It is possible to collect this data out of thin air using your own radio receiver (e.g., in the form of SDR), although your receiver will see the data only in a certain range of your location. There are platforms for sharing and exchange of this data. Some of these platforms invite...
In theory, the Prostick + Filter should operate better in environments with very strong out of band signals (any signal outside of 1090 MHz). And the Prostick Plus should operate better in environments with weaker out of band signals. The theory is that since the LNA is placed first in ...