[HN Gopher] Random numbers, Persian code: A mysterious signal tr...
       ___________________________________________________________________
        
       Random numbers, Persian code: A mysterious signal transfixes radio
       sleuths
        
       https://www.wired.com/story/a-mysterious-numbers-station-is-...
        
       Author : thinkingemote
       Score  : 98 points
       Date   : 2026-04-01 11:39 UTC (11 hours ago)
        
 (HTM) web link (www.rferl.org)
 (TXT) w3m dump (www.rferl.org)
        
       | aswegs8 wrote:
       | https://archive.is/20260323190952/https://www.wired.com/stor...
        
       | j16sdiz wrote:
       | Better source: https://www.rferl.org/a/mystery-numbers-station-
       | persian-sign...
        
         | lazyguythugman wrote:
         | I've been off put by WIRE recently. Thanks for this.
        
         | dang wrote:
         | Ok, we've changed to that from
         | https://www.wired.com/story/a-mysterious-numbers-station-is-...
         | above, and I've put the latter link in the toptext. Thanks!
        
       | hypeatei wrote:
       | This reminds me of UVB-76[0], a shortwave military radio in
       | Russia. It would be interesting know _why_ they 're using this
       | method to communicate covertly rather than beaming down messages
       | to a phone via satellite or something. I'm not an expert on
       | radios, though, so maybe it's not as clunky as I'm imagining
       | where an undercover asset is hauling around bulky equipment.
       | 
       | 0: https://en.wikipedia.org/wiki/UVB-76
        
         | jacknews wrote:
         | perhaps they're not directed at deeply embedded lone spies with
         | radios in their attics, but at 'military assets' which as a
         | matter of course can receive these transmissions on a
         | designated schedule.
        
         | teeray wrote:
         | It's simple, reliable, and effective. Shortwave receivers can
         | be made fairly compact. They're also very prevalent in most
         | countries (every ham transciever), so there's nothing
         | suspicious to pack. People find numbers stations interesting,
         | so they are often streamed online. One time pads have their
         | logistical shortcomings, but are still the best encryption
         | possible. The OTP can be compromised in known, visible ways,
         | where a phone has myriad invisible ways to be compromised.
        
           | smegger001 wrote:
           | You could probably cheat with the one time pad and use a book
           | as a key, pick a pre determined starting point go diagonally
           | down accross the page convert the letters to numbers and xor
           | that against the message. It would be near enough to random
           | and less conspicuous than a pad of random numbers when
           | searched.
        
             | teeray wrote:
             | That feels like something that could suffer from frequency
             | analysis.
        
         | nemomarx wrote:
         | Phones usually contain the hardware for radio too, so making
         | sure agents have some set of models for that doesn't sound bad.
         | Even if you had to use a dedicated one having a radio at home
         | isn't that conspicuous? Or in a car, etc
        
           | gorfian_robot wrote:
           | a consumer phone usually would only have an FM receiver
        
           | eichin wrote:
           | ooh, new fodder for conspiracies about electric cars not
           | having AM radios :-)
        
         | ndiddy wrote:
         | Like the article says, satellite messages can be traced while
         | radio is broadcast to everyone so it's impossible to find out
         | who's listening. Shortwave radios are also cheap and
         | widespread, so it's easy to get one anywhere in the world and
         | if your house gets searched, it won't be suspicious if you have
         | one.
        
           | tdeck wrote:
           | > Shortwave radios are also cheap and widespread, so it's
           | easy to get one anywhere in the world
           | 
           | I always hear this in discussions about number stations, but
           | I don't think this is true in the US. In fact, I don't think
           | I've ever seen a general consumer "shortwave radio". Unless
           | the regular AM band counts, which seems to be medium wave.
        
             | gorfian_robot wrote:
             | def a niche consumer item these days. but pretty easy to
             | make your own.
        
             | ndiddy wrote:
             | The term for shortwave radios targeting the general
             | consumer market is "world band radio". They look like a
             | standard portable AM/FM radio except they'll also pick up
             | long wave, medium wave, short wave, and maybe weather band.
             | They're more of a niche in the US now that internet
             | streaming is a thing, but you should still be able to get
             | one at most electronics stores. Of course like most niche
             | products, you'll get much better selection and pricing
             | online.
        
             | JohnFen wrote:
             | I'm in the US. At least half of the people I know own
             | shortwave radios, although most don't think of them as
             | "shortwave radios". They're more often called "world
             | radios" or some other such synonym. I could run out to a
             | consumer electronics store right now and buy one.
             | 
             | The younger people I know tend to own such a radio in the
             | form of the Baofeng UV-5R or the like.
        
               | lukeinator42 wrote:
               | A Baofeng UV-5R cannot receive shortwave, it's in the
               | VHF/UHF range for receive/transmit and can receive
               | commercial FM broadcast.
        
               | JohnFen wrote:
               | Ah, true. My mistake.
        
             | smegger001 wrote:
             | I used to have little battery powered
             | AM/FM/Shortwave/weather radio lost it a couple house
             | moveings ago. Kept it around for the emergacy weather radio
             | during flood events and other extreme weather when
             | internet/power isnt reliable. Should probably pick up a
             | replacement come to think of it.
        
           | lxgr wrote:
           | Satellite unicast receivers also can't be located. Iridium
           | pagers were (maybe still are?) a thing, for example.
           | 
           | However, carrying one of these is probably highly suspicious
           | compared to a world band radio receiver.
        
           | ErroneousBosh wrote:
           | > Like the article says, satellite messages can be traced
           | while radio is broadcast to everyone
           | 
           | I don't buy it.
           | 
           | Satellite downlinks are broadcast to everyone under a
           | potentially massive footprint. Take a look at the footprint
           | for QO-100 which you could use with very inexpensive
           | equipment that looks pretty much like a normal satellite TV
           | dish.
           | 
           | https://jeremyclark.ca/wp/telecom/sdr-for-
           | qo-100-satellite-r...
        
       | srean wrote:
       | Does this move around geographically ? Triangulating broadcast
       | location is a well understood craft.
        
         | rustyhancock wrote:
         | Shortwave radio is more challenging than you might imagine.
         | 
         | Near to the transmitter it's received by ground wave, further
         | it's scattered off the ionosphere. In-between it's undetectable
         | due to the skip zone. This might also explain why Amelia
         | Earhart went missing [1]
         | 
         | Coverage is obtained from multipath and reflections. Leading to
         | variable strength and timing. Not as bad as DXing on HF with
         | low power but much harder than you might imagine.
         | 
         | Fine for someone to transcribe some numbers but useless for
         | people trying to identify sources.
         | 
         | So locally you get an apparent direction to the source which is
         | clearly not the source.
         | 
         | Add to that the complex local terrain and a well placed number
         | stations can be very difficult to locate with precision.
         | 
         | Edit: unrelated but interesting there are some mysteries in HF
         | transmission including long delayed echoes where a signal takes
         | far longer than reasonable to travel out and back over several
         | seconds [0] which given its travelling light milliseconds is a
         | conundrum.
         | 
         | [0] https://en.wikipedia.org/wiki/Long_delayed_echo
         | 
         | [1] https://youtu.be/zTDFhWWPZ4Q?si=Ib8jfbdNP-sLHM0B
        
           | Supermancho wrote:
           | My father regailed tales of his college years where it was a
           | game to have a HAM radio operator start broadcasting and to
           | have teams try to find where they were hiding, first.
           | 
           | More challenging? Not really. It does require multiple boots
           | on the ground to do it.
        
             | srean wrote:
             | This seems to be a common treasure hunt game conducted by
             | HAM clubs.
        
               | Supermancho wrote:
               | That was it. Treasure hunt.
        
               | xanderlewis wrote:
               | Also known as fox hunting.
        
             | misnome wrote:
             | Presumably doing it locally within a known few mile radius
             | is different from nation-scale broadcast areas bounced from
             | god-knows-where?
        
               | Supermancho wrote:
               | If you can receive a shortwave signal, you can
               | triangulate the source.
        
               | srean wrote:
               | Reflections will pose a problem though.
               | 
               | Two receivers of the same signal may not be from the same
               | proximate source. One could from the original antenna the
               | other from a reflection. Both could be reflected but by
               | different reflectors. Even if the proximate source was
               | the same for both the receivers, triangulation might
               | yield the location of a _virtual image_ of the original
               | source.
               | 
               | BTW I am just going by geometry and may be way off
               | because radiowaves behave quite differently compared to
               | visible light.
               | 
               | One might need effectively the inverse of beamforming to
               | nail it.
        
               | rustyhancock wrote:
               | Exactly I have friends who have had voice contacts
               | reflecting off aurora at VHF
        
               | srean wrote:
               | That made my day. Thanks for the laughs.
        
               | misnome wrote:
               | See content of post you initially replied in the context
               | of:
               | 
               | > Shortwave radio is more challenging than you might
               | imagine.
        
               | adrian_b wrote:
               | Besides the problem caused by reflections and by the fact
               | that unless you are very close to the transmitter you do
               | not receive a direct wave but one reflected from the
               | ionosphere, there is an additional difficulty.
               | 
               | Antennas with high directivity, which are needed for
               | accurate triangulation, must be very big in the shortwave
               | range (wavelength from 100 meter to 10 meter). Moreover,
               | if they are too big it would be difficult to move them,
               | to be able to measure an angle.
               | 
               | So traditional triangulation is inaccurate in this
               | frequency range.
               | 
               | With modern technologies, using highly accurate
               | synchronized clocks, one could distribute shortwave
               | antennas over a large area, to create a synthetic
               | aperture array, enabling a precise triangulation. However
               | this would be expensive. An amateur would certainly not
               | have such a thing. I doubt that even a state would bother
               | to build such a thing, because it would not be
               | worthwhile.
               | 
               | While precise triangulation of a shortwave transmitter
               | from far away is very difficult, such a transmitter would
               | not be hard to find during a local search wherever it is
               | placed, because there not only the direction, but also
               | the intensity gradient of the signal would allow finding
               | it.
        
             | IAmBroom wrote:
             | Multiple boots on Iranian ground is tricky for Americans
             | right now.
        
             | BenjiWiebe wrote:
             | Yes, more challenging. Ham radio fox hunting is usually
             | VHF/UHF. Waaay easier to direction-find, since the signal
             | isn't bouncing off the ionosphere, and also the much
             | shorter wavelength means that you can get highly
             | directional antennas that are small enough to be held, and
             | don't need to be 50 feet in the air to work well.
        
           | srean wrote:
           | Thanks that was quite illuminating. I knew about ionospheric
           | reflections to be a problem but not the others.
        
           | red_admiral wrote:
           | I would guess that the combined EU/NATO counterintelligence
           | forces could find the station if they wanted to, especially
           | for the rough location in the article.
           | 
           | EDIT: apparently the source is on a U.S. military base in
           | Germany (other posts on this topic). Looks like its "ours"
           | then.
        
             | baxtr wrote:
             | Explains why it's still sending
        
         | JohnFen wrote:
         | The broadcast locations aren't really secret, and don't need to
         | be.
        
           | srean wrote:
           | Known locations can be taken out, no ?
        
             | JohnFen wrote:
             | Yes, but the locations of the big transmitters are in well-
             | defended areas and smaller transmitters are easy to
             | replace.
        
               | srean wrote:
               | Nothing much in Iran is well defended from air I suppose.
               | 
               | Assuming, of course, the hypothetical that it's a signal
               | emanating from Iran. The current fix seems to indicate
               | Germany, in which case you would be correct.
        
       | AlphaGeekZulu wrote:
       | N 48.690438deg E 9.086693deg
        
         | Cthulhu_ wrote:
         | Neat, there's no Street View coverage but there is clear
         | sattelite imagery: https://maps.app.goo.gl/RjGUAMExUrD6aqs59
         | 
         | Apple's maps version has that section blurred out though.
         | 
         | Bing's sattelite images seem to be older, the antenna isn't
         | visible on there yet and there's just building foundations: htt
         | ps://www.bing.com/maps?cp=48.690103%7E9.086240&lvl=18.8&s....
         | Can't determine how old those images are though.
        
           | AlphaGeekZulu wrote:
           | Until around 2000-2004 there have even been 2 Antennas. The
           | whole surrounding forest is a military training ground,
           | obviously used by German Bundeswehr and US forces. There are
           | German and US barracks on opposite ends of the area. Within
           | the vicinity there are an UXO clearance service, K9 school,
           | CQB training village, shooting ranges, lots of bunkers and
           | who knows what.
        
         | ttul wrote:
         | Street View nearby reveals this sign at the edge of the Street
         | View area: "Forstarbeiter und Militar Frei," which means
         | "Forestry Workers and Military [are free to enter]". The red
         | circle around the sign implies that everyone else is forbidden
         | to enter. So, it's some kind of military installation.
        
           | Eduard wrote:
           | https://maps.app.goo.gl/94ct471W1RjwHSXz5
        
       | philipwhiuk wrote:
       | Sounds like a CIA numbers station transmitting info to agents on
       | the ground.
        
       | NitpickLawyer wrote:
       | I wonder why they keep using a dedicated numbers station instead
       | of embedding the code in a regular radio broadcast on a
       | traditional channel? I'm sure that even before LLMs one could
       | find a way to create a story where certain numbers / code words
       | would be embedded without altering the underlying story too much.
       | And they could probably get BBC / whatever station to air it. It
       | would be a _bit_ less inconspicuous to listen to BBC than to a
       | dedicated numbers station, even if the message would be
       | undecryptable either way.
        
         | coldpie wrote:
         | Seems to me like coordinating with an entity outside of the
         | spooks' control, such as the BBC, would give more opportunities
         | for leaks. It would also reveal some information about who is
         | controlling the signal--someone with some kind of relationship
         | with the broadcaster.
        
           | red_admiral wrote:
           | During WWII, the BBC would daily have a section after the
           | news dedicated to "personal messages" - which everyone knew
           | were instructions to the resistance in France, or similar.
           | "William waits for Mary" was one of the more famous ones
           | related to D-Day, I think.
        
         | gorfian_robot wrote:
         | regular AM/FM stations are not broadcasting on shortwave bands
        
           | lxgr wrote:
           | There are still quite a few shortwave radio stations
           | broadcasting.
        
           | NitpickLawyer wrote:
           | Sure, but that would be a benefit, I would think. Most old
           | cars come with an AM/FM radio, most cheap phones now have FM
           | (? I don't know about AM, don't think so) and so on. So it
           | would be more inconspicuous to listen to a regular radio than
           | to a special station on special hardware. You don't even have
           | to broadcast from EU, you could probably purchase some Radio
           | Quatar Classical Rock or something :)
        
             | JohnFen wrote:
             | Radios capable of receiving shortwave bands aren't exactly
             | rare among normal people. They're not really "special
             | hardware". Just owning one would not be inherently
             | suspicious.
             | 
             | What would be suspicious is being in possession of the one-
             | time pad needed to decode the messages, regardless of which
             | media those messages are transmitted through.
             | 
             | For the record, "numbers stations" can be found in nearly
             | every communication medium, including the web. The
             | advantage of using shortwave (range, primarily) are large
             | enough that the benefits outweigh the drawbacks.
        
               | ErroneousBosh wrote:
               | > What would be suspicious is being in possession of the
               | one-time pad needed to decode the messages
               | 
               | Would it though?
               | 
               | All you need is something with sufficient entropy. I
               | reckon you could do a "good enough" job with any
               | plausible-looking data you have lying around on your hard
               | disk right now. Say for example if you took a couple of
               | sha256s of any random image you might post on social
               | media, you'd have quite a lot of key right there.
        
         | nhecker wrote:
         | I can't find it immediately, but I've read about something even
         | sneakier than this. A standard broadcast station was modified
         | such that its carrier signal was modulated by a PSK signal. The
         | intended listener would use e.g., a PSK-31 modem to listen to
         | the carrier signal and would be able to obtain the encoded
         | digital data. Everyday listeners would hear the regular
         | broadcast. The station involved _might_ have been a BBC
         | station, but I don't recall.
        
           | mbirth wrote:
           | You could technically just transmit data via RDS, too. Change
           | a letter here and there and nobody would know whether that's
           | a decoding error or actual ciphertext. (Would need some kind
           | of checksum or so, of course.)
           | 
           | @windytan did a fascinating audio clip highlighting the RDS
           | data stream in a radio recording some while ago:
           | 
           | https://soundcloud.com/windytan-1/rds-mixdown
        
         | b00ty4breakfast wrote:
         | who's to say they aren't doing both? They may not even be
         | sending anything over the number station; these stations will
         | continue on a schedule even when there is nothing to say and
         | nobody is listening because it makes it harder to eek out a
         | foothold in the event of a weakness in the encryption.
        
           | red_admiral wrote:
           | Even if the encryption is one-time pads, if you broadcast a
           | bit every day then you don't warn the enemy that something's
           | up by the fact that you're transmitting at all.
        
         | zitterbewegung wrote:
         | Shortwave propagates better and also its just a one time pad
         | being distributed so embedding doesn't matter as much as long
         | as the one time pad is longer than the intended message to
         | send. There is no way to decrypt it because once you encrypt a
         | message using a one time pad it is impossible to decrypt
         | without the exact one time pad that it was encrypted with.
        
           | bluGill wrote:
           | One time pads work only if only the sender and receiver have
           | a copy of the pad - and they destroy each sheet on use.
           | Distributing the pads is hard, but often it can be done
           | easier than the message.
           | 
           | Distributing a one time pad like this is a stupid idea: it
           | isn't hard to collect everything you ever send, and it takes
           | a computer a few ms to check every encrypted message against
           | every possible sequence. That is breaking a distribute one
           | time pad via shortwave like this is something a single
           | layperson can do, it doesn't even need a government scale
           | attacker to break it.
           | 
           | Don't get me wrong, this can be used for good encryption.
           | However it isn't a one time pad they are doing, it is
           | something more complex.
        
             | pclmulqdq wrote:
             | Every message is equally likely when you attempt this kind
             | of brute-force decryption with a one-time pad. The code you
             | get is actually 100% unbreakable if the pad isn't
             | intercepted.
        
               | BenjiWiebe wrote:
               | I think there's some confusion in this thread. GGP talks
               | about distributing the one time pad via the numbers
               | station. GP (rightly) says that's a stupid idea.
               | 
               | The numbers station should be transmitting a _message_
               | encoded with a one time pad. The one time pad itself
               | should be physically given in person to the spies who you
               | want to communicate with.
        
               | bell-cot wrote:
               | Or, if one is uncertain whether to trust the courier
               | between you and your spy - one can send two different one
               | time pads by two different couriers. If the spy is
               | trained to xor those pads together before using, an enemy
               | must intercept both pads to be able to read your
               | messages.
               | 
               | There are many variants on this, including pads which you
               | hope your enemy will intercept.
        
           | SAI_Peregrinus wrote:
           | It's not a one-time pad being distributed, because leaking
           | the pad leaks all your communications. It's almost certainly
           | the actual messages being distributed, at specific times of
           | day. The listener records the numbers for the known time
           | period to get the message, then decodes it with their pad for
           | that period. Then they destroy that pad. Continually
           | broadcasting numbers makes it impossible to tell the length
           | of the messages.
        
           | zikduruqe wrote:
           | And it is faster than the internet. That's why high speed
           | traders are starting to use HF.
           | 
           | https://spectrum.ieee.org/wall-street-tries-shortwave-
           | radio-...
        
         | some_random wrote:
         | I think you're massively overestimating the amount of control
         | the US has over news broadcasters.
        
         | fortran77 wrote:
         | I think they do this, too.
         | 
         | However, the numbers stations transmissions are never a big
         | secret. They're intentionally powerful so someone can pick them
         | up on simple equipment without raising suspicion. A person can
         | modify an off-the-shelf AM radio to pick up shortwave, for
         | example, even in an oppressive regime.
         | 
         | It's a one-time pad, so the encryption is unbreakable.
        
         | daneel_w wrote:
         | _> "I'm sure that even before LLMs one could find a way to
         | create a story where certain numbers / code words would be
         | embedded without altering the underlying story too much."_
         | 
         | It's called _steganography_ , and it's a centuries if not
         | millennia old technique.
        
           | shagie wrote:
           | I recall reading about this in The Code Book by Simon Singh
           | when I was dabbling with writing single and double
           | substitution cypher solvers.
           | 
           | https://en.wikipedia.org/wiki/Steganography#History
           | 
           | > The first recorded uses of steganography can be traced back
           | to 440 BC in Greece, when Herodotus mentions two examples in
           | his Histories. Histiaeus sent a message to his vassal,
           | Aristagoras, by shaving the head of his most trusted servant,
           | "marking" the message onto his scalp, then sending him on his
           | way once his hair had regrown, with the instruction, "When
           | thou art come to Miletus, bid Aristagoras shave thy head, and
           | look thereon." Additionally, Demaratus sent a warning about a
           | forthcoming attack to Greece by writing it directly on the
           | wooden backing of a wax tablet before applying its beeswax
           | surface. Wax tablets were in common use then as reusable
           | writing surfaces, sometimes used for shorthand.
        
         | user982 wrote:
         | The previous time that the US and UK overthrew Iran's
         | government
         | (https://en.wikipedia.org/wiki/1953_Iranian_coup_d'%C3%A9tat),
         | they used the BBC in that way.                 Roosevelt told
         | the Shah that he was in Iran on behalf of the American and
         | British secret services, and that this would be confirmed by a
         | code word the Shah would be able to hear on the BBC the next
         | night. Churchill had arranged that the BBC would end its
         | broadcast day by saying not 'it is now midnight' as usual, but
         | 'it is now exactly midnight'
        
         | anigbrowl wrote:
         | Because you can drive intel analysts crazy with this one weird
         | trick. They know you can't decrypt one time pads, but they
         | can't resist checking for entropy and trying to match it to
         | known OTPs they may have acquired through intelligence
         | channels. Running and programming the shortwave transmitter is
         | dirt cheap; tying up some of opponents' SIGINT resources on a
         | wild goose chase is good value for money.
        
       | butler14 wrote:
       | "We don't need NATO." But we do need our bases in Germany plz.
        
         | Cthulhu_ wrote:
         | These two don't have to be related per se, but it sure helps
         | with maintaining a healthy mutually beneficial military
         | relationship.
        
       | chinathrow wrote:
       | https://priyom.org/number-stations/other/v32
        
       | ndiddy wrote:
       | If anyone is interested in further reading, this group are the
       | world's leading experts on number stations (outside of
       | intelligence services of course). They've done a detailed article
       | on the new station, including recordings, technical mishaps, and
       | analysis of why they believe the station is CIA run.
       | https://priyom.org/number-stations/other/v32
       | 
       | > Considering the topical interest in this station, the Priyom
       | team shares its further expertise regarding V32's attribution,
       | beyond being transmitted from a US military facility. While this
       | remains unconfirmed speculation, and not facts, a prime candidate
       | for the operator of this station would be the CIA. Contrary to
       | popular belief, US intelligence has not entirely moved away from
       | numbers stations. Sources in the intelligence community indicate
       | that the CIA provides extra training about numbers stations and
       | one-time pads to clandestine agents assigned to locations with a
       | very hostile operating environment, such as Iran or North Korea:
       | it is envisioned as a last-resort means of communication with
       | high-value sources. So according to this, numbers stations are
       | actually still an institutional part of the CIA playbook. The war
       | in Iran, and the Internet blackout installed by the regime,
       | fulfill the very circumstances for which the CIA would have
       | planned this.
       | 
       | > We already know that the CIA has a significant presence in Iran
       | and involvement in the war, having provided crucial intelligence
       | tracking Iranian leaders that enabled the assassination strikes
       | that kickstarted the war. They most probably have had a network
       | of infiltrated assets already in place and organized, ready to be
       | reached through a numbers station if need be right when the war
       | started - which makes the CIA a candidate for running V32
       | consistent with a legitimate intelligence operation. However,
       | what we've observed from V32's operations - technical quirks and
       | shifting formats - suggest that the technical deployment of the
       | numbers station and shortwave transmissions themselves may have
       | been a little rushed by the circumstances.
       | 
       | > Another noteworthy feature of V32 is how all its transmissions
       | take place on the same frequency. Most other numbers stations in
       | general are comprehensive operations targeting many different
       | recipients in different countries, and making use of many
       | different transmission times and frequencies suited to the
       | particular signal propagation needs corresponding to all those
       | areas. In contrast, the fact that V32 always uses a single, same
       | frequency, at always two given times of the day, would be
       | consistent with an operation that only needs to target a single
       | geographical area: Iran.
        
         | kreetx wrote:
         | Thanks for the link, really interesting!
        
       | srean wrote:
       | For intelligence agencies,        it is important to
       | communicate with their        spies to gather intelligence,"
       | says John Sipher, a former        US intelligence officer
       | 
       | Is Sipher really his name. Nominative determinism strikes again.
       | 
       |  _Sifr_ is also a valid word both in Farsi, I think. An Ironic
       | and cruel pun.
        
         | buildbot wrote:
         | Random chance has a really good sense of humor!
        
         | Obscurity4340 wrote:
         | 1/10 dentists hates nominative determinism. That dentist? Dr.
         | Procter
        
         | OJFord wrote:
         | > Sifr is also a valid word both in Farsi, I think
         | 
         | That _is_ the root of  'cipher'; meaning
         | zero/empty/nothingness.
        
           | srean wrote:
           | Indeed and used cleverly in Casino Royale by naming Le
           | Chiffre that way.
           | 
           | I knew 'sifr' was an Arabic word and only today I came to
           | know that it works in Farsi too.
           | 
           | The double pun/irony is that the John Sipher's surname is
           | related to the topic of cryptography and that the
           | etymological roots is Middle-Eastern.
        
             | OJFord wrote:
             | Also Hindi, Urdu, and no doubt others if we're drawing
             | lines :) - there's an awful lot of overlap/loanwords.
        
         | ErroneousBosh wrote:
         | You'd be amazed how many firefighters I know called "Burns",
         | even leaving aside Ayrshire where lots of people are not-too-
         | distantly related to a famous poet who, to put it mildly, put
         | it about a bit.
        
         | akssri wrote:
         | More so if you know the etymology,
         | 
         | https://www.etymonline.com/word/cipher
         | 
         | (Al Jabr, the translator of Indian Mathematical texts was a
         | Persian IIRC)
        
           | lioeters wrote:
           | Al-Jabr, from where we get the word _albebra_ , is an
           | abbreviated name of the book (The Compendious Book on
           | Calculation by Completion and Balancing). The translator's
           | name was al-Khwarizmi, from where we get the word
           | _algorithm_. He was of Persian origin.
        
             | srean wrote:
             | Why do say "translator's name" ?
             | 
             | Al-Khwarizmi authored the book Al-Jabr.
        
               | lioeters wrote:
               | Oh you're right, I was confused by the rich cultural
               | exchange of translations happening at the time, from
               | Greek and Sanskrit texts to Arabic then later Arabic
               | texts to Latin. Both the book and the author are
               | fascinating subjects I enjoy learning more about.
        
               | srean wrote:
               | Islamic golden age was an interesting time indeed. In
               | addition to algebra, significant contribution to Optics.
        
       | cathyfin8 wrote:
       | Interesting. Some sort of sync signal?
        
       | IAmGraydon wrote:
       | The location of this transmitter is a shortwave transmission
       | facility within a US military base in Boblingen, 15 km southwest
       | of Stuttgart, Germany. The coordinates:
       | 
       | 48deg41'26"N 9deg05'12"E
       | 
       | https://www.google.com/maps/place/48%C2%B041'26.0%22N+9%C2%B...
        
         | andyjohnson0 wrote:
         | Interesting. I have no reason to disbelieve you.
         | 
         | So...
         | 
         | If its being broadcast by the US military or the CIA, why
         | Persian?
         | 
         | Because they're issueing activation orders to their network of
         | ani-regime operatives inside Iran? Who, mysteriously for spies,
         | only know that language?
         | 
         | Or because they want the Iranian government to _think_ that?
         | And a numbers station broadcasting in - unusually - Persian, is
         | an easy way to get the attention of the Iranians?
         | 
         | I'm thinking the latter.
        
           | red_admiral wrote:
           | Locally and recently recruited spies inside Iran?
        
           | ndiddy wrote:
           | The CIA recruits a lot of Iranians to spy for them. Since the
           | Internet is a thing, they typically communicate with them
           | that way. For example, in the 2010s the CIA ran hundreds of
           | fake news, sports, travel, religious, etc. websites, where
           | typing a password into a search box or other text field would
           | open a hidden message area where operatives could read
           | messages from the CIA and send back information. This network
           | was eventually destroyed and hundreds of sources were
           | arrested because the CIA made the error of using the same few
           | messaging scripts and hosting the sites from a few contiguous
           | IP blocks, but it's a good idea of how they generally
           | operate. See here for more info:
           | https://www.reuters.com/investigates/special-report/usa-
           | spie... https://cirosantilli.com/cia-2010-covert-
           | communication-websi...
           | 
           | However, since the US-Israeli bombing of Iran on Feb 28, the
           | Iranian government has shut down the whole country's Internet
           | access. This means that the CIA needs another way to send
           | information out, hence the numbers station.
        
           | IAmGraydon wrote:
           | The latter seems more plausible to me as well. It's
           | psychological warfare - make them think that the enemy is
           | amongst them.
        
       | ada1981 wrote:
       | over / under it's just some kid broadcasting an encrypted Phish
       | Prague 7/6/98 GHOST on repeat?
       | 
       | https://youtu.be/Q6cR7PEyzW4
        
       | andyjohnson0 wrote:
       | > Fernandez, who more than two decades ago published a four-CD
       | audio compendium of hundreds of recordings from around the world
       | called the Conet Project. It's considered the Bible for numbers-
       | station enthusiasts.
       | 
       | The Conet Project is an interesting listen -- very analogue, Cold
       | War-ish, and a bit sinister. Seems to be available on the
       | Internet Archive at https://archive.org/details/The-Conet-Project
        
       | frrlpp wrote:
       | Cannot believe they didn't write the frequencies. Incompetents.
        
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