Hello Bin,

My group considered doing this about 4-5 months ago.  Things may have
changed now, but at that time it was not possible (or at least not straight
forward to me) to get the gain from the AGC.

>From my understanding, the AGC (automatic gain control) makes getting RSSI
readings difficult because your signal is getting amplified before it gets
sampled.  So if you don't know the gain the AGC sets (which varies with
time) it's hard to do RSSI.

Devin

On Tue, Apr 27, 2010 at 12:04 PM, bin zan <zanbin2...@gmail.com> wrote:

> Hello,
>        Anyone know if it is correct to roughly estimate RSSI information
> from I/Q values. For example is it correct to say RSSI of a message is equal
> to 10log10(I^2-Q^2). Otherwise, what is the correct way to obtain RSSI value
> in gnuradio?
>
> Thanks,
> Bin
> Winlab
>
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