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 of SONATE-2 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
SONATE-2's 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: 30/09/2024]
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] |
30/09/2024 15:30 | at least until 07/10/2024 12:00 | >164 |
Past Transmission Periods
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 27/09/2024 – 30/09/2024 in UTC [Last Update: 27/09/2024]
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 | ||
28.09.2024 05:10:00 29.09.2024 04:50:00 30.09.2024 04:32:00 | 28.09.2024 03:38:00 29.09.2024 03:19:00 30.09.2024 02:59:00 | ||
Asia | |||
Middle East, India | South East | East | |
28.09.2024 09:42:00 28.09.2024 11:17:00 29.09.2024 09:22:00 30.09.2024 09:01:00 | 28.09.2024 06:38:00 29.09.2024 06:18:00 30.09.2024 05:59:00 | 27.09.2024 17:24:00 28.09.2024 17:04:00 29.09.2024 16:43:00 | |
Europe | |||
West | Central | East | |
28.09.2024 02:54:00 28.09.2024 15:55:00 29.09.2024 02:34:00 29.09.2024 15:35:00 | 28.09.2024 01:20:00 28.09.2024 14:19:00 29.09.2024 01:00:00 29.09.2024 13:59:00 | 27.09.2024 23:47:00 28.09.2024 23:28:00 29.09.2024 12:25:00 | |
North America | |||
West | Central | East | Hawaii |
27.09.2024 22:36:00 28.09.2024 09:12:00 28.09.2024 22:14:00 29.09.2024 08:54:00 29.09.2024 21:55:00 30.09.2024 08:31:00 | 27.09.2024 21:00:00 28.09.2024 07:38:00 28.09.2024 20:40:00 29.09.2024 07:16:00 29.09.2024 20:20:00 | 27.09.2024 19:26:00 28.09.2024 19:07:00 29.09.2024 18:47:00 30.09.2024 06:56:00 | 28.09.2024 12:15:00 29.09.2024 11:56:00 |
South America | |||
27.09.2024 18:07:00 28.09.2024 17:49:00 29.09.2024 17:26:00 | |||
Africa | |||
South | |||
29.09.2024 11:09:00 29.09.2024 22:47:00 30.09.2024 00:21:00 30.09.2024 10:50:00 |
Planned Transmissions [Last Update: 30/09/2024]
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 |
TBA |
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 |
27/09/24 – 30/09/24 | Persian Gulf and Iran, Karkheh Dam |