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

Re: Waterproofing antenna-mounted pre-amps
by Zach Metzinger 08 Feb '23

08 Feb '23

On 2/7/23 17:58, Joseph Amato via AMSAT-BB wrote: > I recently built two low noise amplifiers (2 m and 70 cm) for > satellite work, hoping to mount them right at the antennas. They are > in small Hammond die cast aluminum boxes. To mount the boards > inside, I had to drill several 4-40 thru holes through each box. I’m > worried about slow water seepage through these screw holes. Can you > suggest a good way to seal them? Hello Joseph, Instead of drilling holes in the box for screws, I've used 1/2" standoffs (threaded) and JB-Weld-ed them to the bottom of the box. Rough up the general area where the standoffs will go in the box when attached to the board and then screw the standoffs to your board. Use that as an approximate template as to where they'll hit inside the box and mark that with an indelible marker. Remove the board and put a generous glob of JB-W in those four locations. Then put your board in, submerging the standoffs in the JB-W. Let the whole assembly sit, undisturbed, overnight. It will be nearly impossible to remove those standoffs from the box, but you can easily unscrew the PCB for servicing. Also, you have to assume that any sealed box is not perfect and that you'll eventually get some moisture inside of it. So, I drill a small weep hole (1/8") in the side which will face down and cover it with window screen on the inside to keep out the spiders, etc. That will allow the box to breathe. I have an SGC ATU (CPVC/fiberglass box) and several other projects outside which have had this treatment. They've all survived for more than a decade with no observable corrosion or water inside the box. Might I ask: Which LNAs did you build? 73, --- Zach N0ZGO

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Re: Waterproofing antenna-mounted pre-amps
by mikflathead＠aol.com 08 Feb '23

08 Feb '23

Do these have any switching in them? That would change the enclosure. I have both of mine in a plastic electrical box mounted at the top of the tower. -----Original Message----- From: Joseph Amato via AMSAT-BB <amsat-bb(a)amsat.org> To: amsat-bb(a)amsat.org Sent: Tue, Feb 7, 2023 6:59 pm Subject: [AMSAT-BB] Waterproofing antenna-mounted pre-amps I recently built two low noise amplifiers (2 m and 70 cm) for satellite work, hoping to mount them right at the antennas. They are in small Hammond die cast aluminum boxes. To mount the boards inside, I had to drill several 4-40 thru holes through each box. I’m worried about slow water seepage through these screw holes. Can you suggest a good way to seal them? Thanks! Joe K1MNY ----------------------------------------------------------- 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: Waterproofing antenna-mounted pre-amps
by Nitin Muttin 08 Feb '23

08 Feb '23

Mast mountable enclosures are available https://store.uputronics.com/index.php?route=product/product&path=63&produc… 73 Nitin [VU3TYG] On Wednesday, 8 February, 2023 at 10:32:20 am IST, Clint Bradford via AMSAT-BB <amsat-bb(a)amsat.org> wrote: Something like these? | | | | PZRT 25pcs EPDM Neoprene Rubber Bonded Sealing Washers, 304 Stainless Steel M6.3 x 16MM Waterproof Gasketa.co | | On Feb 7, 2023, at 3:58 PM, Joseph Amato via AMSAT-BB <amsat-bb(a)amsat.org> wrote: I recently built two low noise amplifiers (2 m and 70 cm) for satellite work, hoping to mount them right at the antennas. They are in small Hammond die cast aluminum boxes. To mount the boards inside, I had to drill several 4-40 thru holes through each box. I’m worried about slow water seepage through these screw holes. Can you suggest a good way to seal them? Thanks! Joe K1MNY ----------------------------------------------------------- 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: Waterproofing antenna-mounted pre-amps
by Clint Bradford 08 Feb '23

08 Feb '23

Something like these? https://a.co/d/7DGkUd0 PZRT 25pcs EPDM Neoprene Rubber Bonded Sealing Washers, 304 Stainless Steel M6.3 x 16MM Waterproof Gasket a.co > On Feb 7, 2023, at 3:58 PM, Joseph Amato via AMSAT-BB <amsat-bb(a)amsat.org> wrote: > > I recently built two low noise amplifiers (2 m and 70 cm) for satellite work, hoping to mount them right at the antennas. They are in small Hammond die cast aluminum boxes. To mount the boards inside, I had to drill several 4-40 thru holes through each box. I’m worried about slow water seepage through these screw holes. Can you suggest a good way to seal them? > > Thanks! > > Joe > K1MNY > > ----------------------------------------------------------- > > 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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Waterproofing antenna-mounted pre-amps
by Joseph Amato 07 Feb '23

07 Feb '23

I recently built two low noise amplifiers (2 m and 70 cm) for satellite work, hoping to mount them right at the antennas. They are in small Hammond die cast aluminum boxes. To mount the boards inside, I had to drill several 4-40 thru holes through each box. I’m worried about slow water seepage through these screw holes. Can you suggest a good way to seal them? Thanks! Joe K1MNY

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Upcoming ARISS Contact Schedule as of 2023-02-07 22:30 UTC
by aj9n＠aol.com 07 Feb '23

07 Feb '23

Upcoming ARISS Contact Schedule as of 2023-02-07 22:30 UTC Quick list of scheduled contacts and events: Cache County School District, Millville, UT, direct via W7IVM The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information or on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Josh Cassada KI5CRH Contact was successful for: Tue 2023-02-07 18:45:54 UTC 32 deg (***) Congratulations to the Cache County School District students and Josh! (***) Both of these links have a link to the actual contact Livestream. Astronomy students prepare to talk live with an astronaut on the International Space Station The PodCACHE: Making Contact with the International Space Station Or you can watch at the ARISS channel https://www.youtube.com/channel/UCxm5Ca2y0HD_NxXlZWXv11A Colegio Diocesano Santa María Nuestra Señora, Écija, Spain, telebridge via IK1SLD The ISS callsign is presently scheduled to be OR4ISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Josh Cassada KI5CRH Contact is go for: Wed 2023-02-08 10:13:59 UTC 74 deg Starting about 15 minutes before AOS, watch for Livestream at http://www.ariotti.com/. They are also streaming at https://www.youtube.com/watch?v=7nYFP7qzUtk School No. 547, St. Petersburg, Russia, direct via TBD The ISS callsign is presently scheduled to be RSØISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Sergey Prokopyev Contact is go for 2023-02-13 09:35 UTC Gymnasium Christian-Ernestinum, Bayreuth, Germany, direct via DKØBT The ISS callsign is presently scheduled to be OR4ISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Koichi Wakata KI5TMN Contact is go for: Tue 2023-02-14 10:20:12 UTC 64 deg Predicted times drifting earlier by about 4 minutes at this time. This contact will be using the Kenwood radio located in the Service Module. Stella Maris College, Gzira, Malta, direct via 9H1MRL The ISS callsign is presently scheduled to be OR4ISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Josh Cassada KI5CRH Contact is go: Wed 2023-02-15 12:48:01 UTC 60 deg Predicted times drifting earlier by about 4 minutes at this time. Watch for Livestream at https://www.youtube.com/watch?v=fk-Onkbr6PY 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 2023-02-07 22:30 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 2023-02-07 22:30 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 0730 - 1930 UTC. The most common times to find a crew member making casual periods are about one hour after waking and 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 active. 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 February 20, 2023 for contacts to be scheduled for January 1, 2024 – June 30, 2024. This proposal is due to ARISS by March 31, 2023 at 11:59 PM Pacific Time. (***) 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 195 Francesco IKØWGF with 149 Satoshi 7M3TJZ with 148 Gaston ON4WF with 124 Peter IN3GHZ with 115 Steve VE3TBD with 103 **************************************************************************** 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 1603. (***) Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1512. (***) 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 **************************************************************************** Exp. 68 on orbit Sergey Prokopyev Francisco Rubio Dimitri Petelin SpaceX Crew-5 on orbit Josh Cassada KI5CRH Nicole Mann Anna Kikina Koichi Wakata KI5TMN **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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Re: Detail on Cache district school contact
by aj9n＠aol.com 07 Feb '23

07 Feb '23

The contact went very well and if you watched the YouTube feed you were able to see the kids. So when can we expect to see a school proposal come from the Oregon area? Here is the latest info as found on the ARISS webpage at https://www.ariss.org: ARISS Contact Proposals (U.S. only) 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 February 20, 2023 for contacts to be scheduled for January 1, 2024 – June 30, 2024. This proposal is due to ARISS by March 31, 2023 at 11:59 PM Pacific Time. Find more information and proposal instructions, visit the ARISS-USA website at: https://ariss-usa.org/hosting-an-ariss-contact-in-the-usa/ 73,Charlie AJ9NOne of the ARISS mentors In a message dated 2023-02-07 15:18:48 Eastern Standard Time, amsat-bb(a)amsat.org writes: Thanks to everyone for their responses to this. It helped to make for an excellent demonstration to my co-workers as well as some of their kids at Intel over in Hillsboro, OR. 73s,LorenK7IW On Tue, Feb 7, 2023 at 7:39 AM Nico Janssen via AMSAT-BB <amsat-bb(a)amsat.org> wrote: Note that fresh TLEs for the ISS are published several times per day through Space-Track.org and CelesTrak.org. ISS orbit changes are announced well in advance, e.g. in this file: https://t.co/tB0fiOahKJ (Except of course when a quick emergency maneuver is required to avoid a conjunction.) On February 3 at 10:30 UTC the ISS orbit was raised a couple of kilometers. 73, Nico PA0DLO On 06-02-2023 19:23, Charlie Sufana via AMSAT-BB wrote: Hi Loren and all, The times that are being posted are being given by ARISS to the schools. The schools are to confirm the times themselves using the very latest Kep data that they have acquired on the day of their contact. The schools have to realize that things can change a few minutes plus/minus from what they may have planned for the event. My latest prediction that I get using the very latest files from Celestrak are showing: AOS 18:45:31 UTC LOS 18:56:12 UTC Max elevation 32 degrees. I am using the exact coordinates that the school gave us for where the event is being held. The software I am using for this prediction is Nova. So it looks like your predictions are very close. Like I have said in earlier emails, the times that show up on the AMSAT-BB are really to be thought of as more of a planning/placeholder time. If there is a major change in the contact time, then the bulletins get updated to reflect that change. I have lost count how many times I have done that. Again, I always say to either run your own Keps or to plan on starting to listen about 10 minutes ahead of what gets posted. I don't try to keep the times updated every day; I am simply too busy with all of the ARISS work to do that. If there is something major, then I posted something. Please also note that depending on the local school location versus terrain, the ISS antenna versus the ISS superstructure itself maybe blocking the signal, and a zillion other reasons; the actual conversation might start 30 to 60 seconds beyond predicted AOS. And the contact might end sooner than expected. We have had a few times where the contact actually got started before predicted AOS. So I always recommend to my schools to start calling the ISS 30 to 60 seconds ahead of predicted AOS and to have the squelch fully off so that they can hear the faintest of signals. Believe it or not, you should hear a slight decrease in the background noise as the signal is working towards full quieting but hear no audio just yet. That's when I know we probably got them, they are calling us, but we just don't hear the audio yet. Wait a few more seconds and then there they are. Once a school hears some actual audio, then you can usually sense a big sigh of relief from the audience. Also in my earlier email, I mention that our lead orbital guy is using Kep data that is not in the public domain. So yes, he is getting data from NASA on what is happening and what is planned to happen. As the contact date and time approaches real time, the latest public domain Kep set is what is in command of the actual prediction. And of course, the ISS is the one really in command as to where it is traveling. Hope this helps. 73,Charlie Sufana AJ9NOne of the ARISS mentors In a message dated 2023-02-06 12:06:27 Eastern Standard Time, amsat-bb(a)amsat.org writes: I actually took the time to set the home location to the GPS coordinates of K7IVM as the home location and I took a screen shot from the website when I was preparing last Tuesday. It clearly shows the home location somewhere near Millville, UT and the AOS being 20-30 seconds before 18:42. Pulling up that same pass today, I see the AOS is 18:45:40 and it still shows the house on K7IVM's location near Millville. I'm pretty certain they've updated their prediction, but I'm just not sure if their earlier prediction was based on a less reliable or older source than the original ARISS announcement, or if the ARISS announcement, when it was first written up (since I've never seen the time waiver) was just lucky to be closer to these more recent predictions from N2YO. I'm not sure where they get their information from, but I just found it a curiosity as I can imagine ARISS having access to more insider info like future burns than would be in public TLEs. -LorenK7IW On Sun, Feb 5, 2023, 03:50 Mark Johns, K0JM <k0jm.mark(a)gmail.com> wrote: N2YO is giving you the AOS time for. your location -- assuming you have it set up properly. ARISS is giving the time for the contacting ground station. I'm not sure how much time ARISS schedules after AOS to begin the contact.--Mark D. Johns, KØJM AMSAT Ambassador & News Service Editor Brooklyn Park, MN USA EN35hd-----------------------------------------------"Heaven goes by favor; if it went by merit, you would stay out and your dog would go in." ---Mark Twain On Sun, Feb 5, 2023 at 12:50 AM Loren M. Lang via AMSAT-BB <amsat-bb(a)amsat.org> wrote: Are the questions for Tuesday's ISS School contact posted somewhere or possibly a live feed? Also, I had noticed last week that the beginning of contact time as predicted on N2YO.com was about 4 minutes earlier than the ARISS bulletin had it. Now that it's a few days later, N2YO has an updated AOS time that is much closer to the time on ARISS which hasn't changed. I originally assumed that N2YO would be more accurate than the time posted on a static timeline, but now I'm wondering if ARISS has more insider details than are available from the public TLEs or if N2YO was just using an older data source. -LorenK7IW ----------------------------------------------------------- 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 ----------------------------------------------------------- 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: Detail on Cache district school contact
by Loren M. Lang 07 Feb '23

07 Feb '23

Thanks to everyone for their responses to this. It helped to make for an excellent demonstration to my co-workers as well as some of their kids at Intel over in Hillsboro, OR. 73s, Loren K7IW On Tue, Feb 7, 2023 at 7:39 AM Nico Janssen via AMSAT-BB <amsat-bb(a)amsat.org> wrote: > > Note that fresh TLEs for the ISS are published several times per day > through Space-Track.org and CelesTrak.org. > > ISS orbit changes are announced well in advance, e.g. in this file: > https://t.co/tB0fiOahKJ > (Except of course when a quick emergency maneuver is required to > avoid a conjunction.) > > On February 3 at 10:30 UTC the ISS orbit was raised a couple of > kilometers. > > 73, > Nico PA0DLO > > On 06-02-2023 19:23, Charlie Sufana via AMSAT-BB wrote: > > Hi Loren and all, > > The times that are being posted are being given by ARISS to the schools. > The schools are to confirm the times themselves using the very latest Kep > data that they have acquired on the day of their contact. The schools have > to realize that things can change a few minutes plus/minus from what they > may have planned for the event. > > My latest prediction that I get using the very latest files from Celestrak > are showing: > > AOS 18:45:31 UTC LOS 18:56:12 UTC Max elevation 32 degrees. I am using > the exact coordinates that the school gave us for where the event is being > held. The software I am using for this prediction is Nova. So it looks > like your predictions are very close. > > Like I have said in earlier emails, the times that show up on the AMSAT-BB > are really to be thought of as more of a planning/placeholder time. If > there is a major change in the contact time, then the bulletins get updated > to reflect that change. I have lost count how many times I have done > that. Again, I always say to either run your own Keps or to plan on > starting to listen about 10 minutes ahead of what gets posted. I don't try > to keep the times updated every day; I am simply too busy with all of the > ARISS work to do that. If there is something major, then I posted > something. > > Please also note that depending on the local school location versus > terrain, the ISS antenna versus the ISS superstructure itself maybe > blocking the signal, and a zillion other reasons; the actual conversation > might start 30 to 60 seconds beyond predicted AOS. And the contact might > end sooner than expected. We have had a few times where the contact > actually got started before predicted AOS. So I always recommend to my > schools to start calling the ISS 30 to 60 seconds ahead of predicted AOS > and to have the squelch fully off so that they can hear the faintest of > signals. Believe it or not, you should hear a slight decrease in the > background noise as the signal is working towards full quieting but hear no > audio just yet. That's when I know we probably got them, they are calling > us, but we just don't hear the audio yet. Wait a few more seconds and then > there they are. Once a school hears some actual audio, then you can > usually sense a big sigh of relief from the audience. > > Also in my earlier email, I mention that our lead orbital guy is using Kep > data that is not in the public domain. So yes, he is getting data from > NASA on what is happening and what is planned to happen. As the contact > date and time approaches real time, the latest public domain Kep set is > what is in command of the actual prediction. And of course, the ISS is the > one really in command as to where it is traveling. > > Hope this helps. > > 73, > Charlie Sufana AJ9N > One of the ARISS mentors > > > In a message dated 2023-02-06 12:06:27 Eastern Standard Time, > amsat-bb(a)amsat.org writes: > > > I actually took the time to set the home location to the GPS coordinates > of K7IVM as the home location and I took a screen shot from the website > when I was preparing last Tuesday. It clearly shows the home location > somewhere near Millville, UT and the AOS being 20-30 seconds before 18:42. > Pulling up that same pass today, I see the AOS is 18:45:40 and it still > shows the house on K7IVM's location near Millville. I'm pretty certain > they've updated their prediction, but I'm just not sure if their earlier > prediction was based on a less reliable or older source than the original > ARISS announcement, or if the ARISS announcement, when it was first written > up (since I've never seen the time waiver) was just lucky to be closer to > these more recent predictions from N2YO. I'm not sure where they get their > information from, but I just found it a curiosity as I can imagine ARISS > having access to more insider info like future burns than would be in > public TLEs. > > -Loren > K7IW > > > On Sun, Feb 5, 2023, 03:50 Mark Johns, K0JM <k0jm.mark(a)gmail.com> wrote: > > N2YO is giving you the AOS time for. your location -- assuming you have it > set up properly. ARISS is giving the time for the contacting ground > station. I'm not sure how much time ARISS schedules after AOS to begin the > contact. > -- > Mark D. Johns, KØJM > AMSAT Ambassador & News Service Editor > Brooklyn Park, MN USA EN35hd > ----------------------------------------------- > "Heaven goes by favor; if it went by merit, > you would stay out and your dog would go in." > ---Mark Twain > > On Sun, Feb 5, 2023 at 12:50 AM Loren M. Lang via AMSAT-BB < > amsat-bb(a)amsat.org> wrote: > > Are the questions for Tuesday's ISS School contact posted somewhere or > possibly a live feed? > > Also, I had noticed last week that the beginning of contact time as > predicted on N2YO.com was about 4 minutes earlier than the ARISS bulletin > had it. Now that it's a few days later, N2YO has an updated AOS time that > is much closer to the time on ARISS which hasn't changed. I originally > assumed that N2YO would be more accurate than the time posted on a static > timeline, but now I'm wondering if ARISS has more insider details than are > available from the public TLEs or if N2YO was just using an older data > source. > > -Loren > K7IW > > > ----------------------------------------------------------- > > 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 athttps://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: Detail on Cache district school contact
by Nico Janssen 07 Feb '23

07 Feb '23

Note that fresh TLEs for the ISS are published several times per day through Space-Track.org and CelesTrak.org. ISS orbit changes are announced well in advance, e.g. in this file: https://t.co/tB0fiOahKJ (Except of course when a quick emergency maneuver is required to avoid a conjunction.) On February 3 at 10:30 UTC the ISS orbit was raised a couple of kilometers. 73, Nico PA0DLO On 06-02-2023 19:23, Charlie Sufana via AMSAT-BB wrote: > Hi Loren and all, > The times that are being posted are being given by ARISS to the > schools. The schools are to confirm the times themselves using the > very latest Kep data that they have acquired on the day of their > contact. The schools have to realize that things can change a few > minutes plus/minus from what they may have planned for the event. > My latest prediction that I get using the very latest files from > Celestrak are showing: > AOS 18:45:31 UTC LOS 18:56:12 UTC Max elevation 32 degrees. I am > using the exact coordinates that the school gave us for where the > event is being held. The software I am using for this prediction is > Nova. So it looks like your predictions are very close. > Like I have said in earlier emails, the times that show up on the > AMSAT-BB are really to be thought of as more of a planning/placeholder > time. If there is a major change in the contact time, then the > bulletins get updated to reflect that change. I have lost count how > many times I have done that. Again, I always say to either run your > own Keps or to plan on starting to listen about 10 minutes ahead of > what gets posted. I don't try to keep the times updated every day; I > am simply too busy with all of the ARISS work to do that. If there is > something major, then I posted something. > Please also note that depending on the local school location versus > terrain, the ISS antenna versus the ISS superstructure itself maybe > blocking the signal, and a zillion other reasons; the actual > conversation might start 30 to 60 seconds beyond predicted AOS. And > the contact might end sooner than expected. We have had a few times > where the contact actually got started before predicted AOS. So I > always recommend to my schools to start calling the ISS 30 to 60 > seconds ahead of predicted AOS and to have the squelch fully off so > that they can hear the faintest of signals. Believe it or not, you > should hear a slight decrease in the background noise as the signal is > working towards full quieting but hear no audio just yet. That's when > I know we probably got them, they are calling us, but we just don't > hear the audio yet. Wait a few more seconds and then there they are. > Once a school hears some actual audio, then you can usually sense a > big sigh of relief from the audience. > Also in my earlier email, I mention that our lead orbital guy is using > Kep data that is not in the public domain. So yes, he is getting data > from NASA on what is happening and what is planned to happen. As the > contact date and time approaches real time, the latest public domain > Kep set is what is in command of the actual prediction. And of > course, the ISS is the one really in command as to where it is traveling. > Hope this helps. > 73, > Charlie Sufana AJ9N > One of the ARISS mentors > > In a message dated 2023-02-06 12:06:27 Eastern Standard Time, > amsat-bb(a)amsat.org writes: > > I actually took the time to set the home location to the GPS > coordinates of K7IVM as the home location and I took a screen shot > from the website when I was preparing last Tuesday. It clearly > shows the home location somewhere near Millville, UT and the AOS > being 20-30 seconds before 18:42. Pulling up that same pass today, > I see the AOS is 18:45:40 and it still shows the house on K7IVM's > location near Millville. I'm pretty certain they've updated their > prediction, but I'm just not sure if their earlier prediction was > based on a less reliable or older source than the original ARISS > announcement, or if the ARISS announcement, when it was first > written up (since I've never seen the time waiver) was just lucky > to be closer to these more recent predictions from N2YO. I'm not > sure where they get their information from, but I just found it a > curiosity as I can imagine ARISS having access to more insider > info like future burns than would be in public TLEs. > -Loren > K7IW > > On Sun, Feb 5, 2023, 03:50 Mark Johns, K0JM <k0jm.mark(a)gmail.com> > wrote: > > N2YO is giving you the AOS time for. your location -- assuming > you have it set up properly. ARISS is giving the time for the > contacting ground station. I'm not sure how much time ARISS > schedules after AOS to begin the contact. > -- > Mark D. Johns, KØJM > AMSAT Ambassador & News Service Editor > Brooklyn Park, MN USA EN35hd > ----------------------------------------------- > "Heaven goes by favor; if it went by merit, > you would stay out and your dog would go in." > ---Mark Twain > > On Sun, Feb 5, 2023 at 12:50 AM Loren M. Lang via AMSAT-BB > <amsat-bb(a)amsat.org> wrote: > > Are the questions for Tuesday's ISS School contact posted > somewhere or possibly a live feed? > Also, I had noticed last week that the beginning of > contact time as predicted on N2YO.com <http://N2YO.com> > was about 4 minutes earlier than the ARISS bulletin had > it. Now that it's a few days later, N2YO has an updated > AOS time that is much closer to the time on ARISS which > hasn't changed. I originally assumed that N2YO would be > more accurate than the time posted on a static timeline, > but now I'm wondering if ARISS has more insider details > than are available from the public TLEs or if N2YO was > just using an older data source. > -Loren > K7IW > > ----------------------------------------------------------- > > Sent via AMSAT-BB(a)amsat.org <http://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 > <http://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 athttps://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 athttps://mailman.amsat.org

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Upcoming ARISS Contact Schedule as of 2023-02-06 23:00 UTC
by aj9n＠aol.com 07 Feb '23

07 Feb '23

Upcoming ARISS Contact Schedule as of 2023-02-06 23:00 UTC Quick list of scheduled contacts and events: Cache County School District, Millville, UT, direct via W7IVM The ISS callsign is presently scheduled to be NA1SS The downlink frequency is presently scheduled to be 145.800 MHz The latest information or on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Josh Cassada KI5CRH Contact is go for: Tue 2023-02-07 18:45:54 UTC 32 deg Both of these links have a link to the actual contact Livestream. Astronomy students prepare to talk live with an astronaut on the International Space Station The PodCACHE: Making Contact with the International Space Station Or you can watch at the ARISS channel https://www.youtube.com/channel/UCxm5Ca2y0HD_NxXlZWXv11A Colegio Diocesano Santa María Nuestra Señora, Écija, Spain, telebridge via IK1SLD The ISS callsign is presently scheduled to be OR4ISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Josh Cassada KI5CRH Contact is go for: Wed 2023-02-08 10:13:59 UTC 74 deg Starting about 15 minutes before AOS, watch for Livestream at http://www.ariotti.com/. They are also streaming at https://www.youtube.com/watch?v=7nYFP7qzUtk School No. 547, St. Petersburg, Russia, direct via TBD (***) The ISS callsign is presently scheduled to be RSØISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Sergey Prokopyev (***) Contact is go for 2023-02-13 09:35 UTC (***) Gymnasium Christian-Ernestinum, Bayreuth, Germany, direct via DKØBT The ISS callsign is presently scheduled to be OR4ISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Koichi Wakata KI5TMN (***) Contact is go for: Tue 2023-02-14 10:20:12 UTC 64 deg (***) Predicted times drifting earlier by about 4 minutes at this time. (***) This contact will be using the Kenwood radio located in the Service Module. (***) Stella Maris College, Gzira, Malta, direct via 9H1MRL The ISS callsign is presently scheduled to be OR4ISS The downlink frequency is presently scheduled to be 145.800 MHz The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The scheduled crewmember is Josh Cassada KI5CRH (***) Contact is go: Wed 2023-02-15 12:48:01 UTC 60 deg (***) Predicted times drifting earlier by about 4 minutes at this time. (***) Watch for Livestream at https://www.youtube.com/watch?v=fk-Onkbr6PY 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 2023-02-06 23:00 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. 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 2023-02-06 19:30 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 0730 - 1930 UTC. The most common times to find a crew member making casual periods are about one hour after waking and 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 active. 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 proposal window for US schools and educational organizations to host an Amateur Radio contact with a crew member on board the ISS for contacts to be scheduled for July 1, 2023 – December 31, 2023 has closed. Watch for the next opportunity for proposals for the first half of 2024 sometime in the springtime period of 2023. (***) 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 195 (***) Francesco IKØWGF with 149 Satoshi 7M3TJZ with 148 Gaston ON4WF with 124 Peter IN3GHZ with 115 Steve VE3TBD with 103 **************************************************************************** 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 1602. (***) Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1511. (***) 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 **************************************************************************** Exp. 68 on orbit Sergey Prokopyev Francisco Rubio Dimitri Petelin SpaceX Crew-5 on orbit Josh Cassada KI5CRH Nicole Mann Anna Kikina Koichi Wakata KI5TMN **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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