FUNcube-1 flight model – Image credit Wouter Weggelaar PA3WEG

Jason Charles N4JTC has posted an inexpensive way to listen and decode the FUNcube-1 (AO-73) telemetry beacon on 145.935 MHz using the cheap RTL-SDR dongle.

See the post on Jason’s website at http://www.n4jtc.com/?p=579

Download the Dashboard App to receive the telemetry and upload it to the Data Warehouse.

FUNcube-1 flight model – Image credit Wouter Weggelaar PA3WEG

The FUNcube-1 (AO-73) spacecraft was switched to its nominal “Autonomous” operating schedule around midday November 23.

This schedule has:

High power telemetry beacon only when in sunlight (also known as “Educational” Mode) and  linear transponder for SSB/CW communications with low power telemetry when in eclipse (also known as “Transponder” Mode).

This switching is controlled automatically by the CCT (Command, Control and Telemetry) subsystem on board.

It is not planned to change this operating schedule in the immediate future.

On Sunday, November 24, the team enabled some new Fitter messages and monitored, with great interest, the telemetry that has been contributed by more than 100 stations around the world and is now displayed and stored in the Data Warehouse.

FUNcube-1 transponder spectrum – Mike Rupprecht DK3WN

The FUNcube Team say:

We cannot over-emphasize just how important this data is to us in helping build up a good knowledge of the operating status of the spacecraft as it orbits the Earth.

Please, please keep it coming in and if you know of anyone who could set up some simple, automated, groundstations in some of the more remote locations then please encourage them to do so for us.

We only have “Whole Orbit Data” for a few channels so we will be relying on all the remote data we can gather.

From reports received there have been many successful QSO’s using AO-73. In the last 24 hours there have been many reports of good signals and smooth sounding audio. We are very grateful for your observations.

Thank you for all your support!

Download the Dashboard App to receive the telemetry and upload it to the Data Warehouse.

The team have not received any new TLEs/Keps and are still using 2013-066B although these appear to be a little late. They hope to get more news on this from the space tracking experts shortly.

FUNcube-1 Radio Communications Subsystem:
• 145.935 MHz BPSK Telemetry 300 mW or 30 mW when the transponder has been activated
• Inverting SSB/CW transponder 300 mW PEP
– 435.150 – 435.130 MHz Uplink LSB
– 145.950 – 145.970 MHz Downlink USB

Satellite TLE Challenge Begins https://amsat-uk.org/2013/11/23/tle-challenge-begins

FUNcube website http://www.funcube.org.uk/

First Transponder Test https://amsat-uk.org/2013/11/22/funcube-1-ao-73-transponder-tested/

FUNcube-1 Deployed !!! https://amsat-uk.org/2013/11/21/funcube-1-deployed/

BBC TV visit FUNcube station at RSGB National Radio Centre
https://amsat-uk.org/2013/11/22/bbc-visit-funcube-station-at-rsgb-national-radio-centre/

FUNcube-1 flight model – Image credit Wouter Weggelaar PA3WEG

The FUNcube Team have had reports of an apparent distortion in the transmitted telemetry and difficulty in decoding around 12:00 UT today.

It is believed that this may have actually been occurring due to the natural phenomena of an active aurora rather than a problem on board the spacecraft. We understand that another spacecraft had the same issues around the same time.

The Team intend to command AO-73 back into autonomous mode during the 2035 UT pass this evening. This will mean that we should have the transponder active when in eclipse and telemetry only when in sunlight.

Everyday we learn something new!

best 73

FUNcube-1 team

Analysis of the telemetry data from FUNcube-1 (AO-73) is continuing. Thank you to all stations who have provided telemetry so far. More telemetry data is needed to enable the FUNcube team to characterise the satellite.

We would encourage stations to download the Dashboard software to receive the telemetry and upload it to the Data Warehouse.

FUNcube website http://www.funcube.org.uk/

First Transponder Test https://amsat-uk.org/2013/11/22/funcube-1-ao-73-transponder-tested/

FUNcube-1 Deployed !!! https://amsat-uk.org/2013/11/21/funcube-1-deployed/

BBC TV visit FUNcube station at RSGB National Radio Centre
https://amsat-uk.org/2013/11/22/bbc-visit-funcube-station-at-rsgb-national-radio-centre/

FUNcube-1 flight model – Image credit Wouter Weggelaar PA3WEG

A test of the Autonomous Mode on the FUNcube-1 (AO-73) SSB/CW linear transponder has been carried out.

It was switched into Autonomous Mode during orbit 32 at 1113 UT on Saturday, November 23. In this mode the transponder will automatically switch on when the spacecraft enters darkness, and switch off again when it enters sunlight.

During the test all radio amateurs in the footprint were encouraged to make their own tests of the transponder up/down links, and make contacts.

Among the contacts reported have been:

Alan ZL2BX: Transponder switched to eclipse mode OK about mid pass over ZL. Good signals from the transponder and had a brief contact with VK2MAL.

Malcolm VK2MAL: Good signals from AO-73 over VK tonight. Stations heard through the transponder were ZL2BX Alan and VK4CBW Wal.

If you did make a contact or test please report the details as a comment on the FUNcube website at http://funcube.org.uk/

Please note that the transponder frequencies have not yet been fully characterised.

FUNcube-1 Radio Communications Subsystem:
• 145.935 MHz BPSK Telemetry 300 mW or 30 mW when the transponder has been activated
• Inverting SSB/CW transponder 300 mW PEP
– 435.150 – 435.130 MHz Uplink LSB
– 145.950 – 145.970 MHz Downlink USB

Analysis of the telemetry data from FUNcube-1 (AO-73) is continuing. Thank you to all stations who have provided telemetry so far. More telemetry data is needed to enable the FUNcube team to characterise the satellite.

We would encourage stations to download the Dashboard software to receive the telemetry and upload it to the Data Warehouse.

FUNcube website http://www.funcube.org.uk/

First Transponder Test https://amsat-uk.org/2013/11/22/funcube-1-ao-73-transponder-tested/

FUNcube-1 Deployed !!! https://amsat-uk.org/2013/11/21/funcube-1-deployed/

BBC TV visit FUNcube station at RSGB National Radio Centre
https://amsat-uk.org/2013/11/22/bbc-visit-funcube-station-at-rsgb-national-radio-centre/

FUNcube-1 flight model – Image credit Wouter Weggelaar PA3WEG

The FUNcube Team are planning to open the SSB/CW linear transponder on the FUNcube-1 (AO-73) CubeSat for a single orbit on Saturday, November 23. The aim of this test is to establish the thermal performance of the satellite when in this mode for an extended period.

All radio amateurs who are in the footprint are welcome to make their own tests of the transponder up/down links, and make contacts. It is planned to switch on the transponder either during the orbit timed at 0937 UT (orbit 31) at the Time of Closest Approach (TCA) to Bletchley Park, or the following orbit at 1113 UT (orbit 32).

If you do make a contact or test please report the details as a comment on the FUNcube website at http://funcube.org.uk/2013/11/22/transponder-test-tomorrow-23-nov-2013/

Please note that the transponder frequencies have not yet been fully characterised.

FUNcube-1 Radio Communications Payload:
• 145.935 MHz BPSK Telemetry 300 mW or 30 mW when the transponder has been activated
• Inverting SSB/CW transponder 300 mW PEP
– 435.150 – 435.130 MHz Uplink LSB
– 145.950 – 145.970 MHz Downlink USB

FUNcube website http://www.funcube.org.uk/

First Transponder Test https://amsat-uk.org/2013/11/22/funcube-1-ao-73-transponder-tested/

FUNcube-1 Deployed !!! https://amsat-uk.org/2013/11/21/funcube-1-deployed/

BBC TV visit FUNcube station at RSGB National Radio Centre
https://amsat-uk.org/2013/11/22/bbc-visit-funcube-station-at-rsgb-national-radio-centre/

BBC presenter John Maguire interviews Graham Shirville G3VZV at the RSGB National Radio Centre

On Friday, November 22 a film crew from the BBC Breakfast show visited the RSGB National Radio Centre (NRC) at Bletchley Park to interview the FUNcube Project team about the new educational amateur radio satellite FUNcube-1 (AO-73).

BBC film Howard Long G6LVB and Jim Heck G3WGM working FUNcube-1 (AO-73)

BBC presenter John Maguire interviewed Graham Shirville G3VZV at the GB3RS station in the NRC.

Other members of the FUNcube team were filmed making a SSB contact from the Bletchley Park car park using the FUNcube-1 linear transponder.

During the visit to the National Radio Centre, John Maguire asked the FUNcube Team to support a visit to a local school, Abbeys Primary School in Bletchley, to meet up with some 10-11 year old pupils and talk to them about the FUNcube project.

Ciaran Morgan M0XTD and BBC crew at Abbeys Primary School in Bletchley

The visit was a huge success, with the school children asking lots of questions. As this was the first educational outreach opportunity after launch, the children were asked to compose a Fitter message which the FUNcube Team will upload to FUNcube-1 (AO-73) when they have decided what it should be! (Teachers’s comment “Might be their home work!”).

The FUNcube news report was broadcast on the BBC One TV Breakfast show on Monday, November 25 at 06:52 and 07:53 as well as on the BBC 24 hour News channel throughout the day. You can watch a recording at http://www.bbc.co.uk/news/science-environment-25084547

Watch the BBC FUNcube item at http://www.bbc.co.uk/news/science-environment-25084547

BBC Radio 5 Outriders Podcast, look for the “Outriders 26 Nov 13: Crypto, crosswords and tiny satellites” edition
http://www.bbc.co.uk/podcasts/series/pods
Direct link to podcast http://downloads.bbc.co.uk/podcasts/fivelive/pods/pods_20131126-0530a.mp3

BBC Breakfast show http://www.bbc.co.uk/programmes/b006v5tb

FUNcube-1 Deployed !!! https://amsat-uk.org/2013/11/21/funcube-1-deployed/

First Fitter Message Uploaded https://amsat-uk.org/2013/11/21/ao-73-first-fitter-message-uploaded/

First Transponder Test https://amsat-uk.org/2013/11/22/funcube-1-ao-73-transponder-tested/

FUNcube website http://www.funcube.org.uk/