Category Archives: ARISS

Very First HamTV School Contact with Audio – Norwich Schools UK

This is the very first publicly released HamTV school reception with audio. There have been HamTV receptions with audio before, like in 2014 when it was first tested, but as far as I know no school receptions or recordings have included audio.

Not only that, but HamTV has not even been used for school contacts until 2016, and only at UK schools for Tim Peake’s Principa mission. The HamTV audio has never been used because the primary method of communicating has always been the 2 meter FM VHF radio. Additionally, HamTV cannot easily be received for the full 10 minutes that VHF audio can be received.

To work around this there are several HamTV receiving stations in Europe which stream their video over the internet to the school. As one station loses the signal and another picks it up the video is switched, but streaming over the internet introduces a delay which doesn’t match up with the VHF audio. So normally only the video from the HamTV reception is shown and it is out of sync with what the students hear over VHF.

But we can take the recordings and sync them up with the audio and video of the students asking their questions from the school and make a nice video using the higher quality audio from HamTV.

Thanks to Daniel Cussen, EI9FHB for providing the video streams from his station in Ireland and also from F6DZP’s station in France.

Thanks also to Paul Webster, G7KVE, PE7B for the use of some of his audio for the contact. You can see his full reception in Luxembourg here:
https://www.youtube.com/watch?v=sYJuO

This is the official video of the Norwich Schools contact (where I got the video of the students asking their questions):
https://www.youtube.com/watch?v=24c6h

HamTV was tested in 2014 and there was audio
https://www.youtube.com/watch?v=EpFzb

ARISS SSTV Images

ARISS SSTV Images to Commemorate 40th Anniversary of the Apollo-Soyuz Mission

To commemorate the 40th anniversary of this historic international event, the ARISS team has developed a series of 12 Slow Scan Television (SSTV) images that will be sent down for reception by schools, educational organizations and ham radio operators, worldwide.  The SSTV images areplanned to start sometime Saturday morning, July 18 and run through Sunday July 19.  These dates are tentative and are subject to change.  The SSTV images can be received on 145.80 MHz and displayed using several different SSTV computer programs that are available on the internet.

http://ariss-sstv.blogspot.ca/2015/07/ariss-sstv-images-to-commmemorate-40th.html

Thanks to Jeff, (VE3COJ).

 

Slow-Scan Television Transmissions from ISS Set for February 21-23

Amateur Radio on the International Space Station (ARISS) has announced that continuous slow-scan television transmissions are scheduled from Saturday, February 21, at about 1030 UTC until Monday February 23, at about 2130 UTC.The AMSAT-NA website has a pass prediction calculator.

http://www.arrl.org/news/slow-scan-television-transmissions-from-iss-set-for-february-21-23

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