What could cause a constant milligauss reading where there never was one?

[Master Oblivious]

Nah we already talked about how I don't buy the ghost stuff on the last thread I made about EMF.

I was thinking more along the lines of some shit like 5G or some other tech... no idea.

Since att started singular and had their phones; they've interfered with electronics. 
Right before a call would come in, back in 2007, you'd hear a series of "clicks" on your
speakers (mine were connected to my computer but no sound coming out, just the cell phone
call interference)