ANTELSAT

ANTELSAT a Ham Radio SSTV CubeSat, Uruguay


(C)FING edu, Uruguay


ANTELSAT a Ham Radio SSTV CubeSat from Uruguay

http://amsat-uk.org/2013/05/30/antelsat-sstv-cubesat/
I, JE9PEL got a permission to translate to Japanese this amsat-uk article.

ANTELSAT is a 2U CubeSat class satellite with a 70 cm SSTV downlink and
amateur radio AX.25 Digipeater that is planning a Yasny Dnepr launch in
2013. It has been developed by ANTEL (the national telecom service provider)
and Facultad de Ingenieria de la Universidad de la Republica (FING), the
State Faculty of Engineering.

The purpose is to build and operate the first satellite ever launched into
orbit by Uruguay. Its goal is to develop skills in radio and aerospace
engineering, to promote enthusiasm in STEM education at all levels, and
provide challenging activities for undergraduate students. The spacecraft
is planned to transmit colour and infrared images of the surface of the
earth, and to provide several services to radio amateurs (AX.25 digipeater,
telemetry beacon, uplink signal report, SSTV downlink). The mission is
purely experimental and a technology demonstrator of all the satellite
subsystems, which have been custom designed locally.

Communications:
- VHF receiver on 2m amateur band, 1200bps AX25 protocol.
- Telecommand uplink.
- Store and forward (digipeater) service uplink for 3rd party communications.
- UHF transmitter on 70cm amateur band:
- CW beacon.
- Telemetry downlink at 1200bps AX25 protocol.
- Backup downlink for image data via low resolution SSTV.
- Store and forward service downlink.
- S-band transmitter on 2.4 GHz:
- Downlink for payload image data.
- Telemetry backup link.
- 2 redundant transmitters.

Attitude control:
- Attitude determination via magnetometer and photodetectors.
- Active 3-axis control via magnetorquers.

Brochure:
http://iie.fing.edu.uy/investigacion/grupos/lai/files/ANTELSAT_brochure_2012W01.pdf

It is reported that ANTEL contributed nearly $700,000 towards the project
http://tinyurl.com/ANTELSAT-2013

ANTELSAT in Google English, http://tinyurl.com/ANTELSAT

[Supplement]

 CW downlink on 437.280MHz, main downlink on 437.575MHz
 and an S Band downlink on 2403.000MHz have been coordinated.
 http://www.ne.jp/asahi/hamradio/je9pel/sats2014.htm#dnepr