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MID-WEST, UNITED STATES — Within hours of South Korean news sources breaking a story that several Sang-Ho class submarines had disappeared from their North Korean bases, a ham radio operator named Tim, picked up a “numbers station” broadcasting on the same frequency as “The Voice of Korea” propaganda station. What makes this even more interesting is that at the tail end of the numbers transmission there was a long duration digital transmission as well.
For more than 30 years the Shortwave radio spectrum has been used by the worlds intelligence agencies to transmit secret messages. These messages are transmitted by hundreds of Numbers Stations. Shortwave Numbers Stations are a perfect method of anonymous, one way communication. Spies located anywhere in the world can be communicated to by their masters via small, locally available, and unmodified Shortwave receivers. The encryption system used by Numbers Stations, known as a one time pad is unbreakable. Combine this with the fact that it is almost impossible to track down the message recipients once they are inserted into the enemy country, it becomes clear just how powerful the Numbers Station system is. These stations use very rigid schedules, and transmit in many different languages, employing male and female voices repeating strings of numbers or phonetic letters day and night, all year round. The voices are of varying pitches and intonation; there is even a German station (The Swedish Rhapsody) that transmits a female child's voice!
What is more significant is the digital signal at the end of the transmission. Digital transmissions such as this one may indicate the presence of a burst transmission which contains a compressed and encrypted message bound for some covert force, somewhere. Typically a burst transmission is used to minimize the download time at the end point to prevent discovery. The unusual part of this potential burst transmission is being attached to a numbers station as well as the length and the power of the broadcast. Normal burst transmissions are in the one second to two second range. This transmission was in the 10 to 15 second range which is almost unheard of, unless the end point is a submarine. The ham operator who picked up this particular transmission was located in the Midwest of the United States, and he reported the transmission was received 4 by 5 indicating a significant power was used to send the transmission. That level of power coupled with the length and possible submarine end point opens up a new and alarming tangent to this escalating conflict. It is important to point out that the numbers are being read in Spanish but that is typically done to confuse the original source of the transmission. In this case the transmission was detected on a upper side band of the AM range used by the Voice of Korea so while the numbers are Spanish the transmission does appear to originate in North Korea. That fact coupled with the missing submarines seems to provide evidence of the nature of the transmission despite being in Spanish. Its also important to note that the numbers being in Spanish could also be used to employ a different set of codes in the operatives code books.
Originally posted by TheSep
Wait NK has missing subs?!
Originally posted by Swills
Originally posted by TheSep
Wait NK has missing subs?!
Wait.... NK has subs?
Disappeared a few days before leaving the naval base in North Korea, please submersible two. Meanwhile, South Korea military to track the movement of North Korean submarine corvettes to send an additional vigilance. Between the beginning of next week, starting tomorrow. Been obtained intelligence that North Korea’s provocations can
A few days ago, North Korean submarine two disappeared after leaving the naval base in Hwanghae Province Please hid a military source said.
30m small, 130-ton torpedo can carry a two-foot Chinese crew of 10 people, and at depths of less than 100m mission for more than three or four days longer available.
Can anyone find a more reliable source for the radio transmission? I was not finding one.edit on 8-4-2013 by Twilightgem because: (no reason given)edit on 8-4-2013 by Twilightgem because: (no reason given)
source of quoteedit on 8-4-2013 by Twilightgem because: (no reason given)
submarine corvettes
Originally posted by MidKnight
Transmission Deycrypted -
Up-Up-Down-Down-Left-Right-Left-Right B, A, Start
Originally posted by Flyzoid
reply to post by kdog1982
Thanks op,
I was thinking maybe some sort of transmission would be picked up by some guy
On a ham radio, rest assured. If that guy picked it up US military picked it up too.
Wondering if the transmission can be decoded.
On a side note, I've been anti North Korea threads but this one has peaked my interest lol.
Good find op