Those seem to be wildly different phenomena. The “hearing radar” mentioned frequencies of 1, 3, and 10 GHz(!?!?), while “The Hum” is between 32 Hz and 80 Hz, modulated from 0.5 to 2 Hz.

My including the link was not suggesting the thing reported was true, rather, it was the only thing I quickly found suggesting anyone hearing electromagnetic frequencies of any kind.

In the hum, most thinking is either physical noise, or resonance. That said, one paper linked from Wikipedia does have this:

“Analysis of the largely anecdotal data that are available at the present time suggests that the most probable explanation is that some people have the capability to interpret radio transmissions at certain wavelengths as sound. It is well established in the scientific literature that people can hear electromagnetic energy at certain frequencies and peak power levels.” — https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.51...

However, while this could validate both phenomena as being perceivable by some, I do not think this is why Pop-Sci made their chart as they did. I stand by my objection.