In this simple demo, we show how a LimeSDR Mini and LMS8001 Companion can together be used to observe signals up to 10 GHz and beyond via general-purpose SDR software. In this case, the GQRX software is capturing the down-converted 10.27 GHz gunnplexer signal from the LimeSDR Mini. The LMS8001 Companion Board was configured via its GUI to generate the intermediate frequency fed into the LimeSDR Mini.