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http://web.archive.org/web/*/http://tiki-lounge.com/~ben/radio/kg84.html ,
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Spetznaz нашел это:
KG-84 Crypto
One of the more frustrating things about decoding digital signals on HF is how many of them are encrypted using online cryptography. Such signals when demodulated consist of a random string of bits, and as such, aren't usually very interesting to decode. However, in some cases, analysis can be done to determine the type of encryption used, and thus infer the identity of the transmitter.
Actually, at least in its synchronous STANAG-4481 incarnation, the entire header is 64 bits long and is followed by two groups of 4 repeated 64-bit quantities, a number of one bits, and then into traffic. This causes the signal to briefly have an ACF spike at 64 bits:
KG-84 Networks
Many STANAG-4481 type 75/850 stations sending KG-84 in block cipher mode seem to be "simulcasted" from various stations. Sometimes the transmissions are delayed a bit relative to each other. At the time of this writing, here are some KG-84 networks identified by various monitors (Jim, Darren, myself, and others):
Shore channels
RN Fleet broadcast:
4711 ) UK origin,
9000 ) out of Inskip
11123 ) or Skelton
15021 Parallel, but delayed (Cyprus?)
19350 Probably Gibraltar
Separate broadcast: 14403.7 and 17401.7 out of Cyprus
(currently sending KG-84 in async rather than sync ITA-2)
RAF No 2 Group MATELO Broadcast:
82.8
4730
6757
8986
11211
23236
Unid net 1:
tx 1 16264.5 12120 10428 9075 5340
tx 2 18558 16047 7593 ( 200ms behind tx 1 )
Unid net 2:
tx 1 9962
tx 2 9085 5345 ( 350ms behind tx 1)
Unid net3:
Day (UK) Night (UK)
8071 4882
18536 10927
Unid net 4:
19350 Day (UK)
9030 Intermediate Day/Night (UK)
7792 Night (UK)
Unid freqs with no known parallels:
9338 9215.2 9200 6720 11213
Ship channels
Nationality Working CARB Channel No
----------- ------- ---------------
2121.4 Dutch PBB/PBC 02A
2214 French FUC 2780 kHz
2259 French FUE 2789 kHz
2259.4 Dutch PBB/PBC 02B
2487 RN MTI 02
2662.4 RN GYA/MGJ 02P
2760.4 RN GYA/MGJ 02Q
3806.4 RN GYA/MGJ 03P
4153 RN MGJ 04 3390 kHz
4153.9 RN GYA/MGJ 04P
4154.3 German DHJ59 (3-channel VFT) *
4155 Dutch PBB/PBC 04A
4161 Dutch PBB/PBC 04B
4165.6 French FUE 4295 kHz
4171.5 Dutch PBB/PBC 04C
4879.9 RN GYA/MGJ 04Q
6237.5 Dutch PBB/PBC 06A
6242 Dutch PBB/PBC 06B
6246.9 RN GYA/MGJ 06P was 6242.8 kHz
6259 French FUE 6348 kHz 150 Bauds
8144.9 RN GYA/MGJ 08P
8179.9 RN GYA/MGJ 08Q
8310.6 French FUV 8568 kHz
8314.6 French FUF 8478.5 kHz
8321 Dutch PBB/PBC 08A
8324 Dutch PBB/PBC 08B
8330.6 French FUG 8453 kHz 75/150 Bauds
8334.6 French FUX 8475.5 kHz
8335.3 German DHJ59 (3-channel VFT) *
8336 Unid 8443 kHz (75 Baud ACF 64)
8337.5 Dutch PBB/PBC 08C
8339 RN GYU 08A (?)
12369 French 6WW 12857 kHz
12374.6 French FUX 12691 kHz
12375.5 Dutch PBB/PBC 12B
12377.9 RN GYA/MGJ 12P
12381.9 RN GYA/MGJ 12Q
12389 RN GYU 12A
12398.6 French FUV 13042.5 kHz
12402.5 French FUF 13031.2 kHz
12410.6 French FUG 12666.5 150 Bauds
12415.3 German DHJ59 3-channel VFT *
16550.9 RN GYA/MGJ 16P
16559.6 French FUF 16961.5 kHz
16566.9 RN GYA/MGJ 16Q
16576 Dutch PBB/PBC 17B
16595.6 French FUV 16904.9 kHz
16598 French 6WW 16951.5 kHz
16607.6 French FUG 17180 kHz (75/150 Bauds)
18281 Danish OVK Simplex CW and 75 Bauds.
22193.9 RN GYA/MGJ 22P
25142.9 RN GYA/MGJ 25P
Вопроcы:
Где можно взять еще понятную инфу по KG-84-???
Есть ли где в инете записи KG-84, желательно WAV-???
На каких еще частотах, и какими сигналами работает KG-84-???
Что такое STANAG-4481 ???
