AMSAT-UK upload JOTA greetings message to satellite

Wouter Weggelaar PA3WEG talking about FUNcube-1 to students at Abbeys Primary School in Bletchley

Wouter Weggelaar PA3WEG talking about FUNcube-1 to students at Abbeys Primary School in Bletchley

AMSAT-UK have uploaded a special Jamboree On The Air (JOTA) Greetings Fitter Message to the amateur satellite AO-73 (FUNcube-1).

Scouts and others can receive the message by downloading the Dashboard App software and listening to the beacon on 145.935 MHz (+/- Doppler) SSB.

What is a Fitter Message ?

‘Fitter’ is derived from ‘Twitter’. So it’s like a tweet, but via FUNcube.

It is a short (200 characters maximum) text-like message which can be uploaded to the satellite (by authorised ground stations), and transmitted several times every five minutes or so. It will continue to be retransmitted until such time as it is replaced by a new Fitter Message.
Links for tracking, downloads and other information can be found in the FUNcube-1 / AO-73 panel on the right-hand side of the AMSAT-UK homepage at http://amsat-uk.org/

Data Warehouse – Telemetry Archive http://warehouse.funcube.org.uk/
Dashboard App – Telemetry Decoder http://funcube.org.uk/working-documents/funcube-telemetry-dashboard/

AMSAT-UK on Facebook https://www.facebook.com/amsatuk
AMSAT-UK on Twitter https://twitter.com/AMSAT_UK

FUNcube Whole Orbit Data available for download

AO-73 (FUNcube-1) - Image credit Wouter Weggelaar PA3WEG

AO-73 (FUNcube-1) – Image credit Wouter Weggelaar PA3WEG

From the early planning stage of the project we decided that we would make telemetry information from the AO-73 (FUNcube-1) CubeSat available to end users.

Since deployment the FUNcube Data Warehouse has displayed the latest data:
• Reatime
• Whole Orbit
• High Precision
• Fitter Messages
and of course the upload rankings. Additionally we have made available small csv files for WOD and HiRes.

Starting October 14, we will be making all captured WOD available as weekly csv files.

Please see: http://warehouse.funcube.org.uk/wod.html?satelliteId=2 for the link to the downloads page. It currently up to 26/6/2014 (32 files)

The files are on average:
• 9706 lines (expected 10080) ~ 96.3% capture
• 905 KB

We will play catch up over the next few days and then automate the process.

It it really intended for consumption by an analytical suite such as MatLab, or a DIY one, in a language of your choosing. However, it can be simply graphed in Excel or Open Office Calc.

Feedback would be appreciated.

Enjoy!

73 Dave, G4DPZ

Data Warehouse – Telemetry Archive http://warehouse.funcube.org.uk/

Dashboard App – Telemetry Decoder http://funcube.org.uk/working-documents/funcube-telemetry-dashboard/

6th European CubeSat Symposium

Swiss Space Systems S3

Swiss Space Systems S3

The 6th European CubeSat Symposium will take place from October 14-16, 2014 at Estavayer-le-Lac in Switzerland.

The Symposium has attracted more than 100 abstracts submitted from 31 different countries. Von Karman Institute and Swiss Space Systems are proud to support the CubeSat community by coorganising this leading CubeSat event in Europe, for the first time in Switzerland.

Von Karman Institute continues to act as the coordinator of the World’s most ambitious CubeSat Project QB50, whereas Swiss Space Systems is designing an innovative launcher specifically for small satellites to bring the launch costs to 25% of today’s market value.

The symposium abstracts are available at
https://www.cubesatsymposium.eu/download/BookOfAbstracts_6th_European_Cubesatsymposium_2014.pdf

6th European CubeSat Symposium https://www.cubesatsymposium.eu/

First FUNcube 73 on 73 Award Issued

AO-73 (FUNcube-1) - Image credit Wouter Weggelaar PA3WEG

AO-73 (FUNcube-1) – Image credit Wouter Weggelaar PA3WEG

Paul Stoetzer N8HM reports the first AO-73 (FUNcube-1) 73 on 73 Award has been issued to Wyatt Dirks AC0RA.

The award aims to promote activity on AO-73 satellite. The requirements are straight-forward:

1. Work 73 unique stations on AO-73.
2. Contacts must be made on or after September 1, 2014.
3. There are no geographic restrictions on your operating location.

Congratulations to Wyatt Dirks, AC0RA, for claiming 73 on 73 Award #1. He has submitted a list with a total of 74 unique calls worked on AO-73 since September 1.

It’s been great to hear all the activity on the satellite over the last few weeks. I look forward to hearing and working many more stations, especially after the end of Daylight Saving Time makes the evening passes a bit earlier!

73, Paul Stoetzer, N8HM

Full details of the award at http://amsat-uk.org/2014/08/18/73-on-73-award-announcement/

Postage stamp features amateur radio satellites

LituanicaSAT-1 and LitSat-1 postage stamp

A new Lithuanian postage stamp features the amateur radio satellites LituanicaSAT-1 and LitSat-1.

The two CubeSats were launched to the International Space Station (ISS) on January 9, 2014 and deployed from the ISS on February 28. LituanicaSAT-1 carried a FM transponder and a camera while LitSat-1 had a linear (SSB/CW) transponder developed by by William Leijenaar PE1RAH.

LitSat-1 was the lighter satellite and re-entered the Earth’s atmosphere and burnt up on May 23, the heavier LituanicaSAT-1 remained in orbit until July 28.

Watch a presentation on LituanicaSAT-1 given by Gintautas Sulskus to the 2014 AMSAT-UK Colloquium in Guildford http://amsat-uk.org/colloquium/colloquium-2014/presentation-videos/

LituanicaSAT-1 http://amsat-uk.org/2014/03/26/president-tests-lituanicasat-1-fm-transponder/

LitSat-1 http://amsat-uk.org/2014/03/09/litsat-1-transponder-test-successful/

ESTCube-1 Solar Sail Experiment

ESTCube-1 at press conference in Tallinn before shipping January 21, 2013 - Image credit University of Tartu

ESTCube-1 at press conference in Tallinn before shipping January 21, 2013 – Image credit University of Tartu

I’m glad to announce that after more than a year of preparations on Tuesday, September 16, 2014, the team are starting to deploy the electric solar sail tether on-board ESTCube-1.

The process of burning the tether end-mass and spool locks and reeling out the first few centimeters of tether will start during the 09.06 – 09.19Z pass over Estonia.  This is a high pass and should be visible over most of the Europe.

The next good passes listed below (all in UTC) will be used to download images the telemetry logs and the images:
10.43 – 10.56
18.39 – 18.51
20.15 – 20.28

ESTCube-1 image of Estonia and its neighbours

ESTCube-1 image of Estonia and its neighbours

During the locks release process and after reeling the tether out some centimeters, images will be taken.

The other shorter passes during the day will be used to download the experiment data as quickly as possible (in Estonia, all daily passes are visible, but lowest ones are just couple of degrees above the northern horizon).

If everything is OK with the tether, additional unreeling will take place in coming days.

If you are interested in receiving ESTCube-1 during those exciting passes, the UZ7HO 9600 bps packet softmodem and an Online Telemetry Decoder by Mike Rupprecht DK3WN can be used. But basically any 9600 bps G3RUH TNC or decoder can be used to receive ESTCube-1.

We are looking forward to receiving your reports on the address es5e AT estcube DOT eu, and we would really appreciate if you would also send received data in live, using Mike’s decoder.

With best wishes,
Tõnis Eenmäe
de ES5TF

Facebook https://www.facebook.com/estcube

ESTCube-1 Online Telemetry Decoder by Mike Rupprecht DK3WN
http://www.dk3wn.info/files/estcube_online.zip

73 on 73 Award Update

AO-73 (FUNcube-1) - Image credit Wouter Weggelaar PA3WEG

AO-73 (FUNcube-1) – Image credit Wouter Weggelaar PA3WEG

Paul Stoetzer N8HM provides an update on the 73 on 73 Award for contacts made via the amateur radio satellite AO-73 (FUNcube-1).

Just a reminder that the award period for the 73 on 73 Award begins at 0000Z on September 1st, so begin keeping track of the unique callsigns that you work on AO-73. When you reach 73 unique callsigns in your log, email me at n8hm@arrl.net with a list of calls, date, and time worked (in GMT) and your mailing address. I hope to have a website up soon with an example of what the award will look like.

Some tips for working AO-73:

- Keep in mind the frequency drift on the transponder. The offset needed on your transmit frequency is usually from +10 kHz to +16 kHz. This can vary throughout the pass, requiring frequency adjustments if using computer control. Many find manually tuning the uplink to maintain a constant downlink to work better than computer control.

- I usually start a pass by trying to find myself come into the top edge of the passband (145.970 MHz). To do this, I usually start transmitting around 435.135 MHz and tuning up slowly until I can hear myself enter the passband. Then I can move around the transponder easily. Remember to tune your uplink to maintain an constant downlink frequency (the opposite of FO-29).

- Keep power output down. The transponder has a very sensitive receiver and a very active AGC circuit. Excessive uplink power will not make your signal louder – it will only reduce that available for others on the transponder. With a clear view of the horizon, 5 watts to an Arrow or Elk is plenty for horizon to horizon coverage. Very slightly more might be necessary if you are beaming through trees or other obstructions, but try to keep power to 25-40 watts ERP.

Good luck! Who will claim the 73 on 73 Award #1?

73, Paul Stoetzer, N8HM
Washington, DC, USA (FM18lv)

73 on 73 Award Announcement
http://amsat-uk.org/2014/08/18/73-on-73-award-announcement/

AO-73 http://amsat-uk.org/funcube/funcube-cubesat/

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NEXUS CubeSat Will Have Mode-J Transponder

JAMSAT stand at the Tokyo Ham Radio Fair August 2014

JAMSAT stand at the Tokyo Ham Radio Fair August 2014

The Japan AMSAT Association (JAMSAT) and students at the Nippon University are jointly developing a CubeSat called NEXUS which will have a 145 to 435 MHz (Mode-J) transponder and a 38 kbps data downlink.

JAMSAT CubeSat Board

JAMSAT CubeSat Board

Nippon University students have previously developed the SEEDS and SPROUT satellites. NEXUS is an achronym of “Next Education X (cross) Unique Satellite”, it will be 1U CubeSat with a mass of between 1 and 1.5 kg.

The NEXUS team hope to:
● Provide amateur radio communications via the 145/435 MHz transponder and SSTV
● Download pictures from the 640×480 pixel camera
● Operate the data downlink at 38400 bps QPSK
● Compare the performance of the data downlink when using AFSK, GMSK and QPSK modes

A launch opportunity has not yet been identified.

NEXUS website in Google English http://tinyurl.com/NEXUS-Satellite

NEXUS Blog http://tinyurl.com/NEXUS-Sat-Blog

JAMSAT in Google English http://tinyurl.com/JAMSAT

Lambda-Sat CubeSat – ISS Deployment

Some of the Lambda-Sat Team (right to left) Dr. Periklis Papadopoulos, Kostas Alexandrou, Eriana Panopoulou, Vaggelis Christodoulou, Maria Dimitrakopoulou, Charalabos Koulouris and Simos Kanis

Some of the Lambda-Sat Team (right to left) Dr. Periklis Papadopoulos, Kostas Alexandrou, Eriana Panopoulou, Vaggelis Christodoulou, Maria Dimitrakopoulou, Charalabos Koulouris and Simos Kanis

Lambda-Sat was launched to the International Space Station (ISS) from the Wallops Flight Facility in Virginia on July 13, 2014, in an Orbital Sciences’ Antares rocket CRS-2/ORB-2. It is unclear when deployment will take place but it may be after September 15.

Lambda-Sat

Lambda-Sat

The Lambda team encourages amateur radio operators around the world to listen for and report the Lambda-Sat signal.

Frequency: 437.462 MHz
Downlink: AX.25 Unnumbered Information (UI) packets at 1200 bps AFSK
Transmission Power : 1W
Call Sign KK6DFZ

The Secretary of the Cyprus Amateur Radio Society (CARS) Nestor  has written an article on Lambda-Sat, he says:

The naming of the Λ-sat satellite came from the Greek letter L (Λ – lambda) a reminder of Hellas, Helios, the Greek word Thalassa for sea, the Greek word Lithos which directly translates to stone (meaning “Land of Light”).

The Λ-sat was constructed entirely of Greek volunteers who worked feverishly, selflessly and without any personal gain. Members of Λ-sat contributed to the construction of the satellite system each with their knowledge in robotics, electronics, software development and telecommunications. The group consists of young people from Greece who traveled to Silicon Valley in California to participate in this project.

“I want to motivate the youth in Greece to continue to dream,” says the original initiator of the project, Periklis Papadopoulos, Professor of Aerospace Engineering of the Federal University of California San Jose, which has been awarded from NASA for his contribution with the prize Turning Goals Into Reality (TGIR). As the professor states, “My goal is to demonstrate the capabilities of young people in Greece.” The professor believes that our country could be active in this area and this is not an economic issue, but a question of will alone (!).

Submit reception reports of Lambda-Sat at http://lambdasat.com/?page_id=181

Lambda-Sat http://lambdasat.com/

Facebook https://www.facebook.com/lambdateam

Article on Lambda-Sat by
http://www.cyhams.org/index.php/en/news-and-events/359-the-first-greek-microsatellite-is-a-fact

Schedule for RSGB Convention Released

Ofcom's Ash Gohil and Paul Jarvis G8RMM at 2013 RSGB Convention

Ofcom’s Ash Gohil and Paul Jarvis G8RMM at 2013 RSGB Convention

Ofcom staff will be among those giving presentations at the RSGB Convention which takes place October 10-12.

The Ofcom public consultation on Amateur Radio has been eagerly awaited for many months now and will hopefully have been released before the Convention.

The Society say there will be lots of space and a five lecture stream programme in the new Convention venue at the Kents Hill Conference Centre, Milton Keynes, MK7 6BZ.

Among the presentations are
- UKHASNET, technology and methodology by James Coxon M6JCX
- SDR Techniques by Simon Brown G4ELI
- Digital modes start up by Mike Richards G4WNC
- FUNcube CubeSat by AMSAT-UK
- Amateur radio software developers forum by Michael Wells G7VJR
- 146-147MHz: A New Frontier of Amateur Innovation? by John Regnault G4SWX
- World War 1 Communications by Dr Elizabeth Bruton

RSGB Convention http://rsgb.org/main/about-us/rsgb-convention/

Schedule http://rsgb.org/main/about-us/rsgb-convention/rsgb-convention-2014-provisional-timetable/