Back in Queens NYC, early 60's, WPOP was one of the first stations we grammar-school kids heard during our earliest tries at DX off a big Zenith AM-Phono console. Heck -- we'd never even heard the term 'DX' back then.
Subsequent years opened our ears further to things like directional patterns and power drops, but I do recall a bunch of us with transistors listening to WPOP pretty well at times on their propellor-blade night pattern. WMEX 1510 and WPTR Albany were others like that. The largest, of course, was WKBW. Girls and guys alike would tune around to those stations even though we had four NYC rockers.
Late 60's a few of us wound up at some place in Hampton Bays, waaaay out on Long Island, and heard WDRC playing in a few local places .... diners, lobbies. We thought that was incredible, until realization that it was their *FM* -- the only Top 40 available at the time out that way.
'Deeeeh One-Oh-Three' had a mammoth signal that was easily heard all the way East on Long Island from the Nassau-Suffolk line. I saw a couple of ratings books when they'd show with like a 0.5 in the Long Island book during their AoR years.
WPLR New Haven (AoR) and WICC *AM* Bridgeport also would show, beneficiaries of that North Shore and Eastern Long Island coverage.
Barry Granti's overnight AoR show (simulcast on 1360 and 102.9) was a terrific listening oasis for this DXer, for in between those bottom- and top-of-the-hour station IDs.