Buzzer is not transmitted from Kerro anymore, new military marker on 4525 USB

09 August 2015

The Russian military network The Buzzer on 4625 kHz is not transmitted from the Kerro transmitter site ("Irtysh") anymore. It seems that the Russians are reverting to their old structure, when the frequency 4625 kHz was only used for the Moscow Military District. At present, The Buzzer appears to be broadcast only from the 69th Communication Hub in Naro Fominsk. A new military marker, similar to The Buzzer, The Pip, The Squeaky Wheel and S5292, was discovered on the frequency 4525 kHz,...

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Squeeky wheel S32 new (test?) day frequency

24 April 2015

Priyom found a new frequency for the famous Russian circular military network The Squeaky Wheel. It is 7009 kHz and operates in parallel to network's normal day frequency, 5473 kHz. You can enjoy it here.

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Buzzer adopts night frequency

24 February 2015

THIS FREQUENCY WAS TEMPORARY AND IS NOW NO LONGER IN USE   It hasn't been long since Russian military added a channel marker (B Marker mentioned in last blog post) to a channel - which sends monolith messages just like Buzzer, Pip, Wheel and so on - using frequency 5292kHz. It looks like the Western & Central military districts at least are undergoing some changes and/or upgrades, for the past few days the Buzzer has been also sending continuously on 3216kHz as well as its regular...

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B marker - 5292kHz Russian Military Marker

16 February 2015

We now have a fifth Russian military circular station with a channel marker! First there was Buzzer, then Pip, then Wheel, then R marker, well let us introduce to you the D marker! On Thursday 11th February 2015 we have found a new Russian military channel marker, akin to the buzzer! This is not something we expected to find in 2015 but rather would expect the opposite, less and less shortwave usage and more movement towards newer systems. The frequency for this new channel marker is 5292kH...

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Swedish Security Service Tells us about their Numbers Stations Experience

24 January 2015

The Swedish Counter Intelligence Säkerhetspolisen (SÄPO) has recently published a story about a Swedish double agent who was the recipient of S10 Bulgarian Betty, an old Czechoslovak number station. totoCZ comments: What's interesting is that it's read live, and uses "=" (Equal sign, "Rovná se") instead of "Attention" (Pozor). The shortwave number stations legend, Jochen Schäfer, has confirmed he remembers hearing this old version in the late 1970s. We've heard a similar record...

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Priyom Discovers Polish Intelligence Digital Transmissions

21 December 2014

On November 25th, 2014, we noticed a transmission made with an FSK digital mode used by Polish intelligence, which started an investigation of its internals. This system has been in use since at least 2009, and a decoder for it is already included in certain expensive software, but little of its operation habits have been documented in public sources. This system uses the baud rate of 100 bd, the shift of 740 Hz, and a custom 16-bit alphabet. POL FSK without a message (December 8th, 2...

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X06 Uses Windows XP and GRU's Transmitter

15 October 2014

The following is a description of a very interesting transmission that took place on October 14th. At about 07:20 UTC we spotted a carrier on 10755 kHz, a frequency commonly used by the Russian military intelligence agency GRU for unscheduled E06 and S06 with ID 975. The carrier had a characteristic of one of GRU's transmitters - that is, the transmitter hum present on both side bands, the actual audio on the upper, and only traces of it on the lower. Expecting E06 or S06 to start any time ...

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The ID 274 of E17z

12 October 2014

We've recently been hearing from the ID 274 of Ukraine's E17z, which is now always unscheduled, and renowned for frequent breakdowns whenever there are messages longer than 10 groups. As we learned from the old ENIGMA newsletters, it has already been like that back in the 1990s, when E17z was using the old E17 voice with longer messages. This ID still makes appearances, usually once every a few years. Looking at the logs, even those from the previous years, this ID consistently uses a ...

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Preserving History: ENIGMA Newsletters

07 September 2014

Priyom has scanned and uploaded all the issues of the original "ENIGMA" newsletter, that was published in the years 1993 - 2000 by the European Numbers Information Gathering and Monitoring Association (ENIGMA). These are currently very rare, and we're making them available here to preserve history. ENIGMA was a number station research group, founded in 1993 by long-time enthusiasts Chris Midgley and Mike Gaufman. They published a hard copy newsletter, first 4 times a year, then twice-annual...

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Priyom Releases a Top Secret Document about Numbers

17 June 2014

"We make available everything we can. History is a property owned by all of us, not only the historians." -- Ivo Schwarz, former director of ÚZSI (2007-2014, at ÚZSI for 15 years) Thanks to some help from the Czech Security Services Archive, Office for Foreign Relations and Information (ÚZSI) and Petr OK1PM of we are releasing a unique Czechoslovak State Security document about a device that used to run the StB's and later ÚZSI's Number Stations in the 198...

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