April 2018 - AMSAT-BB - mailman.amsat.org

Re: [amsat-bb] Can I borrow a good presentation.
by Douglas Tabor 18 Apr '18

18 Apr '18

Has embedded audio … if you go to YouTube, Search for “Chasing Satellites” you can see me delivering it. https://www.dropbox.com/s/adj39ylppmdyt3s/N6UA_Things_in_Space.pptx?dl=0 73, Doug, N6UA Douglas Tabor dtabor(a)estesvalley.net

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Re: [amsat-bb] ARISS Event
by Richard Tejera 18 Apr '18

18 Apr '18

I don't know if she is still there ( she may have retired, but if you meet Dr Barry, tell her I said hi. We both graduated from CIHS in 1978! Have a good event. 73 Rick Tejera K7TEJ Saguaro Astronomy Club www.SaguaroAstro.org Thunderbird Amateur Radio Club www.w7tbc.org On April 17, 2018, at 18:06, W2JV <petew2jv(a)verizon.net> wrote: Hello All, As an AMSAT Ambassador, I’m looking forward to being part of tomorrows ARISS contact. I will be presenting a talk prior to the contact on Amateur Radio and AMSAT, and hopefully conduct a few Satellite passes if we don’t have Snow.... 73’s Peter W2JV Central Islip Union Free School District, Central Islip, NY, direct via KD2IFR The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Ricky Arnold KE5DAU Contact is a go for: Wed 2018-04-18 15:57:46 UTC 28 deg The school will be hosting an ARISS contact on Wednesday April 18 at 15:57:46 UTC. The video stream of the contact will be available online. (***) Wednesday, April 18, 2018 (15:57:46UTC - 11:57:46 EDST) Video stream should begin around 10:30am. Stream should come to an end around 12:15pm Navigate to http://www.centralislip.k12.ny.us/ariss Click on the livestream logo. When the event is live, there will be a link to the stream. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus _______________________________________________ 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

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TS-2000 with Heil Headset
by Paul Andrews 18 Apr '18

18 Apr '18

Hello Sat OPs: I'm focused on microwave EME so I am selling my Kenwood TS-2000 (HF/VHF/UHF) and Heil Sound Pro Set Elite-6 headphones. The TS-2000 was manufactured in 2013 and the headphones are nearly new. The radio is 100%. The full duplex TS-2000 is compatible with all the popular satellite tracking software via the CAT interface. The hands-free Heil headset with boom mic makes satellite OP more fun. The stock mic and fused power cable are also included. Contact me directly via email for more info. Free shipping. Available immediately. 73 - Paul - W2HRO

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ARISS Event
by W2JV 18 Apr '18

18 Apr '18

Hello All, As an AMSAT Ambassador, I’m looking forward to being part of tomorrows ARISS contact. I will be presenting a talk prior to the contact on Amateur Radio and AMSAT, and hopefully conduct a few Satellite passes if we don’t have Snow.... 73’s Peter W2JV Central Islip Union Free School District, Central Islip, NY, direct via KD2IFR The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Ricky Arnold KE5DAU Contact is a go for: Wed 2018-04-18 15:57:46 UTC 28 deg The school will be hosting an ARISS contact on Wednesday April 18 at 15:57:46 UTC. The video stream of the contact will be available online. (***) Wednesday, April 18, 2018 (15:57:46UTC - 11:57:46 EDST) Video stream should begin around 10:30am. Stream should come to an end around 12:15pm Navigate to http://www.centralislip.k12.ny.us/ariss Click on the livestream logo. When the event is live, there will be a link to the stream. --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

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IC-9100 4 Sale
by Ted Krempa 16 Apr '18

16 Apr '18

FYI https://www.ebay.com/itm/112930169450?ssPageName=STRK:MESELX:IT <https://www.ebay.com/itm/112930169450?ssPageName=STRK:MESELX:IT&_trksid=p39 84.m1558.l2649> &_trksid=p3984.m1558.l2649 73, K7TRK

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St. Barts satellite operation starting next Weds
by Jim White 16 Apr '18

16 Apr '18

Saint Barts satellite operation starts Wednesday. The FJ/N0KV dxpedition to Saint Barts Island in the Caribbean will take place April 19 through 26.We expect to be on the air on HF by about mid-day local and on satellite passes starting that evening.Operation on SO50, FO29, AO85, AO92 is planned. Given our experience on Montserrat in 2015, we will concentrate on evening passes St. Barts time during the week and afternoon/evening on weekends. Equipment is an IC-910H and Arrow for VHF/UHF. On FO29 we will transmit at about 145.940 and tune the passband for callers. We will exchange grids (FK87). Looking forward to working lots of stations on satellite. Check the FJ/N0KV entry on QRZ.COM for further.We expect to post updates and pass plans to amsat-bb.#amsat Jim, WD0E

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Upcoming ARISS contact with King's High School, Warwick, UK
by n4csitwo＠bellsouth.net 16 Apr '18

16 Apr '18

An International Space Station school contact has been planned with participants at King's High School, Warwick, UK on 19 Apr. The event is scheduled to begin at approximately 12:05 UTC. The duration of the contact is approximately 9 minutes and 30 seconds. The contact will be direct between NA1SS and GB4KHS. The contact should be audible over the United Kingdom and adjacent areas. Interested parties are invited to listen in on the 145.80 MHz downlink. The contact is expected to be conducted in English. The Mars story of the school The Mars project, envisioned by a student after watching Tim Peake's 2016 mission, is our chance to inspire more girls while in their formative years, to consider studying science at A level and beyond. Since 1879 King's High Warwick has been championing girls in science and STEM subjects as one of the leading all-girls schools in the Midlands. The importance of girls' education back then was viewed as inferior to that of boys and the early headmistresses of King's set about trying to change that. Over a hundred years on girls and boy's education is viewed as equal, however the number of girls in science and STEM subjects is still not equal to our male counterparts; through school and into the workplace. Just 35% of girls choose maths, physics and computing compared to 94% of boys The Project One campus is the latest opportunity for King's girls, consisting of brand new school buildings on the Warwick School site. It will feature state of the art science labs, enabling future generations of girls to study with the best facilities possible. The future King's girls at the Prep and local schools will use these labs for their time at King's and we believe the Mars Project will inspire them to see what studying STEM can lead to, helped by access to high quality equipment. The project will assist in creating a collaborative relationship between the wide variety of subjects that have previously had minimal cross over in their syllabuses. The focus on Mars and astronomy links directly to the A Level Physics syllabus, inspiring more girls to study physics beyond GCSE. The supra-curricula activities conducted as a part of the project, such as building rovers in DT widen the educational experience of girls and enable them to see the real-life applications of their learning. Participants will ask as many of the following questions as time allows: 1. When we colonize Mars, what is the most important thing we need to learn from our ancestors' mistakes on Earth? 2. What types of weather can you get on Mars that we would have to tackle if humans were going to live there? 3. Considering the research into life support systems on the ISS and research into in-situ resource utilization, how long after the first manned mission to Mars do you think that a Mars colony can be self-sufficient? 4. Now that you are on the ISS would you have done anything differently during training, physically or mentally? 5. Having experienced the vastness of space, do you believe there are other forms of life in the universe? 6. How has your journey to space changed your perspective on human life? 7. What aspect of space travel do you think needs to be improved in the next 10 years to get us further into space? 8. What is the most magnificent place on Earth from space? 9. How does not having daylight or seasons in space affect you compared to being on Earth? 10. Is it true that the atmosphere changes your sense of taste up in space? 11. How does the feeling of weightlessness compare to the training underwater on Earth? 12. How far into the future is the technology needed to make travelling between solar systems the norm? 13. We all know space can be a dangerous environment. How do you and your fellow astronauts protect yourselves whilst on the ISS? 14. What does your training on Earth entail to help you cope with the effects of the lack of gravity on your sleep? 15. What part of nature do you miss most from Earth when you are in space? 16. How difficult is it for your body to adjust to life in space? 17. What?s the one thing that surprised you most when you first saw Earth from space? 18. What?s your advice to young people dreaming of becoming involved in space programs? 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. Russian school TBD The ISS callsign is presently scheduled to be RSØISS The scheduled astronaut is Alexander Skvortsov Contact is a go for Tue 2018-04-24 11:05 UTC 2. Russian school TBD The ISS callsign is presently scheduled to be RSØISS The scheduled astronaut is Alexander Skvortsov Contact is a go for 2018-04-25 08:35 UTC 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

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Upcoming ARISS contact with Central Islip Union Free School District, Central Islip, NY
by n4csitwo＠bellsouth.net 16 Apr '18

16 Apr '18

An International Space Station school contact has been planned with participants at Central Islip Union Free School District, Central Islip, NY on 18 Apr. The event is scheduled to begin at approximately 15:57 UTC. The duration of the contact is approximately 9 minutes and 30 seconds. The contact will be direct between NA1SS and KD2IFR. The contact should be audible over the state of New York and adjacent areas. Interested parties are invited to listen in on the 145.80 MHz downlink. The contact is expected to be conducted in English. Welcome to the Central Islip Union Free School District - Home of the Musketeers and a proud Suffolk County, New York school system, where approximately 8,000 students in grades Pre-Kindergarten through 12 receive their formal education. Our School District's motto is Children Our Future ~ Diversity Our Strength. The Central Islip Union Free School District is comprised of eight schools: one district-wide early childhood center, four elementary schools, two middle schools and a high school. The Hamlet of Central Islip is a vibrant, culturally-diverse community. A suburban community with urban demographics. We are a positive and progressive school district whose teachers are dedicated to helping students achieve their maximum potential and to develop academically and socially. Our district offers an array of afterschool activities including sports, music, theatre arts and much more. Participants will ask as many of the following questions as time allows: 1. What are the challenges of spending so many months constantly around the same people? 2. What is the best way to describe the feeling of zero gravity? 3. Have you experienced anything unexpected while in space that could not be explained? 4. Have you experienced any significant changes, either physically or emotionally, since being in space? 5. What type of robots do you use on the ISS and how are they helpful? 6. What is your advice for young people who want to become involved in programs at NASA? 7. What is the biggest challenge about being on a long duration space mission? 8. How does digestion in microgravity compare to digestion on Earth? 9. Have you experienced anything in space that has made you change your perspective on life? 10. Are there any plants aboard the ISS and if so, what's different about how they meet their daily requirements? 11. What are the long term effects of reduced leg muscle use in long duration space travel? 12. Is your circadian rhythm affected by multiple sunrises and sunsets each 24 hour period, perhaps making it difficult to sleep for long periods of time? 13. Can you describe the types of training that prepared you for this mission? 14. Can you catch a cold on the Space Station? 15. Do the properties of light appear to be different in space? 16. Are there differences in how your body responds to physical exertion while in microgravity? 17. Would it be possible to transmit a mechanical wave on a rope onboard the space station or outside the station? 18. What are the hardest tasks to perform in space that are routine on Earth? 19. Could you blow a bigger than normal gum bubble in space? 20. Are there precautions that you take BEFORE going into space that can help to prevent bone weakness when you return? 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. King's High School, Warwick, UK, direct via GB4KHS The ISS callsign is presently scheduled to be OR4ISS The scheduled astronaut is Ricky Arnold KE5DAU Contact is a go for: Thu 2018-04-19 12:05 UTC 2. Russian school TBD The ISS callsign is presently scheduled to be RSØISS The scheduled astronaut is Alexander Skvortsov Contact is a go for Tue 2018-04-24 11:05 UTC 3. Russian school TBD The ISS callsign is presently scheduled to be RSØISS The scheduled astronaut is Alexander Skvortsov Contact is a go for 2018-04-25 08:35 UTC 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

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Salado TX ARISS pass April 17 streaming video coverage
by Ronald G. Parsons 15 Apr '18

15 Apr '18

An International Space Station school contact has been planned with participants at Salado Intermediate School, Salado, TX on 17 Apr. The event is scheduled to begin at approximately 16:44 UTC. The duration of the contact is approximately 9 minutes and 30 seconds. The contact will be direct between NA1SS and K5LBJ. The contact should be audible over the state of Texas and adjacent areas. Interested parties are invited to listen in on the 145.80 MHz downlink. The contact is expected to be conducted in English. Streaming video should be available at: TV Station Website Link Location on Website KWTX-10 (CBS) http://www.kwtx.com/ Top center - “Watch Live” KCEN-6 (NBC) http://www.kcentv.com/ Top right - “Watch Live” KXXV-25 (ABC) http://www.kxxv.com/ Top right – “Watch Now” (Ron Parsons W5RKN)

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Making the transponder sats as easy as the fm birds
by Eric Fort 15 Apr '18

15 Apr '18

I’ve had an idea for a long time as to making the satellites with linear transponders as easy to use as the FM “easy sats “. Consider the following: As I understand it, the goal is to adjust your transmitter such that your frequency at the satellite is constant. Our tracking program gives us range to the satellite and its velocity relative to us given our location and the orbital parameters. From this we should have computed Doppler for both transmit and receive. We also know the frequency at the satellite of the various beacons onboard. From this we can measure the doppler and work the other direction If we transmit a subaudable tone of known frequency we should be able to adjust the rx automatically by tracking the tone. (Acssb) Given these multiple ways of setting our tx/rx frequencies for our location can this not simply be automated to such a degree as to simply specify an offset from the beacon and operate as if it were a regular predictable opening on hf? Af6ep Sent using SMTP.

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