December 22, 2020 — An ARISS Slow Scan TV (SSTV) event is scheduled from the International Space Station (ISS). This will be a special SSTV event to celebrate the 20th anniversary of ARISS on board the International Space Station. The event is scheduled to begin on December 24 at 16:40 UTC and continue through December 31 ending at 18:15 UTC. Dates are subject to change due to ISS operational adjustments.
Images will be downlinked at 145.8 MHz +/- 3 KHz for Doppler shift and the expected SSTV mode of operation is PD 120. Radio enthusiasts participating in the event can post images they receive at the ARISS SSTV Gallery at https://www.spaceflightsoftware.com/ARISS_SSTV/ .
After your image is posted at the gallery, you can acquire a special award by linking to https://ariss.pzk.org.pl/sstv/ and follow directions for submitting a digital copy of your received image.
Den 2:a september (2020) kl 02:02 UTC aktiverade ISS den nya crossbandsrepeatern med en nedlänk på 437.800 MHz.
Meddelandet från ARISS lyder:
ARISS-teamet är glada att meddela att installationen av det första steget i nästa generations radiosystem har slutförts och att amatörradiotrafik med det nu pågår. Detta första steg, kallat InterOperable Radio System (IORS), installerades i ISS Columbus-modul. IORS ersätter Ericssons radiosystem och packetmodul som ursprungligen certifierades för rymdflygning den 26 juli 2000.
Initial drift med det nya radiosystemet är i FM-crossband repeaterläge med en upplänksfrekvens på 145.990 MHz med CTCSS på 67 Hz och en nedlänksfrekvens på 437.800 MHz. Första sändning observerades den 2 september kl 01:02 UTC.
IORS anlände till ISS den 6 mars 2020 ombord på SpaceX CRS-20 resupply-uppdraget. Den består av en speciell modifierad JVC Kenwood D710GA, en ARISS-utvecklad multispänningsmatning och tillhörande kablar. Designen, utvecklingen, tillverkningen, testningen och lanseringen av den första IORS var en otrolig femårig teknisk prestation som uppnåtts av ARISS team av volontärer. Det kommer att möjliggöra nya spännande möjligheter för radioamatörer och studenter. Funktionerna inkluderar en radio med högre effekt, digital packetradio (APRS) och en Kenwood VC-H1 slow scan television (SSTV)-system.
En andra IORS genomgår flygcertifiering och kommer att lanseras senare för installation i den ryska servicemodulen. Detta andra system möjliggör dubbla, samtidiga operationer vilket ger fler möjligheter för radioamatörer. Det ger också redundans för att säkerställa kontinuerlig drift i händelse av ett eventuellt IORS-komponentfel.
Nästa generations utvecklingsarbete fortsätter. För IORS upphandlas delar och totalt tio system tillverkas. Detta inkluderar bla. en L-band-repeater och en Raspberry-Pi, kallad “ARISS-Pi”, som just startat med designfasen.
ARISS drivs nästan helt av volontärer och med hjälp av generösa bidrag från ARISS-sponsorer och individer. Donationer till ARISS-programmet för nästa generations hårdvaruutveckling, drift, utbildning och administration är välkomna – gå till https://www.ariss.org/donate.html för att bidra!
ARISS – 20 år av kontinuerlig amatörradio ombord på ISS!
It is planned Russian cosmonauts will transmit amateur radio Slow Scan Television (SSTV) images from the International Space Station (ISS) during August 4-5 on 145.800 MHz FM (likely using PD-120). It should be receivable across the British Isles and Europe.
Den 6 mars 2020 lyfte CRC-20 från SpaceX med den första delen av nya amatörradioutrustningen kallad IORS.
Från ARISS hemsida kan vi läsa följande om IORS:
During this Holiday Season, when the spirit of giving and receiving gifts reigns high, ARISS received a special gift and delivered a phenomenal gift to the international community. This occurred on Thursday December 19, 2019.
Our international gift to all—students, STEM education, the public and the amateur radio community—was the historic transfer of the first Interoperable Radio System (IORS) flight unit, serial number 1001, to NASA Johnson Space Center for launch on SpaceX-20. The special gift received by ARISS was the approval from NASA Safety to launch the IORS on SpaceX-20 and stow the radio system on the International Space Station. December 19, 2019 was truly a banner day for ARISS!
The IORS is a foundational element of the ARISS next generation radio system and is an incredible engineering achievement by the ARISS hardware team. This first element delivery will support easier radio mode transitions and enable new, exciting capabilities for hams, students and the general public. The IORS will include a higher power radio, an enhanced voice repeater, updated digital packet radio (APRS) capabilities and slow scan television (SSTV) capabilities for both the US and Russian segments. The IORS consists of a special, modified JVCKenwood D710GA transceiver, an AMSAT-developed multi voltage power supply and interconnecting cables.
This first flight IORS will be installed in the ISS Columbus module. A second flight unit is expected to be launched sometime in 2020 for installation in the Russian Service module. A total of 4 flight units and 10 total units will be built by the ARISS hardware team to support on-board flight operations, training, operations planning and hardware testing. Future upgrades and enhancements to the next generation system are in various stages of design & development. These include a repaired Ham Video system (currently planned for launch in mid-to-late 2020), L-band (uplink) repeater, ground command operations capability, LimeSDR signal reception, a microwave “Ham Communicator” and Lunar Gateway prototype experiment.
While yesterday was truly an historic milestone, it should be noted that there is still much “heavy lifting” work to be done to prepare the IORS for Operations on ISS. ARISS has 92 engineering requirements and our operations Phase III safety review to complete. The space agencies take a position of “Trust but Verify.” Thus, these engineering and safety “verifications” all need to be closed out before the IORS can be unstowed and turned on. This will be the ARISS hardware team’s focus over the next few months.
Also, please remember that ARISS is almost entirely run by volunteers. So donations to the ARISS program for next generation hardware developments, operations, education and administrative functions are always welcome. Please go to https://www.ariss.org/donate.html if you want to contribute to our efforts!
In closing, ARISS would like to thank the outstanding contributions of the IORS hardware development team on an incredible radio system. ARISS would like to thank our sponsors and donors for helping us realize the IORS hardware systems. On behalf of the ARISS team, we would like to wish you all a joyful and prosperous Holiday Season—Merry Christmas, Happy Hanukah, and Happy New Year!!
Ad Astra! To the Stars!
73, Frank Bauer, KA3HDO ARISS International Chair AMSAT V.P. for Human Spaceflight Programs
Pass 2019-12-29 08.35 UTC over Sweden. RX by SM0TGU SatNOGS https://network.satnogs.org/observations/1444715/ Replayed with Audacity and decoded by RX-SSTV. The one below decoded direct by SatNOGS software:
