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
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.