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Re: [amsat-bb] Repeater interference on AO-92
by Eric Williams 28 Apr '20

28 Apr '20

Yes, I am also listening to the uplink freq. Next pass is in about 1 hour. 73 Eric KV1J (I use digest mode for this list so pardon the not including the string of messages) -----Original Message----- From: Eric Williams [mailto:[email protected]] Sent: Tuesday, April 28, 2020 10:51 AM To: 'amsat-bb(a)amsat.org' <amsat-bb(a)amsat.org> Subject: RE: Repeater interference on AO-92 I am in the area of a suspected repeater. Also in the area of the towns mentioned to could be that machine. I'll watch for the next AO-92 pass and announce my call of the repeater a few times and listen to AO-92. So if you hear "KV1J" it is me testing for the interference. I have not looked at the pass schedule yet but I can try a couple passes. 73, Eric KV1J FN42

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Repeater interference on AO-92
by Roy Dean 28 Apr '20

28 Apr '20

> > Yes, I am also listening to the uplink freq. Next pass is in about 1 hour. > 73 Eric KV1J Keep in mind that somebody may be commanding it into picture mode. --Roy K3RLD

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Re: [amsat-bb] Repeater interference on AO-92
by Eric Williams 28 Apr '20

28 Apr '20

I am in the area of a suspected repeater. Also in the area of the towns mentioned to could be that machine. I'll watch for the next AO-92 pass and announce my call of the repeater a few times and listen to AO-92. So if you hear "KV1J" it is me testing for the interference. I have not looked at the pass schedule yet but I can try a couple passes. 73, Eric KV1J FN42

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Re: [amsat-bb] Repeater interference on AO-92
by Burns Fisher 28 Apr '20

28 Apr '20

>Maybe someone here can better explain how the Fox tone squelch >works, for example how long it stays on after hearing a tone. The Fox FM satellites (now AO-91 and AO-92) have their receivers on all the time and listen for the 67Hz tone. If they do not hear it they turn on the Tx every 2 minutes for about 10 seconds for a couple frames of telemetry and a voice ID (without the repeater enabled). If they do hear a tone, they turn on the repeater for 1 minute (extended each time they hear the tone). The tone detector is not too sharp so it might trigger on 69.3 or 71.9 Hz as well. It does require that the tone be heard for a bit of time (I don't remember exactly how long--in the hundreds of ms, I think), so it is not too likely to be triggered by random noise that has some components in that frequency range. Of course it is not impossible. Unlike many terrestrial repeaters, the Fox repeaters do not transmit a tone squelch on the downlink. Those frequencies are right where we stick the telemetry. I hope that is helpful... Burns WB1FJ AMSAT Fox Flight Software > >

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Re: [amsat-bb] Repeater interference on AO-92
by tjschuessler＠verizon.net 28 Apr '20

28 Apr '20

Do be aware that the repeater that might be causing the interference may actually not be running 67Hz tone. The Fox satellites do need to hear 67 Hz to wake the transponder, but after that it is a bent pipe. Thus, as long as it got woke up, it would pass whatever FM it hears. Like the apparent DMR interference we dealt with several months ago, it's folks who think that it is "Clear air" down there and do their own thing. Hopefully someone with a scanner can locate and politely pass along some education. Tom Schuessler, N5HYP EM12ms _______ Date: Mon, 27 Apr 2020 08:55:51 -0400 From: Stephen DeVience <sjdevience(a)gmail.com <mailto:[email protected]> > To: amsat-bb(a)amsat.org <mailto:[email protected]> Subject: [amsat-bb] Repeater interference on AO-92 Message-ID: <CAMPfQQD4qBy7HOEC29rqjwVsWf7f=yoPfQY4gjibqqHtmPsajQ(a)mail.gmail.com <mailto:CAMPfQQD4qBy7HOEC29rqjwVsWf7f=yoPfQY4gjibqqHtmPsajQ@mail.gmail.com> > Content-Type: text/plain; charset="UTF-8" Following up on the previous discussion, I too heard a ragchew on AO-92 during the 4/26 15:20 pass, and others heard it on the 4/27 02:00 pass. I checked for repeaters in New England with a 67 Hz CTCSS tone, and W1RJC in New Bedford comes up. Its output at 145.110 MHz also uses a 67 Hz tone and would have a third harmonic at 435.330 MHz, just about right for AO-92 considering doppler. It is also consistent with hearing a NH callsign and discussions about sea vessels :) -Stephen, N8URE

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Repeater interference on AO-92
by Stephen DeVience 28 Apr '20

28 Apr '20

Following up on the previous discussion, I too heard a ragchew on AO-92 during the 4/26 15:20 pass, and others heard it on the 4/27 02:00 pass. I checked for repeaters in New England with a 67 Hz CTCSS tone, and W1RJC in New Bedford comes up. Its output at 145.110 MHz also uses a 67 Hz tone and would have a third harmonic at 435.330 MHz, just about right for AO-92 considering doppler. It is also consistent with hearing a NH callsign and discussions about sea vessels :) -Stephen, N8URE

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Upcoming ARISS contact for Northern Virginia Schools Group - Woodbridge, VA
by David Jordan 27 Apr '20

27 Apr '20

AnInternational Space Station school contact has been planned withparticipants at NorthernVirginia Schools Group, Woodbridge VA on30 April. The event is scheduled to begin at approximately 13:35 UTC.It is recommended that you start listening approximately 10 minutesbefore this time. The duration of the contact is approximately 9minutes and 30 seconds. The contact will be a Multi-Point Telebridgebetween NA1SS and AB1OC. Amulti-point telebridge contact means that each student will be on thetelebridge from their own home. Thecontact should be audible over the state of New Hampshire andadjacent areas. U.S. Interested parties are invited to listen in onthe 145.80 MHz downlink. The contact is expected to be conducted inEnglish. Watchfor live stream at: https://youtu.be/Cu8I9ose4Vo Story: Weare students from Northern Virginia. We are ages 5-10 years old andwe are in K-5th grade, in Woodbridge VA, just outside of DC. Ourschool year was ended on March 13th and we have been home learningmany things using distance learning methods. We have been learninghow to get along in small spaces with little contact with the rest ofour community. We are learning quickly how it must feel to be on theISS! Participantswill 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 thosecolors 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 theEarth look differently over the last 3 monthsnow 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 anyspace 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 theISS coming out into space? How does it feelto 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? PLEASECHECK THE FOLLOWING FOR MORE INFORMATION ON ARISS UPDATES: VisitARISS on Facebook. We can be found at Amateur Radio on theInternational Space Station (ARISS). Toreceive our Twitter updates, follow @ARISS_status Nextplanned event(s): TBD AboutARISS AmateurRadio on the International Space Station (ARISS) is a cooperativeventure of international amateur radio societies and the spaceagencies that support the International Space Station (ISS). In theUnited States, sponsors are the Radio Amateur Satellite Corporation(AMSAT), the American Radio Relay League (ARRL), the ISS National Laband National Aeronautics and Space Administration (NASA). The primarygoal of ARISS is to promote exploration of science, technology,engineering, and mathematics (STEM) topics by organizing scheduledcontacts via amateur radio between crew members aboard the ISS andstudents in classrooms or public forms. Before and during these radiocontacts, students, educators, parents, and communities learn aboutspace, space technologies, and amateur radio. For more information,see www.ariss.org. Thankyou & 73, David – AA4KN

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AO-92 QRM
by Steve Kristoff 27 Apr '20

27 Apr '20

I heard a couple of folks call me and I tried to answer but the deliberate QRM on AO-92 may have prevented you from hearing me. We'll just keep trying until the annoying person gets tired and moves on. I did get W4DTA in the log. Steve AI9IN Em79ji Oldenburg IN

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K4KDR featured on new Scott Manley Video
by Roy Dean 27 Apr '20

27 Apr '20

Scott (Chapman) is featured in Scott Manley's new video about the Iranian Noor satellite. https://youtu.be/SPTz7Ig9RQE Nice work, K4KDR! --Roy K3RLD

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Upcoming ARISS Contact Schedule as of 2020-04-27 16:00 UTC
by aj9n＠aol.com 27 Apr '20

27 Apr '20

Upcoming ARISS Contact Schedule as of 2020-04-27 16:00 UTC Quick list of scheduled contacts and events: Northern Virginia Schools Group, Woodbridge VA, Multi-point telebridge via AB1OC The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Chris Cassidy KF5KDR Contact is go for: Thu 2020-04-30 13:35:00 UTC 62 deg Watch for live stream at: https://youtu.be/Cu8I9ose4Vo (***) A multi-point telebridge contact means that each student will be on the telebridge from their own home. ************************************************* Looking for some stay at home activities related to science and for when you are not playing on your radio? Check out these links: >From ARISS Vice Chair Oliver Amend DG6BCE: ESA Astronauts to offer inspiration during isolation in #SpaceConnectsUs https://www.esa.int/Newsroom/Astronauts_to_offer_inspiration_during_isolati… Celestron, the telescope, microscope, and sports optics folks, now has something called #STEMINYOURBACKYARD that you can find on Instagram, Facebook, or Twitter. By the way, I don't work for Celestron or have any business dealings with them and this is just something I saw. Apparently there are 10 free STEM activities covering Astronomy, Nature and Wildlife, and The Microscopic World. Check out: https://www.celestron.com/blogs/news/discover-stem-in-your-backyard NASA has a STEM page with fun activities to do at home. Check out https://www.nasa.gov/stem ************************************************* ARISS is very aware of the impact that COVID-19 is having on schools and the public in general. As such, we may have last minute cancellations or postponements of school contacts. As always, I will try to provide everyone with near-real-time updates. The following schools have now been postponed or cancelled due to COVID-19: Postponed: No additional schools (***) Cancelled: No additional schools (***) The ARISS webpage is at https://www.ariss.org/ Watch for future COVID-19 related announcements here also. Note that there are links to other ARISS websites from this site. The main page for Applying to Host a Scheduled Contact may be found at https://www.ariss.org/apply-to-host-an-ariss-contact.html ARISS Contact Applications (United States) Note, all times are approximate. It is recommended that you do your own orbital prediction or start listening about 10 minutes before the listed time. All dates and times listed follow International Standard ISO 8601 date and time format YYYY-MM-DD HH:MM:SS The complete schedule page has been updated as of 2020-04-27 16:00 UTC. (***) Here you will find a listing of all scheduled school contacts, and questions, other ISS related websites, IRLP and Echolink websites, and instructions for any contact that may be streamed live. https://www.amsat.org/amsat/ariss/news/arissnews.rtf https://www.amsat.org/amsat/ariss/news/arissnews.txt The successful school list has been updated as of 2020-03-21 00:00 UTC. https://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf The ARISS webpage is at https://www.ariss.org/ Note that there are links to other ARISS websites from this site. The main page for Applying to Host a Scheduled Contact may be found at https://www.ariss.org/apply-to-host-an-ariss-contact.html ARISS Contact Applications (United States) The ARISS webpage is at https://www.ariss.org/ Note that there are links to other ARISS websites from this site. Message to US Educators ARISS Contact Applications (United States) The Proposal Window of February 1, 2020 to March 31, 2020 has now closed. For future proposal information and more details such as expectations, proposal guidelines and proposal form, and dates and times of Information Webinars, go to www.ariss.org. Please direct any questions to ariss.us.education(a)gmail.com. 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 ISS National Lab and National Aeronautics and Space Administration (NASA). The primary goal of ARISS is to promote exploration of science, technology, engineering, and mathematics (STEAM) 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. ******************************************************************************** ARISS Contact Applications (Europe, Africa and the Middle East) Schools and Youth organizations in Europe, Africa and the Middle East interested in setting up an ARISS radio contact with an astronaut on board the International Space Station are invited to submit an application from September to October and from February to April. Please refer to details and the application form at www.ariss-eu.org/school-contacts. Applications should be addressed by email to: school.selection.manager(a)ariss-eu.org ARISS Contact Applications (Canada, Central and South America, Asia and Australia and Russia) Organizations outside the United States can apply for an ARISS contact by filling out an application. Please direct questions to the appropriate regional representative listed below. If your country is not specifically listed, send your questions to the nearest ARISS Region listed. If you are unsure which address to use, please send your question to the ARISS-Canada representative; they will forward your question to the appropriate coordinator. For the application, go to: https://www.ariss.org/ariss-application.html. ARISS-Canada and the Americas, except USA: Steve McFarlane, VE3TBD email to: ve3tbd(a)gmail.com ARISS-Japan, Asia, Pacific and Australia: Satoshi Yasuda, 7M3TJZ email to: ariss(a)iaru-r3.org, Japan Amateur Radio League (JARL) https://www.jarl.org/ ARISS-Russia: Soyuz Radioljubitelei Rossii (SRR) https://srr.ru/ ****************************************************************************** ARISS is always glad to receive listener reports for the above contacts. ARISS thanks everyone in advance for their assistance. Feel free to send your reports to aj9n(a)amsat.org or aj9n(a)aol.com. Listen for the ISS on the downlink of 145.8Ø MHz. ******************************************************************************* All ARISS contacts are made via the Kenwood radio unless otherwise noted. ******************************************************************************* Several of you have sent me emails asking about the RAC ARISS website and not being able to get in. That has now been changed to https://www.ariss.org/ Note that there are links to other ARISS websites from this site. **************************************************************************** Looking for something new to do? How about receiving DATV from the ISS? Please note that the HamTV system has been brought back to earth for troubleshooting. Please monitor ARISS-EU or ARISS-ON for the very latest news on the troubleshooting efforts. If interested, then please go to the ARISS-EU website for complete details. Look for the buttons indicating Ham Video. http://www.ariss-eu.org/ If you need some assistance, ARISS mentor Kerry N6IZW, might be able to provide some insight. Contact Kerry at kbanke(a)sbcglobal.net The HamTV webpage: https://www.amsat-on.be/hamtv-summary/ **************************************************************************** ARISS congratulations the following mentors who have now mentored over 100 schools: Francesco IKØWGF with 140 Satoshi 7M3TJZ with 138 Sergey RV3DR with 133 Gaston ON4WF with 123 **************************************************************************** The webpages listed below were all reviewed for accuracy. Out of date webpages were removed, and new ones have been added. If there are additional ARISS websites I need to know about, please let me know. Total number of ARISS ISS to earth school events is 1387. Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1320. Each contact may have multiple schools sharing the same time slot. Total number of ARISS supported terrestrial contacts is 48. A complete year by year breakdown of the contacts may be found in the file. https://www.amsat.org/amsat/ariss/news/arissnews.rtf Please feel free to contact me if more detailed statistics are needed. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ The following US states and entities have never had an ARISS contact: South Dakota, Wyoming, American Samoa, Guam, Northern Marianas Islands, and the Virgin Islands. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ QSL information may be found at: https://www.ariss.org/qsl-cards.html ISS callsigns: DPØISS, IRØISS, NA1SS, OR4ISS, RSØISS **************************************************************************** Frequency chart for packet, voice, and crossband repeater modes showing Doppler correction as of 2005-07-29 04:00 UTC https://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correcti… Check out the Zoho reports of the ARISS contacts https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415 **************************************************************************** Exp. 62 now on orbit Welcome aboard! Chris Cassidy KF5KDR Anatoli Ivanishin Ivan Vagner **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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