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: 16/09/2024]
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.
| Begin [UTC] | End [UTC] | Duration [h] |
| 20/09/2024 15:00 | 22/09/2024 23:00 | 56:00 |
| 02/10/2024 15:00 | 06/10/2024 23:00 | 104:00 |
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 |  |
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. Only a single images is transmitted at the specified timestamps (all in UTC).
- Frequency: 145.880 MHz
- Modulation: Martin M1 SSTV FM (F3F)
- TX Power: 500mW
Transmission Schedule from 30/08/2024 – 02/09/2024 in UTC [Last Update: 30/08/2024]
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.
| Australia | |||
| Central + West | East + NZ | ||
| 31/08/2024 04:53:00 01/09/2024 04:35:00 02/09/2024 04:17:00 | 31/08/2024 03:23:00 01/09/2024 03:04:00 02/09/2024 02:45:00 | ||
| Asia | |||
| Middle East, India | South East | East | |
| 31/08/2024 09:25:00 31/08/2024 11:00:00 01/09/2024 09:06:00 02/09/2024 08:49:00 | 31/08/2024 06:22:00 01/09/2024 06:02:00 02/09/2024 05:46:00 | 30/08/2024 17:07:00 31/08/2024 16:47:00 01/09/2024 16:29:00 | |
| Europe | |||
| West | Central | East | |
| 31/08/2024 02:37:00 31/08/2024 15:40:00 01/09/2024 02:19:00 01/09/2024 15:20:00 | 31/08/2024 01:04:00 31/08/2024 14:02:00 01/09/2024 00:44:00 | 30/08/2024 23:30:00 31/08/2024 12:28:00 31/08/2024 23:11:00 01/09/2024 12:10:00 | |
| North America | |||
| West | Central | East | Hawaii |
| 30/08/2024 22:17:00 31/08/2024 08:56:00 31/08/2024 21:59:00 01/09/2024 08:37:00 01/09/2024 21:40:00 | 30/08/2024 20:43:00 31/08/2024 07:21:00 31/08/2024 20:25:00 01/09/2024 07:03:00 01/09/2024 20:04:00 02/09/2024 08:19:00 | 30/08/2024 19:09:00 31/08/2024 18:51:00 01/09/2024 18:32:00 | 31/08/2024 12:00:00 01/09/2024 11:41:00 |
| South America | |||
| 30/08/2024 17:50:00 31/08/2024 17:32:00 01/09/2024 17:10:00 | |||
| Africa | |||
| South | |||
| 01/09/2024 10:53:00 01/09/2024 22:34:00 02/09/2024 00:07:00 02/09/2024 10:35:00 | |||
Planned Transmissions [Last Update: 02/09/2024]
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 |
| 27/09/24 – 29/09/24 |
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 |
| 08/03/24 – 11/03/24 | SONATE-2 |
| 26/03/24 – 02/04/24 | First Image, French Atlantik Coast |
| 17/05/24 – 21/05/24 | Strait of Gibraltar |
| 21/06/24 – 24/06/24 | Bahrain, 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 | Japan |
