I have reached out to their engineering staff.I would first prove the signal is real and maybe get a bearing on it. If it’s real call the station and ask to speak with the chief engineer and say it’s about a possible interference problem. Tell the engineer where you hear the signal, on what type(s) of equipment and what kind of antenna you are using. They will check it out and fix it if it’s their problem. If it’s generated outside their station they may or may not be interested in fixing it.
I had originally responded but decided to back track it and change how I respond to this. I may have been much harsher than I intended. I still think the comments made were out of line regarding broadcast engineers in general, having worked around many, and being one myself, I can assure you, we're not useless. Because of one bad experience, all broadcast engineers do nothing? I think your comment was out of line.