Category: Ham Satellite news

Här kommer en sammanfattning av de Cubesats som kom upp under februari 2014:

ISS deployment från den 28/2:

LituanicaSAT-1
• FM Transponder Uplink 145.950 MHz Downlink 435.180 MHz
• AX25 Uplink 145.850 MHz AX25 Downlink 437.550 MHz
• CW Beacon 437.275 MHz
Facebook https://www.facebook.com/Lituanicasat1

LitSat-1
• SSB Transponder Uplink 435.180 MHz Downlink 145.950 MHz
• AX25 Uplink 437.550 MHz Downlink 145.850 MHz
Facebook https://www.facebook.com/palydovas

ArduSat-2
• 9k6 MSK CCSDS data format downlink 437.? MHz
http://www.kickstarter.com/projects/575960623/ardusat-your-arduino-experiment-in-space

UAPSAT
• AX.25 Packet Radio uplink 145.980 MHz downlink 437.385 MHz
http://www.uapsat.info/ Twitter https://twitter.com/uapsat Facebook https://www.facebook.com/uapsat

Japanska Cubesats som kom upp den 27/2:

Downlink frequencies in MHz all +/- 10 kHz Doppler shift:
STARS-II (Mother)  – 437.405 FM AX.25 1200 bps, 437.245 CW
STARS-II (Daughter) – 437.425 FM AX.25 1200 bps, 437.255 CW
ShindaiSat – 437.525 FM AX.25 1200 bps, 437.305  CW (LED beacon)
TeikyoSat-3 – 437.450 FM AX.25 1200 bps, 437.450 CW (Slime Mold from Space)
OPUSAT – 437.150 FM AX.25 1200 bps, GMSK 9600 bps
ARTSAT1-INVADER – 437.200 FM Digitalker and AX.25 1200 bps,  437.325 CW
ITF-1 – 437.525 FM Morse code

Stort tack till AMSAT-UK för förstklassig info!  Thanks to AMSAT-UK for top-of-the-line info about the new Cubesats.

Litsat-1 och LituanicaSat-1 är nu släppta från ISS och har redan hörts!
Lyssnarrapport från DK3WV

Kepler:

LITSAT-1
1 00001U 00001A   14056.09960346  .00015610  00000-0  27403-3 0  7500
2 00001 051.6500 295.2334 0003990 171.7049 342.1851 15.50706756873933
LITUANICASAT-1
1 00002U 00002A   14056.09960346  .00015610  00000-0  27403-3 0  7500
2 00002 051.6500 295.2334 0003990 171.7049 342.1851 15.50706756873933
UAPSAT-1
1 00003U 00003A   14056.09960346  .00015610  00000-0  27403-3 0  7500
2 00003 051.6500 295.2334 0003990 171.7049 342.1851 15.50706756873933

Frekvenser:
LituanicaSat-1: FM Beacon: 437.275 MHz https://www.facebook.com/Lituanicasat1?fref=ts
LitSat-1: FM Beacon: 145.850 MHz https://www.facebook.com/palydovas?fref=ts
UAPSat: FM Beacon: 437.385 MHz https://www.facebook.com/uapsat

Bland alla Cubesats som är på gång nu är LitSat-1 intressant då den innehåller en linjär amatörradiotransponder. Den är planerad att släppas ut från ISS nu på fredag 28/2 och har en beacon på 145.850 MHz.

The LitSat-1 team have issued this statement:

Our country Lithuania is heading towards a historic moment – start of the first Lithuanian satellite in space.  First ever Lithuanian Cubesat Litsat1 is due to be launched within couple of days only – on Feb 28 at 07:30 UT from the International Space Station (ISS).

We are very interested in getting the first data from our small satellite as soon as possible, therefore we would like to ask your help with that.

We will send special QSL cards for radio amateurs with first reports about received signals from our satellite. The 3 stations first received the signals from the LitSat1 satellite will receive QSL cards signed by the High level officials of the Lithuanian government.

Please send your SWL reports (screen snapshots) with received packet data of Litsat-1 beacon to Kaunas University of Technology Radio Club. Contact point E-mail: address: litsat@ktu.lt

Please find below the technical data for the reception of Litsat 1:
Beacon/TLM down link 145.850 MHz
Beacon RF packets are AX.25 UI frames https://www.tapr.org/pub_ax25.html Main parameters of the beacon frames are: TX baud rate 9600 bps (G3RUH), repetition period ~4.5s, beacon duration ~0.5 s, source call address – TNC, destination call address – LY1LS.

Digital data: Telemetry
Digital communication with Litsat-1 is based on Helium 100 (HE-100) transceiver.
The payload info field starts with the 2 header bytes “Bb”=0×4262 (Beacon broadcast), following with 2 bytes indicating further data field length (should be 0×0087), then the sat status telemetry structure (114 bytes) and finishing with the  short text message (21 bytes).

For any other information you are very welcome to contact us: litsat@ktu.lt

A linear transponder will be activated later.
Uplink 435.150 MHz LSB
Downlink  145.950 MHz USB
Bandwidth ±15 kHz from center
CW beacon   435.1375 MHz (LY1LS/B)
Normal mode – transponder, beacon OFF

73! Darius Kybartas LY3DA

Litsat-1 team
Kaunas University of Technology
Email: litsat@ktu.lt

LitSat-1 on Facebook https://www.facebook.com/palydovas