R.F. Burns said:
To the best of my knowledge, WJDM was one of two stations originally granted a license to populate the expanded band running 10-K Day and 1-K post sunset. After a five year period they were to turn of their 1530 signal. The point of the expansion was in part a method to lessen the interference to the already over populated AM broadcast band. WJDM was special though. Elizabeth was the largest population center without a full time broadcaster and the move to 1660 was done to alleviate that. Of course we all know what happened. Not only didn't WJDM turn off its 1530 carrier, it put syndicated programming on the new expanded band signal, not serving the population of Elizabeth, NJ with anything resembling local content. They were also given permission to operate 10 K day & night into a directional antenna system. Again, changing the rules they had already put in place. There is way too much noise on the AM BCB and there are too few stations on the expanded band, making it appear to be an experimental band where hobbyists broadcast along with low power travelers information stations.