AMSAT-BB June 2016

157 participants
218 discussions

by Trevor .

Students at the Ivy League Brown University are developing an amateur radio satellite EQUiSat that will carry a Xenon Flash Tube (XFT) subsystem to act as an Optical Beacon that should be visible to the unaided eye of observers on Earth. See http://www.uk.amsat.org/?p=10635 73 Trevor M5AKA AMSAK-UK http://www.amsat-uk.org/ ----

3 years, 11 months

Upcoming ARISS Contact Schedule as of 2015-10-26 23:00 UTC

by AJ9N＠aol.com

Upcoming ARISS Contact Schedule as of 2015-10-26 23:00 UTC Quick list of scheduled contacts and events: Possible Russian contact with Kursk Tue 2015-10-27 11:35 UTC Dearborn Public Schools, Dearborn, Michigan, USA, direct via K8UTT The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Kjell Lindgren KO5MOS Contact is a go for Option #3: Tue 2015-10-27 16:01:59 UTC 57 deg Watch for a live video stream that should start about 15:00 UTC: (***) http://www.dearbornschools.org https://www.youtube.com/watch?v=hbhrQiZ62LE Daggett Montessori School K-8, Fort Worth, Texas, USA, direct via K5COW The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Kjell Lindgren KO5MOS Contact is a go for Option #4: Thu 2015-10-29 14:12:56 UTC 31 deg **************************************************************************** ** Interested in hosting an ARISS contact? The window is now open from 2015-09-01 to 2015-11-01. These proposals will be for school contacts during the second half of 2016. Go to http://www.arrl.org/hosting-an-ariss-contact or http://www.ariss.org/apply-to-host-an-ariss-contact.html for full details. To help organizations in preparing their proposals, the ARISS Program Coordinator will offer hour-long online information sessions. These are designed to provide more information regarding US ARISS contacts and the proposal process and offer an opportunity to ask questions. While attending an online information session is not required, it is strongly encouraged. These will be offered Thursday, September 17, at 2000 UTC; Tuesday, September 22, at 2000 UTC, and Wednesday, September 30, at 2300 UTC. Advance registration is necessary. Email ARISS (ariss(a)arrl.org) to sign up for an information session. **************************************************************************** ** >From 2015-12-20 to 2016-01-04, there will be no US Operational Segment (USOS) hams on board ISS. So any schools contacts during this period will be conducted by the ARISS Russia team. **************************************************************************** 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. **************************************************************************** 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: Gaston ON4WF with 121 Francesco IKØWGF with 114 Satoshi 7M3TJZ with 112 **************************************************************************** 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 8061 date and time format YYYY-MM-DD HH:MM:SS The complete schedule page has been updated as of 2015-10-24 06:00 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 Total number of ARISS ISS to earth school events is 1001. (***) Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 966. (***) Each contact may have multiple schools sharing the same time slot. Total number of ARISS supported terrestrial contacts is 46. 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, North Dakota, Rhode Island, South Dakota, Vermont, 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 2015-10-24 06:00 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. 43/44 on orbit Scott Kelly Mikhail Kornienko RN3BF Exp. 44 on orbit Oleg Kononenko RN3DX Kimiya Yui KG5BPH Kjell Lindgren KO5MOS Exp. 45 on orbit Sergey Volkov RU3DIS **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

5 years

LVB Tracker USB serial port driver for Windows 7 x64?

by Bill Bordy, NJ1H

Has anyone located a driver for the LVB Tracker internal USB to serial port adapter on Windows 7 x64? If not, has anyone reverted to the serial port connection on LVB Tracker and used an external USB to serial port adapter successfully with SatPC32 on Windows 7 x64? I have an Edgeport multiple USB to serial port that has drivers for Windows 7 x64 that I will use if I have to. I would prefer using the LVB Tracker with its USB to serial adapter if someone has another solution. 73, Bill NJ1H

5 years, 9 months

Re: [amsat-bb] Free content from six satellites via Outernet (APRS?)

by Robert Bruninga

Global Ham channel? We should find someone to work with the OUTERNET folks to add an amateur radio channel to their downlink. Their satellites could provide connectivity to 99% of amateur radio operators on earth. In addition, Ham Radio can bring to OUTERNET an uplink capability that they currently don't have. And the uplink can be from the same remote areas where there is no service... How? Like this. They simply take the APRS packet data stream from the global APRS Internet System (APRS-IS) and stream it in their downlink for hams. Then hams anywhere on earth can transmit traffic via HF back into the system. Since the APRS-IS is one of the world's largest HF receiver-diversity receiver networks in the world, then a packet transmitted from almost anywhere on earth has a reasonable chance of being heard at least once at least somewhere and interjected back into the network, where it gets to the OUTERNET and then in the downlink. The only question, is the atrophy of our HF IGates? Years ago, the HF channel on 10,147.2 MHz had receivers all over the world. I have not listened much recently, but maybe there is still a viable network there. And if not, maybe we could re-invigorate it if it meant global APRS connectivity for ham travelers and hams in remote areas. An HF packet transmitter can be as small as a cigar box and solar powered. Has anyone tuned in the OUTERNET downlink? I have heard anyone with OUTERNET's free ORxPi software and a Raspberry Pi can get the OUTERNET content when plugged into a DVB-S tuner. Then there is of course the arm-chair-lawyers concern of rebroadcast of amateur radio content on a non-ham network? Bob, WB4APR -----Original Message----- From: AMSAT-BB [mailto:[email protected]] On Behalf Of Thane Richard Sent: Friday, November 13, 2015 1:22 PM To: amsat-bb(a)amsat.org Subject: [amsat-bb] Free content from six satellites via Outernet Hello everyone, My name is Thane and I lead content and business development at Outernet. Some of you may be aware of us but I suspect most are not. I am writing this email to introduce Outernet to AMSAT. Outernet broadcasts a DVB-S signal <https://wiki.outernet.is/wiki/Coverage_and_transponder_settings> from six different satellites covering 99% of humans on Earth. We created this information service to reach the 4.3 billion people who do not have Internet access and designed it to overcome the problems the Internet presents, namely download speed and recurring cost. Our datacast is completely free to receive, our bitrate is 90 Kbps (~1 GB/day of content), and you can even build your own receiver with a Raspberry Pi <http://store.outernet.is/>. Right now, the content we send is curated by us and a group of editors but we are working on a Reddit/Wikipedia/YouTube mashup where the contents of our broadcast can be decided publicly. Currently, we broadcast Wikipedia, 30,000+ ebooks, PLOS One journal articles, Khan Academy, CK12 textbooks, music from SoundCloud, and more. I want to invite this community to be involved in Outernet and help us build this project. Our current focus is on developing channels to get devices into schools and generally into countries/areas where Internet penetration is very low. Our forum <http://discuss.outernet.is> is very active with users and Outernet staff. Please stop by! Avidly, Thane -- Thane Richard <https://twitter.com/thanerichard> Content and Business Development Lead Outernet <http://outernet.is/> *Outernet in the press:* WIRED <http://www.wired.com/2015/07/plan-beam-web-3-billion-unconnected-humans/> , Inc.com <http://www.inc.com/dev-aujla/a-library-for-all.html>, TechCrunch <http://techcrunch.com/2015/03/13/outernet-joins-the-space-race-for-intern et-accessibility/> , Gizmodo <http://gizmodo.com/what-is-the-outernet-and-is-it-the-future-of-the-inter n-1659647614> , BBC <http://www.bbc.com/news/technology-29593734>, CNN <http://www.cnn.com/2014/12/11/tech/internet-for-everyone/>, Fast Company <http://www.fastcolabs.com/3027663/all-about-google-loons-low-cost-space-b ased-competitor-outernet> , LA Times <http://www.latimes.com/business/technology/la-fi-g-outernet-explained-201 40808-htmlstory.html> , Motherboard <http://motherboard.vice.com/read/how-the-outernet-plans-to-broadcast-free -internet-from-space> Our receiver, Lighthouse, is now available! To show how revolutionary Lighthouse is, we installed one in a remote school in Uganda. Watch the video here <https://www.youtube.com/watch?v=JlQFoGK1aWQ>. _______________________________________________ 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, 11 months

LilacSat-2 is ON!!!!!

by Perry Yantis

LilacSat-2 is on today!!!!!! Perry WB8OTH py41(a)att.net sent from my Apple Macbook Pro

5 years, 11 months

Upcoming ARISS contact with Justus-Knecht-Gymnasium, Bruchsal, Germany

by n4csitwo＠bellsouth.net

An International Space Station school contact has been planned with participants at Justus-Knecht-Gymnasium, Bruchsal, Germany on 01 July. The event is scheduled to begin at approximately 08:31 UTC. The duration of the contact is approximately 9 minutes and 30 seconds. The contact will be direct between OR4ISS and DN1JKG. 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 English. The Justus-Knecht-Gymnasium is one of the biggest schools of general education in the administrative district of Karlsruhe in Baden-Wurttemberg. More than 1,300 students are taught by over one hundred teachers. Our focus is on a scientific profile with the succession of languages being English-French or English-Latin. Furthermore, science and technology is a major subject starting in year 8. About 85% of our students opt for this profile. For four years now the Justus-Knecht-Gymnasium has been one of 44 model schools in Baden-Wurttemberg which allow students to take their A-levels at different speeds - either after eight or nine years of secondary education. The Justus-Knecht-Gymnasium is also participating in three different educational pilot projects. In the last two years leading up to their A-levels, students may take up Mathematics "plus" (an enhanced version of the subject Mathematics, six lessons a week) or computer science as a major subject as well as science and technology as a minor subject. Additionally, there are optional subjects for senior students, such as for example psychology, philosophy, drama, and especially natural sciences like geology, computer algebra, computer science, and astronomy. The Justus-Knecht-Gymnasium cooperates with partners in various fields, especially the Karlsruhe Institute of Technology (KIT). In 2015 the town of Bruchsal organized the "Heimattage Baden-Württemberg" (Homeland Days of Baden-Württemberg). The Justus Knecht-Gymnasium took part in different projects, e.g. "Heimat Erde" (Homeland Earth). Students of different years worked on the topic. Moreover there's a study team working together with the amateur radio operators of Bruchsal. They established radio communication, built a stratosphere balloon and prepared the radio link to the ISS. Participants will ask as many of the following questions as time allows: 1. Welcoming speech in English and Russian) Is the space debris a threat for the ISS? 2. How long does it take to return to earth in case of emergency? 3. What do you do with the time saved due to time dilatation? 4. Do you feel the temperature differences between inside and outside during a spacewalk? 5. When will it be possible to realize a mission to Mars in your opinion? 6. How do you lubricate mechanical parts against friction in space? 7. How many calories do you need per day? 8. Do you play dart in space? 9. Have you ever realized experiments with flying animals like birds on the ISS? 10. In which way does the 90 minute-day-night-change influence your life on board? 11. Are you floating in your dreams, too? 12. How do you recycle your water on board? 13. Which buildings can you see from above? 14. Are you able to see polar lights from above? 15. Which animals are living currently on board? 16. Do you miss the weather on the ISS? 17. What do you think about planet earth from high above? 18. Did you wear a life vest or parachute during your flight to the ISS? 19. What do you do in your spare time? 20. Did you get medical training during your preparation on earth? 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): Science Museum of Virginia, Richmond, Virginia, telebridge via VK5ZAI The ISS callsign is presently scheduled to be NA1SS The scheduled astronaut is Jeff Williams KD5TVQ Contact is a go for: Wed 2016-07-06 14:28:20 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), and the 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

6 years, 2 months

AO-16 telemetry 3 Oct 2010

by Mark L. Hammond

Hi All, Here is a quick AO-16 update. On Sunday I turned AO-16 long enough to get some telemetry packets. The satellite would remain on for less than one minute after being commanded on. A quick test of the "bent pipe" voice mode repeater was successful. . The "hardware watchdog timer problem" is still evident; as expected, spacecraft temperatures are insufficient to keep the transmitter ON (needs to be above 15 deg C). Orbit projections suggest that satellite illumination conditions will not result in increased temperatures for nearly 10 years. Command stations do periodically turn AO-16 "ON" to check on its condition and see if the hardware timer problem has "automagically" fixed itself (which in not anticipated, but who knows...). AO-16 telemetry 3 Oct 2010 1838 utc PACSAT MBL Telemetry Decoder Ver. 1.3 (c) Mike Rupprecht, DK3WN =============================================================================== (average values) +10V Battery Bus : 0.00 V Battery Charge Reg : 0.55 mA Base Temp : 9.07 °C PSK RF Out : 1.90 W +5V RX Bus : 4.87 V +8.5V RX Bus : 8.49 V +10V RX Bus : 11.24 V Here is another teaser :) Several months ago I commanded the AO-16 S-band transmitter ON; it too remains functional (albeit weak), and was received by me, Drew KO4MA, and Alan WA4SCA. 73, -- Mark L. Hammond [N8MH]

6 years, 2 months

Re: [amsat-bb] US barriers to orbit (Re: Amateur communication satellites)

by David G0MRF

Hi Paul / Bob We are fortunate with AO-73, If I recall correctly, it is power positive in all modes except "Loopback" where it does drain the battery if left on 24/7 Elipse detection was our key to success. However, we have come to realise that an adjustable timer that allows a satellite to charge for X minutes after entering sunlight provides much more control over long term management of the power budget and battery life. - Another lesson learned. Thanks David G0MRF AO-73 is a 1U cubesat and power positive with a 20 kHz wide linear transponder at about 300 mW PEP. With a 10m downlink, you have less path loss to contend with than on 2m (but more loss through the ionosphere), but I'd think it would be doable if the passband is kept relatively narrow and the power output low. 73, Paul, N8HM On Wed, Jun 29, 2016 at 6:26 PM, Robert Bruninga <bruninga at usna.edu> wrote: >> How big and or heavy will this 15/10 bird be? > > A small cubesat. To support a linear transponder takes a lot of power. We > might have to leave it off at night. Not sure until we do the analysis. > Bob > > -----Original Message----- > From: Robert Bruninga [mailto:bruninga at usna.edu] > Sent: Wednesday, June 29, 2016 3:28 PM > To: AMSAT-BB > Cc: bruninga at usna.edu > Subject: RE: [amsat-bb] US barriers to orbit (Re: Amateur communication > satellites) > >>> Within the US, when someone like Bob, WB4APR, tries to build amateur >>> communication sats, he runs into needless obstacles from FCC and NTIA.

6 years, 2 months

field day statistics

by Bruce

i was asked about some statistics for field day. usually in the journal article, i place about 3-4-5 years worth of data in there. i just created a page on the amsat.org site where you can peruse data back to 2005 with regard to field day. sorry, i did not keep data prior to that. i will update it with 2016 data after we get all the results in. http://www.amsat.org/?page_id=5301 73...bruce -- Bruce Paige, KK5DO AMSAT Director Contests and Awards AMSAT Board Alternate 2015-2016 ARRL Awards Field Checker (WAS, 5BWAS, VUCC), VE Houston AMSAT Net - Wed 0100z on Echolink - Conference *AMSAT* Also live streaming MP3 at http://www.amsatnet.com Podcast at http://www.amsatnet.com/podcast.xml or iTunes Latest satellite news on the ARRL Audio News http://www.arrl.org AMSAT on Twitter http://www.twitter.com/amsat

6 years, 2 months

Little Girl that lives aboard AO-85

by Peter Laws

Who is she and why did she announce her presence the other evening? (~0300 UTC Wednesday / 2200 CDT Tuesday) For me, it was right about/after AOS but I'm sure she wasn't talking solely for my benefit. Mode change? Reboot? Desperate plea for help? Peter -- Peter Laws | N5UWY | plaws plaws net | Travel by Train!

6 years, 2 months

Jump to page:

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

AMSAT-BB June 2016