AMSAT-BB November 2017

149 participants
248 discussions

ISS active 31/oct/2017 on voice over Cuba?

by Pavel Milanes

Hi to all. A group of Cuban ham are excited about listening what he thinks was a ISS pass and locals are asking to me to write an article for our national web site; the news spread on 2m local repeater during the pass and a few hams managed to listen a few seconds after the LOS, that rise a lot of comments and interest... The pass was on October 31 around 1 to 2 pm in CO land (CDT) on 145.800, does any has any details of that? or better a recording of the pass? My pass predictions shows a good pass over Cuba but later on that day, not at this time... I was on a work meeting and don't heard it. Thanks in advance... -- 73 CO7WT, Pavel.

5 years

Upcoming ARISS contact with Liceo Scientifico 'Francesco Cecioni", Livorno, Italy and Liceo Artistico Melotti, Lomazzo, Italy

by n4csitwo＠bellsouth.net

An International Space Station school contact has been planned with participants at Liceo Scientifico 'Francesco Cecioni", Livorno, Italy and Liceo Artistico Melotti, Lomazzo, Italy on 3 Nov. The event is scheduled to begin at approximately 09:27 UTC. The duration of the contact is approximately 9 minutes and 30 seconds. The contact will be direct between IR0ISS and IQ5LI. The contact should be audible over Italy and adjacent areas. Interested parties are invited to listen in on the 145.80 MHz downlink. The contact is expected to be conducted in Italian. The liceo scientifico "Francesco Cecioni" in Livorno is a high school with about 1200 students. The school was born in 1972 as a subsidiary but in 1974 already got its own identity for the experimental and innovative methods introduced as response to the demanding instruction innovation. Since 2010 the school has four specializations: scientific, linguistic, artistic and humanistic; the half of the students follow the scientific specialization. From the '80s, Liceo Cecioni sent its representatives to the final rounds of the national competition in math and physics. At present, astrophysics is the topic of the "Astrolab" program, reserved for the best students of the school and organized in collaboration with a network that includes: TNG at Las Palmas (Canary), Pisa and Pavia University, Arcetri Observatory (Florence) and S.Marcello Pistoiese Observatory (Pistoia). The deep involvement in the "Zero Robotics" competition has increased the interest of the students in the space research. Liceo Artistico "Melotti" in Lomazzo (Como) is arts high school addresses the study of aesthetic phenomena and artistic practice. It promotes the acquisition of specific methods of research and artistic production and the competence of related languages and techniques. It provides students with the tools necessary to know the artistic heritage in its historical and cultural context and to fully appreciate its presence and value in today's society. It helps students to deepen and develop their knowledge and competences and to mature the skills necessary to give expression to their creativity and design skills in the field of arts. (Age 14-18) Participants will ask as many of the following questions as time allows: 1. Come 'è la percezione del tempo lassù? 2. Dopo tutto ciò che hai visto c'è ancora qualcosa che può impressionarti? 3. Cosa ti piace di più della vita nello spazio a gravità zero? 4. Hai mai avuto paura mentre ti trovavi nello Spazio? 5. Come gestisci o sfoghi le tue emozioni e tensioni sulla ISS? 6. Quanti anni hai studiato per diventare ciò che sei ora? 7. Ti sarebbe utile un sistema di realtà virtuale che simuli la vita sulla terra? 8. Qual è di preciso il tuo ruolo nella stazione orbitale? 9. Qual è il problema più difficile che hai incontrato durante la tua missione? 10. Quante volte sei stato nello Spazio? 11. Qual è il problema di convivenza più grosso a bordo della ISS? 12. Cosa provi quando ti rendi conto di essere lontano dalla Terra? 13. Cosa provi quando guardi fuori nello spazio? 14. Ti è mai capitato di vedere qualcosa di strano fuori nello Spazio? 15. Quando eri piccolo ti sarebbe piaciuto diventare astronauta? 16. Che significato ha per te essere un astronauta? 17. Come cambia il tuo umore quando sei nello spazio rispetto a quando sei a terra? 18. Puoi affermare di avere realizzato il tuo sogno e che è tutto ciò che hai sempre voluto? 19. Qual è la cosa che più ti spaventa riguardo alla tua missione? 20. Credi che un giorno la tecnologia potrà darci la possibilità di popolare altro pianeta? 21. E' fastidiosa la sensazione di "pesantezza" che hai al lancio? 22. Ti relazioni ogni giorno con la bellezza, la maestosità e la stranezza dello spazio; la tua concezione di questi termini è cambiata rispetto a quando eri sulla terra? 23. Hai la possibilità di personalizzare un tuo spazio sulla stazione spaziale? 24. Cos'e la prima cosa che pensi guardando la terra da lì? 25. Quale uso immagini per le sfere di Zero-Robotics? 26. Sei stato chiamato dall' ESA oppure hai mandato un curriculum? 27. La prima volta che sei stato nello spazio è stata la più memorabile? 28. Quanto è durata la preparazione a questo viaggio? 29. Quale cambiamento nel tuo fisico noti quando vivi a lungo nello spazio? 30. C'è mai stata qualche emergenza e se sì, come agite? 31. Qual è stata la "scintilla" che ha acceso la tua passione per lo spazio? 32. Che scopo hanno le tue missioni? 33. E' mai accaduto a qualcuno di prendersi un raffreddore o un'altra malattia a bordo della ISS? 34. Si riesce a vedere l'inquinamento prodotto dalla terra nello spazio? 35. Cosa accade quando uno starnutisce a bordo della ISS? 36. Le manca la sua famiglia? 37. Come gestireste una situazione di emergenza medica a bordo? 38. Prima di partire occorre una preparazione fisica e di che tipo? 39. Quali sono gli odori dominanti a bordo della stazione spaziale? 40. Che cosa ti affascina di più nello spazio? 1. What is the perception of the time on the ISS? 2. After all that you have seen, is there something that still impress you? 3. What do you like more in the life at zero gravity? 4. Have you ever had fear while in space? 5. How to you manage the emotions and the stress on the ISS? 6. How long did you study to become what you are today? 7. Would a virtual reality system simulating the life on earth useful to you? 8. What is your role on the ISS? 9. What has been the most difficult problem you had in this mission? 10 .How many time have you been in space? 11. What is the biggest cohabitation problem on board the ISS? 12. What do you feel when you realize to be far from earth? 13. What do you feel when you look out to the space? 14. Have you ever seen something strange in the space? 15. Did you image to become an astronaut when you were young? 16. What does it means for you to be an astronaut? 17. How does your mood change respect when you are on earth? 18. Can you assert that you realized your dream and that this is what you expected? 19. What is that mostly get you scared in your mission? 20. Do you think that the technology will allow us to live on another planet? 21. Was the extra weight sensation at the launch annoying? 22. You daily relate with the beauty, stateliness and oddity of the space: did these terms change since you were on earth? 23. Did you personalize your own space in the ISS? 24. What is the first thing that came to your mind when you look at the earth? 25. What use do you foresee for the Zero Robotics spheres? 26. Have you been contacted by ESA or did you send a curriculum? 27. Was the first time in space the most memorable? 28. How long was the training for this mission? 29. What are the body changes that you notice when you live in space? 30. Have you ever experienced a station emergency and how are you ready for it? 31. What was the spark that turned on your passion for the space? 32. What are the purposes of your missions? 33. Did anybody get ill when on board the ISS? 34. Can you see the pollution on earth from space? 35. What happens when you sneeze on the ISS? 36. Do you miss your family? 37. How would you manage a medical emergency on board? 38. What physical training do you need before to fly to space? 39. What are the strongest smells on the ISS? 40. What mostly fascinates you in the space? PLEASE CHECK THE FOLLOWING FOR MORE INFORMATION ON ARISS UPDATES: Visit ARISS on Facebook. We can be found at Amateur Radio on the International Space Station (ARISS). To receive our Twitter updates, follow @ARISS_status Next planned event(s): 1. Istituto di Istruzione Superiore "Leonardo Da Vinci", Lanusei, Italy, direct via ISØBWM The ISS callsign is presently scheduled to be OR4ISS The scheduled astronaut is Paolo Nespoli IZØJPA Contact is a go for: Sat 2017-11-04 10:12 UTC Watch for HamTV 2. South Florida Science Center and Aquarium, West Palm Beach, FL, direct via WS4FSC The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Paolo Nespoli IZØJPA Contact is a go for: Mon 2017-11-06 16:17 UTC 3. Liceo Statale "Ilaria Alpi", Rutigliano, Italy, I.I.S.S. "T.Fiore-C.Sylos", Terlizzi, Italy, and Liceo Scientifico "Valdemaro Vecchi", Trani, Italy telebridge via VK4KHZ The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Paolo Nespoli IZØJPA Contact is a go for 2017-11-11 11:16 UTC Watch for HamTV 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 informal education venues. With the help of experienced amateur radio volunteers, ISS crews speak directly with large audiences in a variety of public forums. Before and during these radio contacts, students, teachers, parents, and communities learn about space, space technologies, and amateur radio. For more information, see www.ariss.org, www.amsat.org, and www.arrl.org. Thank you & 73, David - AA4KN --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

5 years

Changes to sat reporter coming

by Andrew Rich

Hello Some enhancements are coming to satreporter There will be a new main table sorted by last heard to give you an idea of what was heard in time The uptime an availability has been very good I might setup a production and live machine to make interruptions seamless Let me know if any other satellites need to be added I can also do email alerts for satellites I want also to do a daily report of APRS satellites I have to rework the statistics Andy VK4TEC http://59.167.159.165 <http://59.167.159.165/>

5 years

Upcoming ARISS Contact Schedule as of 2017-11-01 08:00 UTC

by AJ9N＠aol.com

Upcoming ARISS Contact Schedule as of 2017-11-01 08:00 UTC Quick list of scheduled contacts and events: Primaria e Secondaria di primo grado Istituto comprensivo Via XVI settembre, Civitavecchia, Italy direct via IKØWGF The ISS callsign is presently scheduled to be IRØISS The scheduled astronaut is Paolo Nespoli IZØJPA Contact was successful: Mon 2017-10-30 11:20:34 UTC 65 deg (***) Watch for HamTV Asociación Civil Instituto Maria Montessori, San Cristóbel, Venezuela, direct via YY2CMR The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Joe Acaba KE5DAR Contact was successful: Tue 2017-10-31 18:23:28 UTC 35 deg This was the first ARISS contact for Venezuela. (***) Liceo Scientifico ‘Francesco Cecioni”, Livorno, Italy and Liceo Artistico Melotti, Lomazzo, Italy, direct via IQ5LI The ISS callsign is presently scheduled to be IRØISS The scheduled astronaut is Paolo Nespoli IZØJPA Contact is a go for: Fri 2017-11-03 09:27:26 UTC 87 deg Watch for HamTV Istituto di Istruzione Superiore “Leonardo Da Vinci”, Lanusei, Italy, direct via ISØBWM The ISS callsign is presently scheduled to be OR4ISS The scheduled astronaut is Paolo Nespoli IZØJPA Contact is a go for: Sat 2017-11-04 10:12:16 UTC 34 deg Watch for HamTV South Florida Science Center and Aquarium, West Palm Beach, FL, direct via WS4FSC The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Paolo Nespoli IZØJPA (***) Contact is a go for: Mon 2017-11-06 16:17:10 UTC 35 deg (***) Liceo Statale “Ilaria Alpi”, Rutigliano, Italy, I.I.S.S. “T.Fiore-C.Sylos” , Terlizzi, Italy, and Liceo Scientifico “Valdemaro Vecchi”, Trani, Italy telebridge via VK4KHZ (***) The ISS callsign is presently scheduled to be NA1SS (***) The scheduled astronaut is Paolo Nespoli IZØJPA Contact is a go for 2017-11-11 11:16:29 UTC 56 deg (***) Watch for HamTV **************************************************************************** ** International Space Station Astronauts are Calling CQ Students – ARISS-US program education proposal deadline is November 15, 2017 September 18, 2017: The Amateur Radio on the International Space Station (ARISS) program is seeking proposals from U.S. schools, museums, science centers and community youth organizations to host radio contacts with an orbiting crew member aboard the International Space Station (ISS) between July 1 and December 31, 2018. Each year, ARISS provides tens of thousands of students with oppor- tunities to learn about space technologies and space communications through the exploration of Amateur Radio. The program provides learning opportunities by connecting students to astronauts aboard the International Space Station (ISS) through a partnership between NASA, the American Radio Relay League, the Radio Amateur Satellite Corporation and other Amateur Radio organizations and worldwide space agencies. The program’s goal is to inspire students worldwide, to pursue interests and careers in science, technology, engineering and mathematics (STEM) through Amateur Radio. Educators overwhelmingly report that student participation in the ARISS program inspires an interest in STEM subjects and in STEM careers. Ninety-two percent of educators who have participated in the program have indicated that ARISS provided ideas for encourag- ing student exploration, discussion, and participation, and 78 percent said that ARISS was effective in stimulating student interest in STEM. ARISS is looking for organizations that will draw large numbers of participants and integrate the contact into a well-developed education plan. Students can learn about satellite communications, wireless technology, science research conducted on the space station, what it is like to work in space, radio science, and any related STEM subject. Students learn to use Amateur Radio to talk directly to an astronaut and ask their STEM-related questions. ARISS will help educational organizations locate Amateur Radio groups who can assist with equipment for this once-in-a-lifetime opportunity for students. The proposal deadline for 2018 contacts is November 15, 2017. The ARISS website has additional details on expectations, proposal guidelines, and the proposal form. See: http://www.ariss.org/hosting-an-ariss-contact-in-the-us.html **************************************************************************** ** 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 http://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? 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 **************************************************************************** ARISS congratulations the following mentors who have now mentored over 100 schools: Francesco IKØWGF with 125 (***) Satoshi 7M3TJZ with 124 Gaston ON4WF with 123 Sergey RV3DR with 100 **************************************************************************** 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. 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 2017-11-01 08:00 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. http://www.amsat.org/amsat/ariss/news/arissnews.rtf http://www.amsat.org/amsat/ariss/news/arissnews.txt Total number of ARISS ISS to earth school events is 1178. (***) Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1133. (***) Each contact may have multiple schools sharing the same time slot. Total number of ARISS supported terrestrial contacts is 47. A complete year by year breakdown of the contacts may be found in the file. http://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: Arkansas, Delaware, South Dakota, Wyoming, American Samoa, Guam, Northern Marianas Islands, and the Virgin Islands. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ QSL information may be found at: http://www.ariss.org/qsl-cards.html ISS callsigns: DPØISS, IRØISS, NA1SS, OR4ISS, RSØISS **************************************************************************** The successful school list has been updated as of 2017-11-01 08:00 UTC. (***) http://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf Frequency chart for packet, voice, and crossband repeater modes showing Doppler correction as of 2005-07-29 04:00 UTC http://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correction .rtf Listing of ARISS related magazine articles as of 2006-07-10 03:30 UTC. http://www.amsat.org/amsat/ariss/news/ARISS_magazine_articles.rtf Check out the Zoho reports of the ARISS contacts https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415 **************************************************************************** Exp. 52 on orbit Randy Bresnik Paolo Nespoli IZØJPA Sergey Ryazanskiy Exp. 53 on orbit Mark Vande Hei KG5GNP Alexander Misurkin Joe Acaba KE5DAR **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

5 years

C# DDE code

by richard allen

Microsoft seems to be getting rid of DDE support. Does anyone have some C# or VB2017 DDE client code that can be built under Visual Studio 2017? Thanks, Richard W5SXD

5 years

FO-29 transponder block diagram

by Dani EA4GPZ

Hi all, A few days ago I have transmitted and recorded a (low-power) FT8 signal through the FO-29 linear transponder to test some Doppler correction algorithms I'm developing (see http://destevez.net/2017/10/wsjt-x-and-linear-satellites-part-ii/) After Doppler correction, I'm left with a linear frequency drift both in my downlink signal and in the satellite CW beacon. However, the drift rate of my signal and the beacon are different. Specifically, my signal drifts 1.26 times faster than the beacon. I suspect that this drift is due to one of the local oscillators in FO-29. To understand this better, I need to look at a block diagram of the FO-29 linear transponder. The best I've found is this: http://www.jarl.org/English/5_Fuji/systeme.gif However, I need something similar to this: https://funcubetest2.files.wordpress.com/2010/11/funcube_rf_board_block_dia… Since I need to see the frequencies of all the local oscillators involved in the transponder and CW beacon. Is there a more detailed block diagram for FO-29 or does anyone know something about this information? 73, Dani EA4GPZ.

5 years

Re: [amsat-bb] SatPC32

by Joe Pereira

Good suggestion Roger, will keep that one in mine. My original plan was to build a timer circuit that would stay on for a few minutes and use the voltage that activates the rotator motors as a trigger. JP On Wed, Nov 1, 2017 at 2:36 PM, Roger <ai7rogerroger(a)gmail.com> wrote: > Joe, > I was wondering if you could possibly use a vox circuit activated by the > voice announcer which I believe, if I read things right, is activated once > a bird is visible. > > > 73, Roger > W7TZ > CN83ia > Grid Busters > w7tz.webs.com > > On Tue, Oct 31, 2017 at 8:56 PM, Joe Pereira <joevk5ei(a)gmail.com> wrote: > >> Thanks for your suggestion on using the Arduino Andrew, but at this stage >> I >> am exploring if the actual program can do this function. May look at that >> option later if required. >> >> Colin I think you may be onto it there, I know I spoke to some others >> about >> doing this but just cannot recall it. >> >> I think a change needs to be done in one of the configuration files. >> >> I have tried activating the RTS+ 12V function and I do get a constant >> output voltage on the serial pin, I need it to stay low then switch high >> when sat in view. >> >> We will keep exploring and thanks again. >> >> JP >> >> >> On Tue, Oct 31, 2017 at 9:26 PM, Andrew Rich <vk4tec(a)tech-software.net> >> wrote: >> >> > Just use an arduino on a serial port >> > >> > >> > > On 31 Oct 2017, at 8:42 pm, Colin Hurst <cjhurst(a)bigpond.net.au> >> wrote: >> > > >> > > Joe, >> > > I have often wondered what some of the option offered under Radio >> Setup >> > in >> > > SatPC32 mean. >> > > Must admit I have not read the manual as I have not required anything >> > out of >> > > the ordinary. >> > > Just looking at the Radio Setup there is a RTS+12V selection that may >> or >> > may >> > > not suit your requirements. >> > > Erich DK1TB the author of Satpc32 does monitor this site and he will >> no >> > > doubt offer a more positive answer. >> > > 73 Colin VK5HI. >> > > >> > > -----Original Message----- >> > > From: AMSAT-BB [mailto:[email protected]] On Behalf Of Joe >> > Pereira >> > > Sent: Tuesday, 31 October 2017 20:01 >> > > To: amsat-bb(a)amsat.org >> > > Subject: [amsat-bb] SatPC32 >> > > >> > > Does anyone know if it is possible to output a serial port signal >> when a >> > > satellite is in view. >> > > >> > > I would like to switch an external relay circuit when a particular >> > satellite >> > > is in view. >> > > >> > > Regards >> > > Joe - VK5EI >> > > _______________________________________________ >> > > 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: http://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: http://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: http://www.amsat.org/mailman/listinfo/amsat-bb >> > >

5 years

Re: [amsat-bb] SatPC32

by Joe Pereira

Thanks for your suggestion on using the Arduino Andrew, but at this stage I am exploring if the actual program can do this function. May look at that option later if required. Colin I think you may be onto it there, I know I spoke to some others about doing this but just cannot recall it. I think a change needs to be done in one of the configuration files. I have tried activating the RTS+ 12V function and I do get a constant output voltage on the serial pin, I need it to stay low then switch high when sat in view. We will keep exploring and thanks again. JP On Tue, Oct 31, 2017 at 9:26 PM, Andrew Rich <vk4tec(a)tech-software.net> wrote: > Just use an arduino on a serial port > > > > On 31 Oct 2017, at 8:42 pm, Colin Hurst <cjhurst(a)bigpond.net.au> wrote: > > > > Joe, > > I have often wondered what some of the option offered under Radio Setup > in > > SatPC32 mean. > > Must admit I have not read the manual as I have not required anything > out of > > the ordinary. > > Just looking at the Radio Setup there is a RTS+12V selection that may or > may > > not suit your requirements. > > Erich DK1TB the author of Satpc32 does monitor this site and he will no > > doubt offer a more positive answer. > > 73 Colin VK5HI. > > > > -----Original Message----- > > From: AMSAT-BB [mailto:[email protected]] On Behalf Of Joe > Pereira > > Sent: Tuesday, 31 October 2017 20:01 > > To: amsat-bb(a)amsat.org > > Subject: [amsat-bb] SatPC32 > > > > Does anyone know if it is possible to output a serial port signal when a > > satellite is in view. > > > > I would like to switch an external relay circuit when a particular > satellite > > is in view. > > > > Regards > > Joe - VK5EI > > _______________________________________________ > > 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: http://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: http://www.amsat.org/mailman/listinfo/amsat-bb > >

5 years

Jump to page:

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

AMSAT-BB November 2017