TURKSAT-3USAT to launch with V/U Linear Transponder

Preparing for TAMSAT linear transponder tests

Preparing for TAMSAT linear transponder tests

TURKSAT-3USAT is a three unit CubeSat built jointly by TURKSAT and the Istanbul Technical University (ITU).

Members of AMSAT-TR (TAMSAT), the Turkish Amateur Satellite Technologies Organisation, have designed and implemented a V/U linear transponder for the satellite to provide amateur radio SSB/CW communications. The transponder input is 145.940-145.990 MHz and the output is 435.200-435.250 MHz, there will be a CW beacon on 437.225 MHz.

TAMSAT V/U Linear Transponder Test

TAMSAT V/U Linear Transponder Test

The VHF/UHF transponder and all other subsystems, except the stabilization, are doubled for redundancy. Where possible, both COTS systems and in-house development are employed.

The power is provided using solar panels and lithium polymer batteries together with super capacitors. Satellite stabilization is accomplished using passive magnetic attitude control system with hysteresis rods. There is a camera payload to take images of the Earth.

TURKSAT-3USAT is expected to launch on April 26 at 0413 UT on a CZ-2D rocket from the Jiuquan Space Center into a 680 km Low Earth Orbit (LEO). The satellite has a de-orbiting system which will make it re-enter the atmosphere at the end of its operational life.

On February 9, 2013 TAMSAT President A. Tahir Dengiz, TA2T, and Vice-President Barış Dinc, TA7W, were at the laboratory in the Istanbul Technical University (ITU) where tests were carried out on the transponder.

TAMSAT team celebrating a successful test

TAMSAT team celebrating a successful test

Further information and pictures of the preliminary testing of the V/U transponder are at
http://www.tamsat.org.tr/tr/turksat-3usat-is-almost-ready/

Read the paper TURKSAT-3USAT: A 3U Communication CubeSat
http://www.nanosat.jp/images/3rd/pdf/%5BNSS-03-0409%5D_TURKSAT-3USAT_A_3U_COMMUNICATION.pdf

Read more on the TAMSAT website which can be seen in Google English at http://tinyurl.com/TurkeyTAMSAT

Facebook https://www.facebook.com/tamsat.amsattr

Twitter https://twitter.com/tamsat_tr

YouTube http://www.youtube.com/user/tamsatvideo

More Cubans Active on Ham Radio Satellites

Raydel Espinet CM2ESP - 640

Raydel Espinet CM2ESP

On the AMSAT bulletin board Raydel Espinet CM2ESP reports that more Cuban radio amateurs have become active on the satellites. He writes:

As many of you should already know, now we have two new Cuban Amateur Operators on FM Satellites. Recently CO7WT and CM2XN have finally achieve their first QSO on SO-50 Satellite. This may look simple, but for a Cuban Ham this is a great success, after many weeks of antenna building, equipment adjustments and learning, this two fellow hams enjoy of the amazing opportunity of make a QSO on a FM Transponder Satellite. They know there is a lot more of operating skills to learn and they are very happy to do so.

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DX Contact Via Amateur Radio Satellite OSCAR 7

Paulo PV8DX made this video of a CW contact with Joe EI5EV over a distance of 7383 km using the amateur radio satellite OSCAR 7.

Although OSCAR 7 is over 38 years old and it’s solar panels have been severely degraded by radiation it still provides some excellent DX contacts.

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AMSAT-UK Attend UK Space Agency CubeSat Conference

Graham Shirville G3VZV on the AMSAT-UK Stand at the UKSA CubeSat Community Workshop

Graham Shirville G3VZV on the AMSAT-UK Stand at the UKSA CubeSat Community Workshop

AMSAT-UK attended the CubeSat Community Conference organized by the UK Space Agency (UKSA) which was held at the Open University.

Workshop sessions included:

• Update on UKube-1

• Plans for UKube-2

• Fostering a stronger and wider UK CubeSat Community
Identifying potential user groups who would benefit from using cubesat data (e.g. commercial applications such as utilities companies, telecoms, and government departments etc), and how to engage with them more effectively [note that the National Space Conference in July 2013 in Glasgow could consider hosting a session to facilitate this process]

• Overcoming Obstacles
Common obstacles associated with launching cubesats and how to clarify/streamline them: availability, cost, export controls, applicability of the Outer Space Act, licences, radio frequency allocation, issue of cubesats as space debris

• Developing Education/Outreach Benefits for the UK with the UKube X Program
STEM outreach and school education benefits and how to take this forward with a UKube X programme, including options for Harwell/other involvement to underpin academic/amateur missions with strong research/outreach/education benefits

• Accelerating Disruptive Technologies
Identifying key technology developments with implications for economic growth and possible sources of external co-funding. Defining a UKube x roadmap to tie in with the NSTP roadmaps. Possibilities for synergies and collaborations with international partners

Pictures Received on 5840 MHz from Amateur Radio Satellite FITSAT-1

Image of ISS taken by the FITSAT-1 CubeSat after deployment

Image of ISS taken by the FITSAT-1 CubeSat after deployment

On December 22 members of AMSAT-DL succeeded in receiving 18 images from the 5840 MHz high-speed downlink of the amateur radio satellite FITSat-1.

In total 22 images were transmitted in the test and 18 were received at the amateur radio facility at Bochum.

The FITSAT-1 CubeSat was developed by students at the Fukuoka Institute of Technology (FIT) in Japan. As well as the high-speed data downlink on 5840.0 MHz the satellite carries several amateur radio payloads: a CW beacon on 437.250 MHz, a telemetry beacon on 437.445 MHz and an optical Morse code LED experiment.

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