KVCK, at 1450 AM, broadcasts a monophonic signal using the standard monophonic AM modulation scheme. The music feed to the station from its content provider, however, is stereo, and KVCK routes only one channel of that feed to its transmitter. So for any content that provides fully panned mix to the missing channel, no sound reaches the listener.
This problem has existed for decades, the station has been notified many times about it by email and in writing, and yet it persists. The solution should be as simple as a stereo-to-mono cable or mixer, or, if the content is provided digitally, by a software setting or a call to the content provider.
That this has never been corrected comprises an interesting mystery with regard to KVCK, and makes it an unusual DX catch for BCB DXers.