alfieradioguy said:
Les and Skynet,
I recently saw the head of the F.C.C. on CNBC. Basically saying, upon complaint the F.C.C. will investigate and clap down, fine, violators. 990 should file a FORMAL COMPLAINT with the F.C.C.
990s signal should be free of interferance.
THE F.C.C. can make that happen.
The problem is you're looking at the situation backwards, though I'm sure well-meaning. 990/Providence is the latecomer to the frequency. The others on 980, 990, 1000 were all there much earlier! Bliss Properties got the original WLKW shoe-horned into a tiny little available geographic area, going on-air in 1959. The directional pattern, as licensed, and the wimpish night power, are required to live with any interference from those who were there first. 990/Providence is required to maintain licensed parameters to protect those stations; any lapse that causes interference to the pre-existing stations would bring down The FCC (upon complaint) but it would come down on 990/Providence.
At the time...and I worked at the original WLKW not long after they first signed on...was that there were two approaches to putting any signal on the air in Providence on 990. Remember, the FCC didn't license odd power levels in those days. Available were 250W, 500W, 1,000W, 5,000W, 25,000W and 50,000W (Watts). Somewhere around 400Watts, not an available value, would have worked from a rooftop antenna in downtown Providence but 250 was the max that would have been permitted. Alternative was higher power with a very tight directional pattern to protect pre-existing stations. Theoretically it might have been fewer towers at, perhaps 5,000 Watts but there was no real estate available close enough to the proposed City of License (Providence). Best workable was the Burillville site with 50,000 Watts and six towers (two rows of three). Besides, advertisers and agencies, back then, would swallow the 50-kW claim whole.
Ken Prior (son of R.I. radio engineering legend Tom Prior) was the first CE at (then) WLKW (may have been spelled "Pryor"....it's been years) Ken later went on to do all the engineering for R.I. Public TV (38).