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

ANS-091 AMSAT News Service Weekly Bulletins
by Lee McLamb 31 Mar '18

31 Mar '18

AMSAT NEWS SERVICE ANS-091 The AMSAT News Service bulletins are a free, weekly news and infor- mation service of AMSAT North America, The Radio Amateur Satellite Corporation. ANS publishes news related to Amateur Radio in Space including reports on the activities of a worldwide group of Amateur Radio operators who share an active interest in designing, building, launching and communicating through analog and digital Amateur Radio satellites. The news feed on http://www.amsat.org publishes news of Amateur Radio in Space as soon as our volunteers can post it. Please send any amateur satellite news or reports to: ans-editor at amsat.org. In this edition: * AO-92 Operations Schedule * Russian SSTV Transmission Events Planned * AMSAT at the 2018 Hamvention -- Call for volunteers * AMSAT-UK Call for Speakers for Colloquium 2018 * Upcoming ARISS Contact and Event Schedule * Athenoxat-1 QSL Card Challenge SB SAT @ AMSAT $ANS-091.01 ANS-091 AMSAT News Service Weekly Bulletins AMSAT News Service Bulletin 091.01 From AMSAT HQ KENSINGTON, MD. DATE April 1, 2018 To All RADIO AMATEURS BID: $ANS-091.01 AO-92 Operations Schedule AO-92 operations are scheduled among the U/v FM repeater, L-Band Downshifter, Virginia Tech Camera, and the University of Iowa’s High Energy Radiation CubeSat Instrument (HERCI). Please keep the uplink clear during passes with scheduled mode changes. For the week of 31Mar-6Apr 2018, the following mode changes are scheduled: Approximately 0155UTC 1Apr we will enable the L band uplink for ~24 hours Approximately 1650UTC 5Apr we will enable the VT camera and high-speed data for ~40 minutes. Please be ready to copy high-speed data with FoxTelem, and keep the uplink clear at 1650UTC. All other times the U/v repeater will be open continuously. [ANS thanks Drew, KO4MA, for the above information] --------------------------------------------------------------------- Russian SSTV Transmission Events Planned ARISS Russia is planning Slow Scan Television (SSTV) transmissions from the International Space Station. The transmissions are scheduled to occur over Moscow on April 2, 2018 from 15:05 through 18:30 UTC and on April 3, 2018 from 14:15 through 18:40 UTC. The MAI-75 experiment uses a computer on the ISS Russian Segment, which stores images that are then transmitted to Earth using the amateur radio, specifically the onboard Kenwood TM D710E transceiver. Images received can be posted and viewed at http://www.spaceflightsoftware.com/ARISS_SSTV/index.php .The transmissions will be broadcast at 145.800 MHz using the PD-120 SSTV mode. Please note that the event is dependent on other activities, schedules and crew responsibilities on the ISS and are subject to change at any time. Please check for news and the most current information on the AMSAT.org and ARISS.org websites, the AMSAT-BB(a)amsat.org, the ARISS facebook at Amateur Radio On The International Space Station (ARISS) and ARISS twitter @ARISS_status. For more information, see www.ariss.org. Also join us on Facebook: Amateur Radio on the International Space Station (ARISS) Follow us on Twitter: ARISS_status [ANS thanks Dave, AA4KN, for the above information] --------------------------------------------------------------------- AMSAT at the 2018 Hamvention -- Call for volunteers The 2018 Hamvention will be held on May 18-20, 2018 at Greene County Fairground and Expo Center in Xenia Ohio. Planning is under way for AMSAT's participation! Phil, W1EME, AMSAT's Hamvention Team Leader is looking for team leaders to assist him. If you can help please consider leading in one of the unfilled positions atw1eme at amsat.org < http://www.amsat.org/mailman/listinfo/ans> + Volunteer Assistant + Publicity Assistant - JoAnne K9JKM + Forum Assistant - Keith KB1SF + Sales Assistant + Outdoor Demo Assistant - Paul N8HM + Facilities and Setup Assistant We need as many volunteers as possible to help staff the AMSAT booth during the Hamvention Last year, we had about 40 people assist with the AMSAT booth at the Hamvention. It was the efforts of those volunteers that made the 2017 Hamvention a success for AMSAT. 1. May 17 - Booth setup on Thursday. 2. May 18, 19, 20 - Staff the booth during Hamvention hours to answer questions, enroll members, indoor demos, merchandise and book sales. (We will train you!) 3. May 20 - Booth teardown on Sunday The interaction with AMSAT members, satellite operators, designers, and builders makes the whole experience a lot of fun. Whether you're available for only a couple of hours or if you can spend the entire weekend with us, your help would be greatly appreciated. Interested hams should contact Team Leader Phil Smith via email at: w1eme at amsat.org <http://www.amsat.org/mailman/listinfo/ans> for information. [ANS thanks AMSAT Hamvention Publicity Assistant JoAnne Maenpaa, K9JKM for the above information] --------------------------------------------------------------------- AMSAT-UK Call for Speakers for Colloquium 2018 This is a call for speakers for the AMSAT-UK International Space Colloquium 2018 which, will be held this year on 13-14 October, in conjunction with the RSGB Convention at Kents Hill Park Conference Centre, Milton Keynes, MK7 6BZ, United Kingdom . AMSAT-UK invites speakers, to cover topics about Amateur satellites, CubeSats, Nanosats, space and associated activities, for this event. They are also invited to submit papers for subsequent publishing on the AMSAT-UK web site or in Oscar News. We appreciate that it is not always possible to give a firm indication of attendance at this stage but expressions of interest would be appreciated. Submissions should be sent via e-mail to: dave(a)g4dpz.me.uk AMSAT-UK also invite anyone with requests for Program Topics to submit them as soon as possible to G4DPZ. Invitations for any papers on specific subjects will be included in the future call. Likewise if anyone knows of a good speaker, please send contact and other information to G4DPZ. [ANS thanks Dave, G4DPZ, for the above information] --------------------------------------------------------------------- Upcoming ARISS Contact and Event Schedule Valday, Russia, direct via TBD The ISS callsign is presently scheduled to be RSØISS The scheduled astronaut is Oleg Artemyev Contact is a go for 2018-04-04 TBD UTC Vologda, Russia, direct via TBD The ISS callsign is presently scheduled to be RSØISS The scheduled astronaut is Oleg Artemyev Contact is a go for 2018-04-10 13:37 UTC Watch for SSTV 2018-04-02 15:05 UTC to 18:30 UTC 2018-04-03 14:15 UTC to 18:40 UTC 2018-04-12 to 2018-04-14 Additional information can be found at http://ariss-sstv.blogspot.com/ [ANS thanks Charlie, AJ9N, for the above information] --------------------------------------------------------------------- Athenoxat-1 QSL Card Challenge The Athenoxat-1 project team has implemented an interesting experiment (puzzle) where frames containing fragments of images of QSL cards are periodically transmitted by the satellite. Amateurs can participate in the experiment by receiving the fragments and sending KISS files via email to the Athenoxsat-1 project team. The frames will then be processed and the results will posted in their web site with acknowledgements to the participating stations. AMSAT-BR would like to encourage amateurs to participate. Due to the satellite orbit inclination (15 degrees), only locations with latitudes below the tropics will be able to receive signals from the satellite on 437.485 MHz. Signals can be demodulated using UZ7HO’s high speed soundmodem software (using the GOMX-1 4800 bps demodulator). The project website is: http://www.micro-space.org/ham.html [ANS thanks AMSAT-UK and Yesie, 9V1SQ, for the above information] --------------------------------------------------------------------- /EX In addition to regular membership, AMSAT offers membership in the President's Club. Members of the President's Club, as sustaining donors to AMSAT Project Funds, will be eligible to receive addi- tional benefits. Application forms are available from the AMSAT Office. Primary and secondary school students are eligible for membership at one-half the standard yearly rate. Post-secondary school students enrolled in at least half time status shall be eligible for the stu- dent rate for a maximum of 6 post-secondary years in this status. Contact Martha at the AMSAT Office for additional student membership information. 73, This week's ANS Editor, Lee McLamb, KT4TZ kt4tz at amsat dot org

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:Re: Any amateur satellites above 70cm band (microwave bands) ?
by MICHAEL WILLIAMS 31 Mar '18

31 Mar '18

DTUSat-2 (object 40030) is operating at 2401.835 MHz sending a full or partial beacon every 30 seconds. Since the Doppler is 100 KHz over the entire pass, it's tricky copying it with a traditional receiver such as an FT-847 (Doppler correction has to be right on). It's best seen with a SDR. Since its batteries are dead, it signals cannot be heard in eclipse. Its in an almost perfect polar orbit and can be copied around noon daily everywhere on earth. It is listed in the AMSAT keps and pass predictions. Also see http://wakky.asablo.jp/blog/ Also, I've heard that the ISS sends out a very strong video carrier at 2395 MHz (my converter will not tune that low). I asked a ham in Italy to check it out and he indicated it is always on. I hope this helps. Mike (K9QHO)

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Re: [amsat-bb] Tiangong Re-entry on Heavens bove
by Ted Krempa 31 Mar '18

31 Mar '18

Hi Bob, do you know the object number by chance? Thanks Ted K7TRK -----Original Message----- From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Robert Bruninga Sent: Saturday, March 31, 2018 9:16 AM To: amsat bb Cc: TAPR APRS Mailing List Subject: [amsat-bb] Tiangong Re-enetry on Heavens bove You can see the live track of Taengong to re-enter in the next 24 hours on http://www.heavens-above.com/ Just remember, as it suffers increased drag, it will speed up and be ahead of classic predictions. But at least you can see when you are under the orbit as to whether it is worth going outside. I 'd go out several minutes before the prediction since we dont know how quickly they are updating the elements as it speeds up. and even if it is daytime, you will see it if it comes in in your area... Bob _______________________________________________ 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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AO-92 L-band ON 0157utc 31 March 2018
by Mark L. Hammond 31 Mar '18

31 Mar '18

We're in L-band for about 24 hours. Enjoy! 73, Mark L. Hammond [N8MH]

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Re: [amsat-bb] Tiangong Re-entry on Heavens above
by Ted Krempa 31 Mar '18

31 Mar '18

A much better representation of the object, IMHO, is found here: http://www.n2yo.com/satellite/?s=37820#results and the object number is 37820 according to this site 73, Ted K7TRK -----Original Message----- From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Robert Bruninga Sent: Saturday, March 31, 2018 5:55 PM To: amsat bb Cc: TAPR APRS Mailing List Subject: Re: [amsat-bb] Tiangong Re-entry on Heavens bove > Hi Bob, do you know the object number by chance? No, but this link shows that the higher probabilities or re-entry are between about 38 to 43 degree latitudes north and south. https://www.theguardian.com/science/2018/mar/30/chinas-tiangong-1-space-st ation-will-crash-to-earth-this-weekend Im not sure why those would be slightly higher. 43 degrees is its maximum excursion (matches its inclination)... Maybe its because as it passes over the equatorial bulge, it sees the higher drag and that will start the demise which will occur then 20 minutes later? Bob -----Original Message----- From: Robert Bruninga Sent: Saturday, March 31, 2018 9:16 AM Subject: [amsat-bb] Tiangong Re-enetry on Heavens bove You can see the live track of Taengong to re-enter in the next 24 hours on http://www.heavens-above.com/ Just remember, as it suffers increased drag, it will speed up and be ahead of classic predictions. But at least you can see when you are under the orbit as to whether it is worth going outside. I 'd go out several minutes before the prediction since we dont know how quickly they are updating the elements as it speeds up. and even if it is daytime, you will see it if it comes in in your area... Bob _______________________________________________ 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

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CTCSS Sat Tone Operation
by CEE 31 Mar '18

31 Mar '18

/ /As noted in a previous e-mail, there is usually enough people operating these birds to keep the transmit window open. I have recently resurrected, for Easter, an ancient Kenwood TS-9500, a 435 MHz Sat radio. While reading this topic, I suddenly realized that there was no CTCSS technology in this radio, but I could never tell while on air, on SO-50, AO-91, or AO-92, today! This is not meant to discourage people adding the tiny and affordable CTCSS generator to an older radio. This reflector is a great source of information to learn and accomplish this .....it's all for fun? Chuck - N7BFO //

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