A Mysterious Signal Began Transmitting as the Iran War Erupted—Now Someone is Jamming It

In the early hours of the U.S.-Israel war with Iran, a mysterious shortwave radio signal began broadcasting from an unknown location.

The broadcasts feature a man speaking mostly in Persian, although with the occasional inclusion of English language words, as a series of random numbers are conveyed, followed by the word tavajjoh, meaning “attention,” spoken three times before each transmission ends.

An artifact of the Cold War, the short radio dispatches that began just twelve hours after the onset of the conflict in Iran represent what radio experts refer to as a numbers station—a form of shortwave radio transmissions that broadcast random number sequences with the likely purpose of conveying information to intelligence officers in foreign nations.

#Iran #signals #shortwaveradio #codes #numbers

https://thedebrief.org/a-mysterious-signal-began-transmitting-as-the-iran-war-erupted-now-someone-is-jamming-it/

A Mysterious Signal Began Transmitting as the Iran War Erupted—Now Someone is Jamming It

Science, Tech and Defense for the Rebelliously Curious.

The Debrief
@cosmiclibrarian That's exactly what it is. I used to search for them on shortwave in the pre-Internet days. It is usually transmitted with a group number followed by the message. The group number is used to tell them which master key needs to be used to decode the message.

@zimmatore

Yes...old 'technology' has its place when things go south. Remember in 'Independence Day' when Morse code was used to communicate with other nations? We still need people to know these things. My dad was ham operator. Some of the younger generation do not really know how to write other than with a computer.

@cosmiclibrarian That is true. After being a shortwave enthusiast, I got my ham radio license and had to master Morse code. That's no longer a requirement today