Archivo de la etiqueta: communication

ISS Slow Scan TV for 45th Apollo-Soyuz anniversary

Artist’s impression of the docking of the Apollo and Soyuz spacecraft

ESA Education has released tutorial videos explaining how to make use of various computers and mobile devices to receive the International Space Station SSTV transmissions on 145.800 MHz FM that are expected for the 45th anniversary of the Apollo-Soyuz mission.

Apollo–Soyuz was the first international space mission, carried out jointly by the United States and the Soviet Union in mid-July 1975 and ESA Education say the anniversary will be marked by SSTV transmissions from the ISS.

See the collection of Tutorials videos on how to receive SSTV pictures from the International Space Station for specific operating systems such as Windows 10, Apple iOS & Mac OSX, Android, Raspberry Pi, etc at
https://www.esa.int/ESA_Multimedia/Sets/Radio_ISS/(result_type)/videos

YouTube Tutorials Playlist
https://www.youtube.com/watch?v=HtC-BPcMruA&list=PLbyvawxScNbt5Mjfty4Ik-Tt6du-6N5jD

ESA Education https://twitter.com/ESA__Education/status/1281140713237946370

Wiki Apollo-Soyuz https://en.wikipedia.org/wiki/Apollo%E2%80%93Soyuz

Read the Raspberry Pi article Pictures from space via ham radio
https://www.raspberrypi.org/magpi/pictures-from-space-via-ham-radio/

ISS SSTV info and links https://amsat-uk.org/beginners/iss-sstv/

What is Amateur Radio? http://www.essexham.co.uk/what-is-amateur-radio

Free UK amateur radio online training course https://www.essexham.co.uk/train/foundation-online/

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m5aka AMSAT-UK

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ESA promote amateur radio in ISS SSTV video

The ESA space agency has released a new video ‘How to get pictures from the International Space Station via Amateur Radio’.

Did you know that astronauts on the International Space Station send pictures from space to ground over amateur radio that you yourself can get at home using your computer? ESA show you how to get them, step by step.

The video features radio amateur David Honess 2E0XDO (ex-M6DNT).

Watch How to get pictures from the International Space Station via amateur radio

Read the Raspberry Pi article Pictures from space via ham radio
https://www.raspberrypi.org/magpi/pictures-from-space-via-ham-radio/

ISS SSTV info and links https://amsat-uk.org/beginners/iss-sstv/

What is Amateur Radio? http://www.essexham.co.uk/what-is-amateur-radio

Free UK amateur radio online training course https://www.essexham.co.uk/train/foundation-online/

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m5aka AMSAT-UK

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DIY Weather Satellite Ground Station

Weather Satellite Reception

Sasha M6IOR and Sophie M6NYX have made available a Guide for the reception of NOAA satellite images using software defined radio on Windows or MacOS.

The guide suggests a few ways to receive an Automatic Picture Transmission (APT) from active National Oceanic and Atmospheric Administration (NOAA) satellites in the 137 MHz band.

Read the guide at https://publiclab.org/notes/sashae/06-26-2020/diy-satellite-ground-station

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m5aka AMSAT-UK

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CAS-6 antenna deployed, transponder activated

CAS-6 Satellite

The CAMSAT CAS-6 satellite was launched December 20, 2019. Alan Kung BA1DU reports the V/UHF antenna was deployed on Saturday, June 20, 2020 and the linear transponder activated.

Due to some OBC failures, CW beacon and GMSK telemetry are not working properly. At present, only the carriers are transmitted on the two frequencies, the linear transponder has been put into operation. We will then try to diagnose and then determine whether the CW and telemetry data stream transmission can be recovered.

Frequencies:

• CW Telemetry Beacon: 145.910 MHz

• AX.25 4.8kbps GMSK Telemetry: 145.890 MHz

• U/V Linear Transponder Downlink: 145.925 MHz, 20 kHz bandwidth, Inverted

• U/V Linear Transponder Uplink: 435.280 MHz

TLE:

CAS-6(2019-093C)
1 44881U 19093C 20170.81187924 -.00001118 00000-0 -13581-3 0 9991
2 44881 97.9575 246.8556 0015830 36.2280 323.9959 14.81412013 26893

73!
Alan Kung, BA1DU

Further information on the 35 kg micro-satellite is at
https://amsat-uk.org/2019/12/19/camsat-cas-6-satellite/

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m5aka AMSAT-UK

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Raspberry Pi FUNcube satellite telemetry decoder now available

RPi decoder receiving telemetry from JY1Sat in Interactive mode

The FUNcube Team has announced the availability of FUNcube CubeSat satellite telemetry decoder software for the popular Raspberry Pi computer board.

The original FUNcube telemetry decoder and Dashboard was designed to run on Windows devices and the FUNcube team did publish the telemetry format in accordance with the Amateur Satellite Service traditions and requirements. The Team had planned to opensource the Telemetry Decoder and provide an implementation on Linux, but several new missions after the original FUNcube-1 delayed their plans somewhat.

Late 2019, the Team had the opportunity to develop a low power/low impact ground station, based on Docker containers, for use at the Neumayer III Antarctic base at DP0GVN. This led us to evolve the code such that it would run on a Raspberry Pi. Duncan, 2E0GTV, has been able to produce this variant of the code and allow us to fully realize our Open Source commitment to the FUNcube project.

The Linux implementation is suitable for use on Raspberry Pi versions from 2B+ to 4 and with a FUNcube dongle (Pro or Pro+). The software will tune a dongle to search for and track all three FUNcube compatible spacecraft currently operational. The Telemetry Decoder is configured with five active decoders operating concurrently so it can deal with situations where more than one of the spacecraft are overhead at the same time.

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

The decoder and warehouse uploader run as a Docker container for convenience shell scripts have been provided to launch the container in one of two modes:

• “Interactive Mode” is when the Telemetry Decoder operates in the foreground , when FUNcube compatible telemetry is received, the corresponding hex data is displayed on the terminal screen.

• “Background Mode” allows the telemetry decoder to run as a Docker image in the background where it operates much like any other background service on Linux. This mode allows for the automatic restarting of the telemetry decoder after a shutdown or reboot of the Raspberry Pi, therefore making it suitable for a remote deployment situation.

*Both modes, when connected to the internet, will upload the received data to the FUNcube Data Warehouse and the totals displayed on the Ranking Page in the normal manner.

*Uploading to the warehouse requires online registration with the FUNcube Data Warehouse.

All the code for the telemetry decoder, and the scripts to build the Docker images, are now published online under a GPL Open Source License at the FUNcube-Dev GitHub account
https://github.com/funcube-dev

Alternatively, it possible to buy a pre-formatted microSD card for the Pi from the AMSAT-UK shop at https://shop.amsat-uk.org/

Full instructions PDF can be downloaded from https://tinyurl.com/RPi-FUNcube-Decoder

FUNcube Data Warehouse http://warehouse.funcube.org.uk/missions

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m5aka AMSAT-UK

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