Talking about air gapped hacking... Airspy R0, R2, Mini and Airspy HF+ can be used as a high performance SDR receiver capable of streaming separate chunks of the spectrum to multiple clients over the LAN or the Internet.

Windows SDR Software Package (Change log)

Contains:

• SDR# x86 rev 1596

• Airspy Calibration Tool

• ADSB Spy rev 37 – High Performance ADSB Decoder (Requires firmware 1.0.0-rc7 or better)

• Spectrum Spy – Spectrum Analyzer

• Astro Spy – Radio Astronomy Utility for Hydrogen Line Spectroscopy

• SPY Server – Multi-client SDR Server with DDC

http://airspy.com/download/