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

Upcoming ARISS Contact Schedule as of 2018-10-22 16:00 UTC
by aj9n＠aol.com 22 Oct '18

22 Oct '18

Upcoming ARISS Contact Schedule as of 2018-10-22 16:00 UTC Quick list of scheduled contacts and events: Ashford School, Ashford, CT, direct via KZ1M The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Serena Aunon-Chancellor KG5TMT Contact was successful: Mon 2018-10-22 13:05:49 UTC 49 deg (***) Integrierte Gesamtschule Osterholz-Scharmbeck, Osterholz – Scharmbeck, Germany and Gymnasium Soltau, Soltau, Germany, direct via DN3HB and DN5ABG The ISS callsign is presently scheduled to be DPØISS The scheduled astronaut is Alexander Gerst KF5ONO Contact is a go for: Tue 2018-10-23 09:14:26 UTC 63 deg Martin-Andersen-Nexö-Gymnasium Dresden/DLR_School_Lab TU Dresden, Dresden, Germany, and Liborius-Gymnasium Dessau, Dessau-Roßlau, Germany, direct via DLØTSD and DKØLG The ISS callsign is presently scheduled to be DPØISS The scheduled astronaut is Alexander Gerst KF5ONO Contact is a go for: Wed 2018-10-24 08:22:55 UTC 78 deg Delcastle Technical High School, Wilmington, DE direct via K2CCW The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Serena Aunon-Chancellor KG5TMT Contact is a go for: Wed 2018-10-24 17:48:48 UTC 52 deg Tallmadge Community Learning Center, Lancaster, OH, direct via K8QIK The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Serena Aunon-Chancellor KG5TMT Contact is a go for: Wed 2018-10-31 14:56:40 UTC 27 deg (***) Pathfinder Regional Vocational Technical High School, Palmer, MA, direct via KB1MDS The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Serena Aunon-Chancellor KG5TMT Contact is a go for: Fri 2018-11-02 14:50:19 UTC 36 deg (***) If you are interested in applying for an ARISS contact, please go to http://www.ariss.org/apply-to-host-an-ariss-contact.html The information below is from the ARISS webpage: International Space Station Astronauts are Calling CQ ARISS Students ARISS-US program’s education proposal window open Oct. 1 - Nov. 30, 2018 September 25, 2018: ARISS is seeking proposals beginning October 1, 2018 from US schools, museums, science centers and community youth organizations (working individually or together) to host amateur radio contacts with an orbiting crew member aboard the International Space Station (ISS) between July 1 and December 30, 2019. Each year, ARISS provides tens of thousands of students with learning opportunities about space technologies, communications, and much more through the exploration of Amateur Radio and space. ARISS has been pleased of late, to be one of many possibilities of interest to educators during NASA’s A Year of Education on Station, which celebrates an almost 12-month presence of a teacher aboard the ISS. The ARISS program connects students to astronauts on the ISS through a partnership between NASA, the Radio Amateur Satellite Corporation, the American Radio Relay League, other Amateur Radio global organizations and the worldwide space agencies. The program’s goal is to inspire students to pursue interests and careers in science, technology, engineering, and mathematics (STEM) and in Amateur Radio. Educators report regularly that student participation in the ARISS program stimulates interest in STEM subjects and STEM careers. One educator wrote, “Many of the middle school students who took part in and attended the ARISS contact have selected science courses in high school as a result of that contact.” Educators are setting up ham radio clubs in schools and learning centers because of students’ interest. ARISS is looking for organizations that will draw large numbers of participants and integrate the contact into a well-developed, exciting education plan. Students can learn about satellite communications, wireless technology, science research conducted on the ISS, radio science, and other STEM subjects. 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 a once-in-a-lifetime opportunity for students. The proposal window opens October 1, 2018 and the proposal deadline is November 30, 2018. For proposal guidelines and forms and more details, visit: http://www.ariss.org/hosting-an-ariss-contact-in-the-us.html Proposal webinars for guidance and getting questions answered will be offered October 11 and October 23, 2018, both at 8 pm Eastern Time. Advance registration is necessary. To sign up, go to: ariss-proposal-webinar-fall-2018.eventbrite.com/ 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, click here. ARISS-Canada and the Americas, except USA: Steve McFarlane, VE3TBD ARISS-Japan, Asia, Pacific and Australia: Keigo Komuro, JA1KAB, Japan Amateur Radio League (JARL) ARISS-Russia: Soyuz Radioljubitelei Rossii (SRR) ****************************************************************************** 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: Satoshi 7M3TJZ with 135 Francesco IKØWGF with 132 Gaston ON4WF with 123 Sergey RV3DR with 108 **************************************************************************** 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 2018-10-22 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. 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 1268. (***) Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1214. (***) 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: 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 2018-10-22 16:00 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. 56 on orbit Serena Aunon-Chancellor KG5TMT Alexander Gerst KF5ONO Sergei Propopev **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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FUNcube Warehouse
by David Johnson 22 Oct '18

22 Oct '18

Hi, I preparation for JY1Sat and ESEO we are doing some data migration of existing FUNcube data on to some new servers. Users may experience occasional slight delays in upload and display performance, over the next few days, this will be due to me putting strain on the existing database. The outcome of this will be a singe end point for all data uploads and viewing of the data for all satellites in the constellation. You can follow our progress at http://data.badgersoft.com (place holder for development). Please note that data and pages WILL change their look / content during development. - Dave, G4DPZ

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Upcoming ARISS contact with Integrierte Gesamtschule Osterholz-Scharmbeck, Osterholz - Scharmbeck, Germany and Gymnasium Soltau, Soltau, Germany
by n4csitwo＠bellsouth.net 22 Oct '18

22 Oct '18

An International Space Station school contact has been planned with participants at Integrierte Gesamtschule Osterholz-Scharmbeck, Osterholz - Scharmbeck, Germany and Gymnasium Soltau, Soltau, Germany on 23 Oct. The event is scheduled to begin at approximately 09:14 UTC. The duration of the contact is approximately 9 minutes and 30 seconds. The contact will be direct between DP0ISS and DN3HB and DN5ABG. The contact should be audible over Germany and adjacent areas. Interested parties are invited to listen in on the 145.80 MHz downlink. The contact is expected to be conducted in German. Story: Integrierte Gesamtschule Osterholz-Scharmbeck An der IGS OHZ werden zurzeit im Sekundarbereich I (5. bis 10. Klasse) ca. 980 SchülerInnen und im Sekundarbereich II ca. 300 SchülerInnen unterrichtet. Die IGS OHZ ist eine Ganztagsschule und wir verstehen uns als eine pädagogische Reformschule. Wir gehen davon aus, dass alle Menschen verschieden sind und daher individuell gefördert werden müssen. In der IGS OHZ werden Kinder aller Begabungen aufgenommen, um gemeinsam zu lernen, arbeiten und zu spielen. Wir gestalten das Zusammenleben junger Menschen nach dem Motto "verschieden sein - gemeinsam lernen" und fördern so ein tolerantes Miteinander. An der IGS bemühen uns um die Entwicklung und Lernfortschritte jedes Kindes, um seine ganz besonderen Möglichkeiten und Fähigkeiten. Es gibt an der Gesamtschule von der Klasse 5 bis 9 kein sitzen bleiben. Statt Kinder auf verschiedene Schulformen vorzubereiten oder sie gar auszulesen, bietet die IGS einen gemeinsamen Unterricht. Neben dem Erwerb von Fachwissen ist für uns Soziales Lernen unabdingbar. Die Kinder und Jugendlichen sollen sich in ihren Unterschiedlichkeiten annehmen und respektieren. Sie sollen lernen: anderen zu helfen, aber auch sich selber helfen zu lassen, Konflikte zu lösen, gemeinsame ihre Lernerfolge steigern. Die IGS legt deshalb einen besonderen Wert auf die Gemeinschaft im Klassenverband und im Jahrgang. Die Kinder und Jugendlichen werden in den sechs Jahren von einem Klassenlehrertandem betreut. Um das demokratische Handeln zu erlernen und zu erleben ist im Stundenplan eine Verfügungsstunde fest verankert. Internationale Begegnungen sind ein fester Bestandteil des Schullebens. So besteht u.a. eine Partnerschaft mit einer Schule in Kuopio (Finnland) und in Barcelona (Spanien) in der Sek I, in Kwidzyn (Polen), in Ptolemaida (Griechenland) und in Verona (Italien) in der 11. Klasse. Der jährliche Austausch nimmt einen festen Platz im Jahresablauf ein. Es besteht auch die Möglichkeit im Ausland ein Betriebspraktikum zu absolvieren. Gymnasium Soltau Das Gymnasium Soltau ist das Gymnasium der Stadt Soltau, welche sich ziemlich genau in der Mitte zwischen den bekannten Metropolen Hamburg, Bremen und Hannover in der Lüneburger Heide in Niedersachsen befindet. Zur Zeit besuchen ungefähr 1000 Schüler das Gymnasium und werden dabei von circa 80 Lehrern unterrichtet. In diesem Jahr feiern wir das 125-jährige Bestehen unserer Schule unter dem Motto: "125 Jahre Gymnasium Soltau - weltweit und darüber hinaus". Seit vielen Jahren ist die naturwissenschaftliche Fachgruppe in der Lage alle Fächer sowohl auf grundlegendem als auch erhöhtem Niveau anzubieten. Darüber hinaus gibt es auch nachmittags viele AGs in denen die Schüler ihrem Forscherdrang nachkommen können, wie zum Beispiel im Erfinderclub, der in Zusammenarbeit mit einem hier ansäßigen technischen Betrieb durchgeführt wird. Außerdem gibt es jährliche Kurse in Robotik für Jahrgang 7, Fräsen für Jahrgang 10 und 3D-Druck für die höheren Jahrgänge. Andere Schwerpunkte der Schule finden sich im Bereich Kunst und Musik, die das Schulgebäude verschönern und und mit mehreren Konzerten erfreuen. Schon in der 5. Klasse wird eine Bläserklasse eingerichtet, in der die Schüler intensiv an ihren Fähigkeiten mit den Instrumenten arbeiten. Über das Jahr verteilt gibt es drei Konzerte in denen die Schüler ihr Können demonstrieren, eins davon ein Benefizkonzert was selbstständig durch die Schülerschaft organisiert und durchgeführt wird. Die sprachliche Fachgruppe ist ein weiterer großer Eckpfeiler unseres Schullebens mit Austauschprogrammen nach Rennes und Paris oder im Fall von Latein nach Xanten, wo man sich alte römische Bauwerke anschauen kann. Außerdem führt die Lateinfachschaft jährlich eine Mythennacht durch, wo die Kinder die Mythen der Griechen und Römer kennenlernen. Nicht zuletzt stellt jeder Jahrgang eine Cafeteria-Klasse, die dann an einem Austausch nach Tschechien teilnimmt. An unserer Schule gibt es eine lange Tradition des Theaterspiels. So wird in jedem Jahr ein "Klassiker" einstudiert und dann den Mitschülern, Eltern und Lehrern in mehreren Aufführungen vorgeführt. Das Gymnasium hat in den letzten Jahren an einigen Projekten teilgenommen, so zum Beispiel Comenius, "Schule ohne Rassismus" und einem Zertifikat für humanitäre Schule. Translation Integrierte Gesamtschule Osterholz-Scharmbeck Currently there are approximately 980 pupils in the junior secondary (5th - 10 grade) and approx. 300 pupils in the secondary at the IGS OHZ (integrated comprehensive school). We are an all-day-school and perceive ourselves as a pedagogical and educational reform school where we see everyone as an individual that needs individual fostering. All pupils are accepted at our school in order to work, learn and play together. Fort our young and adolescent pupils we design our cohabitation with the motto: "Be different - Learn together". This way encourages a peaceful atmosphere of openness and tolerance. Here, at our school we strive towards each and everyone's single growth and progress, not only in education but also in life, and care for each and everyone's opportunities and skills. >From grade 5 to 10 no pupil has to repeat a year due to our school system in which all pupils are taught together in each and every subject. Besides the acquisition of skills in different subjects, social learning and the support of the social integration is indispensable. All pupils should accept and respect social differences. They ought to learn: helping others, accepting help for oneself, resolving conflicts and increasing their learning success. This is why our school places a great deal of importance on the community in the class and in the entire year (5th through 10th). The young students and youths (5th to 10th grade) are taught by teacher tandems. To acquire and experience democratic behavior every class has an ordinance hour with one of the tandem teachers. International encounters are a fixed and integral part of everyday school life. As of now there are different partnerships with schools in Kuopio (Finland), Barcelona (Spain) for grades 8 and 10 as well as Kwidzyn (Poland), Ptolemaida (Greece) and in Verona (Italy) for grade 11. Yearly exchanges are firmly established presences in our yearly schedules. Gymnasium Soltau The Gymnasium Soltau is the high school of the city Soltau which is located right in the center between the three famous cities Hamburg, Bremen and Hannover in the Lüneburger Heide in Lower Saxony. Currently there are approximately 1000 students visiting the Gymnasium Soltau which are being taught by approximately 80 teachers. This year, we are celebrating the 125th school anniversary with the motto: "125 years Gymnasium Soltau - worldwide and even beyond". For many years the science department of the school has been able to provide courses in all scientific subjects on basic and advanced levels. There are also many voluntary workgroups in the afternoons in which students can nurture their curiosity for science like the inventors club which is realized in collaboration with a local tech company. There are also annual courses in robotics for all 7th grades, a seminar in milling for 10th grades and a seminar in 3D printing for the older students. Another focal points in school life are the arts and music department which are active in embellishing the school building and giving concerts. From an early age students are taught wind instruments in a special tutor group. There are 3 concerts throughout the year in which the students can present the skills they learned, one of which is a charity concert organized by the students themselves. The linguistic department is another cornerstone in school life providing exchange programs to Rennes and Paris or in case of Latin an excursion to Xanten to visit old Roman structures. There is also a so called myths night, where the young students get to know the myths of the old Greeks and Romans. Each year there is a cafeteria-class that is participating in an exchange program to Czechia. Also we have a long history of theatre workgroups in our school life which rehearse classical screenplays and present them to the whole school in several performances throughout the year. The school has taken part in several projects during the last years like Comenius, "school against racism" or a humanitarian certificate. Participants will ask as many of the following questions as time allows: 1. Was war Ihre beste Erfahrung im Astronautentraining oder im Weltraum? 2. Haben Sie auf der ISS eine Waschmaschine und Wäschetrockner? 3. Ist der Raketenstart vergleichbar mit einer Achterbahnfahrt oder wie fühlt es sich an? 4. Würden wir Kinder im Weltall schneller wachsen? 5. Wie schnell gewöhnt man sich an die Schwerelosigkeit und nach der Rückkehr dann wieder an die Schwerkraft? 6. Wie sind Sie auf die Idee gekommen Astronaut zu werden? 7. Welches war Ihr Lieblingsfach in der Schule und inwiefern hatte es Einfluss auf Ihren Werdegang als Astronaut? 8. Was machen Sie, wenn jemand auf der ISS krank wird, z.B. eine Erkältung bekommt? 9. Wie würden Sie das Astronautenleben in einem Satz beschreiben? 10. Nehmen Sie Wasser mit zur ISS mit? Wie viele Liter sind das? 11. Wie gestalten Sie Freizeit und Privatleben auf der ISS? 12. Was ist Ihr Forschungsgebiet und wie weit sind Sie damit? 13. Haben Sie ein Vorbild in wissenschaftlicher Hinsicht? 14. Was war das größte / gefährlichste technische Problem, dass Sie auf der ISS bisher hatten? 15. Gibt es eine Möglichkeit die manuelle Kontrolle über die ISS zu erlangen um ein Ausweichmanöver durchzuführen? 16. Wie sind Sie an den Job gekommen bzw. wie sind Sie ein Astronaut geworden? 17. Wie fühlt es sich an, einer der wenigen Menschen zu sein, der die Erdathmosphäre verlassen hat? 18. Das Astronautentraining, wie muss man sich das vorstellen? Was müssen Sie alles üben und können? 19. Beeinflusst dein Aufenthalt im Weltraum deine Weltanschauungen, Überzeugungen usw.? 20. Nach welcher Uhrzeit richten Sie sich? 1. What was the best experience you had in your training or in space? 2. Do you have a washing machine and clothes dryer on the ISS? 3. Does the rocket launch feel like a rollercoaster ride or how does it feel? 4. Would we kids grow faster in space? 5. How fast do you get used to weightlessness and after you return to earth to gravity again? 6. What inspired you to become an astronaut? 7. Which was your favorite subject in school and how did it influence your career path as astronaut? 8. What do you do if someone on the ISS became ill and for example had a cold? 9. How would you describe your daily life on the ISS in one sentence? 10. Do you take water with you to the ISS? How many liters do you take with you? 11. How do you organize free time and privacy on the ISS? 12. What is your field of research in space and how much research do you still have to do? 13. Do you have a scientific role model? 14. What has been the biggest/ most dangerous problem that you have had on the ISS so far? 15. Is it possible to take control over the ISS's steerage to perform an evasive maneuver? 16. How did you get the job as an astronaut? 17. How does it feel to be one of the few people who left our atmosphere? 18. What does the training to become an astronaut look like? What do you need to be able to do and practice? 19. Does your stay in space influence your world views, beliefs, etc.? 20. What is the time you use in 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. Martin-Andersen-Nexö-Gymnasium Dresden/DLR_School_Lab TU Dresden, Dresden, Germany, and Liborius-Gymnasium Dessau, Dessau-Roßlau, Germany, direct via DLØTSD and DKØLG The ISS callsign is presently scheduled to be DPØISS The scheduled astronaut is Alexander Gerst KF5ONO Contact is a go for: Wed 2018-10-24 08:22 UTC 2. Delcastle Technical High School, Wilmington, DE direct via K2CCW The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Serena Aunon-Chancellor KG5TMT Contact is a go for: Wed 2018-10-24 17:48 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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Re: [amsat-bb] KR-400 transformer wiring
by Hans BX2ABT 22 Oct '18

22 Oct '18

Hello Jim and others on the list, Tried various combinations today and the closest to the original voltages was the following: - One side of 110V connected to shorted 1 and 2. - The other side of 110V connected to shorted 5 and 6. A combination of 3 and 4 also worked, but voltages were 15% too high. As I wrote, I forgot about "half the voltage, double the current", so two primary windings should be in parallel with each other when using 110V in order to balance the current. All's well that ends well. Next step is to see if the rotator still rotates. 73 de Hans BX2ABT On 10/21/18 10:24 PM, Jim Sanford wrote: > Try this: > > Remove the short from 2 and 5. > > Connect 110V to 1 and 2. > > Short 3 - 6. > > Measure output voltage. If too low, put power at 4 and 5. > > > It is possible that this would put 3 - 5 and 4 - 6 in opposite > phases. In which case, you'll have ZERO output. In this case, short > 3 and 4 instead of 3 and 6. Again try power at 1 and 2 first. > > > Good luck, and please share results! > > 73, > > Jim > > wb4gcs(a)amsat.org > > > > On 10/21/2018 9:12 AM, Hans BX2ABT wrote: >> I got this old KR-400 azimuth rotor as a gift, but is wired for 220V >> and I need to run it off of 110V. The transformer's wiring now looks >> like this: >> >> >> | 220V | >> | | >> |~~~~|~~~~| |~~~~|~~~~| >> 5 1 3 6 2 4 >> | | >> |__________________| >> >> >> If the drawing is messed up, here is the gist of it: The primary >> consists of two (parallel/separate) windings, one with odd, one with >> even numbering (3-5 and 4-6) with the center of the winding named 1 >> and 2. Currently 2 and 5 are shorted and 220V comes in at 1 and 6. So >> current flows from 1 to 5 to 2 to 6 and vice versa. >> >> To rewire to 110V I guess I just use any of the combination 1-3, 1-5, >> 2-4 or 2-6. But I am just curious why the 220V wiring was done over >> two coils, not one? Was this factory standard or has my unit been >> modified with a different transformer? >> >> Once I get the control unit powered up it time to test the rotator >> and see if it needs any maintenance (probably will, because it hasn't >> been used for a long while). >> >> _______________________________________________ >> 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 > > > --- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > > > >

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Re: [amsat-bb] AlfaSpid issue
by kb2mjeff＠att.net 21 Oct '18

21 Oct '18

After going over the schematic (Thanks Dimitry) I see nothing wrong with the hardware, in fact I wonder if there was ever a hardware issue. I used the EL cable to move the antennas CCW about 1.5 turns. When I fired it up after replacing the relays it was stuck in CW on. I had to do this in an odd way , by resetting the el down 20 degrees at a time to bring the antennas back to north. Now I get no tactile(relay click on CCW AND EL up with the cables disconnected. All 4 relays seem good, this to me appears to be in the ROT2 firmware. Jerking around with the buttons in the setup routines in a meaning less way will get all for relays to click, but when I go to operational mode I’m back to CCW and EL only. Monday I’m going to try and contact someone who represents this company in the US. Anyone have a contact for AlfaSpid in the US? It seems there are lots of issues with this controller... 73 Jeff kb2m I had similar problems to this over the last 18 months with the SPID ROT2 controller. It was replaced 3 times and showed the same issue as you have intermittently over this time. I am using MacDoppler and my supplier and the manufacturer were convinced it was software. On returning to the manufacturer and taking the trouble to get my concerns and issues translated into Polish. I track numerous satellites, some one after another and listed all of this. So I returned the controller and rotor to Poland (at their expense) but they only tracked the ISS over a couple of days and found nothing wrong. Not wanting to continue with the ROT2 as I was convinced this was the issue I upgraded to their MD02 controller. Although this has its own quirks I have not suffered from the same relay related issue since. There are also several YouTube videos of the problem that yours is exhibiting https://youtu.be/GWbhez5vadM Sorry I haven’t got the cure. Best 73 Pete G0ABI On 20 Oct 2018, at 23:37, kb2mjeff(a)att.net wrote: Here I go answering my own questions. I think I found part of my problem. The buttons don't line up in the case very well and caused the rotor to hung up turning in one direction. That was problem number two, I fixed problem number one the bad relay that started all of this.To fix this temporality I have the board out of the case to test and what is now happening is that I still can't turn CCW. All buttons work ok except for the CCW button. I tried a reset thinking that I'm over some set location in the firmware that I cant go CCW, but the reset doesn't work. I replaced all 4 relays. With the rotor completely disconnected I can get a relay click for every rotational control button except CCW, it has to be a glitch in the firmware I can't clear, as I replaced all four relays. And no I really don't want to spend the $900 for the green heron controller. Any other ideas? Thanks for your help... 73 Jeff kb2m -----Original Message----- From: kb2mjeff(a)att.net Sent: Saturday, October 20, 2018 3:37 PM To: Amsat Subject: [amsat-bb] AlfaSpid issue I’m back at my winter home in Florida and decided today, to work on my AlfaSpid rotor control box issue. I replaced two relays to fix the Elevation issue but in testing it before I replaced the other two relays I’m now having a problem with the azimuth that’s been working 100% until this point. When I turn on the rotor control the elevation now seems to work ok, but now the azimuth immediately goes into a clockwise rotation. No matter what I do to the controller, upon startup it starts turning CW, only way to stop is to power it down The azimuth was working fine this morning when a worked a couple of sat passes. Anyone have any ideas? Does anyone know where I can send this to have it fixed? I have no schematic, or even simple instructions on how to reset, etc. 73 --- This email has been checked for viruses by AVG. https://www.avg.com

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AO-91 Transatlantic
by Peter Green 21 Oct '18

21 Oct '18

Hi Burns Many thanks for the QS so it was a little scratchy at times but we made it thank you for FN42. There was also a CU3 and an EA5 calling on the satellite. It would be absolutely great to get more operation from North America on the FM satellite working transatlantic. Thanks again for taking the time and trouble to come up on the satellite. Best wishes Pete G0ABI Sent from my iPhone

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Re: [amsat-bb] KR-400 transformer wiring
by Hans BX2ABT 21 Oct '18

21 Oct '18

Ah, I forgot about the (double compared to 220V) current being distributed between two parallel windings when using 110V, so that must be it. It's late now, but will try Monday. Cheers, Hans On 10/21/18 10:24 PM, Jim Sanford wrote: > Try this: > > Remove the short from 2 and 5. > > Connect 110V to 1 and 2. > > Short 3 - 6. > > Measure output voltage. If too low, put power at 4 and 5. > > > It is possible that this would put 3 - 5 and 4 - 6 in opposite > phases. In which case, you'll have ZERO output. In this case, short > 3 and 4 instead of 3 and 6. Again try power at 1 and 2 first. > > > Good luck, and please share results! > > 73, > > Jim > > wb4gcs(a)amsat.org > > > > On 10/21/2018 9:12 AM, Hans BX2ABT wrote: >> I got this old KR-400 azimuth rotor as a gift, but is wired for 220V >> and I need to run it off of 110V. The transformer's wiring now looks >> like this: >> >> >> | 220V | >> | | >> |~~~~|~~~~| |~~~~|~~~~| >> 5 1 3 6 2 4 >> | | >> |__________________| >> >> >> If the drawing is messed up, here is the gist of it: The primary >> consists of two (parallel/separate) windings, one with odd, one with >> even numbering (3-5 and 4-6) with the center of the winding named 1 >> and 2. Currently 2 and 5 are shorted and 220V comes in at 1 and 6. So >> current flows from 1 to 5 to 2 to 6 and vice versa. >> >> To rewire to 110V I guess I just use any of the combination 1-3, 1-5, >> 2-4 or 2-6. But I am just curious why the 220V wiring was done over >> two coils, not one? Was this factory standard or has my unit been >> modified with a different transformer? >> >> Once I get the control unit powered up it time to test the rotator >> and see if it needs any maintenance (probably will, because it hasn't >> been used for a long while). >> >> _______________________________________________ >> 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 > > > --- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > > > >

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KR-400 transformer wiring
by Hans BX2ABT 21 Oct '18

21 Oct '18

I got this old KR-400 azimuth rotor as a gift, but is wired for 220V and I need to run it off of 110V. The transformer's wiring now looks like this: | 220V | | | |~~~~|~~~~| |~~~~|~~~~| 5 1 3 6 2 4 | | |__________________| If the drawing is messed up, here is the gist of it: The primary consists of two (parallel/separate) windings, one with odd, one with even numbering (3-5 and 4-6) with the center of the winding named 1 and 2. Currently 2 and 5 are shorted and 220V comes in at 1 and 6. So current flows from 1 to 5 to 2 to 6 and vice versa. To rewire to 110V I guess I just use any of the combination 1-3, 1-5, 2-4 or 2-6. But I am just curious why the 220V wiring was done over two coils, not one? Was this factory standard or has my unit been modified with a different transformer? Once I get the control unit powered up it time to test the rotator and see if it needs any maintenance (probably will, because it hasn't been used for a long while).

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Lapan IO86
by PY5LF 20 Oct '18

20 Oct '18

Jamboree on the air , Lapan , IO86 . https://youtu.be/iPh-D0h_cEI 73

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AlfaSpid issue
by kb2mjeff＠att.net 20 Oct '18

20 Oct '18

I’m back at my winter home in Florida and decided today, to work on my AlfaSpid rotor control box issue. I replaced two relays to fix the Elevation issue but in testing it before I replaced the other two relays I’m now having a problem with the azimuth that’s been working 100% until this point. When I turn on the rotor control the elevation now seems to work ok, but now the azimuth immediately goes into a clockwise rotation. No matter what I do to the controller, upon startup it starts turning CW, only way to stop is to power it down The azimuth was working fine this morning when a worked a couple of sat passes. Anyone have any ideas? Does anyone know where I can send this to have it fixed? I have no schematic, or even simple instructions on how to reset, etc. 73 Jeff kb2m --- This email has been checked for viruses by AVG. https://www.avg.com

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