I only know what I've read about early WMID and WOND, my family moved down to Somers Point in 1970, and I only ever listened to WIBG and WDAS-FM (Hyski's Underground) before we moved.
Jersey Shore radio was pretty strange to me. WMID stopped everything at 9 PM each night, and had a religious show called "Joytime" and an hour or two of Classical music on the weekend with Victor Travis (Dr. Victor Ruby) otherwise, WMID seemed to have the WABC approach, and was pretty good.
On FM, about all I could get was WMGM, weak, in mono, but the stereo light flashed on peaks of overmodulation. There was dead air all of the time, and I started calling to tell them, and they would fix it, sometimes rewinding the tape right on the air, and playing the same songs over again. I experimented, and found that if I didn't call, it would NEVER come back on. hah
When I started working there a few years later (when I was 18) I saw the setup. It was amazingly crude. Two home type reel to reel decks, a cart machine, and 4 mis-matched crooked knobs and a meter and headphone jack on a panel. A pot for each reel and the cart, and a simulcast of WOND. The headphone jack was the ONLY way to monitor the station in the building. No speakers, no FM radio or anything.
Kevin Fennessy is the Atlantic City/Wildwood radio guru. If he still reads the forums, he'll jump in.