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: 21/10/2024]
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, 14.10.2024 – 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] | Duration [h] |
21/10/2024 11:25 | TBA |
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 18/10/2024 – 21/10/2024 in UTC [Last Update: 18/10/2024]
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, 18.10.2024 – The APRS digipeater is switched off during the entire planned SSTV event period.
Australia | |||
Central + West | East + NZ | ||
19.10.2024 04:11:00 20.10.2024 03:50:00 21.10.2024 06:35:00 | 19.10.2024 02:39:00 20.10.2024 02:18:00 21.10.2024 01:57:00 21.10.2024 03:29:00 | ||
Asia | |||
Middle East, India | South East | East | |
19.10.2024 10:15:00 19.10.2024 11:48:00 20.10.2024 09:54:00 21.10.2024 09:34:00 | 19.10.2024 07:10:00 20.10.2024 06:50:00 21.10.2024 08:02:00 | 18.10.2024 16:24:00 19.10.2024 05:28:00 20.10.2024 05:07:00 21.10.2024 04:46:00 | |
Europe | |||
West | Central | East | |
19.10.2024 01:54:00 19.10.2024 16:25:00 20.10.2024 03:05:00 20.10.2024 16:06:00 | 19.10.2024 00:20:00 19.10.2024 14:51:00 20.10.2024 01:33:00 20.10.2024 14:31:00 | 19.10.2024 13:17:00 19.10.2024 23:59:00 20.10.2024 12:56:00 | |
North America | |||
West | Central | East | Hawaii |
18.10.2024 23:08:00 19.10.2024 09:44:00 19.10.2024 22:47:00 20.10.2024 09:25:00 20.10.2024 22:26:00 21.10.2024 09:02:00 | 18.10.2024 21:35:00 19.10.2024 08:10:00 19.10.2024 21:13:00 20.10.2024 07:49:00 20.10.2024 20:52:00 21.10.2024 07:27:00 | 18.10.2024 20:00:00 19.10.2024 19:38:00 20.10.2024 19:18:00 | 19.10.2024 12:48:00 20.10.2024 12:27:00 |
South America | |||
18.10.2024 17:07:00 18.10.2024 18:40:00 19.10.2024 18:20:00 20.10.2024 17:58:00 | |||
Africa | |||
South | |||
20.10.2024 11:41:00 20.10.2024 23:18:00 21.10.2024 00:51:00 21.10.2024 11:19:00 |
Planned Transmissions [Last Update: 23/10/2024]
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 |
TBD |
Past Transmissions
The following table shows the past transmissions of SONATE-2's SSTV transmitter and the regions of the transmitted images.