For Option 1, with the dongle attached to a Raspberry Pi and using Buster as the Raspbian OS flavour of choice, note that the package name under Buster is "python-pil" instead of "python-imaging" - otherwise everything else appears to be correct, and generates the nice pictures the same as the other examples above.
For my current location I've got very strong GSM signals, and have had very good results (out to the heywhatsthat limit anyway) with the RTL-SDR triple-filtered LNA, with both the RTL-SDR dongle and Airspy Mini receivers.
For my current location I've got very strong GSM signals, and have had very good results (out to the heywhatsthat limit anyway) with the RTL-SDR triple-filtered LNA, with both the RTL-SDR dongle and Airspy Mini receivers.
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