Deutsch Intern
Professorship for Space Technology

Information for Radio Amateurs

This page is dedicated to the amateur radio community and lists information related to our SONATE-2  mission. Activation of our amateur radio payloads (SSTV, APRS Digipeater) will usually be announced on our X account @JMUSpace.

Please contact sonate-2@uni-wuerzburg.de for any questions regarding SONATE-2 amateur radio operations.

Two Line Elements (TLE)

The NORAD-ID of SONATE-2 is 59112 and its international designator is 2024-043Q. Current TLE information can be found on the CelesTrak website.

Telemetry Downlink

During passes over our ground stations in Germany the telemetry downlink will be activated.

  • Frequency: 437.025 MHz
  • Modulation: 9k6 G3RUH GMSK (F1D)
  • Protocol: AX.25

The protocol format used for encoding the telemetry frames can be found >>here<<.
Recorded AX.25 frames can be forwarded to sonate-2@uni-wuerzburg.de

CW Beacon

The CW Beacon is only sporadically used. Mainly during LEOP for launch object identification. If activated, a beacon with the callsign of the satellite DP0SNX is transmitted at regular intervals as CW Morse code.

  • Frequency: 145.840 MHz
  • Modulation: Morse code CW (A1A)
  • Interval: 30 sec

APRS Digipeater

The APRS digipeater on SONATE-2 operates in half-duplex operation. The digipeater is only active when published below. When activated, it will transmit a greeting message every 2 minutes. Make sure to include SONATE-2's callsign DP0SNX in the APRS route.

  • Frequency: 145.825 MHz Up/Down
  • Modulation: 1k2 AFSK (F2D)
  • Protocol: AX.25
  • TX Power: 500mW

 

Planned Activation Schedule [Last Update: 02.12.2024]

The activation of the APRS digipeater on SONATE-2 is planned at the following times. Due to unforeseen circumstances, the planned times can also change at short notice. The begin of an APRS event is usually announced on our X account @JMUSpace.

Würzburg, 07.10.2024 – The APRS digipeater has successfully operated for the first time continuously for a week. No problems were encountered. We will therefore continue to operate the APRS digipeater until further notice. However, interruptions are always possible due to unforeseen circumstances.

Würzburg, 25.11.2024 – We are planning SSTV broadcasts again over the weekend. Therefore the APRS digipeater will be deactivated during the entire event period.

Begin [UTC] End [UTC]
02.12.2024 11:05  

 

Past Transmission Periods

Begin [UTC] End [UTC] Duration  [h] Digipeated Message Count Worldmap
26.07.2024 16:00 29.07.2024 00:00 56:00 421
09.08.2024 15:00 11.08.2024 23:00 56:00 486
14.08.2024 15:00 18.08.2024 23:00 104:00 833
23.08.2024 15:00 25.08.2024 23:00 56:00 289
13.09.2024 15:20 15.09.2024 23:20 56:00 539
20.09.2024 15:40 22.09.2024 23:40 56:00 632
30.09.2024 15:30 07.10.2024 00:00 152:30 834
07.10.2024 00:00 14.10.2024 00:00 168:00 576
14.10.2024 00:00 18.10.2024 15:45 111:45 406
21.10.2024 11:25 28.10.2024 00:00 156:35 703
28.10.2024 00:00 01.11.2024 15:30 111:30 397
04.11.2024 11:30 11.11.2024 00:00 156:30 463
11.11.2024 00:00 15.11.2024 15:30 111:30 397
18.11.2024 11:00 25.11.2024 00:00 157:00 343
25.11.2024 00:00 29.11.2024 15:00 111:00 201
02.12.2024 11:05        

SSTV Downlink

Regular downlinks of SSTV images captured by SONATE-2's on-board cameras are planned. The SSTV downlinks are only active during the times when published below.

  • Frequency: 145.880 MHz
  • Modulation: Martin M1 SSTV FM (F3F)
  • TX Power: 500mW

 

Transmission Schedule from 29.11.2024 – 02.12.2024 in UTC [Last Update: 29.11.2024]

The following table shows the UTC times of the planned SSTV transmissions of SONATE-2. Two images are transmitted sequentially at these times. Due to unforeseen circumstances, the scheduled times may change at short notice. The begin of a SSTV event is usually also announced on our X account @JMUSpace.

Würzburg, 29.11.2024 – The APRS digipeater is switched off during the entire planned SSTV event period.

Australia, New Zealand
30.11.2024 02:31:00
30.11.2024 04:04:00
01.12.2024 03:41:00
02.12.2024 03:17:00
02.12.2024 04:50:00
     
Asia
Middle East, India South East China, Siberia Japan/Korea
30.11.2024 10:07:00
30.11.2024 11:38:00
01.12.2024 09:43:00
02.12.2024 10:52:00
 
29.11.2024 17:41:00
30.11.2024 05:30:00
01.12.2024 05:07:00
01.12.2024 06:40:00
01.12.2024 08:10:00
02.12.2024 06:17:00
02.12.2024 07:48:00
30.11.2024 06:55:00
30.11.2024 08:24:00
30.11.2024 17:27:00
01.12.2024 18:37:00
02.12.2024 06:09:00
02.12.2024 09:10:00
29.11.2024 16:17:00
30.11.2024 05:20:00
01.12.2024 04:56:00
01.12.2024 17:03:00
02.12.2024 04:33:00
Europe
West Central East  
30.11.2024 01:46:00
01.12.2024 02:56:00
01.12.2024 15:52:00
02.12.2024 02:31:00
30.11.2024 00:13:00
30.11.2024 14:43:00
01.12.2024 01:22:00
01.12.2024 14:20:00
02.12.2024 01:00:00
29.11.2024 22:39:00
30.11.2024 13:08:00
30.11.2024 23:50:00
01.12.2024 12:46:00
01.12.2024 23:25:00
 
North America
West, Alaska Central East Hawaii
29.11.2024 22:57:00
30.11.2024 09:42:00
30.11.2024 22:37:00
01.12.2024 09:11:00
01.12.2024 10:53:00
01.12.2024 22:13:00
29.11.2024 21:27:00
30.11.2024 08:01:00
30.11.2024 21:07:00
01.12.2024 07:32:00
01.12.2024 20:39:00
02.12.2024 08:47:00
29.11.2024 19:52:00
30.11.2024 19:30:00
01.12.2024 06:04:00
01.12.2024 19:10:30
02.12.2024 07:15:00
30.11.2024 12:40:00
01.12.2024 12:16:00
South America
West East    
29.11.2024 18:34:00
30.11.2024 18:07:00
01.12.2024 17:48:00
29.11.2024 17:01:00
30.11.2024 16:37:00
   
Africa
South      
30.11.2024 11:54:00
01.12.2024 11:30:00
01.12.2024 23:06:00
02.12.2024 00:40:00
     

 

Planned Transmissions [Last Update: 25.11.2024]

The following table shows the times for future planned SSTV transmissions of SONATE-2. Due to unforeseen circumstances, the scheduled times may change at short notice. The begin of a SSTV event is usually also announced on our X account @JMUSpace.

Planned Period
29.11.24 – 01.12.24

 

Past Transmissions

The following table shows the past transmissions of SONATE-2's SSTV transmitter and the regions of the transmitted images.

Transmission Period Image Content Images
08.03.24 – 11.03.24 SONATE-2
26.03.24 – 02.04.24 French Atlantik Coast
17.05.24 – 21.05.24 Strait of Gibraltar
21.06.24 – 24.06.24 Durrat Al Bahrain
05.07.24 – 08.07.24 Hurricane Beryl
02.08.24 – 05.08.24 Dubai and Italy  
31.08.24 – 02.09.24 Honshū, Japan
27.09.24 – 30.09.24 Persian Gulf and Karkheh Dam, Iran
18.10.24 – 21.10.24 Tasmania, Australia and Great Salt Lake, UT, USA
01.11.24 – 04.11.24 New York, USA and Cape Town, South Africa
15.11.24 – 18.11.24 San Francisco, CA, USA and Key West, FL, USA
29.11.24 – 02.12.24