Yosemite Sam (shortwave)
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Yosemite Sam is the nickname given by DXers to a number station that first surfaced on December 19, 2004. It transmits on several shortwave frequencies in dual side band: 3700 kHz, 4300 kHz, 6500 kHz, and 10500 kHz. The nickname is taken from the Looney Tunes character Yosemite Sam, whose voice is played as part of the unusual transmission.
The transmission series
The transmission begins on one of the frequencies. Ten seconds later, it is repeated on the next higher frequency, and so on for a total of two minutes. The entire pattern takes precisely two minutes, and always begins seven seconds after the top of an hour.
Each transmission starts with a data burst lasting 0.8 seconds, followed by the voice of Yosemite Sam exclaiming: "Varmint, I'm a-gonna b-b-b-bloooow yah t'smithereenies!" The clip is taken from the 1949 cartoon Bunker Hill Bunny.
The station disappeared on December 23, 2004, but returned during February 2005, on its old frequencies plus additional new frequencies, including those of time signals stations WWV and WWVH. Reception reports seem to indicate that the transmitter site is likely in the desert near Albuquerque, New Mexico, United States. The Albuquerque location suggests another relation to Looney Tunes: the phrase frequently repeated by Bugs Bunny, "I knew I should have taken that left turn at Albuquerque."
Two amateur radio operators claim to have tracked down the source of Yosemite Sam in February 2005 as being located at the MATIC Center in Laguna, NM, a factory owned by Laguna Industries. As they took pictures of the site they were approached by security guards and left. Three hours later the radio transmission allegedly stopped.
- "Yosemite Sam" at Spynumbers.com Includes a recording of the station
- "Yosemite Sam" at the Global Frequency Database
- "Ham vs Spy (radio)" (Archived version on archive.org) Transmitter site pinpointed
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