What is the difference between RSSI measurements and the dBm values that I record from the spectrum analyzer? Yes, I wrote that, and I still think it applies, so: Received Signal Strength always relative to some signal model, incorporating considered bandwidth, assumptions on the modulation scheme, duration of transmission, generally: It's a estimation of received signal strength based on some property of the received signal. If I cannot relate these two measurements by a correction factor, is there a way to obtain the receive signal power measurements (in dBm) programmatically (GNUradio perhaps)? (NOTE: I don't believe there is any way to obtain the receive signal power measurements through the library that contains the function I linked above).Is it possible to relate these RSSI measurements to the receive signal power levels that I record from the spectrum analyzer?.What is the difference between RSSI measurements and the dBm values that I record from the spectrum analyzer?.Now, I think that comparing the receive signal power levels on the spectrum analyzer with the RSSI measurements that function provides is not the right way to come up with a correction factor. Modulation scheme, duration of transmission, generally: It's aĮstimation of received signal strength based on some property of Signal model, incorporating considered bandwidth, assumptions on the Received Signal Strength always relative to some I also read this from a response to a USRP user's question about RSSI measurements: RSSI is the relative received signal strength in a wireless environment, in arbitrary units.
My plan is to come up with a linear correction factor to relate RSSI measurements to the receive signal power measurements from the spectrum analyzer. I am attempting to calibrate the receive signal power measurements (in dBm) that I can visually record from the spectrum analyzer with the RSSI measurements (in dB) that are output into a file by a script (I read them from the text output of the ofdmflexrframe_rx function). This is how I am reading the receive signal's magnitude. NOTE: I have the transmitting USRP connected to a series of attenuators (so that I don't overwhelm the spectrum analyzer) and then to an RF splitter - one output is connected to a spectrum analyzer and the other output is connected to the receiving USRP. I am sending packets at a specific frequency and with a specific gain from one N-210 USRP to another of the same model.
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