Total posts : 45366
AM reception inside my home, except for that transmitted by my indoor transmitter, is not possible because of electrical noise. This noise was present here before CFLs were in use and comes primarily from light dimmers.
The old tech’s trick of checking that an oscilloscope probe is working of touching the tip of the probe is enlightening. In the “good ole days” one would see a fairly good sine wave but this is not so today. There are all sorts of odd waveforms mostly synchronized with the the power line frequency displayed.
My solution for my ham and short wave interests is to use an outdoor dipole and I can then receive AM and SSB well, but since there is nothing on broadcast radio which I care to listen to I wouldn’t bother with an outside antenna except for needing it for my other interests.
I am beginning to wonder if, except for the broadcasters, many care about AM reception or interference. As mentioned above, IBOC amounts to the broadcasters interfering with themselves and ignores that even digital radio is not immune to interference.