I just found a spectrum analyzer plot I did back in 1990 of New York
City's FM broadcast band. Scanned it in, and posted a JPG file of it
in the newsgroups alt.binaries.pictures.clocks and a.b.p.misc
The clocks NG is low volume, so you're more likely to find it there
in a few days from now. It's there as I post this article now.