https://archived.sensorgnome.org/How_do_I_build_a_SensorGnome/ https://archived.sensorgnome.org/How_do_I_build_a_SensorGnom... This is using a Funcube Dongle,

https://archived.sensorgnome.org/How_do_I_build_a_SensorGnome/ https://archived.sensorgnome.org/How_do_I_build_a_SensorGnom... This is using a Funcube Dongle, which if I recall has much better noise performance than the normal RTLSDR devices.