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Mazielka

Enigma ID X06

Spectrum image X06

Name Mazielka
Frequencies
Status Active
Voice N/A
Emission mode USB + carrier; 6-tone MFSK
Location Moscow, Russia
Activity pages

Download audio sample

Known counterpart stations

Mazielka is a selective calling system used by the Russian diplomatic service. It emits a sequence of 6 tones in succession, ~330 ms long each, followed by a ~1320 ms pause, repeated over and over. Typically emitted on the upper sideband with a full carrier, the tones are assigned the following frequencies, in hertz: (±5 Hz)

1 2 3 4 5 6
815 845 875 910 950 990

Mazielka calls are broadcast exclusively by Moscow. The calls are followed by a point-to-point link using either "Perelivt" or Serdolik, depending on the target. The frequency the Mazielka call is made on is rarely used for the link itself. The link frequently takes place in parallel to the Mazielka call.

There are 54 active tone sequences, each corresponding to a single Russian diplomatic mission. Each sequence has its own pool of frequencies, one of which is chosen for the call. The call is broadcast until a link establishment attempt is received from the target on any of its frequencies. In case none is heard, the call may be moved to another frequency from the pool.

Sequence Target Daytime frequencies Nighttime frequencies Link ID
124356 Dushanbe 10422, 13965   80016
125643 Ulaanbaatar 11081, 13524, 14615, 15989, 19875    
134265 Tunis 12134, 13985, 16116, 18245   60047
145632 Algiers 10114, 13410, 14414, 15810 6866, 8169, 9163 00007
153624 Damascus 12133, 13843, 14550, 16153    
154263 Rome 11085, 12149, 13401, 14358, 15687    
156234   11525, 13940, 14871, 17475, 20690 5772, 7635, 9235 80038
162543 Nicosia 10508, 12219, 13448, 14447, 15973    
164253 Addis Ababa 12120, 13924, 14655, 18177, 20334 7862, 9128 10042
164532 Dublin 10293, 11411, 13506, 16223 6962, 7527, 8131, 9163 40034
165324 Vienna 10161, 11638, 12122, 13452 6960, 7411, 8078  
165423 Brussels 9450, 11462, 12157, 13411, 15836 8005  
213546 Islamabad 10283, 11438, 12168, 13954, 14425 5412  
214356 Amman 12186, 14501, 17430, 18346 8180, 9253  
215346 Mumbai 12207, 13979, 14650, 16115 7560, 9076, 10202  
216354 Chennai 11125, 12091, 13961, 14970, 17470, 20813 9351 00085
216435 Dhaka 11095, 13510, 15920, 19610   80072
231654 Abuja 15676, 16103, 17506 9174, 11467 00063
241563 Karachi 14720, 16320 6850, 7680, 8180, 10815 40078
246531 Accra 14812, 17421, 18206, 20336 9386  
256134 Abidjan 15828, 17463, 19611, 20605 7833, 12055 10097
256341 Ankara 10145, 10684, 12150, 13838, 14405, 15819    
261453 Cairo 11136, 13530, 14865, 15710, 16060    
263145 Prague 10214, 11561, 13441, 14812 6948, 7961, 9127  
314265 Antananarivo 12195, 16276, 17517, 19511, 21825 7740, 8105, 10731 30033
324615 Madrid 11030, 12094, 14570, 16219 10380  
325614 Nairobi 14942, 16188, 17454, 18523, 20655 11472, 12118 30044
351264   10255, 11010, 12060, 14934, 17534, 18060 5932, 7691 30088
352416 Dar es Salaam 12089, 13951, 14950, 16132, 18575, 19405   50002
356412 Berlin 9288, 10653, 12177 4912, 7604  
361245 Copenhagen 9158, 12215, 14501 4542, 6986  
362154 Athens 10815, 12138, 13465, 14631, 17445 8062  
364152 New Delhi 11492, 12177, 13467, 14683, 15656 9162 10053
412356 Budapest 9061, 10814, 11483, 13369    
421635 Oslo 7426, 10127, 11424, 11537, 13423    
431625 Warsaw 9923, 10372, 12109 6893  
432516 Bern 10453, 11562, 12152, 14377 5760, 7823 70060
435621   12066, 15651, 17444, 18591, 20950 8147  
436512 Harare 15866, 16277, 17468 10196 60069
452163 Kabul 10181, 12130, 13481, 14595 6818, 8041  
463125 Rabat 12224, 13517, 16117, 18060 6870, 7820, 8123, 9105 90039
465132 Sofia 10172, 11153, 13419 7516  
521634 Bucharest 12126, 13854, 14419, 16324 5775  
532614 Paris 10270, 11438, 12199, 13395 4975, 8081, 9160  
534216 Baghdad 10767, 11545, 13420   00030
542136 Beijing 12107, 13439, 14861, 16257, 17523 8175  
561243 Helsinki 7988, 9065    
564213 Bonn 10475, 11447, 12158, 13338, 14442 5815, 7545  
612534 Ashgabat 12100, 13510, 14675, 16317, 17520 5818, 6884, 7975, 9253 70015
615243 Geneva 12213, 13575, 14863    
621543 Lisbon 11126, 12167, 14944, 15878, 18660 6938, 7870  
625413 Tel Aviv 12194, 13547, 14824    
641523 Lusaka 14825, 17511, 18750, 20675 7532 00041
645321 Ho Chi Minh City 12178, 16103, 18197, 20837 5785, 6877, 7773, 9041  

Mazielka is sometimes used to emit test sequences like 123456, 111666, 121212, or 111111. Such test sequences can be heard about an hour before the Moscow-based E07, M12XPA, and XPA2 schedules, on the frequencies these schedules are going to use, in ascending order (regardless of the order used on the schedule), suggesting a link between the Russian 7 operator and the Russian diplomatic service.

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