31 December 2014

Logs: latest from 2014

02815.0 MTI  : Royal Navy Plymouth, G 2040 USB/STANAG-4481 KG84C encrypted messages
03831.0 ZLST : Zoll-Leitstelle Cuxhaven, D 1831 ALE/USB clg ZKNI Zollboot Kniepsand (28Dec14) (AAI)
03831.0 ZLST : Zoll-Leitstelle Cuxhaven, D 1839 ALE/USB clg ZJAD Zollboot Jade (28Dec14) (AAI)
03831.0 ZHID : Zollboot Hiddensee, D 1923 ALE/USB clg ZLST Zoll-Leitstelle Cuxhaven + reply (28Dec14) (AAI)
04553.5 ZLST : Zoll-Leitstelle Cuxhaven, D 2158 ALE/USB clg ZRUE Zollboot Ruegen (27Dec14) (AAI)
07803.0 ---  : unid French military 1410 ARQ-E/184.6/850 idles
07877.0 RS0013D : unid prob Macedonian Military, MKD 1410 ALE/USB clg CS004A (30Dec14) (AAI)
07877.0 CS004A : unid prob Macedonian Military, MKD 1419 ALE/USB clg RS0013D (30Dec14) (AAI)
07877.0 CS0 : 1426 unid prob Macedonian Military, MKD ALE/USB clg RS0012D (30Dec14) (AAI) 
07877.0 CS004A : prob Macedonian Military, MKD unid 1501 ALE/USB clg BS008C1 (30Dec14) (AAI)
07890.0 CS001: unid prob Macedonian Military, MKD 1425 ALE/USB clg RS006 flwd by handshake + MIL-STD 188-110A data
07957.5 ---  : unid French military 1335 ARQ-E3/184.6/388 idles
08190.0 RHP  : Royal Saudi Air Force, ARS 1708 ALE/USB clg AAP (28Dec14) (AAI)
08170.0 X06  : Russian Diplo, RUS 1735 6-MFSK/Mazielka 6 tone selcall sequence "145632" (28Dec14) (AAI)
09038.0 TSCP : US Army Aviation Camp Bondsteel Kosovo, KOS 1433 ALE/USB sndg (27Dec14) (AAI)
09038.0 H13  : unid US Army 1535 ALE/USB clg TSCP flwd by TSCP reply to H13 (27Dec14) (AAI)
11489.0 ---  : Russian intel, RUS 1631 FSK/200/1000 Link ID 20501 28th of month Msg Number 002 Msg Type 03008 (28Dec14) (AAI)
12729.9 UTT1 : Odessa Radio, UKR 1340 CIS-50/850 encrypted (30Dec14) (AAI)
12948.0 ---  :Russian 1315 MPSK-12 AT-3004D data nd (30Dec14) (AAI)
13242.0 200202 : unid 1404 ALE/USB sndg (30Dec14) (AAI)
13575.0 ---  : Polish Intel 1405 FSK/100/740 null message (28Dec14) (AAI)
13242.0 200202 : unid 1404 ALE/USB sndg (30Dec14) (AAI)
13951.0 813 : Enigma E07 1240 USB/J3E "813 813 813 1...79286 26605 000" (30Dec14) (AAI)
15852.0 HMG : unid Algerian Air Force, ALG 1236 ALE/USB clg CM3 (31Dec14) (AAI)
15852.0 BLD : unid Algerian Air Force, ALG 1240 ALE/USB clg CM3 rptd 1303 (31Dec14) (AAI)
16224.5 --- : MFA Cairo, EGY 1430 ARQ/Sitor-A clg QQTX Prague embassy (31Dec14) (AAI)
16318.6 --- : North Korean Diplo, PRK 1336 DPRK-ARQ/600/600 (31Dec14) (AAI)
20562.0 --- : Russian Intel, RUS 1300 FSK 200/500 null mesages "00000++++++++++162)5761" (27Dec14) (AAI)

27 December 2014

Logs: 24,26 December

08040.0 GYA: Northwood Radio, UK 1745 F3C/FAX 120/576 TAFs "...BECMG 2615/1618 12011KT..." (26Dec14) (AAI)
09074.4 --- : US Air Force Croughton, UK  1420 STANAG-4481 75bd/850 encrypted tfc (24Dec14) (AAI)
12140.0 STAT21: Tunisian MOI Net, TUN 0922 ALE/USB clg TUD then into PACTOR-II (25Dec14) (AAI)
12245.0 XSS: 1023 ALE/USB sndg (26Dec14) (AAI)
12353.0 --- : unid NATO modem 1445 USB/STANAG-4285/600L encrypted tfc (24Dec14) (AAI)
12568.2 PBB: Dutch avy Den Helder (via Goeree), HOL 1450 USB/STANAG4285/600L encrypted tfc (24Dec14) (AAI)
12580.5 --- unid vessel 1125 PACTOR-III/SL1/Long In contact with OSY (26Dec14) (AAI)
13019.0 HEB43: Global Link Berne Radio, SUI 1240 PACTOR-III channel free idles (26Dec14) (AAI)
15870.0 --- : Russian/CIS Mil 0855 USB/T206-Moroz 100/500 (25Dec14) (AAI)
16094.0 --- : Swiss Diplo, SUI 1355 MIL-STD 188-110A data "IDFF CCC DE SHR BVR" (26Dec14) (AAI)
16148.5 --- : North Korean Intel, KRE 0835 USB DPRK-ARQ 600/600 then into 1200/1200 (25Dec14) (AAI)
16154.0 X06: Russian Diplo, RUS 0855 6-MFSK/Mazielka 6 tone selcall sequence "153624" (25Dec14) (AAI)
16175.0 --- : Russian/CIS Mil 0825 USB 6-channels VFT (25Dec14) (AAI)
16237.0 --- : MFA Cairo, EGY 1237 ARQ/100/200 selcall TVVP Egyptian Embassy Abu Dhabi (24Dec14) (AAI)
18048.0 --- Russian Gov/Intel 1330 FSK/75/500 messages (26Dec14) (AAI)

16968.2 XPA2 1400 (24Dec14) (AAI)
00563 00077 26100 66068 80360 57855 44216 83357 76017 55295 76537 92929 05104 68720 63562
39257 00403 30200 45730 12078 53364 71571 17473 79030 67495 50358 86284 37463 57496 54256
55129 14997 40364 42572 79974 58299 16872 94211 42062 55672 89754 22094 78209 74584 32667
27222 58470 29480 84000 21040 26756 33203 37475 89648 53341 95375 15624 50502 89855 61887
12626 79282 17996 69944 91602 18653 22315 65592 56812 44457 80689 95700 45901 51357 02259
01928 40044 50338 34917 35554

26 December 2014

PACTOR-II (FEC, ARQ)

PacTOR-II is a modern, narrow-band and reliable two-channel phase-shift keyed mode which covers the needs of both amateur and professional users for a secure and fast data transmission system. The good performance during disturbances and a small bandwidth are achieved by the use of a two channel DPSK modulation. PACTOR-II is suited to the transfer of large files rather than hand-typed text. The data may be transmitted as ASCII without compression or can be compressed with HUFFMAN or PSEUDO-MARKOV compression. In addition, run length encoding (RLE) is included.

As propagation conditions change, PacTOR-II ARQ (as well as the FEC option) is able to select the most suitable modulation (DBPSK, DQPSK, DPSK.8, DPSK-16 and PSK-16) and the length of the frame (SHORT or LONG): under very poor conditions PACTOR-II changes to DBPSK short block, which has a frame duration of 1.25 seconds and carries only a small amount of data; for very good conditions, DPSK-16 with a long frame is used, which transfers a large amount of data and needs 3.75 seconds.
PacTOR-II ARQ sonagram
To achieve a data transmission which is robust against all kind of disturbances, a decision must be made, whether a short or a long frame-length should be used. The resulting input bit stream is then terminated with a convolutional encoded and interleaved CRC-sum. After that, the symbol mapping for the two channels is done, and then this signal is applied to the DPSK or PSK demodulator.

PacTOR-II FEC DQPSK

PacTOR-II FEC DPSK-8
Where in PacTOR-II ARQ an acknowledge message from the receiving station is required, PacTOR-II-FEC has no acknowledge return channel. Thus, the receiving station must be able to do all the error correction. This is achieved by using a Viterbi decoder with k = 9 and code rate = ½. Interleaving protects the transmission against fading. Using a DQPSK modulation is a good compromise when looking at the amount of bits transmitted and the necessary signal-to-noise-ratio.

24 December 2014

Logs: short log 23 December

14039.2 01189: Enigma XPA2 1402 MFSK-16/20Bds "01189 00093 43982... 26666"
13390.0 --- : T-600/Moroz-1a 50/500 idling "RYRYRYRY"
22447.0 FUV: French Navy Djibouti, DJI USB/STANAG-4285/600L "ZCZC OO FAAA DE FUV ZNR UUUUU"
17444.0 --- : 1400 FSK 200/1000 Link ID 32799 "01972 00000 00000 01228 14796 35619 00893 20342"
08003.0 --- : unid 1425 USB/CIS-75/250 nd
08224.0 --- : unid 1435 MIL-STD 188-110A messages


22 December 2014

Logs: 17-22 December

04225.7 IDR: Italian Navy Roma, I 2105 USB/STANAG-4285/600L CARBs (20Dec14) (AAI)
04618.0 BPLEZS: Bundespolitzei Cuxhaven, D 1938 MIL-STD 188-141A/USB clg BP25 flwd reply to BPLEZS (21Dec14) (AAI)
04618.0 BP22: Bundespolizei Police Boat Neustrelitz, D 1939 MIL-STD 188-141A/USB clg BPLEZS (21Dec14) (AAI)
04618.0 BP21: Bundespolizei Police Boat Bredstedt, D 1949 MIL-STD 188-141A/USB clg BPLEZS flwd reply to BP21 (21Dec14) (AAI)
05091.0 813: Enigma E07 1740 J3E/USB "813 1 322 68 70458 44582...46075 01554 000 000" (21Dec14) (AAI)17/12/14

05295.5 AB2: unid 2029 MIL-STD 188-141A/USB clg NI9
07497.5 --- : Unid NATO modem 1935 USB/STANAG-4285/600L encrypted (18Dec14) (AAI)                   
07734.0 --- : unid NATO TADIL modem 1520 USB/LINK-11/CLEW nd (21Dec14) (AAI)
07821.0 --- : Russian Intel 1550 FSK/200/1000 Link ID 20501 "34156 00000 00000 00358 12857 36342 00893 16476" (21Dec14) (AAI)
08180.0 --- : Unid Number Station 1315 USB female english "... 274 274 274 274 ..." (18Dec14) (AAI)                   
08780.0 --- : Israeli Navy, ISR 1930 188-110A QPSK/Hybrid Modem (18Dec14) (AAI)

11468.0 RDL: Russian Navy Smolensk, RUS 1305 T-600/BEE/20/200 Message Sync 0x1414bebe952 (22Dec14) (AAI)
11470.0 --- : Russian Air Force, RUS 1255 T-206/Moroz-1a 50/500 idling (22Dec14) (AAI)
13381.0 --- : Russian Gov/Intel 1405 FSK/75/500 (17Dec14) (AAI)                   
15967.0 08065: Enigma XPA2 1400 MFSK-16/20bps "08065 00001 00000 10140" (20Dec14) (AAI)
16864.5 OSY: SailMail Brugge, BEL 1240 PACTOR-III "OR4092 de OSY" (19Dec14) (AAI)

17024.4 --- : Russian Mil, RUS 1320 AT-3004D modem encrypted tfc    (19Dec14) (AAI)
17471.0 X06: Russian Diplo 1330 6-MFSK/Mazielka 6 tone selcall sequence "216354" (22Dec14) (AAI)
20562.0 --- : Russian Intel, RUS 1302 FSK/200/500 null message 00000++++++++++162)5761 (20Dec14) (AAI)



21 December 2014

PACTOR-III

PACTOR-III is an adaptive transmission mode that provides higher throughput and improved robustness compared to PACTOR-I and –II, both designed for operation within a bandwidth of 500 Hz. To achieve the improved features, PACTOR-III uses up to a maximum of 18 tones spaced 120 Hz, thus occupying a maxmum bandwidth of 2160 Hz.

System: PSK, Half-duplex synchronous ARQ
Speed: 100.0 Baud
Modulation: DBPSK, DQPSK; 2, 6, 14, 16, or 18 tones (see the notes about the Differential PSK at the end of the post)

PACTOR-III two tones sonagram
PACTOR-III two tones spectrum

Six so-called Speed Levels (SL) are specified, which are predefined combinations of modulation type (B = DBPSK or Q = DQPSK), channel coding and number of tones (2, 6, 14, 16, or 18) as well as positions of tones
:


For all Speed Levels, the modulation rate of each tone is 100 Baud.

As propagation conditions change, PACTOR-III is able to select the most suitable speed level. Under very poor conditions it changes to speed level 1, whereas, under optimum conditions, speed level 6 is used. As in the PACTOR standards, the frame durations are 1.25 seconds (short cycle) and 3.75 seconds (long cycle for data mode). A long path option is available to enable contacts up to 40.000 km. In such a case, the duration of the short and long cycle is extended to 1.4 and 4.2 seconds, respectively.

Initial link establishment is achieved using the frequency shift-keying (FSK) protocol of PACTOR-I, corresonding to the lowest protocol level. If both calling and called stations are capable of PACTOR-III, automatic switching to this protocol is done.
For data transmission, which is robust against all kinds of disturbances, a decision must be made, whether a short or a long frame-length should be used.
(source:Wavecom manual)
 
Below an example from a my reception of OSY Pactor-III transmission: note the Speed Level (SL1) and the lenght of the frame (LONG) used:






20 December 2014

CIS FSK 200Bd/500


FSK 200/500  mode is believed to be used by one of the Russian intelligence services. It transmits data using FSK (Frequency Shift Keying) modulation with the ITA-2 alphabet (with 1.5 stop bits) at a speed of 200 baud with a shift of 500 Hz.
FSK 200/500 messages are transmitted with fixed schedules on frequencies which change monthly. The latest information on the times and frequencies of these schedules can be found online here.

Rivet can decode FSK 200/500 messages directly from a radio in USB mode connected to a soundcard line input or from a WAV file that is mono and with a sample rate of 8000 Hz. The program calibrates itself by looking at the incoming audio and then starts to decode and display the message on the screen. Once a message is decoding do not retune your radio until the message is complete.
A short recording of a an FSK/200/500 transmission may heard here

When there is no message to send in a schedule the line 

 00000++++++++++162)5761

will be sent continuously for seven minutes as in the following decode output from Rivet:
 
FSK/200/500 null traffic
 When there is a message offline encryption is sent which starts like this:

00000++++++++++188=8331
52281013891141343 =8432
92874574809254333 =8573
814347960943078155=8794

The number to the left of the = sign appears to be the encrypted traffic and consists of 17 or 18 digits. The number to the right is interesting also though. The last digits of this is the line number which you can see incrementing. The messages ends like this:

28870268039372698 =81275
423345851935701126=86276
88837514787689596 =81277
26158186121423068 )57678

Certain 3 digit codes appear to have special meanings. The ones we have come across so far are:

162 Start of a null message
188 Start of a message
576 End of message or null

 (source: Rivet wiki)



17 December 2014

Logs: 15-16 December

08681.0 TSM: Israeli Air Force, ISR 1456 MIL-STD 188-141A/USB sndg (16Dec14)
11000.0 RIW: Russian Navy HQ, RUS 1427 CW "RIW QYT4 QMO K" (16Dec14)
11082.0 --- : unid 1422 CW strings groups of Vs (16Dec14)
13951.0 E07: Enigma E07 1246 J3E just outro "000 000" (16Dec14)
14538.0 06762: Enigma XPA2 1300 MFSK-6 "06762 00001 00000 10140" (16Dec14)
16684.5 OSY: SailMail Brugge, BEL 1315 Pactor-III "S8509 de OSY QTC: 5 13248 7862" (15Dec14)
15844.0 CTF: Algerian Air Force, ALG 1312 MIL-STD 188-141A/USB clg CM1 (16Dec14)
15844.0 CM1: Algerian Air Force, ALG 1315 MIL-STD 188-141A/USB clg CTF (16Dec14)
17318.5 --- : North Korea Diplo, KRE 1335 DPRK-ARQ 600/600 + 1200/1200 msgs nd (16Dec14)
19571.4 --- : Russian Air Force 1507 T-206 Moroz-1b/50/500 ACF 4 nd (16Dec14)
20056.7 --- : MFA Cairo, EGY 1343    CODAN-Chirp selcall DST 33302 embassy Accra (15Dec14)


15 December 2014

DPRK-ARQ 600/600 (KEGURI)

Known as DPRK-ARQ and DPRK-FEC, DPRK-ARQ 600bd/600 is a proprietary two-tone FSK system with a 600 Hz shift. This system is used by the Democratic People Republic of Korea (so the abbreviation DPRK) with 600 Baud and, as said, 600 Hz shift for their HF diplomatic traffic in ARQ mode on LSB.
DPRK-ARQ 600/600 sonagram and spectum

The block length is 217 ms, the pause 323 ms so that the total packet has a length of 540 ms. Each bit has a length of 1.67 ms so that one packet has 130 bit.



Sometimes they use DPRK-ARQ 1200 with 1200 Baud and 1200 Hz shift (DPRK-ARQ 1200/1200):


A short recording of a my reception on 14442.5 Khz, may be heard here

Logs: 04-14 December

02813.5 --- : unid NATO modem 2107 STANAG-4481 KG-84C messages 05/12/14
03862.2 JWT : Norwegian Mil, NOR 2040 USB/STANAG-4285/300L encrypted 10/12/14
04338.0 FUB : French Navy Paris, F 2135 FSK/50/850 encrypted 05/12/14
07745.0 TBB : Turkish Navy, TUR 1430 USB/STANAG-4285/600L/N1 CARBs messages 08/12/14
07833.0 201E3F : French airforce, F 1430 USB/ALE clg MOBE3F flwd by MIL-STD 188-110a/300/S data 11/12/14
07999.9 QRP : unid beacon/marker 1515 CW id "QRP" 13/12/14
08000.3 --- : unid NATO 1500 USB/STANAG-4285 sending null traffic 08/12/14
08015.6 --- : Italian Coast Guard SAR, I 1430 FSK/USB unid selcall messages 07/12/14
08059.0 MV50 : Algerian Military, ALG 1447 USB/ALE clg MV52 11/12/14
08093.0 NKW : US Navy Diego Garcia, DGI 2050 FSK/50/850 encrypted 05/12/14
08123.5 NSS : Nato Allied Joint Force Command Naples, I 1506 USB/STANAG-4285/600L/N1 CARBs message 08/12/14
08132.0 BPLEZS : Bundespolitzei Cuxhaven, D 1454 USB/ALE clg BP21 11/12/14
09180.0 106003 : Turkish Civil Defense, TUR 2115 ALE/USB sndg 06/12/14
09200.0 2001 : Moroccan Civil Protection, MRC 2003 ALE/USB clg 24081 06/12/14
09240.0 306023 : Turkish Civil Defense, TUR 2109 ALE/USB clg 326013 06/12/14
09240.0 378013 : Turkish Civil Defense, TUR 2111 ALE/USB sndg 06/12/14
10168.0 783 : Algerian Air Force, ALG 1304 ALE/USB clg CM5 10/12/14
10175.0 332018 : Turkish Civil Defence, TUR 1323 ALE/USB sndg 10/12/14
10344.0 --- : Swiss diplo 1405 MIL-STD 118-110A/300bps messages 10/12/14
10370.0 SPI : Polish Military, POL 1302 ALE/USB clg LCR154 10/12/14
10370.0 SPI : Polish Military, POL 1312 ALE/USB clg SNB813 + handshake 10/12/14
10415.0 --- : Unid 1410 CW Sending string of Ts, no callsign 12/12/14
10535.0 RDL : Russian Navy Smolensk, RUS 2130 T600/BEE/50/200 Message Sync 0x1414bebe952 06/12/14
10543.0 RCV : BSF HQ Sevastopol, UKR 1357 CW sea bullettin 10/12/14
10712.0 RKA73 : Russian Navy Pskov, RUS 1425 T600/BEE/50/200 Message Sync 0x1eb41eb2952 06/12/14
11056.2 --- : prob. Italian GC, I 1330 FSK/100/170 selcalls (every minute) 13/12/14
12197.0 --- : unid NATO modem 1910 TADIL/LINK-11/SLEW serial modem 07/12/14
14538.0 XPA2 : Enigma XPA2 1302 MFSK-16 msg "01515 00001 00000 10140" 14/12/14
16009.7 --- : MFA Cairo, EGY 1335 CODAN-9001/QPSK messages 06/12/14
16086.7 --- : MFA Cairro, EGY 1336 CODAN-CHIRP selcall to 00009 embassy Kuwait 14/12/14
16116.0 X06 : Russian Diplo 1415 6-MFSK/Mazielka 6 tone selcall sequence "215346" 12/12/14
16316.1 --- : Russian Mil (prob Kaliningrad), RUS 1447 CIS-50-50/250 crypto msgs 12/12/14
16809.0 WLO : Mobile Marine Radio Alabama, AL 1240 CW/ARQ CW station ID 11/12/14
16830.5 SVO : Olympia Radio Athens, GRC 1312 FEC/Sitor-B news in Greek 11/12/14
17094.0 AQP7 : Marine Karachi, PAK 1325 CW "VVV DE AQP7" 11/12/14
17180.0 FUG : French Navy La Regine, F 1330 USB/STANAG-4285/600L/5N1 "FAA DE FUG W TESTING" 09/12/14
17555.0
: Unid NATO 1520 USB/STANAG-4285/1200L crypto 12/12/14
18150.9 --- : Russian diplo, RUS 1750 USB/Serdolik MFSK-34/40 baud crypto 14/12/14
19127.0 --- : MFA Cairo, EGY 1255 Sitor/ARQ clg KKVA Embassy Lagos 10/12/14
22864.0 RDL : Russian Navy Smolensk, RUS 1530 T600/BEE50/200 Message Sync 0x1414bebe952 13/12/14

beacon/marker QRP



ARQ/Sitor-A traffic between Cairo and Beijing Egyptian Embassy

14 December 2014

OSY - Sailmail Radio (Bugge, Belgium)

The callsign OSY is a Sailmail Radio located in Brugge (Belgium) and belonging to the Sailmail - Global SSB Email service (http://www.sailmail.com).
OSY uses 4 transceivers and operate the frequencies 6330.5, 8422, 12580.5, 16684.5 (KHz/USB) providing its email service in Pactor, Pactor-II, Pactor-III, and Pactor 4.
(take a look here for technical information about PACTOR-III systems)

But, waht is a sailmail radio?
The SailMail Association is a non-profit association of yacht owners that operates and maintains two FCC licensed, two-way, private coast stations in the Maritime Mobile Radio Service.  The Association provides radioprinter (e.g. Internet email) communications for its members on a cooperative basis, in order to meet the private business and operational
needs of the members' yachts.

Every SailMail station provides service in Pactor, Pactor-II, Pactor-III, and Pactor 4,  standard Pactor selcall mechanism and periodic CW identification. Ships use their allocated maritime callsigns as addresses.

Below a decoded Pactor-III transmission just from OSY: destinations ship is S8508





Russian Navy radio Centers

Here is a list of the main Russian Navy radio Centers, set your web/mail browser to read cyrillic in order to see the Russian names of these sites correctly.

Radiocoverage area World wide
N  р/с 2201 (poss 2200)

Москва / Moscow
РИВ / RIW (+ RJE56)
Прогресс / Progress


Radiocoverage area Northern Fleet,
Arctic regions, North Atlantic Ocean, North sea, Norwegian Sea, white Sea, Northern inland waterways
N  р/с 2202

Североморск /Severomorsk
РИТ / RIT (+ RJH57 ?)
Вольфрам /Wolfram

Северодвинск / Severodvinsk
РЙД-99  / RJD99
Цветок / Swetok, "Flower"

Иоканьга*  / Iokanga aka Jagernaja / Ostrovnoj aka Gremikha aka Murmansk-140
РЙД-80  / RJD80
Светлана / Svetlana

Полярный   / Polyarny
РИР-2  / RIR2
Природа / Priroda, "Nature"

Мурманск  / Murmansk
РЙД-56  / RJD56
Флюгер / Flüger, "Vane"

Radiocoverage area Baltic Fleet

Baltic Sea, North sea, English Channel, Inland waterways
N  р/с 2203

Калининград / Kaliningrad
РМП  / RMP (+RJD71?)
Вестник / Westnik, "Herald", "Messenger"

С-Петербург / St. Petersburg
РЙД-85  / RJD85
Скакун  / Skakun, "Race horse", "Jumper"

Балтийск  / Baltiysk
РЙД-69  / RJD69
Искатель / Iskatelx, "Seeker"

Radiocoverage area Black Sea Fleet
Black Sea, Mediterranean Sea, Caspian Sea, Red Sea, inland waterways
N  р/с 2204

Севастополь / Sevastopol
РЦЖ / RCV  
Гвоздика / Gwozdika, "Cloves"

Новороссийск / Novorossiysk
РЙЕ-65  / RJE65
Тополь / Topolx, "White Poplar"

Radiocoverage area Caspian Flotilla
Caspian Sea, inland waterways
N   р/с 2205

Астрахань  / Astrakhan
РЙД-52 / RJD52
Зазор / Zazor, "Clearance" or poss "Gap"

Radiocoverage area Pacific Fleet
North Pacific Ocean, South Pacific Oceans, Bering Sea, inland waterways
N   р/с 2206

Владивосток / Vladivostok
РЙС   / RJS
Грейдер / Grejder "Grader"

Стрелок  / Strelok aka Pavlovsk Bay
РЙД-97  / RJD97
Чинара / Öjnara "Sycamore"

П.-Камчатский  / Petropavlomsk Kamchatskiy
РЦЦ  / RCC
Деканат / Dekanat "Deanery (Deans office)"

Совгавань /  Sowgwanx aka Sovjetskaya Gavan
РЙД-93  / RJD93
Флейта / Flejta "Flute"

Владивосток / Vladivostok
РЙЦ-60  / RJC60
Юрист / Ürist "Lawyer (Jurist)"


Radiocoverage area Indian Ocean
Indian Ocean, South Atlantic Ocean, inland waterways
N   р/с 2207

Бишкек  / Bishkek
РЙХ-25  / RJH25
Сибиряк  / Sibiräk "Siberian"
From my good friend Trond Jacobsen in Norway.

13 December 2014

PACTOR-IV ARQ ("Dragon" modem)

PACTOR-IV ARQ ("Dragon" modem)
This is a proprietary standard developed by SCS GmbH & Co. KG, Hanau, Germany. This mode is used exclusively in SCS's P4dragon series of shortwave data modems, from here the nick name "Dragon". The P4dragon series modems are all backwards compatable with PACTOR I-III, and, like PACTOR II and III, uses PACTOR I SELCALL to establish connections with other modems.


This PACTOR-IV transmission was heard 13 Dec 14 on 16680.0 KHz/USB.

PACTOR-IV has very adaptive 10 speed levels (waveforms):
SL    Modulation   
1    - 2 Tone Chirp   
2    - DQPSK, Spread-16
3    - DQPSK, Spread-16    
4    - DQPSK, Spread-8   
5    - BPSK   
6    - BPSK   
7    - QPSK
8    - PSK-8
9    - QAM-16   
10  - QAM-32

Spread-16 and Spread-8 relates to the spreading factor of the modulation. It consists of modulation with 8 times or 16 times frequency spreading.  
Below the DQPSK spread-16 modulation 112.5 Baud in the two busrts signed as a and b in the sonogram:



At the lowest speed level, PACTOR-4 uses a newly developed 2-tone chirp modem. The chirp mode is robust against narrow band and part-channel interference, as well as against selective fading.






- the signal occupies more than 2000 Hz, with pilot tone at 3250 Hz (center frequency 1500 Hz)
- two "sweep" tones 1000 Hz spaced, rising time: 3,5 seconds from 500 and 1500 Hz to 1500 and 2500 Hz



Below the measurements of frequencies and times of the two sweep tone:



9 December 2014

CIS 75-250

CIS 75-250 (also known as CIS-75/75/250) is a Russian/CIS system supposed in use by Military in HF. As its name, this system use FSK modulation with 250 Hz shift and a (verified) 75 baud speed.


Traffic is encrypted.


7 December 2014

Unid possible Italian CG selcall ?

these are just the days of odd signals: after the "flute" heard some days ago, today a series of short (23 secs) FSK messages heard on 8015.6 KHz/USB from 1405z and it's still going on when I'm writing this post.


As you can see, the signal is composed of three state:
- preamble, 2 seconds
- the body of the message, 8 seconds
- the final part, 13 seconds 


schedule: every minute, from (mm):45 to (mm +1):08
FSK features: shift 170 Hz and apparent speed of 100 baud



The signal, file name is 8015_6_KHz.wav can be heard here

This appears to be some kind of (collective?) selcall used by the SAR of the Italian Coast Guard (Capitaneria di Porto - Guardia Costiera), a branch of the Italian Navy:
http://www.guardiacostiera.it/organizzazione/ 



6 December 2014

The Snake Charmer: a flute in HF


the signal has been spotted on 16927.0 KHz/USB from 1310 UTC, it's the so-called "snake charmer" here in the 16-step MFSK version. The transmission is likely sourced from HEB/WLO/WPG as reported in a detailed description reported here, although the author reports the 64 and 32 tones versions.
Below the 30 minutes long max-hold FFT spectrum that exhibits 16 tones, approximately 65 Hz spaced, in a range of 10 dB:

fig. 1 - max hold FFT spectrum

The signal is believed to be a test signal of some kind from WLO, WPG, or maybe HEB.  I just asked my friend MIke Chace-Ortiz (mco) and he replied that there have been 3 channels, all allocated to WPG active on 16MHz recently. The 22819.0 frequency (on USB) also remains active, usually with carrier from WLO direction but this also carries the same odd signal from time to time.

4 December 2014

Logs: 01-03 December

07744.0    CS002A    : prob. Macedonian Mil 1236 ALE/USB clg RSØØ4A + MIL-STD 118-110A data (01Dec14) (AAI)
07803.0    ---    : RFFXCC/ARMEES French Forces, F 1255 ARQ-E/186.6/850 msgs "DE RFFXCC ..." (01Dec14) (AAI)   
07957.5    ---    : unid French Forces, F 1335 ARQ-E/184.6/388 long time idling (01Dec14) (AAI)
08656.2    FUG    : French Navy Saissac, F 1250 STANAG-4481 KG-84c messages 03/12/14 (AAI)
10543.0    RCV    : BSF HQ Sevastopol, UKR 1255 CW mediterranean weather reports 03/12/14 (AAI)
11106.0    EK9    : Greek military, GRC 1205 ALE/USB clg GEF 03/12/14 (AAI)
11468.0    ---    : unid Russian Navy Kaliningrad, RUS 1330 T600/BEE/50/200 msgs sync 0x1414bebe952 03/12/14 (AAI)
11470.0    ---    : unid Russian Navy, RUS 1315 T206/Moroz-1a 50/500 long time idling 03/12/14 (AAI)
12311.0    203E3F    : French Air Force, F 1356 ALE/USB sndg 03/12/14 (AAI)
14556.0    RIW    : Russian Navy HQ, RUS 1446 CW "RIW NR 429 RPT k" 03/12/14 (AAI)   
14646.0    001    : unid asset unid Libyan net, LIB 1409 ALE/USB clg 004 03/12/14 (AAI)
14851.7    ---    : Pakistan Navy HQ Karachi, PAK 1450 PACTOR-II-FEC-8 /100/200 5 letters code groups 03/12/14 (AAI)   
16234.0    ---    : Russian Navy, RUS 1425 CIS-50-50/500 encrypted messages 02/12/14 (AAI)
16684.5    OSY    : Sailmail Brugge, BEL 1340 PACTOR-III traffic 02/12/14 (AAI)
17445.0    ---    : Russian Diplo/Intel 1405 FSK/200/1000 Link ID 32799 : 2nd of month 02/12/14 (AAI)   
18100.0    C3    : Moroccan military, MRC 1413 ALE/USB clg R3 (01Dec14) (AAI)
18390.0    ---    : Swiss Diplo, SUI 1424 ALE/LP + MIL-STD 188-110A encrypted messages 02/12/14 (AAI)
22387.5    SVO    : Olympia Radio, GRC 1510 FEC/SITOR-B Sport News in Greek (01Dec14) (AAI)
22447.1    FUV    : French Navy Djbouti, DJI 1430 STANAG-4285/600L "OO FAAA DE FUV" (01Dec14) (AAI)   
22850.0    AA1    : Israeli Air Force, ISR 1445 ALE/USB sndg (01Dec14) (AAI)
22941.2    ---    : unid NATO modem 1440 STANAG-4285/2400L ENCRYPTED (01Dec14) (AAI)


3 December 2014

Pakistan Navy


I heard such transmissions on 14851.7 KHz/USB at 1450z (3 December '14) from Pakistan Navy Karachi: they use PACTOR-II fec to send 5 LGs on their "cf/.7 kHz" channels, all messages sent twice.

PACTOR-II-FEC decoded (Pakistan Navy)

1 December 2014

my very first radio

I began to tune HF stations (48 meter band) using this simple-but-good radio receiver and a liong wire antenna out of my window. I still love it !