Information for Radio Amateurs
![Impression of the VHF/UHF groundstation antennas during preparation for the SONATE-2 launch. (Image: O.Balagurin) Impression of the VHF/UHF groundstation antennas during preparation for the SONATE-2 launch. (Image: O.Balagurin)](/fileadmin/_processed_/5/b/csm_photo_2024-02-19_10-30-07_92b20da5eb.jpg)
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
Activation Schedule [Last Update: 09/08/2024]
The APRS digipeater on SONATE-2 was active at the following times. Times in the future show planned activation slots. 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] |
26/07/2024 16:00 | 27/07/2024 12:00 | 20:00 |
27/07/2024 12:30 | 29/07/2024 00:00 | 35:30 |
09/08/2024 15:00 | 11/08/2024 23:00 | 56:00 |
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 05 – 08/07/2024 in UTC [Last Update: 05/07/2024]
The following table shows the UTC times of the planned SSTV transmissions of SONATE-2. A single image is transmitted once 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 | ||
06/07/2024 04:18:00 08/07/2024 03:47:00 | 06/07/2024 02:46:00 07/07/2024 02:31:00 08/07/2024 02:14:00 | ||
Asia | |||
South East | East | Central, India | Middle East |
06/07/2024 05:46:00 07/07/2024 05:27:00 08/07/2024 05:14:00 | 05/07/2024 16:29:00 06/07/2024 16:13:00 07/07/2024 15:58:00 | 06/07/2024 08:49:00 07/07/2024 08:34:00 08/07/2024 08:18:00 | 06/07/2024 10:24:00 07/07/2024 10:07:00 08/07/2024 09:53:00 |
Europe | |||
West | East | ||
06/07/2024 02:04:00 06/07/2024 15:04:00 07/07/2024 01:47:00 07/07/2024 14:48:00 | 05/07/2024 22:54:00 06/07/2024 22:38:00 07/07/2024 11:38:00 07/07/2024 22:22:00 | ||
North America | |||
West | Central | East | Hawaii |
05/07/2024 21:41:00 06/07/2024 21:25:00 | 05/07/2024 20:08:00 06/07/2024 08:21:00 06/07/2024 19:51:00 07/07/2024 08:05:00 07/07/2024 21:11:00 08/07/2024 07:50:00 | 05/07/2024 18:33:00 06/07/2024 06:46:00 06/07/2024 18:17:00 07/07/2024 06:29:00 07/07/2024 19:35:00 08/07/2024 06:13:00 | 06/07/2024 11:25:00 07/07/2024 12:43:00 |
South America | |||
05/07/2024 17:14:00 06/07/2024 16:57:00 07/07/2024 16:41:00 |
Past Transmissions
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 |