16 August 2018 It turns out that this is 1k2 phase modulation with a deviation of approximately 1 radian. I had never seen something like that in an Amateur satellite.
The coding is standard AX.25, and the contents of the packet (manually decoded) are:
RS8S>ALL:This is SWSU satellite TANUSHA-3 from Russia, Kursk<0x0d>
------
U frame UI: p/f=0, No layer 3 protocol implemented., length = 68
dest ALL 0 c/r=1 res=3 last=0
source RS8S 0 c/r=0 res=3 last=1
000: 82 98 98 40 40 40 e0 a4 a6 70 a6 40 40 61 03 f0 ...@@@...p.@@a..
010: 54 68 69 73 20 69 73 20 53 57 53 55 20 73 61 74 This is SWSU sat
020: 65 6c 6c 69 74 65 20 54 41 4e 55 53 48 41 2d 33 ellite TANUSHA-3
030: 20 66 72 6f 6d 20 52 75 73 73 69 61 2c 20 4b 75 from Russia, Ku
040: 72 73 6b 0d rsk.
------
I’ll try to do a complete GNU Radio decoder and put up a blog post over the next few days.
73, Dani, EA4GPZ
1k2 AFSK messages and voice
voice sample #1
voice sample #2
Soundmodem UZ7HO – 1k2 AFSK
Fm RS8S To ALL Via SWSU,RS0S
: :This is TANUSHA-3 satellite from Russian Federation, Kursk{823
: :I'm a part of Radioskaf and the third satellite of AIG{824
: :My mission is to find some alternative energy on orbit{825
: :working on Espruino I'll be updated over time (thanx to G.Williams){826
: :Great thanx to Samburov and Tolkachev from Energiya{827
: :This is TANUSHA-3 satellite from Russian Federation, Kursk{829
5 Oct 2018 Voice messages are now clear 🙂
RS8S …
English message
~ of South West State University Russia, Kursk welcome the ~ satellite ~ unusual South West ~
serious ~ south-west stake leaders. It was launched by Russian cosmonauts from the International Space Station.
We wish our world to be always peaceful and …
Russian message
Мы, студенты Юго-Западного государственного университета, приветствуем жителей Земли с борта созданного нами спутника “Танюша-ЮЗГУ”. Этот спутник входит в состав уникальной группировки малых космических аппаратов серии “Танюша-ЮЗГУ” и был запущен российскими космонавтами с борта Международной космической станции. Желаем, чтобы на нашей общей планете всегда был мир. А каждый её житель мог созидать, творить, любить и нести добро.
Chinese message
Spanish message
~ Universidad Estatal del Suroeste, de la ciudad de Kursk, Rusia, saludamos a los habitantes de la Tierra desde nuestro nanosatélite Tanyusha-YuZGU. Este satélite forma parte de un grupo único de pequeños aparatos espaciales de la serie Tanyusha-YuZGU y ha sido lanzado por astronautas rusos desde la Estación Espacial Internacional. Deseamos que el planeta que compartimos viva siempre en paz y que cada uno de sus habitantes pueda crear, amar y ser portador de bien.
1k2 AFSK beacon every 1 minute: from RS8S To ALL This is SWSU satellite TANUSHA-3 from Russia, Kursk and during the messages 🙁
Tanusha-2
1:Fm RS7S To ALL [UTC:13:03:29R]
This is SWSU satellite TANUSHA-2
Bat1 7344mV Bat2 7295mV
T1 5 T2 5
1:Fm RS7S To ALL [UTC:14:41:19R]
This is SWSU satellite TANUSHA-2
Bat1 7393mV Bat2 7326mV
T1 7 T2 6
Tanusha-1
1:Fm RS6S To ALL [UTC:12:20:38R] [AA] [+---+++]
This is SWSU satellite TANUSHA-1
Bat1 7356mV Bat2 7344mV
T1 7 T2 0
Status
October 2018
Tanusha-3’s voice messages are now clear. Some parts are difficult to understand due to the 1k2 AFSK transmissions. Tanusha-4 is silent.
21 Aug 2018
Tanusha-3 and Tanusha-4 are in sync and operational. Commanding and HK telemetry is expected from 22 Aug 2018 on.
20 June 2018
On June 20, Tanusha 3 was connected to one of the ARISS Service Module antennas and will transmit from 0730-1200 UTC on 437.05 MHz. These FM transmissions should include greetings from students in several languages, including Russian, English, Spanish and Chinese. The ARISS-Russia team planned also to retransmit these signals on the standard ARISS 2-meter downlink, 145.80 MHz using the JVC Kenwood D700 radonboardis still on-board ISS.
08:35 UTC – no signals on 437.050 MHz, strong downlink on 145.800 MHz (ARISS cross band repeater) but not from Tanusha-3 10:12 UTC – no signals on 437.050 MHz 11:45 UTC – no signals on 437.050 MHz
SP8CGR calling CQ on the crossband repeater 🙁
Tanusha-4 was scheduled to be switched on for the same period on June 21st. But even here I could nothing hear from the satellite. 🙁
7 July 2017
audio spectrum – extreme QRM
taxi driver on 145.800MHz repeated by Tanusha 🙁
chinese message:
15 July 2017
english message
spanish message
russian message
chinese message (thanks Tetsu, JA0CAW)
Two Russian satellites are planned to be activated inside the International Space Station (ISS) Russian Segment as part of a verification test from July 4-8.
Tanusha 1 and 2 are also known as Radioskaf-6 and 7(RS-6, RS-7). They are 3U CubeSat with handle. Tha handle must be use for release by cosmonaut hands. They were delivered to ISS by Progress MS-06 on 14 June, 2017.
The satellites will eventually be deployed by hand from the ISS during a Russian space walk tentatively scheduled for August 17, 2017.
The satellites Tanusha 1 and Tanusha 2, will be downlinked at 145.80 MHz. Transmissions from Tanusha 1 should begin around 18:30 UTC on July 4. Transmissions will cease on July 6 from 08:20 till 18:00 UTC to allow the satellites to be swapped out.
Tanusha 2 will then be activated beginning on July 6 around 18:00 UTC and continue until July 8 at 10:30 UTC.
The satellites will broadcast greeting messages in Russian, English, Spanish and Chinese.
30 June 2017
Two Russian satellites are planned to be activated inside the International Space Station (ISS) Russian Segment as part of a verification test from July 4-8. The satellites will eventually be deployed by hand from the ISS during a Russian space walk tentatively scheduled for August 17, 2017. The satellites Tanusha 1 and Tanusha 2, will be downlinked at 145.80 MHz. Transmissions from Tanusha 1 should begin around 18:30 UTC on July 4. Transmissions will cease on July 6 from 08:20 till 18:00 UTC to allow the satellites to be swapped out. Tanusha 2 will then be activated beginning on July 6 around 18:00 UTC and continue until July 8 at 10:30 UTC. The satellites will broadcast greeting messages in Russian, English, Spanish and Chinese. More details will be made available at https://www.swsu.ru/.
