Due to work and family commitments and the currently inconvenient timing of the passes I really haven't had a serious attempt at receiving any of the downlinks from the numerous Cubesats launched on the Vega rocket back on Monday February 13.
I have managed to get some faint transmissions from what I believe is Masat-1 which has now been officially designated MagyarSat-OSCAR-72 (MO-72) I have also seen a number of other traces on the waterfall display of the sdr (using the FUNCube dongle) They are in the correct frequency range and appear and disappear as the cluster of cubesats were predicted as passing overhead.
I have managed to make a video of a pass of the SSB VO52(HAMSAT) downlink being received by the FCD this morning using just the antenna in the loft.
Operating a camera in one hand and trying to track the signal isn't that easy, but you get the idea!
I have got a chance this weekend to have a proper attempt at the Vega cubesats.
Wednesday, 22 February 2012
Friday, 10 February 2012
Frequencies and URLs for the student amateur radio satellites on Vega can be seen at http://www.uk.amsat.org/4180
as seen on http://www.uk.amsat.org/4542
Thursday, 9 February 2012
The first qualification Vega flight from the space center at Kourou in the Caribbean is scheduled to take place on February 13.
Vega is a new launch vehicle from ESA/Arianespace to handle small to medium-sized satellite payloads. It is a four-stage launcher tailored to carry the growing number of small scientific spacecraft and other lighter-weight payloads.
The first flight is carrying eight student built amateur radio satellites comprising seven CubeSats and a microsatellite called ALMASat, Arianespace have just released a video showing the payloads.
A full list of the satellites and frequencies and other information about the launch is listed on the Amsat-UK website http://www.uk.amsat.org/4180
ALMASat-1 – University of Bologna, Italy
437.465 MHz 1200 bps FSK and 2407.850 MHz
e-st@r – Politecnico di Torino, Italy
437.445 MHz 1200 bps AFSK
Goliat – University of Bucharest, Romania
437.485 MHz 1200 bps AFSK
MaSat-1 – Budapest University of Technology and Economics, Hungary
437.345 MHz GFSK 625/1250 bps, CW
PW-Sat1 – Warsaw University of Technology, Poland
There are 5 modes of operation:
- Receive only – no downlink
- CW Beacon CW – On-Off Keying (OOK) CW 12 WPM on 435.020 MHz
- BPSK Beacon – BPSK 1200 bps AX25 (1 frame on 20 sec) on 435.020 MHz
- Control communication mode. Downlink BPSK 1200 bps AX25 on 435.020 MHz
- Voice Repeater mode (aka “AO-16″ mode) – uplink 435.020 MHz FM and downlink 145.900 MHz DSB
Robusta – University of Montpellier 2, France
437.325 MHz 1200 bps FM telemetry with one data burst of 20 secs every 1 min
UNICubeSAT -University of Rome, Italy
437.305MHz 9600 bps FSK
There is a lot there to have a go at receiving with the old FUNCube Dongle! I will have to get around to finally construct myself a homebrew 70cm antenna in the next few days.