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Digisonde to Digisonde (D2D) Scheduling

NOTE: Move older entries to the end of the table

1. Pruhonice to Juliusruh

Date from Date to Sch offsets, min:sec Frequencies, kHz Switch Rules Comments
14 May 2023 - 02:35, 07:35, 12:35 6850 (04:30-19:00 UT), 2950 (19:00-04:30)
13 Feb 2023 - 02:35, 07:35, 12:35 6050 (06:30-18:00 UT), 2950 (16:00-06:30)
12 Oct 2022 - 02:35, 07:35, 12:35 6050 (06:30-16:00 UT), 2950 (16:00-06:30)
24 Mar 2022 - 02:35, 07:35, 12:35 5500 (06:00-18:00 UT), 2050 (18:00-06:00)
08 Mar 2022 - 02:35, 07:35, 12:35 5500 (06:00-17:00 UT), 2050 (17:00-06:00)
21 Oct 2021 - 02:35, 07:35, 12:35 4750 (06:30-16:00 UT), 2050 (16:00-06:30)
30 Mar 2021 - 02:35, 07:35, 12:35 4750 (05:30-18:30 UT), 2050 (18:30-05:30)
18 Feb 2021 - 02:35, 07:35, 12:35 4750 (06:30-16:00 UT), 3075 (16:00-06:30)
23 Nov 2020 - 02:35, 07:35, 12:35 4750 (07:30-15:00 UT), 3075 (15:00-07:30)
20 Oct 2020 - 02:35, 07:35, 12:35 4750 (06:30-16:00 UT), 3075 (16:00-06:30)
17 Sep 2020 - 02:35, 07:35, 12:35 4750 (06:30-17:30 UT), 3075 (17:30-06:30)
25 Jun 2020 - 02:35, 07:35, 12:35 4750 (05:30-18:30 UT), 3075 (18:30-05:30)
01 Apr 2020 - 02:35, 07:35, 12:35 5050 (05:30-18:30 UT), 2475 (18:30-05:30)
27 Nov 2019 - 02:35, 07:35, 12:35 5050 (08:00-14:45 UT), 2475 (14:45-08:00)
16 Apr 2019 - 02:35, 07:35, 12:35 5050 (6:30-20:00 UT), 2475 (20:00-6:30) missing or unreliable DOP data: 21.06.2019 09 UT - 17.07.2019 09 UT (unsynchronized operation)
27 Feb 2019 - 02:35, 07:35, 12:35 5050 (6:30-16:30 UT), 2475 (16:30-6:30)
09 Nov 2018 - 02:35, 07:35, 12:35 5050 (6:45-15:30 UT), 2475 (15:30-6:45)
02 Nov 2018 - 02:35, 07:35, 12:35 5050 (6:45-15:30 UT), 2450 (15:30-6:45)
24 Sep 2018 - 02:35, 07:35, 12:35 5050 (6:45-17:00 UT), 2450 (17:00-6:45)
28 May 2018 - 02:35, 07:35, 12:35 5050 (6:45-20:00 UT), 2450 (20:00-6:45)
04 December 2017 ... 02:35, 07:35, 12:35 5760 (7:30-15:00 UT), 2450 (15:00-7:30)
17 December 2015 - 02:35, 07:35, 12:35 7900 (8:00-14:00 UT), 5050 (14:00-15:30 & 7:00-8:00), 2450 (15:30-7:00)
21 November 2015 17 December 2015 02:35, 07:35, 12:35 7900 (7:30-15:00 UT), 5050 (15:00-18:30 & 6:30-7:30), 2450 (18:30-6:30)
13 November 2015 21 November 02:35, 07:35, 12:35 7900 (7:30-15:00 UT), 5050 (15:00-18:30 & 5:00-7:30), 3050 (18:30-5:00) accurate timing
11 November 2015 13 November 2015 02:35, 07:35, 12:35 7900 (day), 3450 (night) accurate timing
24 October 2015 11 November 2015 02:35, 07:35, 12:35 7900 (day), 3450 (night) back to normal
9 October 2015 23 October 2015 PQ052 sync inaccurate
21 August 2015 1303z 8 October 2015 PQ052 no sync to GPS
15 July 2015 1130z 21 August 2015 1300z PQ052 no sync to GPS
02 June 2015 0915z 15 July 2015 1130z PQ052 down for repairs
25 April 2015 0127z 02 June 2015 0915z 02:35, 07:35, 12:35 7900 (day) continuous 02:35 no reception at JR055
30 March 2015 0852z 25 April 2015 0127z 02:35, 07:35, 12:35 7900 (day), 3000 (night) TBD 02:35 no reception at JR055
17 March 2015 1559z 30 March 2015 0829z 04:18, 09:18, 14:18 8000 (day), 3000 (night) TBD
12 March 2015 0310z 17 March 2015 1540z 10:00 8000 (day), 3000 (night) TBD

2. Dourbes to Juliusruh

Date from Date to Sch offsets, min:sec Frequencies, kHz Switch Rules Comments
14 May 2023 --- 04:15, 09:15, 14:15 9050 (04:30-19:00), 3450 (19:00-04:30) -
13 Feb 2023 --- 04:15, 09:15, 14:15 9300 (06:30-18:00), 3450 (16:00-06:30) -
11 Oct 2022 --- 04:15, 09:15, 14:15 9300 (06:30-16:00), 3450 (16:00-06:30) -
19 May 2022 11 Oct 2022 04:15, 09:15, 14:15 9150 (06:00-20:00), 2950 (20:00-06:00) implemented at 0620
12 Apr 2022 19 May 2022 04:15, 09:15, 14:15 8850 (06:00-18:00), 2950 (18:00-06:00)
30 Mar 2022 12 Apr 2022 04:15, 06:45, 09:15, 11:45, 14:15 6950 (06:00-18:00), 2950 (18:00-06:00)
24 Mar 2022 30 Mar 2022 04:15, 06:45, 09:15, 11:45, 14:15 8850 (06:00-18:00), 2950 (18:00-06:00)
10 Mar 2022 24 Mar 2022 04:15, 06:45, 09:15, 11:45, 14:15 8850 (06:00-17:00), 2950 (17:00-06:00)
21 Oct 2021 10 Mar 04:15, 06:45, 09:15, 11:45, 14:15 6650 (06:30-16:00), 2950 (16:00-06:30)
30 Mar 2021 21 Oct 04:15, 06:45, 09:15, 11:45, 14:15 6950 (05:30-18:30), 2950 (18:30-05:30)
18 Feb 2021 30 Mar 04:15, 06:45, 09:15, 11:45, 14:15 6650 (06:30-16:00), 3450 (16:00-06:30)
23 November 2020 18 Feb 04:15, 08:45, 09:15, 11:45, 14:15 6650 (07:30-15:00), 3450 (15:00-07:30) the 08:45 is probably 06:45
20 October 2020 23 November 2020 04:15, 06:45, 09:15, 11:45, 14:15 6650 (06:30-16:00), 3450 (16:00-06:30)
17 September 2020 20 October 2020 04:15, 06:45, 09:15, 11:45, 14:15 6650 (05:30-17:30), 3450 (17:30-05:30)
25 Jun 2020 17 September 2020 04:15, 06:45, 09:15, 11:45, 14:15 6650 (05:30-18:30), 3450 (18:30-05:30)
01 Apr 2020 25 Jun 2020 04:15, 06:45, 09:15, 11:45, 14:15 7250 (05:30-18:30), 3450 (18:30-05:30)
14 February 2020 01 Apr 2020 04:15, 06:45, 09:15, 11:45, 14:15 7250 (06:30-16:30), 3450 (16:30-06:30)
29 November 2019 14 February 2020 04:15, 06:45, 09:15, 11:45, 14:15 7250 (08:00-14:45), 3450 (14:45-08:00)
16 September 2019 29 Nov 2019 04:15, 06:45, 09:15, 11:45, 14:15 7250 (06:30-16:15), 3450 (16:15-06:30)
16 April 2019 16 September 2019 04:15, 06:45, 09:15, 11:45, 14:15 7250 (06:30-20:00), 3450 (20:00-06:30)
27 February 2019 16 April 2019 04:15, 06:45, 09:15, 11:45, 14:15 7250 (06:30-16:30), 3450 (16:30-06:30) Change made after 12 UT
02 November 2018 7 February 2019 04:15, 06:45, 09:15, 11:45, 14:15 7250 (06:45-15:30), 3450 (15:30-06:45)
15 October 2018 27 February 2019 04:15, 06:45, 09:15, 11:45, 14:15 7250 (07:30-17:00), 3500 (17:00-07:30) Change made after 12 UT
25 September 2018 5 October 2018 04:15, 09:15, 14:15 7250 (07:30-17:00), 3500 (17:00-07:30) Staggered evening frequency switch for compatibility with DB049-EB040 link
24 September 2018 25 September 2018 04:15, 09:15, 14:15 7250 (07:30-19:00), 3500 (19:00-07:30) Started using 128-chip code
16 April 2018 24 September 2018 03:55, 08:55, 13:55 7250 (06:45-20:30), 3500 (20:30-06:44)
9 April 2018 16 April 2018 03:55, 08:55, 13:55 7500 (06:45-20:30), 3500 (20:30-06:44)
15 March 2018 9 April 2018 03:55, 08:55, 13:55 7500 (06:45-19:00), 3500 (19:00-06:45)
Dec 2017 15 March 2018 - - no D2D link active
28 August 2015 0853 - 08:40 8950 (day)
27 August 2015 1434z 28 August 2015 0853z 04:15, 09:15 8950 (day)

3. Dourbes to Roquetes

Sopron also listening to Dourbes Tx at 04:39, 09:39 & 14:39. Intermittently starting 2018-10-11, systematic Dourbes to Sopron data available from April 2021.

Date from Date to Sch offsets, min:sec Frequencies, kHz Switch Rules Comments
10 April 2024 current 02:06, 04:36, 07:06, 09:36, 12:06, 14:36 11125 (06:30-21:00), 7225 (21:00-06:30) At 02:06 only during night
9 April 2024 10 April 2024 02:06, 04:36, 07:06, 09:36, 12:06, 14:36 11125 (06:30-21:00), 5625 (21:00-06:30) At 02:06 only during night
14 December 2022 9 April 2024 02:06, 04:36, 07:06, 09:36, 12:06, 14:36 11125 (07:15-16:30), 4725 (16:30-07:15) At 02:06 only during night, starting around 09 UT
15 November 2022 14 December 2022 02:06, 04:36, 07:06, 09:36, 12:06, 14:36 11125 (07:00-17:00), 5625 (17:00-07:00) At 02:06 only during night
3 November 2022 15 November 2022 02:06, 04:36, 07:06, 09:36, 12:06, 14:36 11125 (06:45-18:00), 5625 (18:00-06:45) At 02:06 only during night
5 October 2022 3 November 2022 02:06, 04:36, 07:06, 09:36, 12:06, 14:36 11125 (06:45-19:15), 5625 (19:15-06:45) At 02:06 only during night
28 April 2022 5 October 2022 02:06, 04:36, 07:06, 09:36, 12:06, 14:36 11125 (06:45-21:00), 5625 (21:00-06:45) At 02:06 only during night, implemented at 07:10
24 March 2022 28 April 2022 02:06, 04:36, 07:06, 09:36, 12:06, 14:36 11125 (06:45-20:00), 5625 (20:00-06:45) At 02:06 only during night, implemented at 07:20
10 March 2022 24 March 2022 02:06, 04:36, 07:06, 09:36, 12:06, 14:36 10425 (07:00-19:00), 4725 (19:00-07:00) At 02:06 only during night, implemented after 07:15
27 January 2022 10 March 2022 02:06, 04:36, 07:06, 09:36, 12:06, 14:36 10425 (07:15-17:15), 4725 (17:15-07:15) At 02:06 only during night, implemented after 07:15
2 December 2021 27 January 2022 02:06, 04:36, 07:06, 09:36, 12:06, 14:36 10425 (07:15-16:15), 4725 (16:15-07:15) At 02:06 only during night, implemented after 07:15
17 November 2021 2 December 2021 02:06, 04:36, 07:06, 09:36, 12:06, 14:36 10425 (07:00-16:45), 4725 (16:45-07:00) At 02:06 only during night
27 October 2021 17 November 2021 02:06, 04:36, 07:06, 09:36, 12:06, 14:36 10425 (07:00-17:30), 4725 (17:30-07:00) At 02:06 only during night, new day-time frequency from 07:00 UT
21 October 2021 27 October 2021 02:06, 04:36, 07:06, 09:36, 12:06, 14:36 9125 (07:00-19:00), 4725 (19:00-07:00) At 02:06 only during night
10 August 2021 21 October 2021 02:06, 04:36, 07:06, 09:36, 12:06, 14:36 9125 (07:00-21:00), 4725 (21:00-07:00) At 02:06 only during night
17 May 2021 10 August 2021 02:06, 04:36, 07:06, 09:36, 12:06, 14:36 9125 (06:45-22:15), 4725 (22:15-06:45) At 02:06 only during night; changes applied at 06:45
11 May 2021 17 May 2021 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (07:00-22:00), 4725 (22:00-07:00) At 02:09 only during night (mistake between 14:45 & 22:15)
6 April 2021 11 May 2021 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (07:00-19:45), 4725 (19:45-07:00) At 02:09 only during night
23 March 2021 6 April 2021 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (07:15-18:45), 4725 (18:45-07:15) At 02:09 only during night
18 February 2021 23 March 2021 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (07:15-17:30), 4725 (17:30-07:15) At 02:09 only during night
23 November 2020 18 February 2021 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (07:15-16:45), 4725 (16:45-07:15) At 02:09 only during night
19 October 2020 23 November 2020 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (07:00-17:30), 4725 (17:30-07:00) At 02:09 only during night
17 September 2020 19 October 2020 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (07:15-19:30), 4725 (19:30-07:15) At 02:09 only during night
30 April 2020 17 September 2020 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (07:15-21:30), 4725 (21:30-07:15) At 02:09 only during night
1 April 2020 30 April 2020 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (07:15-19:30), 4725 (19:30-07:15) At 02:09 only during night
9 March 2020 1 April 2020 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (07:15-18:15), 4725 (18:15-07:15) At 02:09 only during night
12 February 2020 9 March 2020 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (07:30-17:15), 4725 (17:15-07:30) At 02:09 only during night
29 November 2019 12 February 2020 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (07:30-16:15), 4725 (16:15-07:30) At 02:09 only during night
13 November 2019 29 November 2019 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (07:15-17:00), 4725 (17:00-07:15) At 02:09 only during night
22 October 2019 13 November 2019 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (07:00-17:30), 4725 (17:30-07:00) At 02:09 only during night
3 October 2019 22 October 2019 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (07:30-18:15), 4725 (18:15-07:30) At 02:09 only during night
16 September 2019 3 October 2019 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (07:15-19:15), 4725 (19:15-07:15) At 02:09 only during night
29 April 2019 16 September 2019 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (06:45-21:30), 4725 (21:30-06:45) At 02:09 only during night
15 April 2019 29 April 2019 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (06:45-20:00), 4725 (20:00-06:45) At 02:09 only during night
18 February 2019 15 April 2019 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (07:00-18:00), 4725 (18:00-07:00) At 02:09 only during night
20 November 2018 18 February 2019 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (07:15-16:30), 4725 (16:30-07:15) At 02:09 only during night
26 October 2018 20 November 2018 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (07:15-17:30), 4725 (17:30-07:15) At 02:09 only during night
24 September 2018 26 October 2018 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (07:30-19:00), 4725 (19:00-07:30) At 02:09 only during night
9 April 2018 24 September 2018 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (06:45-20:30), 4725 (20:30-06:44) At 02:09 only during night
9 March 2018 8 April 2018 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (06:45-19:00), 4725 (19:00-06:45) At 02:09 only during night
28 February 2018 8 March 2018 02:09, 04:39, 07:09, 09:39, 12:09, 14:39 9125 (07:15-17:30), 4725 (17:30-07:15) At 02:09 only during night
19 February 2018 27 February 2018 Campaign to test 128-chip and 64-chip codes
5 December 2017 9 April 2018 03:40, 08:40, 13:40 9125 (07:30-16:30), 4725 (16:30-07:30) TV: Made effective after 10:00; DA: Made effective after 9:10
21 September 2017 5 December 2017 03:40, 08:40, 13:40 9125 (06:45-19:15), 4725 (19:15-06:45) DA: Made effective after 09:45
15 May 2017 21 September 2017 03:40, 08:40, 13:40 9125 (6:15-21:15), 4725 (21:15-6:15) DA: Made effective after 20:15
11 April 2017 15 May 03:40, 08:40, 13:40 9125 (6:15-20:15), 4725 (20:15-6:15) DA: Made effective after 20:15
21 March 2017 11 April 2017 03:40, 08:40, 13:40 9125 (6:15-19:00), 4725 (19:00-6:15)
20 February 2017 21 March 2017 03:40, 08:40, 13:40 9125 (6:45-17:30), 4725 (17:30-6:45)
27 January 2017 1230 20 February 2017 03:40, 08:40, 13:40 9125 (7:15-16:30), 4725 (16:30-7:15)
13 December 2016 0845 26 January 2017 1230 03:40, 08:40, 13:40 10425 (7:45-16:00), 4725 (16:00-7:45)
13 October 2016 1630 13 December 2016 0725 03:40, 08:40, 13:40 10425 (9:15-16:30), 7825 (6:15-9:15 & 16:30-19:15), 4355 (19:15-6:15)
11 October 2016 0930 13 October 2016 1630 03:40, 08:40, 13:40 10425 (9:45-16:30), 7675 (6:45-9:45 & 16:30-19:15), 4355 (19:15-6:45)
7 September 2016 0725 11 October 2016 0930 03:40, 08:40, 13:40 8950 (7:00-21:00), 4845 (21:00-7:00)
9 May 2016 1220 7 September 2016 0725 03:40, 08:40, 13:40 11145 (9:45-18:30), 8950 (6:45-9:45 & 18:30-21:00), 4845 (21:00-6:45)
23 March 2016 1100 9 May 2016 1220 11145 (9:45-18:30), 8950 (6:45-9:00 & 18:30-19:45), 4845 (19:45-6:45)
15 February 2016 1830 23 March 2016 1100 11350 (9:00-18:30), 8950 (7:00-9:00 & 16:30-18:30), 4845 (18:30-7:00)
11 December 2015 1630 15 February 2016 1830 8950 (7:30-16:30), 3450 (16:30-7:30)
30 October 2015 1800 11 December 2015 1630 8950 (7:00-18:00), 4845 (18:00-7:00)
29 October 2015 1900 30 October 2015 1800 8950 (7:00-19:00), 4400 (19:00-7:00)
28 October 2015 1900 29 October 2015 1900 8950 (7:00-19:00), 4000 (19:00-7:00)
30 August 2015 0000 28 October 2015 1900 8950 (7:00-22:00), 4845 (22:00-7:00)

4. Dourbes to Athens [Suspended]

Date from Date to Sch offsets, min:sec Frequencies, kHz Switch Rules Comments
29 May 2017 2 June 2017 03:40, 08:40, 13:40 9125 (6:15-21:15), 4725 (21:15-6:15) New transmitter card testing period for Athens
16 May 2017 0735 29 May 2017 03:40, 08:40, 13:40 9125 (6:15-21:15), 4725 (21:15-6:15)
12 April 2017 0825 16 May 2017 0735 03:40, 08:40, 13:40 9125 (6:15-20:15), 4725 (20:15-6:15)
6 April 2017 1055 12 April 2017 0825 03:40, 08:40, 13:40 9125 (6:15-19:00), 4725 (19:00-6:15)
21 February 2017 1250 11 March 2017 03:40, 08:40, 13:40 9125 (6:45-17:30), 4725 (17:30-6:45)
27 January 2017 0948 21 February 2017 1250 03:40, 08:40, 13:40 9125 (7:15-16:30), 4725 (16:30-7:15)
13 December 2016 0845 27 January 2017 0948 03:40, 08:40, 13:40 10425 (7:45-16:00), 4725 (16:00-7:45)
13 October 2016 1200 13 December 2016 0725 03:40, 08:40, 13:40 10425 (9:15-16:30), 7825 (6:15-9:45 & 16:30-19:15), 4355 (19:15-6:15)
11 October 2016 0909 13 October 2016 1200 03:40, 08:40, 13:40 10425 (9:45-16:30), 7675 (6:45-9:45 & 16:30-19:15), 4355 (19:15-6:45)
7 September 2016 0749 11 October 2016 0909 03:40, 08:40, 13:40 8950 (day), 4845(night)
6 May 2016 0928 7 September 2016 0749 03:40, 08:40, 13:40 11145 (day), 4845(night)

5. Athens to Roquetes [Suspended]

Date from Date to Sch offsets, min:sec Frequencies, kHz Switch Rules Comments
13 March 2018 ?? [03:15, 08:15, 13:15]@128-chip 11750 (128-chip/06:45-19:00) 4725 (19:00-06:45) AM: Made effective after 09:55
16 January 2018 13 March 2018 - - AM: AT138 offline due to amplifier failure
22 December 2017 16 January 2018 [03:15, 08:15, 13:15]@128-chip, [03:40, 08:40, 13:40]@16-chip 11750 (128-chip/07:30-16:30), 9525 (16-chip/07:30-16:30) 4725 (16:30-07:30) AM: Made effective after 12:20; DA: Made effective after 12:30
11 December 2017 22 December 2017 [03:15, 08:15, 13:15]@128-chip, [03:40, 08:40, 13:40]@16-chip 9525 (128-chip/07:30-16:30), 9525 (16-chip/07:30-16:30) 4725 (16:30-07:30) AM: Made effective after 09:20
5 December 2017 11 December 2017 03:15, 08:15, 13:15 9525 (07:30-16:30), 4725 (16:30-07:30) AM: Made effective after 10:00; DA: Made effective after 9:10
21 September 2017 5 December 2017 03:15, 08:15, 13:15 9525 (6:14:58-21:14:59), 4725 (21:14:59-6:14:58) DA: Made effective after 09:45
2 June 2017 21 September 2017 03:15, 08:15, 13:15 9525 (6:14:58-21:14:59), 4725 (21:14:59-6:14:58)
29 May 2017 2 June 2017 03:15, 08:15, 13:15 9525 (6:14:58-21:14:59), 4725 (21:14:59-6:14:58) New transmitter card testing period for Athens

6. Sopron to Athens

Date from Date to Sch offsets, min:sec Frequencies, kHz Switch Rules Comments
24 March 2022 1 April 2022 [06:53, 21:53, 36:53,51:53] 11145 (06:45-18:00) 4845 (20:00-06:00) 128-chip
17 March 2022 24 March 2022 [06:53, 21:53, 36:53,51:53] 11145 (07:00-17:00) 4845 (19:00-06:00) 128-chip