Tag: HamTV

Minitioune Software

Minitioune Software by Jean-Pierre Courjaud F6DZP. This screen shot shows the MiniTiouner receiving an excellent signal: Frequency: 1255MHz RF Power: -64 dBm MER: 31.8 dB (Modulation Error Ratio) – Digital S/N Ratio Constellations: strong concentration, proving excellent QPSK demodulation The Minitioune software in Expert Mode Central Panel The tuner is never on the wanted frequency …

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Feb 13

FX0ISS-F4KJT ARISS-Europe HamTV demo successful

The ARISS contact between Collège Andre Malraux, Chatelaillon-Plage F4KJT and Thomas Pesquet KG5FYG/FX0ISS Mon 2017 feb 13 14:00:35 UTC 67 deg, was successful with 19 questions answered, the HamTV downlink was streamed on the new BATC merger facility, so the students, professors, public and media were totally impressed by the event. Live HamTV on 2395Mhz. …

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ARISS HamTV Minitiouner

Following the successful inaugural use of HamTV during ARISS Scheduled Contacts in the UK with ESA Astronaut Tim Peake, there has been much interest in radio amateurs establishing their own HamTV station. Jean-Pierre Courjaud, F6DZP, designer and implementer of the successful Tutioune series of software created a new USB connected DATV decoder and related software …

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European chained HamTV ground stations

To provide 10 minutes of HamVideo reception, a chain of ground stations located along the pass of the ISS footprint, is needed. In Europe, the following stations participate to this chain: For descending passes: EI9FHB, Cork, Ireland F6DZP, Poitiers, France IK1SLD, Casale Monferrato, northern Italy IZ7EVR, southern Italy (not operational) On the world map, one …

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Noise Power Measurement tool (NPM)

Noise Power Measuring Tool  Jean-Pierre Courjaud F6DZP wrote software to facilitate antenna setup. The Noise Power Measuring tool (NPM) can be used to measure the sun noise on S-band. A special version of Orbitron/whispDDE sends commands to the azimuth and elevation motors, providing offsets  from minus 10° to plus 10° from the sun coordinates. The …

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Tutioune 1600 receiving software

Jean-Pierre Courjaud F6DZP wrote dedicated software for the reception of HamVideo signals. The Tutioune 1600 software commands the TT S2-1600 PCI card and handles the transport stream. In ISS mode it also adds the missing DVB tables. The program not only delivers video and audio, but also provides technical parameters such as RF power and …

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HamTV reception with TT S2-1600 PCI card

Since 2014, ground stations have used the Techno Trend TT S2-1600 PCI card for reception of the DATV signals transmitted by the HamVideo transmitter. This card is not produced anymore, but some are offered for purchase on Ebay. The TT S2-1600 PCI card comprises: a zero tuner a QPSK DVB-S demodulator a Transport Stream to …

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HamTV Home Page

HamTV Status The HamVideo DATV transmitter has stopped working April 2018. Provisiuons were that, in such a case, the transmitter should be discarded and disposed of as waste. ARISS succeeded in having the HamVideo transmitter downmassed by a SpaceX vehicle. The parcel was recovered after splashdown in the Pacific and delivered to NASA (Houston). The …

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HamTV Power Levels

The HamVideo power levels in the table at the bottom of this page result from worst case computations, intended for the  evaluation of system efficiency. See Link budget computation by I0KPT. As shown in fig 2, the ISS orbits at about 400km above the surface of the earth. That is the distance between the ISS …

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Oct 22

Gaston Bertels, ON4WF, about “ARISS milestones”

22 October 2016, Gaston Bertels, ON4WF, talked in Ostrów Wielkopolski, Poland at the 6th Polish-wide Conference of Contributors and Sympathizes of ARISS about “ARISS milestones”. It was a excellent time for many people (there was above 100 persons), especially teachers and pupils, who never heard about the HAM radio! More information about the event can be found …

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