Steve:
I was studying one of the Data Dumps.
See the attached screenshot from which the Dump was produced.
Ignore my settings for the moment — and look at my noise floor of roughly -120 dBm.
Perhaps it is a function of your video display programming, but it seems to me that any data BELOW -120 dBm is superfluous and is of no interest.
Yet, the Dump contains a lot of data with dBm levels down to -160 dBm.
Check out my stupid sideways graph below. Easily one half (or more) of the Data Dump holds this superfluous data.
Any data left of -120 dBm on the X-axis is superfluous.
