features:
- gain control for LNA & VGA
- frequency error correction
- automatic baseband filter
- up to 20M sampling rate
limitations:
- no DC offset correction implemented (yet)
- no RX preamplifier control (disabled by default)
- high sampling rates may not work on slow machines
For use with the rtl_tcp utility acting as a spectrum server.
The "empty" rtl_tcp= device hint might be used to connect to rtl_tcp
running on local machine.