November 2020 - AMSAT-BB - mailman.amsat.org

FM Birds?
by Brad Smith 25 Oct '21

25 Oct '21

Are there any plans to launch more FM satellites and if not, why not? FM birds seem to be much more popular than linear birds. Brad KC9UQR

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AISat1?
by Steve Kristoff 05 Jun '21

05 Jun '21

What happened to AISat? We have no more functioning APRS satellites? Steve AI9IN

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cube sat model
by Bob- W7LRD 07 May '21

07 May '21

Hi All-Is there a cube sat model, mock up etc, available anywhere 73 Bob W7LRD

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Re: [amsat-bb] SatPC32 - need help with configuration of Doppler.SQX file
by Bill Dzurilla 02 Dec '20

02 Dec '20

I was just advised that, contrary to the RS-44 line in the JE9PEL file, it should be REV rather than NOR. If so, that would explain a lot. 73, Bill NZ5N On Monday, November 30, 2020, 02:10:53 PM EST, Bill Dzurilla <billdz.geo(a)yahoo.com> wrote: Hello, Does anyone have any tips for proper configuration of the Doppler.SQX file on SatPC32? I'm having a hard time getting it correct for RS-44. I started with the standard line from JE9PEL: RS-44 (DOSAAF-85),435640,145965,USB,LSB,NOR,0,0,SSB When I heard the sat, I started clicking the Uplink Calibration buttons in the CAT Control window until my voice sounded natural. It was pretty far off, something like 8800hz. To save, I clicked on Change/Store Data File and then clicked RX/TX Freq. Data. I thought this was all I needed to do, but on the next pass my TX and RX were again out of sync. On every pass, I need to start over, and each time the uplink frequency is several thousand hertz off. My current line is: RS-44 (DOSAAF-85),435631.85,145970.86,USB,LSB,NOR,0,0,SSB What am I doing wrong? Thanks and 73, Bill NZ5N

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9k6 FSK packet with FT-991A (Mirek Kasal)
by Miroslav Kasal 30 Nov '20

30 Nov '20

Hi all, Please, has anyone experience with 9k6 FSK packet operation with FT-991A transceiver? Let me know your practice, please. Thank you in advance. Mirek OK2AQ -- Tento e-mail byl zkontrolován na viry programem AVG. http://www.avg.cz

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R: RE: R: Re: ISS SSTV frequency
by ik5jrz＠tin.it 30 Nov '20

30 Nov '20

Thanks Frank, saying to move to 145.825 in fact I forgot all the other problems but it is certainly a local problem in some areas. So our only hope is that these repeaters will not be renewed or converted to digital. Thanks anyway for the reply. 73 Carlo IK5JRZ. ----Messaggio originale---- Da: ka3hdo(a)gmail.com Data: 30-nov-2020 22.29 A: <ik5jrz(a)tin.it>, <fabrizio.carrai(a)gmail.com>, <amsat-bb(a)amsat.org> Ogg: RE: [amsat-bb] R: Re: ISS SSTV frequency All, We CANNOT move the ARISS SSTV frequency to 145.825. This is being used for other satellites employing APRS and we would interfere with their operation. Prior to their being an ARISS station on ISS, we conducted an extensive, international effort to ensure ARISS had a clear downlink on 2 meters. We worked with all IARU regions and concluded that the best world-wide downlink frequency for Human would be 145.80 MHz. At the time (1997) the United States had terrestrial APRS on 145.79. In the USA we worked with the APRS community in a collaborative fashion to QSY APRS terrestrial from 145.79 to 144.39 (where it is today). This was a HUGE effort and required many digipeaters, several on snow covered mountains, to be modified or replaced. Donations were collected. And AMSAT-NA and TAPR worked together to make it happen. Again, please note that IARU region 1 agreed with this downlink frequency for human spaceflight many years ago so we could have one common downlink. I am very sorry you are experiencing this. I think this will take local coordination to resolve this. Similar to what we did for terrestrial APRS. Trying to move ARISS around in the very small OSCAR 2 meter sub-band (145.8-146) is virtually unworkable, given the many 2 meter satellites that are employing this band. I hope this helps explain things from an ARISS perspective. Back in the day, I was given the unenviable task of working these frequency coordination issues for human spaceflight. To be clear, we are much better today than some of the issues we were experiencing in the past. And changing things around will probably make it worse for ARISS and other users in the satellite community. 73, Frank Bauer, KA3HDO Chair, ARISS-International -----Original Message----- From: ik5jrz(a)tin.it <ik5jrz(a)tin.it> Sent: Monday, November 30, 2020 2:36 PM To: fabrizio.carrai(a)gmail.com; amsat-bb(a)amsat.org Subject: [amsat-bb] R: Re: ISS SSTV frequency Thanks for answer, The repeater is R7a (Monte Secchieta), it's not only an Italian problem unfortunately, I have read many complaints in other areas as well. I don't question the correct spacing between frequencies, but I'm afraid it's only on actual paper. I don't want to doubt that the repeater is working correctly, but I think that if the ISS transmitted at 145.825, since when it transmits in SSTV APRS is disabled, the problem would be solved. The video demonstrates the proximity between the frequencies even if I admit to being in the high area and to receive the repeater very well. https://www.youtube.com/watch?v=nsoSjh54a3A&amp;ab_channel=IK5JRZThanks again. Carlo IK5JRZ.

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Giving Tuesday
by ka3hdo＠gmail.com 30 Nov '20

30 Nov '20

All, I would like to remind everyone that tomorrow is Giving Tuesday. If you feel that satellite development is important and you support the educational activities many of us do to promote STEM careers and the amateur radio hobby, then don't forget the teams that are making that happen! Whether it is a donation to GOLF: https://www.amsat.org/donations/amsat-golf-program-donations/ or to ARISS: https://www.ariss.org/donate.html, your donation is welcomed and appreciated. You would be surprised how each donation, little or big, come together allow these projects and programs to be realized. For those that plan to donate during tomorrow's Giving Tuesday, we all thank you in advance! 73, Frank Bauer, KA3HDO

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R: Re: ISS SSTV frequency
by ik5jrz＠tin.it 30 Nov '20

30 Nov '20

Thanks for answer, The repeater is R7a (Monte Secchieta), it's not only an Italian problem unfortunately, I have read many complaints in other areas as well. I don't question the correct spacing between frequencies, but I'm afraid it's only on actual paper. I don't want to doubt that the repeater is working correctly, but I think that if the ISS transmitted at 145.825, since when it transmits in SSTV APRS is disabled, the problem would be solved. The video demonstrates the proximity between the frequencies even if I admit to being in the high area and to receive the repeater very well. https://www.youtube.com/watch?v=nsoSjh54a3A&ab_channel=IK5JRZThanks again. Carlo IK5JRZ. ----Messaggio originale---- Da: amsat-bb(a)amsat.org Data: 30-nov-2020 12.51 A: "Pedro Converso"<pconver(a)gmail.com> Cc: "AMSAT BB"<amsat-bb(a)amsat.org> Ogg: Re: [amsat-bb] ISS SSTV frequency According to the band plan reported on the ARI web site, the space communication band is protected starting at 145.794 Mhz, i.e. 6 Khz below 145.800 Mhz. The R7a is indeed at 145.7875 Mhz with a bandwidth of 12 Khz there shouldn't be any interference (in theory). Have you checked which repeater is in your (our) zone ? Ciao Fabrizio IU5GEZ Il giorno dom 29 nov 2020 alle ore 23:11 Pedro Converso via AMSAT-BB < amsat-bb(a)amsat.org> ha scritto: > This situation doesn't happen in IARU R2, as 145.790-145.800 is a > protection segment. > > In IARU R1, there is no such a protection, suggest request change thru > your IARU Rep. > > > On 11/29/20, John Brier via AMSAT-BB <amsat-bb(a)amsat.org> wrote: > > What repeater are you referring to exactly? > > > > 73, John Brier KG4AKV > > > > On Sun, Nov 29, 2020, 16:51 ik5jrz--- via AMSAT-BB <amsat-bb(a)amsat.org> > > wrote: > > > >> Hello, > >> I am very interesting to know how many peoples in the world have my, and > >> not only mine..problem for receive ISS SSTV on 145.800. The problem is > >> the > >> repeater (7a) at 145.787.5 and ISS , for doppler naturally go down > >> 145.800 > >> and its impossible to receive well if someone talk on repeater. > >> Thanks for attention. > >> Carlo IK5JRZ. > >> _______________________________________________ > >> Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > >> to all interested persons worldwide without requiring membership. > >> Opinions > >> expressed > >> are solely those of the author, and do not reflect the official views of > >> AMSAT-NA. > >> Not an AMSAT-NA member? Join now to support the amateur satellite > >> program! > >> Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb > >> > > _______________________________________________ > > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > > to all interested persons worldwide without requiring membership. > Opinions > > expressed > > are solely those of the author, and do not reflect the official views of > > AMSAT-NA. > > Not an AMSAT-NA member? Join now to support the amateur satellite > program! > > Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb > > > _______________________________________________ > Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available > to all interested persons worldwide without requiring membership. Opinions > expressed > are solely those of the author, and do not reflect the official views of > AMSAT-NA. > Not an AMSAT-NA member? Join now to support the amateur satellite program! > Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb > -- *Fabrizio* _______________________________________________ Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb

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Upcoming ARISS Contact Schedule as of 2020-11-30 19:30 UTC
by aj9n＠aol.com 30 Nov '20

30 Nov '20

Upcoming ARISS Contact Schedule as of 2020-11-30 19:30 UTC Quick list of scheduled contacts and events: Amur State University, Blagoveshchensk, Russia, direct via TBD The ISS callsign is presently scheduled to be RSØISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled astronaut is Sergey Ryzhikov Contact is go for Thu 2020-12-03 08:45 UTC Scuola Secondaria di I grado “Anna Frank”, Pistoia, Italy, telebridge via IK1SLD The ISS callsign is presently scheduled to be OR4ISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled astronaut is Victor Glover KI5BKC Contact is go for: Fri 2020-12-04 12:25:22 UTC 50 deg Tecumseh High School Electronics and Amateur Radio, Tecumseh, OK, direct via K5THS The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled astronaut is Shannon Walker KD5DXB Contact is go for: Fri 2020-12-04 18:33:30 UTC 78 deg Kursk, Russia, direct via TBD (***) The ISS callsign is presently scheduled to be RSØISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled astronaut is Sergey Kud-Sverchkov Contact is go for 2020-12-09 11:45 UTC ************************************************************************************************************* The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The latest list of frequencies in use can be found at https://www.ariss.org/contact-the-iss.html ######################################################################################################################################## A multi-point telebridge contact means that each student will be on the telebridge from their own home. **************************************************************************************************************************************** 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. Watch for future COVID-19 related announcements at https://www.ariss.org/ The following schools have now been postponed or cancelled due to COVID-19: Postponed: No new schools Cancelled: No new schools **************************************************************************************************************************************** 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 2020-11-30 19:30 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 2020-10-14 18:00 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 Amateur Radio on the International Space Station (ARISS) Program is seeking formal and informal education institutions and organizations, individually or working together, to host an Amateur Radio contact with a crew member on board the ISS. ARISS anticipates that the contact would be held between July 1, 2021 and December 30, 2021. Crew scheduling and ISS orbits will determine the exact contact dates. To maximize these radio contact opportunities, ARISS is looking for organizations that will draw large numbers of participants and integrate the contact into a well-developed education plan. The deadline to submit a proposal is November 24th, 2020. Proposal information and more details such as expectations, proposal guidelines and the proposal form can be found at www.ariss.org. An ARISS Introductory Webinar session will be held on October 8, 2020 at 8PM ET. The Eventbrite link to sign up is: https://ariss-proposal-webinar-fall-2020.eventbrite.com The Opportunity Crew members aboard the International Space Station will participate in scheduled Amateur Radio contacts. These radio contacts are approximately 10 minutes in length and allow students to interact with the astronauts through a question-and-answer session. An ARISS contact is a voice-only communication opportunity via Amateur Radio between astronauts and cosmonauts aboard the space station and classrooms and communities. ARISS contacts afford education audiences the opportunity to learn firsthand from astronauts what it is like to live and work in space and to learn about space research conducted on the ISS. Students also will have an opportunity to learn about satellite communication, wireless technology, and radio science. Because of the nature of human spaceflight and the complexity of scheduling activities aboard the ISS, organizations must demonstrate flexibility to accommodate changes in dates and times of the radio contact. Amateur Radio organizations around the world with the support of NASA and space agencies in Russia, Canada, Japan and Europe present educational organizations with this opportunity. The ham radio organizations’ volunteer efforts provide the equipment and operational support to enable communication between crew on the ISS and students around the world using Amateur Radio. Please direct any questions to ariss.us.education(a)gmail.com. 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. 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 unless otherwise noted. ******************************************************************************* 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 137 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 1403. Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1336. Each contact may have multiple schools sharing the same time slot. Total number of ARISS supported terrestrial contacts is 48. 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. 63 now on orbit Kate Rubins KG5FYJ Sergey Ryzhikov Sergey Kud-Sverchkov SpaceX-Crew 1 now on orbit Victor Glover KI5BKC Mike Hopkins KF5LJG Soichi Noguchi KD5TVP Shannon Walker KD5DXB **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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ISS SSTV frequency
by ik5jrz＠tin.it 30 Nov '20

30 Nov '20

Hello, I am very interesting to know how many peoples in the world have my, and not only mine..problem for receive ISS SSTV on 145.800. The problem is the repeater (7a) at 145.787.5 and ISS , for doppler naturally go down 145.800 and its impossible to receive well if someone talk on repeater. Thanks for attention. Carlo IK5JRZ.

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