a wireless packet is received. Figure 4 shows the scatter plot of approximately 200 RSSI values received at the WSM and primary radio collected from different points. The primary radio is the internal radio of Cisco Aironet 3600i.
Figure 4 shows the high degree of correlation between the RSSI for the two radios. On average, the RSSIs received by the primary radio are about 2 dB stronger than the corresponding RSSIs from the WSM. This clearly indicates that the WSM has similar coverage to that of the Cisco 3600i access point.
02-27-2015 10:41 AM
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