That can be found on page 8 of the Winter/Spring 2016 Visitor Guide. Look in the left column, its one of the Nov. 1934 entries.The radio station KNLO, Death Valley National Monument, is in continuous service with a schedule to March Field and also a daily schedule with Yosemite National Park. Letters are being received from all over the United States west of the Mississippi River stating that they had picked up this station and asking for pamphlets, maps, and information, on Death Valley National Monument.
That guide is currently available at the following link:
(Note: at some point in the future, that link will point to an updated version of the guide, not the version that has the quote about KNLO!)
I definitely have never heard of this. My initial Googling didn't find anything other than the mention linked above.
This brings several questions to my mind. Where this was the transmitter and antenna for this? In FC, or up on a mountain? And where did the programming originate from? Was there a little studio somewhere in FC?
If you know anything about this I'd love to hear more!