ENIGMA 2000 Newsletter - Issue 23

July 2004
Articles, newsreports and Items of interest :enigma2000-owner@yahoogroups.com

Polytones

XP Daily Log [Insert M for message, N for Null message, add ‘o’ if from other source. Underscore indicates 50^th tally mark].

MONTH: May 2004

	AM		Sch1
1.	0600z	9388	2000z	14598
2.	0620z	10688	2020z	13415	1434z	16086
3.	0640z	12088	2040z	11532
	ID360		ID545		ID603

01
02[Sun]
03
04	01463/00285		N
05
06			N
07	01475/00203
08
09[Sun]
10
11	N		N
12					N/09955
13			N
14	N
15
16[Sun]
17
18	N		N
19					NRH
20			N
21	03721/00153
22
23[Sun]
24
25	02942/00271		N
26					NRH
27			N
28	00413/00229
29
30[Sun]
31

The month of May saw the finding of an XPH transmission [tnxRNGB] on 12/05

The schedule 1 sendings have remained Null. Since the last message sending on 08/04 [01802/00227]. It was around this time that 474 net was discovered – like XPH only to disappear again. Were these two offerings special transmissions?

MONTH: June 2004

	AM		Sch1
1.	0600z	9488	2000z	14598
2.	0620z	11018	2020z	13415
3.	0640z	12118	2040z	11532
	ID401		ID545
01	N			N
02
03				N
04	00285/00163
05
06[Sun]
07
08	09522/00255		N
09
10				N
11	00367/00205
12
13[Sun]
14
15	07028/00143		N
16
17				N
18	00621/00323
19
20[Sun]
21
22	00621/00323		N
23
24				N
25	00864/00217
26
27[Sun]
28
29	08485/00173		N
30

0600z: 9488kHz is a poor frequency subjected to BC QRM from Radio Sweden.
0600z 25/06 Excellent sigs – even audible above R.Sweden in South London.

The XP[1] schedule frequencies remain the same as those used in May and were also used in 2003. This schedule remains devoid of any message for the last two months, nonetheless providing a strong signal for its null sendings.

XPA

The article in this issue covers XPA and outlines the results extrapolated from a number of samples taken by RNGB, JoA, AnonUK and PLondon. Numerical analysis was undertaken separately, and then compared by members – the results matching.

Our analysis was completed by 14^th December 2003 and checked against the 1750z sending on 18/12/03.

XPH

Absent for some months was XPH, this station has once again been heard by RNGB. The message he shows appears to be a null message format that has an additional group attached:

16086kHz

1434z

12/05

[603 603 603 000 09955 repeated] The sending ended at 1637z RNGB

When RNGB sent the mp3 file it was immediately looked at on the spectroscope and there were the tones

1038	1234	879	1304	1234	992	1234	1304	1234	1202	992	954	992
6	0	3	space	0	rpt	0	space	0	9	rpt	5	rpt
6	0	3		0	0	0		0	9	9	5	5

The structure of the null message was different. After the usual 603 000 cycle tones were present to show 09955. What’s that about – naming of the recipient?

Despite monitoring by AnonUK, JoA and PLondon it was not heard on subsequent sendings, resulting in NRH, as can be seen from the May polytone chart.

XPL

RNGB heard the low buzzing, submitting a sound sample for identification. He also raised another interesting point.

11159kHz

2100z

01/06

After the rhythmic tomes finished a data like signal immediately started; listening to the sample provided gave no clue as to whether it was part of the signal or just happened ‘to be there.’ [Tnx RNGB]

Tom Norris offered a possible sighting with a sample. Although the sample was unable to be heard by E2k for some reason RNGB obviously heard because he stated via group that it sounded like XPL:

11192kHz

2325z

03/06

Tom NorrisUS

Ary suggested that XPL is an OTHR facility based on Cyprus.

POLYTONE Info from PoSW:

PoSW wrote a short report on the polytones which we reproduce in full here. Note his mention of an unknown Tone station. From what Peter describes sounds very much like XPA, the analysis of which appears as this issues ‘E2k Article’.

Peter wrote

Tone transmissions;- the Tuesday and Thursday XP schedule starting at 2000z seems to be stuck in a "Null" rut; I have heard quite a number of transmissions in May and June and they have all been of the "No message" variety with a total transmission time of about 2 minutes 19 seconds.

I thought that the X06 6-Tone repeating station had gone because I could not find it at all during May despite a lot of tuning around but it showed up on Friday 18-June with several transmissions in rapid succession, the first heard since late April.

What seems to be a new kind of Poly Tone transmission was heard several times in early June; I thought the mode was some kind of frequency shifted carrier when first heard but may have been in single sideband suppressed carrier, Whatever it was it needed to be copied with the BFO/CIO on in order to make audible tones. Later transmissions were good, honest amplitude modulation with both sidebands and could be heard in AM receiver mode. The complete log of these transmissions is shown below;-

1-June-04	Tuesday	1748 UTC	12,205 KHz	some kind of Poly Tone transmission, needed to be copied in USB to make it audible, ended shortly after 1750z.
		1901 UTC	12,205 KHz	same kind of signal again, at first had a two tone shift of about 2 seconds of one tone then one second of another repeated for a while then went into a routine which sounded something like the playing of a flute. Ended after 1905z.
2-June-04	Wednesday	1831 UTC	11,140 KHz	same kind of signal as heard yesterday on a different frequency, went into "Flute" mode just after 1832z, ended 1835 and 30 seconds UTC.
7-June-04	Monday	1819 UTC	12,197 KHz	similar to transmissions heard before but this had an AM modulated carrier. Weak signal, difficult copy.
		1830 UTC	11,139 KHz	also AM with both sidebands, carrier was noted a bit before 1830z, weak signal, started off with 2 minutes of a pulsing noise with an distinct accentuated beat every 2 seconds or so, then into a poly-tone type signal ending at 1837z with a few seconds of a tone sequence at a higher pitch than the bulk of the transmission.
8-June-04	Tuesday	1830 UTC	11,139 KHz	as heard yesterday, stronger signal, peaking at S8, AM mode, ended 1837z.
		1904 UTC	10,681 KHz	similar kind of signal on another frequency, strength S7-S8, AM, ended a bit before 1907z.

[Tnx PoSW]