Tag Archives: ARISS

Radio Waves: Signals from Mars, Two More Hamstronauts, M17 Digital Voice Mode, and Climbing Trees for a Better Signal

Radio Waves:  Stories Making Waves in the World of Radio

Because I keep my ear to the waves, as well as receive many tips from others who do the same, I find myself privy to radio-related stories that might interest SWLing Post readers.  To that end: Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting stories making waves in the world of radio. Enjoy!

Many thanks to SWLing Post contributors Troy Riedel, LG, Ron and the ARRL News for the following tips:


Radio Signals from Mars (Spaceweather.com)

How close is Mars? Close enough for radio reception. On Oct. 4th, amateur radio operator Scott Tilley picked up a carrier wave from NASA’s Mars Reconnaissance Orbiter (MRO) circling the Red Planet. Turn up the volume and listen to the Martian Doppler shift:

Tilley is a leader in the field of satellite radio. Dead satellites, zombie satellites, spy satellites: He routinely finds and tracks them. “But this was a first for me,” he says. “A satellite around Mars!”

It’s not easy picking up radio signals from distant planets. NASA does it using the giant antennas of the Deep Space Network. Tilley uses a modest 60 cm dish in his backyard in Roberts Creek, BC. This week’s close encounter with Mars set the stage for his detection.

“MRO’s signal is weak, but it is one of the louder signals in Mars orbit,” says Tilley. “The spacecraft has a large dish antenna it uses as a relay for other Mars missions. With the proximity of Mars these days, it was the perfect time to try.”[]

Two More Astronauts Earn Amateur Radio Licenses (ARRL News)

Although the lockdown of Johnson Space Center (JSC) postponed amateur radio training and licensing over the past 7 months, NASA ISS Ham Project Coordinator Kenneth Ransom, N5VHO, was able to work with all of the new astronaut-class graduates, as well as offer some refresher courses with already-licensed astronauts. Licensed astronauts on the International Space Station (ISS) may operate the on-station ham radio equipment without restrictions.

Astronauts often participate in Amateur Radio on the International Space Station (ARISS) contacts with schools and groups on Earth.

NASA Astronaut Kayla Barron, who completed her introductory course in June and received basic ham radio operations training in late September, recently tested and received the call sign KI5LAL.

European Space Agency astronaut Matthias Maurer passed his amateur radio exam on July 30, and he got his basic ham operations training in July. He now is KI5KFH.

Astronauts Shane Kimbrough, KE5HOD, and Shannon Walker, KD5DXB, completed the refresher course earlier this year. Two other new astronauts are in the queue to take the Technician license exam. — Thanks to Rosalie White, K1STO[]

M17 Aims to replace proprietary ham radio protocols (Hackaday.io)

While M17 might sound like a new kind of automatic rifle (as actually, it is), we were referring to an open source project to create a ham radio transceiver. Instead of paraphrasing the project’s goals, we’ll simply quote them:

The goal here should be to kick the proprietary protocols off the airwaves, replace DMR, Fusion, D-Star, etc. To do that, it’s not just good enough to be open, it has to be legitimately competitive.

Like some other commercial protocols, M17 uses 4FSK along with error correction. The protocol allows for encryption, streaming, and the encoding of callsigns in messages. There are also provisions for framing IP packets to carry data. The protocol can handle voice and data in a point-to-point or broadcast topology.

On the hardware side, the TR-9 is a UHF handheld that can do FM voice or M17 with up to 3 watts out. The RF portion uses an ADF7021 chip which is specifically made to do 4FSK. There’s also an Arm CPU to handle the digital work.[]

Armed with a radio, Cambodian girl climbs tree to access education (SE Asia Globe)

When Cambodian schools closed due to Covid-19, poor internet access and a lack of minority language materials made distance learning in rural communities near impossible. But armed with a simple radio, children are rising above these obstacles to their education

Jumping down from the tree near her home, Srey Ka assumes her spot in the shade underneath as she adjusts the dials on her radio. Her pet piglet remains asleep at her feet, twitching his nose as he dreams, his belly full of leftover rice. Around her, cows meander by, their ringing bells competing with the sound of static from her radio.

While her school is still closed due to Covid-19 regulations, she still wears her Grade 3 uniform as she attempts to locate a signal. She’s listening out for distance learning programmes – six hours of educational radio broadcasts per week for children in Grades 1-3, some of which are in her ethnic minority language.

It was August and Srey Ka had just received a radio from international nonprofit Aide et Action, two weeks before her school reopened as pandemic measures eased in Cambodia in early September.

From the Phnong ethnic minority group, Srey Ka struggled to find learning resources in her language during school closures. Eager to cram as much as she can before returning to school, Srey Ka tied the antenna of her radio to the highest point of a tree to get the best reception. Even a clear radio signal is hard to come by in the small fishing village of Pun Thachea, located along a remote stretch of the Mekong river in Cambodia’s northeast Kratié province.[]


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Radio Waves: Digital Broadcasts in South Africa, Cold War Broadcasting in Late Soviet Era, Possible Ban on RFI Producers in Sweden, and Ham Radio on the ISS

Radio Waves:  Stories Making Waves in the World of Radio

Because I keep my ear to the waves, as well as receive many tips from others who do the same, I find myself privy to radio-related stories that might interest SWLing Post readers.  To that end: Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting stories making waves in the world of radio. Enjoy!

Many thanks to SWLing Post contributors Paul, Michael Bird,  William Lee, Rob PE9PE, and the Southgate ARC for the following tips:


SABA partners with T&A and Sentech to deliver digital radio in SADC (Advanced Television)

The Southern African community will soon enjoy digital audio broadcasts, thanks to an initiative lead by a South African based entity, Thembeka & Associates that has taken the lead in implementing the much anticipated interactive radio solution.

This was announced by the Secretary-General of the Southern African Broadcasting Association, SABA, Mr Cecil Jarurakouje Nguvauva, following the conclusion of initial agreements between the participating entities. Welcoming the digital radio solution to the SADC region, Nguvauva emphasised the need for rural communities to be engaged fully in the developmental agenda of the respective African governments if the planned development is to add value to the lives of the most disadvantaged members of our society.

Chief Executive Officer of Thembeka & Associates, Madam Thembeka Kaka has hailed this initiative a huge success for the continent and a dream come true for her institution. Madam Kaka added that as a member of the National Committee on ICT Chamber Accessible Broadcasting for People Living with Disabilities, she has passionately driven this project for a long while. Madam Kaka added that “Following the announcement of the Policy Directive that has introduced Digital Sound Broadcasting by the South African Minister of Communications & Digital Technologies, Stella Ndabeni-Abrahams in July this year. I have since realised that greater opportunities have emerged for the broadcast industry as a whole. And this initialises an evolution of radio broadcasts going forward,” she stated.

Sentech’s Meyerton Radio Shortwave site in South Africa will carry the Digital Sound Broadcasting Shortwave Transmission from the broadcast centre in Southern Africa to the rest of SADC countries.

For the initial stage, only six countries are earmarked for the coverage, before it is rolled out to the rest of the SADC Region. The targeted countries are Namibia, Botswana, Lesotho, Eswatini, Zambia and South Africa. The rapid deployment is planned to work alongside the existing analogue radio service, which will seamlessly transition to a fully-fledged Digital Radio transmission in SADC. The receivers to be deployed will have the capabilities to receive and transmit both Analogue and Digital radio signal on FM and AM.

The primary purpose of the initiative is for governments and various newsmakers to urgently provide vital information to all citizens, especially the rural, remote and marginalised vulnerable communities. The outbreak of COVID-19 has amplified the need for this undertaking, that has highlighted risk areas in our various communities. Particular emphasis will be given to the following sectors in the respective communities: Education Sector; Health Sector; Socio-Economic factors; Gender issues; Youth & Disability.[]

Listening Out, Listening For, Listening In: Cold War Radio Broadcasting and the Late Soviet Audience (Wiley Online Library)

Abstract

This article interrogates the well?known phenomenon of western broadcasting to the Soviet Union from the little?known vantage point of the audience’s sonic experience and expression. I use the example of the BBC’s main popular music program in the late USSR, Rok posevy, with its remarkable presenter, Seva Novgorodsev, to explore fundamental questions about the who, how, and why of listening to the so?called “enemy voices.” The popularity of Novgorodsev’s show, I argue, is best understood in the context of the Soviet soundscape and, in particular, of longstanding Soviet media practices, including radio jamming and Soviet ideologies of the voice. Novgorodsev’s Rok posevy presented listeners with a powerful alternative sociocultural space, one that promoted models of authority and community very different from Soviet norms and, indeed, antithetical to Soviet norms.[]

Swedish Electrical Safety Agency threatens ban on sale of optimizers (Southgate ARC)

In Sweden the Swedish Electrical Safety Agency may ban the sale of optimizers used in Solar Panel installations due to the high level of RF Pollution they produce

A translation of an SSA post reads:

The Swedish Electrical Safety Agency wants to remove optimizers that spread interference. “It should be easy for the electrician to do the right thing.”

– We want to remove all solar cell products that spread disruption from the market. It should be easy for the electrician to do the right thing, and if you choose CE-marked gadgets and follow the manufacturer’s instructions, the system should be nice, says Martin Gustafsson, who is an inspector in market control at the Swedish Electrical Safety Agency. reports of disturbing solar cells. In addition to radio amateurs such as Anders Ljunggren, the  mobile operator Telia is among those affected . The Swedish Electrical Safety Board has made inspection visits to disturbing facilities, and carried out a market review of optimizers and inverters from eleven different manufacturers.

“They take advantage of a gap in the standard and instead hide behind a general EMC standard.”

The report is not complete yet. However, one of the conclusions is that a number of manufacturers of interfering products have chosen not to use the standard developed for photovoltaic products, but which has not yet been harmonized by the European Commission.

– They use a gap in the standard and instead hide behind a general EMC standard, which does not make any demands on the dc side. This makes our evidentiary situation difficult. But if the disruption problems are not solved, the products can be banned from sale, says Martin Gustafsson.

Text:  Charlotta von Schultz – www.elinstallatoren.se

Thank you SM5TJH / Janne for the information
Source SSA https://tinyurl.com/SwedenSSA

New Ham Radio Onboard The ISS Is On The Air (K0LWC Blog)

Ham Radio operators have enjoyed making contact with the ISS for many years. The holy grail has always been talking to ISS astronauts on FM simplex (145.800) — but those can be rare chance encounters. Ham radio operators have also enjoyed slow-scan television (SSTV) broadcasts and APRS packet radio via the ISS digipeater. Now we get to work the world’s most expensive FM repeater thanks to the new InterOperable Radio System (IORS) installed on the ISS.

The InterOperable Radio System (IORS) replaces an ancient Ericsson radio system and packet module that were certified for spaceflight over two decades ago. The 5 watt HT that was aboard the ISS was getting worn out after many years of use. The Ericsson radio looks like something from a 1990s episode of Cops.

The new IORS was launched from Kennedy Space Center on March 6, 2020 onboard the SpaceX CRS-20 resupply mission. It consists of a custom space-modified Kenwood D710GA transceiver and an ARISS-developed multi-voltage power supply. The equipment was installed by NASA astronaut Chris Cassidy (KF5KDR).

New Kenwood D710G ‘Space Flight Edition’

The radio now being used is a Kenwood D710G and was engineered specifically for space flight. JVCKENWOOD USA and the ARISS worked closely to modify the D710G. The upgrades were performed by JVCKENWOOD and include:

  • Output power is hardware limited to 25 watts for the safety of the International Space Station
  • Custom firmware and menus tailored for operation onboard the ISS.
  • Higher output/high-reliability fan to allow continuous repeater operation.

Continuous fan operation is an important feature in space for the reliability of the radio. There is no convection in microgravity, so all heat-generating components need to be cooled by moving air or conduction. If the radio burns up, there isn’t a Ham Radio Outlet down the street to grab parts.[Continue reading the the full article at K0LWC’s blog…]


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The International Space Station now has an accessible FM Repeater

If you’ve been following ham radio news lately, no doubt you’ve heard that the International Space Station now has an FM repeater in operation. Pretty much any amateur radio operator can use this repeater with a capable dual band radio and (ideally) a directional antenna.

Here’s the information about the new system from an ARISS news release:

First Element of ARISS Next Generation (Next-Gen)
Radio System 
Installed in ISS Columbus Module

September 2, 2020—The ARISS team is pleased to announce that set up and installation of the first element of our next generation radio system was completed and amateur radio operations with it are now underway. This first element, dubbed the InterOperable Radio System (IORS), was installed in the International Space Station Columbus module. The IORS replaces the Ericsson radio system and packet module that were originally certified for spaceflight on July 26, 2000.

Initial operation of the new radio system is in FM cross band repeater mode using an uplink frequency of 145.99 MHz with an access tone of 67 Hz and a downlink frequency of 437.800 MHz. System activation was first observed at 01:02 UTC on September 2. Special operations will continue to be announced.

The IORS was launched from Kennedy Space Center on March 6, 2020 on board the SpaceX CRS-20 resupply mission. It consists of a special, space-modified JVC Kenwood D710GA transceiver, an ARISS developed multi-voltage power supply and interconnecting cables. The design, development, fabrication, testing, and launch of the first IORS was an incredible five-year engineering achievement accomplished by the ARISS hardware volunteer team. It will enable new, exciting capabilities for ham radio operators, students, and the general public. Capabilities include a higher power radio, voice repeater, digital packet radio (APRS) capabilities and a Kenwood VC-H1 slow scan television (SSTV) system.

A second IORS undergoes flight certification and will be launched later for installation in the Russian Service module. This second system enables dual, simultaneous operations, (e.g. voice repeater and APRS packet), providing diverse opportunities for radio amateurs. It also provides on-orbit redundancy to ensure continuous operations in the event of an IORS component failure.

Next-gen development efforts continue. For the IORS, parts are being procured and a total of ten systems are being fabricated to support flight, additional flight spares, ground testing and astronaut training. Follow-on next generation radio system elements include an L-band repeater uplink capability, currently in development, and a flight Raspberry-Pi, dubbed “ARISS-Pi,” that is just beginning the design phase. The ARISS-Pi promises operations autonomy and enhanced SSTV operations.

ARISS is run almost entirely by volunteers, and with the help of generous contributions from ARISS sponsors and individuals. Donations to the ARISS program for next generation hardware developments, operations, education, and administration are welcome — please go to https://www.ariss.org/donate.html to contribute to these efforts.

ARISS–Celebrating 20 years of continuous amateur radio operations on the ISS!

If you’d like to get a taste for what it’s like making contacts via the ISS repeater, check out this video from K0LWC (thanks for the tip, Paul):

Of course, you don’t have to be an amateur radio operator to listen to the traffic on the ISS repeater. All you need is a scanner or receiver that can tune to the downlink frequency of 437.800 MHz and coordinate your listening session with an ISS pass (I like using NASA’s Spot the Station service). You’ll stand a much better chance of working or listening to the ISS repeater with a high pass.

Have you made a successful contact via the ISS repeater already or listened to the repeater traffic? Please comment!

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Radio Waves: Radio Garden, BBC Budget, Legacy of Ronan O’Rahilly, and ARISS to Begin Experimental Demonstrations

Radio Waves:  Stories Making Waves in the World of Radio

Because I keep my ear to the waves, as well as receive many tips from others who do the same, I find myself privy to radio-related stories that might interest SWLing Post readers.  To that end: Welcome to the SWLing Post’s Radio Waves, a collection of links to interesting stories making waves in the world of radio. Enjoy!

Many thanks to SWLing Post contributors Dennis Dura, Mike Terry and the International Radio Report for the following tips:


A trip around the world through local radio stations (The Guardian)

Streaming means we can tune into breakfast shows, travel bulletins and local gossip on every continent – and revel in radio’s ability to create a sense of community

I’d missed the joke about the three-legged chicken. It was causing a stir.

“That one about the chicken with three legs you told yesterday,” said a presenter on Ireland’s Midwest Radio’s afternoon show, “apparently Ronald Reagan told it first.”

“Did he, now?” the co-host replied.

“Yes. You stole a joke from Ronald Reagan.”

Jeez, I’m going as red as a tomato here.”

The conjunction of tripedal fowl, the 40th president of the United States and two men in a studio in Ballyhaunis, County Mayo, will never make a list of great radio moments but it was enough to coax me from between my four walls, even if it was via the imagination.

Radio has never been more popular: it’s seen off challenges, from television to the internet, to become stronger than ever. In 2017, according to industry ratings body Rajar, nine out of 10 people in the UK listened to the radio every week. Perhaps it succeeds because we have to conjure up our own pictures of events and places beyond our immediate surroundings. As a bored, lonely boy growing up in an anonymous south-east London suburb, I’d spend most evenings in my bedroom jamming a coathanger into the back of an old radio and scanning the airwaves, awestruck by the range of languages and music bursting out of the night through skirling static; each voice sending tantalising reassurance of a world beyond the dispiriting confines of my own.[]

Coronavirus: BBC ‘needs to make £125m savings this year’ (BBC News)

The BBC has said it will have to “think hard about every pound” it spends on new programmes because of financial pressures during the current lockdown.

Delays to a new licence fee regime for people over 75 and problems collecting fees are among the challenges cited.

Staff have been told the BBC will have to find £125m savings this year.

Senior leaders will take a pay freeze until August 2021 and all non-essential recruitment will be put on hold as part of the cost-cutting measures.

Staff will also be invited to work part time or take unpaid leave if they find it “helpful” during the lockdown.

In a briefing on Wednesday, director general Tony Hall said other reasons behind the cash shortfall were a delay to a plan to cut 450 jobs, and uncertainty around commercial revenues.

Other broadcasters have been badly hit during the crisis, with ITV last month cutting its programme budget by £100m and Channel 4 cutting £150m from its programming.

On Wednesday, Channel 4’s director of programmes Ian Katz said the broadcaster would have to cut back on drama and produce “lower tariff” shows.[]

The Irish Legacy of Ronan O’Rahilly and Radio Caroline (The Irish Broadcasting Hall of Fame)

With the passing of Ronan O’Rahilly in April 2020, a colossus of radio broadcasting has left a legacy that will stand the test of time and has made a massive impression on radio broadcasting in Ireland. While his beloved Radio Caroline was a familiar sight off the South East of England, its influence on both radio and music in 1960’s Britain cannot be underestimated. It forced the British Government to enact new legislation outlawing the almost a dozen pirate radio ships that blasted pop music into Britain and it forced the BBC to reorganise and compete with the opening of a dedicated pop channel in 1967, BBC Radio One. In the month when Ronan passed onto the afterlife, both BBC Radio One and Radio Caroline still broadcast today. But while Caroline’s history focusses mainly on its influence on Britain, Ireland has played a key role in that colourful history and this is that story.

At the helm of Radio Caroline was Ronan O’Rahilly. He was born in Clondalkin, Dublin in 1940, his father Aodogan was a well-known and wealthy businessman, regarded as an influential ally of Eamon DeValera, while his grandfather Michael O’Rahilly was better known as The O’Rahilly, sacrificed his life during the 1916 Easter Rising having been shot dead while leading a charge on a British position at the end of Moore Street.[]

During the COVID-19 Pandemic, ARISS to Begin Experimental Demonstrations of School Contacts using a Multipoint Telebridge Amateur Radio Approach (ARISS)

ARISS News Release                                                                             No. 20-03          
April 28, 2020 —Amateur Radio on the International Space Station (ARISS) is pleased to announce the first use of a concept called Multipoint Telebridge Contact via Amateur Radio, allowing school contacts for Stay-At-Home students and simultaneous reception by families, school faculty and the public.

During the last several weeks, efforts to contain the spread of the COVID-19 virus have resulted in massive school closures worldwide. In addition, the Stay-At-Home policies invoked by authorities, initially shut down opportunities for ARISS school contacts for the near future.

To circumvent these challenges and keep students and the public safe, ARISS is introducing the Multipoint Telebridge Contact via Amateur Radio concept. First operation of this experimental system will occur during a contact scheduled with a group of Northern Virginia Students located in Woodbridge, VA on Thursday, April 30 at 13:35 UTC (9:35 EDT). During this event, an ARISS telebridge radio ground station will link to the astronaut on the International Space Station (ISS) ham radio station and each Stay-At-Home student and their teacher will be individually linked to the telebridge station. Under the teacher’s direction, each student, from their home, takes a turn asking their question of the astronaut.

Quoting ARISS Chair Frank Bauer, “This approach is a huge pivot for ARISS, but we feel it is a great strategic move for ARISS. In these times of isolation due to the virus, these ARISS connections provide a fantastic psychological boost to students, families, educators and the public. And they continue our long-standing efforts to inspire, engage and educate student in STEAM subjects and encourage them to pursue STEAM careers.”

ARISS is inviting the public to view a live stream of the upcoming contact at its new ARISS YouTube Channel: https://youtu.be/Cu8I9ose4Vo.

During the contact, participants will ask as many of the following questions as time allows:
1. What does the sun look like from outer space?
2. How comfortable is it to sleep in space?
3. What is one thing you want to eat when you get back to earth?
4. I’ve heard that stars are red, yellow and blue. Can you see those colors in space when you look at the stars?
5. Besides your family, what do you miss most while being in space?
6. What are your thoughts on our Covid-19 situation right now? Does the Earth look differently over the last 3 months now that many people are inside and not creating pollution?
7. How often do you get to go out of the ISS? Have you been on any space walks?
8. Who makes the rocket that takes you to the ISS?
9. What does it feel like to float all the time?
10. Do you use flashlights on space walks?
11. How do you exercise in space?
12. How do you get out for space walks safely without the air from the ISS coming out into space? How does it feel to walk in space?
13. What do you wear in the space station?
14. How did it feel when you first got to space?
15. How is space different from Earth?
16. What do you study in school to become an astronaut?
17. What do you like the most about being in space?
18. Were you nervous when you launched into space?
19. How do you communicate with loved ones while you are in space?


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Radio Fun: Monitoring ISS Astronaut David Saint-Jacques as he answers student questions

My daughter hold the Kenwood TH-F6 HT while we listen to the ISS contact.

Many thanks to my good buddy Eric (WD8RIF) for reminding me about a scheduled ARISS (Amateur Radio on the International Space Station) contact between Canadian astronaut David Saint-Jacques and Faith Christian Academy in Orlando, FL, USA.

Astronaut David Saint-Jacques (Source: Canadian Space Agency)

Living in the mountains, I miss a lot of low angle ISS passes due to ridge lines blocking my line of sight. This time, though, the pass was high and mostly to my open south which meant it was one of the longest ARISS contacts I’m monitored.

My daughters drop everything to monitor radio or visual ISS passes–this February 14th pass was no exception.

In fact, I’m sure a lot of their enthusiasm about studying for their ham radio licenses stems from these ARISS events.

Of course, it doesn’t take an amateur radio license to monitor an ISS VHF transmission. I’ve used everything from handheld scanners to handheld ham radio transceivers. Click here to read a post with a short tutorial on monitoring ARISS contacts.

My daughters helped me make short videos of David Saint-Jacques’ replies (of course, we can’t hear the FL school’s transmissions). Below, I’ve matched the school’s questions with his answers:

Question regarding superstitions, traditions and rituals:

Click here to view on YouTube.

“Can you see any constellations while on the ISS and do you have a favorite one?”

Click here to view on YouTube.

“Have you ever experienced a major malfunction on the ISS?”

Click here to view on YouTube.

“Does everything in your body work the same in a microgravity environment, for instance, does your heart work harder to pump blood through the body?”

Click here to view on YouTube.

“Do your ears pop like they would when you fly in a plane?”

Click here to view on YouTube.

“Are you recognized as an astronaut on the streets?”

Click here to view on YouTube.

“Are you allowed to request certain things to be delivered by the cargo missions?”

Click here to view on YouTube.

“Describe the escape system on the ISS in case of an emergency.”

Click here to view on YouTube.

“How do you shave or cut your hair on the ISS without the hair floating away?”

Click here to view on YouTube.

“What experiment are you currently working on and is it going well?”

Click here to view on YouTube.

“What did you feel the first time you saw Earth from the ISS?”

Click here to view on YouTube.

Have you ever monitored an ARISS contact or grabbed one of the SSTV transmissions from the ISS?  Please comment!


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International Space Station SSTV Event Feb 15-17

(Source: Southgate ARC)

Space Station Slow Scan TV Event Feb 15-17

ARISS is planning another of their popular Slow Scan Television (SSTV) experiment events from the International Space Station on February 15-17

Transmissions on 145.800 MHz FM are scheduled to begin Friday, Feb. 15 at 08:45 UT and run through Sunday, Feb. 17 at 17:25 UT.

SSTV operations is a process by which images are sent from the International Space Station (ISS) via ham radio and received by ham operators, shortwave listeners and other radio enthusiasts on Earth, similar to pictures shared on cell phones using Twitter or Instagram.

When this event becomes active, SSTV images will be transmitted from the ISS at the frequency of 145.800 MHz using the SSTV mode of PD120 and can be received using ham radio equipment as simple as a 2 meter handheld radio or a common shortwave or scanner receiver the covers the 2 meter ham band. After connecting the audio output of the radio receiver to the audio input of a computer running free software such as MMSSTV, the SSTV images can be displayed.

Transmissions will consist of eight NASA On The Air (NOTA) images (see https://nasaontheair.
wordpress.com/
). In additional, four ARISS commemorative images will also be included.

Once received, Images can be posted and viewed by the public at
http://www.spaceflight
software.com/ARISS_SSTV/index.php

In addition, you can receive a special SSTV ARISS Award for posting your image. Once the event begins, see details at https://ariss.pzk.org.pl/sstv/

Please note that the event is dependent on other activities, schedules and crew responsibilities on the ISS and are subject to change at any time. Please check for news and the most current information on the ARISS Twitter feed @ARISS_status or the AMSAT Bulletin Board

The SSTV images will be transmitted in PD-120 on 145.800 MHz FM using the Kenwood TM-D710 transceiver located in the Russian ISS Service module.

Note the ISS transmissions use the 5 kHz deviation FM standard rather than the narrow 2.5 kHz used in Europe. If your transceiver has selectable FM filters try using the wider filter. Handheld transceivers generally have a single wide filter fitted as standard and you should get good results outdoors using just a 1/4 wave whip antenna.

ISS SSTV links for tracking and decoding Apps
https://amsat-uk.org/beginners/iss-sstv/

You can receive the SSTV transmissions by using an Online Radio (WebSDR) and the MMSSTV software:
• Listen to the ISS when it is in range of London with the SUWS WebSDR http://farnham-sdr.com/
• Listen to the ISS when it is over Russia with the R4UAB WebSDR http://websdr.r4uab.ru/

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ARISS / NOTA Slow Scan TV Event, February 8-10

(Source: Southgate ARC)

ARISS is planning another of their popular Slow Scan Television (SSTV) experiment events. Transmissions are scheduled to begin Friday, Feb. 8 at 18:25 UTC and run through Sunday, Feb. 10 at 18:30 UTC.

SSTV operations is a process by which images are sent from the International Space Station (ISS) via ham radio and received by ham operators, shortwave listeners and other radio enthusiasts on Earth, similar to pictures shared on cell phones using twitter or instagram.

When this event becomes active, SSTV images will be transmitted from the ISS at the frequency of 145.80 MHz using the SSTV mode of PD120 and can be received using ham radio equipment as simple as a 2 meter handheld radio or a common shortwave or scanner receiver the covers the 2 meter ham band. After connecting the audio output of the radio receiver to the audio input of a computer running free software such as MMSSTV, the SSTV images can be displayed.

Transmissions will consist of eight NASA On The Air (NOTA) images see 
https://nasaontheair
.wordpress.com/
 ,
In addition, four ARISS commemorative images will also be included.

Once received, Images can be posted and viewed by the public at http://www.spaceflightsoftware
.com/ARISS_SSTV/index.php
 .
In addition, you can receive a special SSTV ARISS Award for posting your image. Once the event begins, see details at https://ariss.pzk.org.pl/sstv/ .

Please note that the event is dependent on other activities, schedules and crew responsibilities on the ISS and are subject to change at any time.

Please check for news and the most current information on the AMSAT.org and ARISS.org websites, the AMSAT-BB@amsat.org, the ARISS facebook at Amateur Radio On The International Space Station (ARISS) and ARISS twitter @ARISS_status.

About ARISS

Amateur Radio on the International Space Station (ARISS) is a cooperative venture of international amateur radio societies and the space agencies that support the International Space Station (ISS). In the United States, sponsors are the Radio Amateur Satellite Corporation (AMSAT), the American Radio Relay League (ARRL), the Center for the Advancement of Science in space (CASIS) and National Aeronautics and Space Administration (NASA).

The primary goal of ARISS is to promote exploration of science, technology, engineering, and mathematics (STEM) topics by organizing scheduled contacts via amateur radio between crew members aboard the ISS and students in classrooms or public forms. Before and during these radio contacts, students, educators, parents, and communities learn about space, space technologies, and amateur radio. For more information, see www.ariss.org.

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Media Contact:

Dave Jordan, AA4KN

ARISS PR
aa4kn@amsat.org

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