The Aaronia UBBvDC20 External RF Pre-amp DC - 20 GHz works with any brand of spectrum analyzers and was designed to fit directly to any Aaronia Spectran spectrum analyzer model. Broadband sensitivity increases by up to 15dB when using the preamp. The high compression point of the UBBv-DC20 (almost 100 milliwatts) allows it to boost the power of small micro transmitters.