Scott,

Good question. The most powerful radio on the Pacific Coast in 1941-1942 was
located just one mile south of the Nazi radio site. During the attack on
Pearl Harbor, this was the only radio station powerful enough to pick up the
signal from Hawaii. They also had a radio and sound laboratory that sent
constant transmissions, micro waves, radar and even X-ray transmissions
during the entire war. There was an OSS code school that also sent signals.
On the other end of the spy spectrum, there would have been a lot of
transmissions to pick up. Sorting all that out could have been a mess. Maybe
the guy had the set to simply receive data that he passed on to agents at the
local laundry?

Ron