as we can observe values for rssi similary can we observe values of snr and thershold values in iio scope or is there any other way to know these values.
i am using fmcomms4 source sink from gnuradio.
There are a few SNR estimators in GNURadio, but they are generally dependent on modulation. I would recommend reading the source code and reference papers of those blocks to understand how they work.
SNR measurements can be a bit handwavy in practice since true knowledge of the statistics of environmental noise is unknown. However, the more data you can collect the better your estimates will be.
SNR is typically computed. I don't think there is a generic measurement block for it in GNURadio.
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