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Russian T600 Frequencies and Callsigns

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The T600 list so far, compiled from udxf members and other sources, with my thanks;

Technical and Tuning Notes

Callsigns listed were either copied via fsk-cw opchat, ITU monitoring, or interpolated from tdoa/df fix. There are many logs reported as T600 suspects that weren't id'd as T600 left out as they were many, but might create a pervasive list later on. Some of the logs ending in 0.5 or other may have been mistuned by the logger but unsure, the listed are presumed cf so tune 2kc lower in usb mode to copy at 2kc in the decoder. A 360Hz filter centered on 2kHz with a notch right at 2kHz does wonders for copy. Any further logs, even if dated, much appreciated!

The free software Rivet can read this mode. It has its own wiki

Logged

Note +2khz is the center frequency
  • 07814 RDL Russian Navy Astrakhan 08MAR23 2335Z 0.8uv 2
  • 09222 RIT Russian Navy Severomorsk 12FEB23 0317Z 1.2uv Fadeout 1854Z
  • 09344 RIT Russian Navy Severomorsk 09FEB23 0046Z 0.9uv 2
  • 12610 RIT Russian Navy Severomorsk 30JAN22 2244Z 3.0uV
  • 14664 RDL Russian Navy Severomorsk 04FEB23 1929Z 0.7uv 2
  • 15776 RCV Russian Navy Sevastopol 06FEB23 1810Z 0.5uV
  • 16232 RDL Russian Navy Moscow 09FEB23 1631Z 0.3uV
  • 16314 RMP Russian Navy Kaliningrad 04FEB23 1743Z 0.3uv
  • 17458 RDL Russian Navy Moscow 22FEB23 1731Z 0.1uV
  • 19686 RIT Russian Navy Severomorsk 09FEB23 1433Z 0.4uv 1, 3
  • 21782 RMP Russian Navy Kaliningrad 09FEB23 1510Z 0.2uv
Notes on Logged
  1. 173Hz shift? Mode splitting going on here
  2. simulkeyed // 18.1kHz
  3. simulkeyed unknown source


VLF Loggings

  • Presumed 18.1KHz VLF and // HF = SSBN Fleet Bcast
  • Presumed 21.1KHz VLF and // HF = SSN Fleet Bcast


Simulcast BEE (T600)

  1. 10712, 11088, 15778, 16808, 20536, 22413
  2. 5890, 9224, 11524, 14581, 16207, 19688, 19936
  3. 14192, 16234
  4. RDL cw and BEE (T600):(simulkeyed with 18.1) 3363, 3861, 4043, 4446, 4582, 4602, 5268, 5438, 6342, 6962, 7657, 7816, 8488, 8508, 9346, 10452, 10535, 11468, 12098, 12631, 12741, 13032, 14411, 14664, 15768, 15871, 16912, 17460, 18764, 19210, 20096, 22864
  5. RDL cw and BEE (T600):(simulkeyed with 21.1) 8130, 10164
  6. 3196, 5846
  7. 5178, 8436
Parallels
  • 14411 == 12832
  • 10163 == 10534


Frequency List

The T600 Frequencies list contains over 400 T600 frequencies. Winzip or compatible is needed to uncompress it


Contributors

This list made possible by the logs of Wolfgang, Antonio, MCO, Thomas, and many other udxf contributors, as well as other online sources. Included are frequency (all cf), call (if known), location (usually from hfdf), and other notes relevant to the pursuit of T-600 reception. Dupes and obvious bfo offset error was adjusted where possible. All are CIS Navy save where noted.

Courtesy N0SYA and the UDXF

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