I am receiving a signal on frequency 437.625 but am unable to decode it.
Maybe it’s Umka-1 or not.
4 Likes
Try to decode with 2400 baud
I tried, but no decoding
I have an overhead pass coming up and will try to decode the satellite.
2 Likes
UMKA-1 received and decoded.
gr_satellites UMKA-1.yml --wavfile 7777267.ogg --samp_rate 48e3
cat UMKA-1.yml
name: UMKA-1
norad: 99136
data:
&tlm Telemetry:
telemetry: ax25
transmitters:
1k2 FSK downlink:
frequency: 437.625e+6
modulation: FSK
baudrate: 1200
framing: AX.25 G3RUH
data:
- *tlm
2k4 FSK downlink:
frequency: 437.625e+6
modulation: FSK
baudrate: 2400
framing: AX.25 G3RUH
data:
- *tlm
4k8 FSK downlink:
frequency: 437.625e+6
modulation: FSK
baudrate: 4800
framing: AX.25 G3RUH
data:
- *tlm
9k6 FSK downlink:
frequency: 437.625e+6
modulation: FSK
baudrate: 9600
framing: AX.25 G3RUH
data:
- *tlm
-> Packet from 2k4 FSK downlink
Container:
header = Container:
addresses = ListContainer:
Container:
callsign = u'R2ANF' (total 5)
ssid = Container:
ch = False
ssid = 0
extension = False
Container:
callsign = u'RS40S' (total 5)
ssid = Container:
ch = False
ssid = 1
extension = True
control = 0x00
pid = 0xF0
info = b'\x16B\x02\x00\x01\x00B\x00\x19\x04\xa5\x16S\x13\xd0\x03\x00\x00\x93\x01\x8a\x00\x00\x00 \x00\x00\x00\x00\x00\xf9\xff\xf9\xff\xf8\xff\xf9\xff\x00 \x00\x00 \x1f\xbaH\x00\x00EK\x8dd\xbc\x0c\xf7\xf6Yt!\x13\x93\x0eEK\x8dd\xa8H\x00\x00\x1f\x00H\x1f' (total 74)
4 Likes
CUBEBEL-2 pass this evening, load and clear, 93 frames decoded with gr-satellites in one pass, TLE’s are spot on, I am not sure which sat is on the right.
Here is a satyml file for the gr-satellite users (same as for CUBEBEL-1):
name: CubeBel-2
alternative_names:
- BSUSat-2
norad: 99163
data:
&tlm Telemetry:
telemetry: ax25
transmitters:
9k6 FSK downlink:
frequency: 436.990e+6
modulation: FSK
baudrate: 9600
framing: AX.25 G3RUH
data:
- *tlm
Example:
-> Packet from 9k6 FSK downlink
Container:
header = Container:
addresses = ListContainer:
Container:
callsign = u'EU1XX' (total 5)
ssid = Container:
ch = False
ssid = 0
extension = False
Container:
callsign = u'EU11S' (total 5)
ssid = Container:
ch = False
ssid = 0
extension = True
control = 0x03
pid = 0xF0
info = b'\x14$\xf4\x04\x00\x98\x12\x1a\x00\x00\x00\x00\x00\x00\x00\x00\x0f\x00\x00\x00\x01\x01\x02\x08\x14=\xa2\x8f\x04\x1d\x00\x00\x005\x00\x00\x00\x00m\x01\x00\x00\x00\x00\x00\x00RR\xa0U\x00\xf7@\x16\xc968!P\x84\x8a\xd2\xb9\x9a\xe8\x82\x13\xb6\x04?\x8a\xdb\xc6\xd4\x15\xb6\x978\xaa\x00\x00\x00\x00\x00\x00\x00\x00' (total 87)
3 Likes
Thanks, NANOZOND-1 at 437.000 MHz fits perfectly, it was 10kHz above during the complete pass.
4 Likes
Cubebel-2 successfully established bidirectional communication with the command center and measured a frequency mismatch of 400 Hz relative to the doppler-corrected signal according to the current TLE.
6 Likes
Polytech Universe-3 can be added to the ‘heard + decoded’ list thanks to a packet audio sample from N6RFM. On the following pass, I was able to decode -2- 62.5k LoRa packets using the settings obtained from Bob’s recording. It sure is nice to have friends with big antennas!
2 Likes
Hello. Thank you for receiving the signal from our UMKA satellite. Yes, at the moment the satellite broadcasts at FSK G3RUH 2400 baud. This is due to the new firmware, which was introduced at the last moment, about the changes in which part of the team was not informed I apologize for not informing you. But I found out about it myself in fact when we started working in our ground control station. Some shift in time zones (6 o’clock), strong excitement, lack of sleep and fuss, do not allow me to make a full report now. When I get home, I will definitely do it. And thanks to the community for receiving telemetry. At the moment, we know about the stable operation of our satellite. This is a very exciting and joyful event. We will continue to monitor him. We will inform you about additional changes and the beginning of our experiment additionally on the mission page.
5 Likes
CubeBel-2 corrected TLE
CUBEBEL-2
1 99163U 23178.60752041 .00009659 00000-0 70046-3 0 1232
2 99163 97.6652 229.0207 0010018 222.4731 120.2161 15.02166880 020
3 Likes
Updated 30.06 14:00 UTC
| Temporary NORAD | Satellite | Frequency/Mode | Notes | Received/Decoded |
|---|---|---|---|---|
| 99154 | METEOR 2 No.2-3 | Link | Received and Decoded | |
| Amateur UHF | ||||
| 99163 | CubeBel-2 (EU11S) | 436.990/FSK | IARU Coordinated | Received and Decoded |
| 99151 | StratoSat TK-1 (RS52S) | 435.870/GFSK 9k6 | IARU Coordination in process | Received and Decoded |
| 99136 | UmKA-1 (RS40S) | 437.625/GMSK G3RUH AX.25 2k4 | IARU Coordinated | Received and Decoded |
| 99153 | ArcCube-01 (RS25S) | 437.600/GMSK USP | IARU Uncoordinated | Received |
| 99152 | Sirius-SINP-3U | 436.550/GMSK 4k8 | IARU Uncoordinated | Not received |
| 99144 | Svyatobor-1 (RS60S) | 437.875/GMSK USP | IARU Uncoordinated | Received |
| 99143 | Nanozond-1 (RS49S) | 437.000/GMSK USP | IARU Uncoordinated | Received and Decoded |
| 99142 | AHMAT-1 (RS41S) | 437.050/AFSK 1145 | IARU Uncoordinated | Not received |
| 99141 | CubeSX-HSE-3 (RS42S) | 436.570/GMSK USP | IARU Uncoordinated | Received |
| 99140 | VIZARD-meteo (RS38S) | 437.825/GMSK USP | IARU Uncoordinated | Received |
| 99139 | Monitor-2 (RS39S) | 435.860 FSK 9k6 (?) | IARU Uncoordinated | Received (see notes) |
| 99138 | Monitor-3 (RS58S) | 435.290/GMSK USP | IARU Uncoordinated | Received and Decoded |
| 99137 | Monitor-4 (RS57S) | 436.080/GMSK USP | IARU Uncoordinated | Received and Decoded |
| 99135 | KuzGTU-1 (RS47S) | 437.100/GMSK USP | IARU Uncoordinated | Received and Decoded |
| 99134 | ReshUCube-2 (RS37S) | 435.640, 435.742, 436.675/FSK 9k6 | IARU Uncoordinated | Received |
| 99133 | UTMN2 (RS27S) | 435.485/GMSK USP | IARU Uncoordinated | Received |
| 99132 | Polytech Universe 3 (RS46S) | 435.050/LoRa 62.5k | IARU Uncoordinated | Received and Decoded |
| 99128 | Norby-2 | 436.500/LoRa | Bought frequency | Received and Decoded |
| 99092 | SamSat-ION | 437.402/CW | IARU Uncoordinated | Received |
| 99091 | CSTP-1.1 (STC-1.1) | 436.075/LoRa 62.5k | Without callsign/IARU Uncoordinated | Received and Decoded |
| 99090 | CSTP-1.2 (STC-1.2) | 436.270/LoRa 62.5k | Without callsign/IARU Uncoordinated | Received and Decoded |
| Commercial Band | ||||
| 99088 | PHI-DEMO | |||
| 99087 | A-SEANSAT-PG1 | 401.500 MHz / FM | Received | |
| 99125 | Rassvet-1-1 | 637.500 MHz / FM | ||
| 99094 | Rassvet-1-2 | 637.500 MHz / FM | ||
| 99093 | Rassvet-1-3 | 637.500 MHz / FM | ||
| Unknown Frequencies | ||||
| 99131 | Avion Kaluga 650 | |||
| 99127 | Yarilo No. 3 | |||
| 99126 | Yarilo No. 4 | |||
| 99089 | Impulse-1 | |||
| 99086 | Hors 1 | |||
| 99085 | Hors 2 | |||
| 99084 | SATURN | |||
| 99129 | Druzhba ATURK | |||
| 99124 | Zorkiy-2M | 400-402/GMSK USP | ||
| 99123 | SITRO-AIS-5 | 400-402 | ||
| 99122 | SITRO-AIS-6 | 400-402 | ||
| 99121 | SITRO-AIS-7 | 400-402 | ||
| 99120 | SITRO-AIS-8 | 400-402 | ||
| 99119 | SITRO-AIS-9 | 400-402 | ||
| 99118 | SITRO-AIS-10 | 400-402 | ||
| 99117 | SITRO-AIS-11 | 400-402 | ||
| 99116 | SITRO-AIS-12 | 400-402 |
2 Likes
Hi Everyone,
I have also observed and decoded RS57S-1 on 435.580 and RS58S-1 on 434.800. Both 2K4 GMSK USP. Does anyone know what these map to?
Good hunting all.
Bob
N6RFM
FN41iq
4 Likes
RS57S is Monitor-4
RS58S is Monitor-3
3 Likes
Thanks everyone! Much appreciated.
2 Likes