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, 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.
Here’s a 20-second fragment of Marvin Gaye’s "Heard it Through the Grapevine"
First, here’s how it should sound. Pay attention to the ladies in the chorus from 13s to 20s:
Now, here it is from KCVK, on the afternoon of September 28th, 2016… listen again at 13s to 20s:
KVCK is like one of those double-struck pennies from the US mint. Very rare, and not a very good product — but interesting!