Recordings

M42 variants, X06

M42 (Russian Government and Intelligence)

Russian diplo. Serdolik (a.k.a. CROWD-36)

Russian diiplo. 7.49Bd MFSK

Emercom, 20-10-30, 1925 UTC, voice

X06 & M42 Message to DKR. 1994-12-11, 1150 UTC, 16153 kHz

Russian Intel. MFSK-PSK

2014-04-15, 1749 UTC, MFSK-11

2014-06-19, 1737 UTC, MFSK-66

2014-11-14, 1000 UTC, PSK 3000bd / MFSK-68 tone

2015-11, Russian intelligence digital experiments

2016-02-09, 1515 UTC, 9171 kHz, FSK 75/500

2016-07-09, 1330 UTC, 14440 kHz, various Serdolik modes

2022-08-10, Serdolik v2

MFSK-11 125Bd/250Hz, 2022-11-30, 1130 UTC


M42 Experimental modes

Mode A: 8x62.5Bd QPSK


Mode B: 8x62.5Bd QPSK/250Bd BPSK


Mode E: 2013-11-22, new Hybrid mode: 5xMFSK-16/250bd BPSK


Mode E: 5xMFSK-16/250Bd BPSK


Mode E: 5xMFSK-16/250Bd BPSK


M42a - GRU HFDF-net

2015-01-07, 1536 UTC, 7697khz


M42b - FSK 50/500 transmissions

2014-11-02, 1036 UTC

2014-11-02, 1042 UTC

2016-02-09, 1523 UTC, opchat

2016-02-25, 1406 UTC, NT9P

2016-02-25, 1416 UTC, K4MT

2016-02-25, 1445 UTC, K4MT

2016-02-25, 1500 UTC, K4MT

2016-02-25, 1500 UTC, NT9P

2016-02-25, 1600 UTC, NT9P

2016-02-25, 1740 UTC, NT9P

2016-02-25, 1810 UTC, NT9P

2016-09-21, 1420 UTC

2020-05-24, 0619 UTC, GX7N

2020-05-24, 0618 UTC, TIGR


F01 (former M42c) - FSK 200/500 transmissions

2014-11-29, 1900 UTC

2014-12-13, 1810 UTC

2014-12-27, 1320 UTC

2015-01-03, 1820 UTC

2015-01-08, 2000 UTC

2015-04-25, 1200 UTC

2016-02-17, 1015 UTC

2016-05-06, 1545 UTC, 7990 kHz -async- GRU test

2016-08-26, 2240 UTC, 18395 kHz

F06 (former M42d) - FSK 200/1000 transmissions

Russian Intel. 2012-01-28

2013-03-04, 2240 UTC

2014-10-28, 1350 UTC

2014-11-28, 0710 UTC

2014-12-02, 1159 UTC,

2014-12-04, 0720 UTC

2014-12-11, 1200 UTC

2014-12-23, 1210 UTC

2014-12-28, 1000 UTC

2015-01-06, 1410 UTC

2015-01-13, 1410 UTC

2015-01-20, 1200 UTC, FSK 200-500 faulty shift

2015-02-26, 1330 UTC

2015-05-12, 2100 UTC


F06a - ASCII variant of F06

2016-04-21, 1710 UTC, 11570 kHz. inverted ASCII

2018-09-04, 1600 UTC    Received file: 003261.TLG


X06 - Mazielka, selcal system for some M42 stations

1999-03-13, 1423 UTC

1999-05-19, 1650 UTC

1999-06-14, 2035 UTC

2000-01-06, 1623 UTC

2011-12-02, 0924 UTC

2011-12-02, 1334 UTC

2013-05-16, 0713 UTC

2013-08-19, 1636 UTC

2014-11-11, 0758 UTC, Sequence 534216

2014-11-14, 1623 UTC, Sequence 564213

2014-12-02, 1000 UTC

2014-12-22, 1203 UTC, Sequence 256134

2015-02-12, 0835 UTC

2015-02-16, 1652 UTC

2015-09-01, 1346 UTC, 18523 kHz

2015-09-02, 0836 UTC, 13838 kHz

2017-08-24, 0942 UTC, 10193 kHz


X06a - Mazielka

2017-08-11, 1036 UTC, 0146 kHz


X06b - Mazielka

X06b   2014-03-12, 1701 UTC

X06b   2011-04-27

X06c    2011-09-12

X06b   2015-10-10, 0629 UTC, 13368 kHz

X06b   2016-01-02, 0837 and 0841 UTC



X06c - Mazielka


2014-02-27, 1100 UTC