That wasn't it. I'm pretty sure there was an "F" and an "R" as two of the other three letters.
There is a station out of Maine, I believe and one out of Nashville. One is WWCR.
That was WYFR - Your Family Radio.
No “F”, but WWRB is still going strong.
The actual call sign for the “Voice of the Andes” is HCJB. Their antenna farm is in a very interesting place...it seems where they have it allows a massive footprint that goes a lot farther than normal for a SW signal.
Back until the mid 90’s, I had a Radio Shack DX-60 multiband receiver. It was dual power (cord and battery) and had a jack in the back to hook in a Motorola-style connector. I had an old ‘63 Chrysler Newport as my first car, and it had a 6-FOOT long whip antenna. After I took the antenna cable and plugged it into the back of the DX-60, I could drive down the street in broad daylight and listen to the top-of-the-hour news...on the BBC.
My greatest DX was picking up RSA on a clear summer night in Spokane, WA on a frequency that the World Radio-TV Handbook (the Bible of the DXer) said was solely from the RSA transmitter site in South Africa. Half way around the world and clear as a bell.
I now have a Grundig FR-200 3-way power (Battery, cord, and hand-crank dynamo for emergencies). About 3 weeks after Hurricane Katrina, I was tuning about in the 41-meter band and came across a simulcast of a New Orleans radio station that was giving information to citizens of the city scattered about the country. I think one of the religious stations on SW offered to do this so far-flung citizens of New Orleans could find out what was happening at home. It was eerie to listen to.