The calibrated signal generator output on the TinySA Ultra is a great tool to calibrate or check your S meter and also very useful for determining and/or checking your receivers sensitivity. It also provides modulated AM and FM modulated outputs(AM amplitude as well as modulation frequency adjustable, FM deviation adjustable). The TinySA Ultra is a great tool for checking a transmitters harmonic content assuming you have appropriate attenuators. The TinySA Ultra is useful for viewing and sniffing out sources of RFI. The tinySA Ultra can view a much much larger spectrum than a SDR receiver. The TinySA Ultra can measure a transmitters output level assuming you use appropriate attenuators, the TinySA Ultra can be used to make accurate field strength measurements if you know the antenna factor. I’m sure there are many other useful options/features but the ones I listed are common features that I use all the time. The TinySA can do most of what the TinySA Ultra can do but it’s more limited.
