Total posts : 45366
I would not recommend this particular device.
It took 3 tries for the vendor to get it right (i.e., getting rid of the distortion). And some never got it right.
I’m not convinced that its output was anywhere near 10 mw (it was supposed to be 100). Range was exceedingly poor, even using my continuously tuned amateur radio vertical (a few hundred feet).
I gave up shortly after that, and it sits somewhere in a box, gathering dust.