January 21, 2022

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Spotted the ISS in the sky yet? How about taking out some spare set and providing it a listen?

Spotted the ISS in the sky yet? How about taking out some spare set and providing it a listen?
Got plans for the weekend? No? How about pulling that Pi out of the drawer or dusting off an old laptop and getting ready to grab some images from the ISS, courtesy of locked-down European Space Agency (ESA) boffins. Decoded image of a test transmission using the same mode the ISS will use – there…

Got plans for the weekend? No? How about pulling that Pi out of the drawer or cleaning off an old laptop and getting ready to grab some images from the ISS, thanks to locked-down European Space Agency (ESA) boffins.

Test image from the ISS (no transmissions until late July/August)

Decoded image of a test transmission utilizing the exact same mode the ISS will utilize– there will not be any real transmissions till late July-August … Source: Among our Windows PCs

Demonstrating what engineers and scientists get up to when they are riding out the present pandemic in their houses, the ESA group has put out a series of tutorials for Windows 7 and 10, macOS, iOS and Android, Ubuntu, and, of course, the Raspberry Pi, on how to get and decipher Slow Scan Tv (SSTV) transmissions from the orbiting outpost.

Those hoping for the most recent and biggest HD video need to look away now: believe more ZX Spectrum packing screen than Netflix 4K cinematics.

Naturally, we had a crack at making it work (utilizing the Windows 10 instructions) and prospered in seeing the test image after delving into the dark arts of the Windows sound mixer. Pay very close attention to the educational video on setting up the Stereo Mixer (we didn’t).

The system utilizes the Web Software Application Defined Receivers (WebSDR) scattered around the globe, which enable multiple users to eavesdrop and tune the receiver at the same time. The audio generated can then be piped into a SSTV decoder (ESA directed us to RX-SSTV, which will have a crack at rendering an image).

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The example cited for a WebSDR by ESA is the one hosted at Goonhilly Earth Station in Cornwall, which enables users to listen in on the 144– 146 MHz VHF band.

Helpfully, the WebSDR gang supplies a list of linked receivers worldwide, and tracking the area of the ISS is relatively easy

Regretfully, there isn’t a schedule for when the ISS will be sending its SSTV information. Amateur Radio on the International Spaceport Station(ARISS) preserves a blog site of occasions however making things work depends on slotting the task into team time.

SSTV has a long history, and was utilized by the Soviet Luna 3 probe to send images from the far side of the Moon.

ESA said it anticipates the next broadcast from orbit will occur in the coming week approximately, to mark the 45 th anniversary of the Apollo-Soyuz Test Project.

This must give hobbyists lots of time to tinker with software receivers or perhaps even established their own And, when it comes to Windows 10, deal with those pesky noise settings that Microsoft demands concealing in the os. ®

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