All-New Portable Spectrum Analyzer 35MHz~4400MHz ADF4351 Handheld Frequency Tiny Tester HF UHF VHF 4.3 inch Screen Bnc SMA Port

Quality built and easy to use

This product gives the impression that it is a "better" version of a TinySA. While true, it has a better frequency range, it doesn't matter because it's sensitivity is terrible. It picked up a whopping 2 discernible spikes the FM broadcast band. I live in a suburban area that is mostly saturated with FM broadcast stations. It should have picked up much more activity.There is also no way to calibrate it, nor can you update the firmware. Definitely not worth the price. Returning.

It looks like it might well do what I need it for, but it comes with a very brief and poorly written instruction sheet and no apparent customer support number. So I'm clueless how to use it to best advantage.

It really only worked properly at 1x magnification. Beyond that, after I figured out the buttons, it was cooler than cool

Sent back for refund. Only got a blank white screen when activated.