December 2023 - AMSAT-BB - mailman.amsat.org

Remarkable NY Times Graphics of Earth Sats
by Martin Davidoff 28 Dec '23

28 Dec '23

I just came across a New York Times article that contains some remarkable (gross understatement) Graphics of Satellites currently orbiting earth. The section that mentions Martin Sweeting (G3YJO) and his work at University of Surrey brings back lots of memories. As a NYT subscriber I can attach the following link but it may be limited to the first few users who access it. Martin Davidoff (K2UBC) https://www.nytimes.com/interactive/2023/07/28/business/starlink.html?unloc…

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Re: Upcoming ARISS Contact Schedule as of 2023-12-28 02:30 UTC
by Steve Kristoff 28 Dec '23

28 Dec '23

A special sarcastic Thank You to the folks who were on the ARISS repeater this morning in the middle of the SSTV experiment. Steve AI9IN From: "Charlie Sufana via AMSAT-BB" <amsat-bb(a)amsat.org> To: "amsat-bb" <amsat-bb(a)amsat.org> Sent: Wednesday, December 27, 2023 10:11:18 PM Subject: [AMSAT-BB] Upcoming ARISS Contact Schedule as of 2023-12-28 02:30 UTC Upcoming ARISS Contact Schedule as of 2023-12-28 02:30 UTC Amateur Radio on the International Space Station (ARISS) announces a special SSTV experiment to be held this week. The ISS Voice Repeater will be our downlink and several ARISS selected ground stations around the world will serve as SSTV uplink stations. Two special images will be sent on 437.800 MHz using PD120 formatting. (***) This limited experiment will be conducted on several passes over Europe, Australia and the USA between Wednesday Dec. 27 to Saturday Dec. 30, 2023. We appreciate all hams holding off from using the repeater for voice contacts during the event. Watch [ http://www.ariss.org/ | www.ariss.org ] and ARISS social for pass information and more beginning on Tuesday Dec. 26.

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Upcoming ARISS Contact Schedule as of 2023-12-28 02:30 UTC
by aj9n＠aol.com 28 Dec '23

28 Dec '23

Upcoming ARISS Contact Schedule as of 2023-12-28 02:30 UTC Quick list of scheduled contacts and events: TBD No contacts have been scheduled from 2023-12-21 to 2024-01-14. Amateur Radio on the International Space Station (ARISS) announces a special SSTV experiment to be held this week. The ISS Voice Repeater will be our downlink and several ARISS selected ground stations around the world will serve as SSTV uplink stations. Two special images will be sent on 437.800 MHz using PD120 formatting. (***) This limited experiment will be conducted on several passes over Europe, Australia and the USA between Wednesday Dec. 27 to Saturday Dec. 30, 2023. We hope radio enthusiasts will download the images and follow along with the event. We appreciate all hams holding off from using the repeater for voice contacts during the event. Watch www.ariss.org and ARISS social for pass information and more beginning on Tuesday Dec. 26. Here are some tips that might help: (***) 1. Make sure that you use the latest Kep data. 2. Do correct for the Doppler shift. At 70cm, the Doppler shift is about +/- 10kHz. 3. Open up the squelch so that you can hear the faintest of signals. 4. There is no PL used on the downlink frequency of 437.800 MHz. So make sure to turn off a receive PL if you are using one. 5. For this experiment, the crossband repeater is being used. ARISS ground stations are transmitting the SSTV signals to the ISS. Since the repeater is being used and FM capture effect is fully in play (the strongest signal wins, even momentarily), it is possible if someone didn’t get the memo about the SSTV event to transmit and step on the ARISS station. The crossband repeater continues to be active. If any crewmember is so inclined, all they have to do is pick up the microphone, raise the volume up, and talk on the crossband repeater. So give a listen, you just never 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 2023-12-27 02:30 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. https://www.amsat.org/amsat/ariss/news/arissnews.rtf https://www.amsat.org/amsat/ariss/news/arissnews.txt The successful school list has been updated as of 2023-12-14 18:00 UTC. https://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf ####################################################################################################################################### Comments on making general contacts I have been seeing a lot of traffic on Facebook and I suspect on other social media sites with people asking why they are not hearing the crew make general contacts. First off the crew is very busy on the ISS and they simply may not have the time to just pick up the microphone and talk. Also, one needs to be aware of their normal daily schedule. I have listed below the constraints that we at ARISS have to follow in order to schedule the school contacts. Hopefully this will help you better schedule your opportunities. Typical daily schedule Wakeup to Workday start= 1.5 hours Workday start to Workday end=12 hours Workday end to Sleep= 2 hours Sleep to wakeup= 8.5 hours The crew's usual waking period is 07:30 – 19:30 UTC. The most common times to find a crew member making casual periods are about one hour after waking up and about an hour before sleeping, when they have personal time. They're usually free most of the weekend, as well. SSTV events are not that often. So please check out https://www.ariss.org/ for the latest information or watch for the ARISS announcements. And don’t forget that the packet system is sometimes active. Check the status at https://www.ariss.org/ or http://www.issfanclub.eu to see if the packet system is active or not. As always, if there is an EVA, a docking, or an undocking; the ARISS radios are turned off as part of the safety protocol. The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The latest list of frequencies in use can be found at https://www.ariss.org/contact-the-iss.html ######################################################################################################################################## A multi-point telebridge contact means that each student will be on the telebridge from their own home. **************************************************************************************************************************************** ARISS is very aware of the impact that COVID-19 is having on schools and the public in general. As such, we may have last minute cancellations or postponements of school contacts. As always, I will try to provide everyone with near-real-time updates. Watch for future COVID-19 related announcements at https://www.ariss.org/ The following schools have now been postponed or cancelled due to COVID-19: Postponed: No new schools Cancelled: No new schools **************************************************************************************************************************************** The ARISS webpage is at https://www.ariss.org/ Note that there are links to other ARISS websites from this site. The main page for Applying to Host a Scheduled Contact may be found at https://www.ariss.org/apply-to-host-an-ariss-contact.html +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (United States) Call for Proposals The next proposal window for US schools and educational organizations to host an Amateur Radio contact with a crew member on board the ISS opens October 1, 2023 for contacts to be scheduled for July 1, 2024 – December 31, 2024. This proposal is due to ARISS by November 10, 2023 at 11:59 PM Pacific Time. Proposal information and more details such as expectations, proposal guidelines and the proposal form can be found at www.ariss.org. An ARISS Introductory Webinar session will be held on October 5 2023 at 7 PM ET. The Eventbrite link to sign up is: https://ariss-proposal-webinar-fall-2023.eventbrite.com Find more information and proposal instructions, visit the ARISS-USA website at: https://ariss-usa.org/hosting-an-ariss-contact-in-the-usa/ Please direct any questions to ariss.us.education(a)gmail.com. For future proposal information and more details such as expectations, proposal guidelines and proposal form, and dates and times of Information Webinars, go to www.ariss.org. 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 ISS National Lab and National Aeronautics and Space Administration (NASA). The primary goal of ARISS is to promote exploration of science, technology, engineering, and mathematics (STEAM) topics by organizing scheduled contacts via amateur radio between crew members aboard the ISS and students in classrooms or public forms. Before and during these radio contacts, students, educators, parents, and communities learn about space, space technologies, and amateur radio. For more information, see www.ariss.org. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 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, go to: https://www.ariss.org/ariss-application.html. ARISS-Canada and the Americas, except USA: Steve McFarlane, VE3TBD email to: ve3tbd(a)gmail.com ARISS-Japan, Asia, Pacific and Australia: Satoshi Yasuda, 7M3TJZ email to: ariss(a)iaru-r3.org, Japan Amateur Radio League (JARL) https://www.jarl.org/ ARISS-Russia: Soyuz Radioljubitelei Rossii (SRR) https://srr.ru/ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 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 unless otherwise noted. ******************************************************************************* 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 https://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? Please note that the HamTV system has been brought back to earth for troubleshooting. Please monitor ARISS-EU or ARISS-ON for the very latest news on the troubleshooting efforts. 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 The HamTV webpage: https://www.amsat-on.be/hamtv-summary/ **************************************************************************** ARISS congratulates the following mentors who have now mentored over 100 schools: Sergey RV3DR with 220 Francesco IKØWGF with 152 Satoshi 7M3TJZ with 150 Gaston ON4WF with 124 Peter IN3GHZ with 118 Steve VE3TBD with 106 **************************************************************************** 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. Total number of ARISS ISS to earth school events is 1683. Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1589. Each contact may have multiple schools sharing the same time slot. Total number of ARISS supported terrestrial contacts is 48. Please feel free to contact me if more detailed statistics are needed. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ The following US states and entities have never had an ARISS contact: South Dakota, American Samoa, Guam, Northern Marianas Islands, and the Virgin Islands. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ QSL information may be found at: https://www.ariss.org/qsl-cards.html ISS callsigns: DPØISS, FXØISS, GB1SS, IRØISS, NA1SS, OR4ISS, RSØISS **************************************************************************** Frequency chart for packet, voice, and crossband repeater modes showing Doppler correction as of 2005-07-29 04:00 UTC https://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correcti… Check out the Zoho reports of the ARISS contacts https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415 **************************************************************************** SpaceX Crew-7 on orbit Jasmin Moghbeli KI5WSL Andreas Mogensen KG5GCZ Satoshi Furukawa Konstantin Borisov Exp. 70 on orbit Oleg Kononenko Nikolay Chub Loral O’Hara KI5TOM **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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Re: Yaesu g 5500 rotator
by Pat Kilroy 27 Dec '23

27 Dec '23

Silly question? Are you sure that it is the Yaesu motor that failed and NOT the bearings? I must ask because I saved a bundle when I had to replace the bearings a few years ago. I took the opportunity to clean out the inside of the housing and repack the bearings with LOW TEMPERATURE grease. The rotators have been working like in mint condition ever since! Cheers, Pat N8PK Sykesville, Md. On Wed, Dec 27, 2023 at 4:22 PM mikflathead--- via AMSAT-BB < amsat-bb(a)amsat.org> wrote: > I believe someone commented they rewound there motor. Not sure how hard > that would be. > > On Wednesday, December 27, 2023 at 04:06:46 PM EST, nick via AMSAT-BB < > amsat-bb(a)amsat.org> wrote: > > > I have a bad elevation motor on my g5500 rotator. Yaesu is out of stock > will one of the other motors from a different model work? Is there any > other source for motors other than Yaesu? > > > > ----------------------------------------------------------- > > 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. > Acceptable Use and Privacy Policies available at > https://www.amsat.org/about-amsat/ > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/[email protected] > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org > > ----------------------------------------------------------- > > 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. > Acceptable Use and Privacy Policies available at > https://www.amsat.org/about-amsat/ > > View archives of this mailing list at > https://mailman.amsat.org/hyperkitty/list/[email protected] > To unsubscribe send an email to amsat-bb-leave(a)amsat.org > Manage all of your AMSAT-NA mailing list preferences at > https://mailman.amsat.org

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Re: Yaesu g 5500 rotator
by J. Hunt 27 Dec '23

27 Dec '23

Hi everyone, Would like to share a technical note.The Yaesu G5500 is a fine rotor, but not weather sealed. The two metal shells are clamped together and will leak. I have taken apart other failed rotors, always the same problem - water ingress. I sealed mine up prior installation. Thanks n 73,JamesKI5DQ On Wednesday, December 27, 2023 at 04:30:55 PM CST, Curt Pikschus via AMSAT-BB <amsat-bb(a)amsat.org> wrote: Depending on if yours is the AC or DC version, HRO has plenty of the AC version Yaesu elevation replacement motors.I have purchased them in the past and they work well. 73 Curt N0GVK On Dec 27, 2023, at 3:23 PM, mikflathead--- via AMSAT-BB <amsat-bb(a)amsat.org> wrote: I believe someone commented they rewound there motor. Not sure how hard that would be. On Wednesday, December 27, 2023 at 04:06:46 PM EST, nick via AMSAT-BB <amsat-bb(a)amsat.org> wrote: I have a bad elevation motor on my g5500 rotator. Yaesu is out of stock will one of the other motors from a different model work? Is there any other source for motors other than Yaesu? ----------------------------------------------------------- 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. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/[email protected] To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org ----------------------------------------------------------- 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. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/[email protected] To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org ----------------------------------------------------------- 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. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/[email protected] To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org

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Re: Yaesu g 5500 rotator
by Curt Pikschus 27 Dec '23

27 Dec '23

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Re: Yaesu g 5500 rotator
by mikflathead＠aol.com 27 Dec '23

27 Dec '23

I believe someone commented they rewound there motor. Not sure how hard that would be. On Wednesday, December 27, 2023 at 04:06:46 PM EST, nick via AMSAT-BB <amsat-bb(a)amsat.org> wrote: I have a bad elevation motor on my g5500 rotator. Yaesu is out of stock will one of the other motors from a different model work? Is there any other source for motors other than Yaesu? ----------------------------------------------------------- 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. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/ View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/[email protected] To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org

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Yaesu g 5500 rotator
by nick 27 Dec '23

27 Dec '23

I have a bad elevation motor on my g5500 rotator. Yaesu is out of stock will one of the other motors from a different model work? Is there any other source for motors other than Yaesu?

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TEVEL-3
by david.greenberg 27 Dec '23

27 Dec '23

Hello All, TEVEL-3 FM transponder has been activated, starting from today, 27.12.23 19:35U for 72 hours.73,David 4X1DGנשלח מה-Galaxy שלי

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ARISS News Release No. 23-67
by David Jordan 27 Dec '23

27 Dec '23

ARISS News Release No.23-67 Dave Jordan, AA4KN ARISS PR aa4kn(a)amsat.org FORIMMEDIATE RELEASE Six US Schools Moved Forward inARISS Selection Process December27, 2023: Amateur Radio on the International Space Station (ARISS) is pleasedto announce the schools/host organizations selected for the July-December 2024 window.A total of 6 of the submitted proposals during the recent proposal window havebeen accepted to move forward in the processes of planning to host a scheduledamateur radio contact with crew on the ISS. The primary goal of the ARISSprogram is to engage young people in Science, Technology, Engineering, Arts andMath (STEAM) activities and raise their awareness of space communications,radio communications, space exploration, and related areas of study and careerpossibilities. TheARISS program anticipates that NASA will be able to provide schedulingopportunities for the 6 US host organizations during the July-December 2024 timeperiod. They are now at work completing an acceptable equipment plan thatdemonstrates their ability to execute the ham radio contact. Once theirequipment plan is approved by ARISS, the final selected schools/organizationswill be scheduled as their availability and flexibility match up with thescheduling opportunities offered by NASA. Theschools and host organizations are: | Coastal Community School | Satellite Beach, FL | | Computer Museum of America | Roswell, GA | | Kopernik Observatory | Vestal, NY | | Immaculate Heart of Mary School | Wayne, NJ | | Magnet Innovation Center | Inlet Beach, FL | | Midlands STEM Charter School | Winnsboro, SC | Amateur Radio on the InternationalSpace Station (ARISS) is a cooperative venture of international amateur radiosocieties and the space agencies that support the International Space Station(ISS). In the United States, sponsors are the American Radio Relay League(ARRL), Amateur Radio Digital Communications (ARDC), Radio Amateur SatelliteCorporation (AMSAT), NASA’s Space Communications and Navigation program (SCaN)and the ISS National Lab—Space Station Explorers. The primary goal of ARISS isto promote exploration of science, technology, engineering, the arts, and mathematicstopics. ARISS does this by organizing scheduled contacts via amateur radiobetween crew members aboard the ISS and students. Before and during these radiocontacts, students, educators, parents, and communities take part in hands-onlearning activities tied to space, space technologies, and amateur radio. Formore information, see http://www.ariss.org . MediaContact: DaveJordan, AA4KN ARISSPR Findus on social media at: Twitter:ARISS_Intl Facebook:facebook.com/ARISSIntl Instagram:ariss_intl Mastodon:[email protected] Checkout ARISS on Youtube.com.

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