I have worked a satellite with a Baofeng (and Yagi antenna), so at least one works. I stopped using mine because I don't have a spectrum analyzer and was told

I have worked a satellite with a Baofeng (and Yagi antenna), so at least one works. I stopped using mine because I don't have a spectrum analyzer and was told by Reddit that they send a lot of power out of band, which isn't something I care to do. (I have a VHF module in my KX3 that meets my VHF needs. Mostly. Would like even better frequency stability for meteor scatter, WSPR, etc.)