Grover was a Radio Ham

[alice malice]

What is this? For more than 30 years, shortwave radio bands around the
world have been haunted by "numbers stations" on which anonymous
voices recite strings of numbers and letters. These stations transmit
in various languages, following strict schedules, but they never
identify themselves or give any hint as to their purpose. It seems
likely that they're run by government agencies, sending messages to
spies in the field using a prearranged code. But why does the station
known as "The Buzzer" send out buzzing sounds on 4625 kHz
continuously, throughout the year? And why on earth does the station
recorded above, known as the "Swedish Rhapsody," transmit the sound of
a music box and a little girl's voice?

Numbers stations are beyond the reach of the Freedom of Information
Act because (presumably) secrecy is essential to their missions, and
in fact in the United Kingdom it's illegal even to listen to them. So
we're unlikely to learn the full story anytime soon.

http://www.futilitycloset.com/
-
Pynchon-l / http://www.waste.org/mail/?list=pynchon-l