Re: History is the key!
Well said, Pirate Jim. Faced as we are with the state of terrestrial radio some 71 years after FM was invented by NJ's own Major Edwin Armstrong, it's easy to overlook the fact that when FM allocations were set, it was a gamble as to whether or not the new medium would go anywhere, literally and figuratively.
There were no practical FM car radios for years and years, so the reality of destructive interference from co-channels in NY and Philadelphia could not be gauged by a quick spin into the Watchung mountains or elsewhere. Of course, this is not to mention adjacent and second adjacent FMs that were impossible to separate without highly directional antennas and top-of-the-line tuners until the '60s and solid state technology.
The Commission's original allocations, it must be remembered, were not only keyed to the population centres of the time but politics and areas where commerce would conceivably support a radio station. Also remember, as recently confirmed in Alpine, NJ and the Armstrong "anniversary," that another FM band came before 88-108, and the handful of stations using that band, pre-war had the inside track on new allocations, post-war.
So, all these years on, we live with things like short-spacing and destructive interference between the likes of CBS-FM (whatever the format) and B101. There remain NO SIMPLE ANSWERS.
Rock On!
Rich Phoenix, President
N J R M