June 2024 - AMSAT-BB - mailman.amsat.org

Upcoming ARISS Contact Schedule as of 2024-06-27 18:00 UTC
by aj9n＠aol.com 27 Jun '24

27 Jun '24

Upcoming ARISS Contact Schedule as of 2024-06-27 18:00 UTC Quick list of scheduled contacts and events: Complejo Educativo Nuestra Señora de Fátima N° 1139 and N° 8119, Pérez, Argentina, Telebridge via VK6MJ The ISS callsign is presently scheduled to be NA1SS 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 Jeanette Epps KF5QNU The ARISS mentor is VE6JBJ Contact was successful: Thu 2024-06-27 13:38:07 UTC 56 deg (***) Congratulations to the Complejo Educativo Nuestra Señora de Fátima N° 1139 and N° 8119 students, Jeanette, mentor VE6JBJ, and ground station VK6MJ (***) Moroccan School of Engineering Sciences, Casablanca, Morocco, telebridge via VK6MJ The ISS callsign is presently scheduled to be NA1SS 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 Jeanette Epps KF5QNU The ARISS mentor is IN3GHZ Contact is go for: Mon 2024-07-01 12:02:01 UTC 60 deg St. Luke’s College, Buenos Aires, Argentina, direct via LU4AA The ISS callsign is presently scheduled to be NA1SS 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 Mike Barratt KD5MIJ The ARISS mentor is VE6JBJ Contact is go for: Wed 2024-07-03 14:42:53 UTC 82 deg Watch for Livestreaming via their Instagram accounts: The school: @stlukes.college Radio Club Argentino: @rca_sociedad_nacional 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 2024-06-27 18:00 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 2024-06-27 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 April 8, 2024 for contacts to be scheduled for January 1, 2025 – June 30, 2025. This proposal window is due to ARISS by May 19, 2024 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. 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 is back on board but awaiting re-installation. 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 239 Francesco IKØWGF with 154 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 1731. (***) Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1636. (***) 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. 70 on orbit Oleg Kononenko Nikolay Chub Exp. 71 on orbit Tracy E. Caldwell Dyson SpaceX Crew-8 on orbit Matthew Dominick KCØTOR Mike Barratt KD5MIJ Jeanette Epps KF5QNU Aleksandr Grebyonkin RZ3DSE **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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Re: Yaesu G-5500 issue
by mikflathead＠aol.com 26 Jun '24

26 Jun '24

Relooking at the schematic with my readers on I see there are 2 regulators. One for the op amps and one for the voltage that goes to the control pots. On Wednesday, June 26, 2024 at 08:35:59 PM EDT, jeff griffin via AMSAT-BB <amsat-bb(a)amsat.org> wrote: Here's what I'm going to do. I think the one I'm working on is some kind of modified unit. About 10 years ago or so in Florida I was given 5 complete Yaesu G-5500 rotor sets to try and repair in a short time. I think the complete rotor assembly's were from an AMSAT pacsat control station that just flat out wore out rotor assembly's on a monthly basis. I managed to get two of them working. I think this is one of them. Now as I live in three different places it sometimes gets confusing on what came from where, and when. At my QTH here in NJ the one I'm working on is serial number 41820026. The spare one I have here is serial number 20460047. The unit I'm working on had some damage in the area of the LM7806, there is a jumper wire installed due to a damaged trace on the board. There was an LM7812 installed where there was supposed to be a LM7806. This all being said I think I might just try to swap the good power supply from the unit I'm working on to the unit with the bad power supply. So. I'm now looking on a procedure on how to test the main power transformer , I will also look into Q1003 and Q1004, someway to test? All I want to do is get back on the air. Thanks again for all the suggestions... 73 Jeff kb2m ----------------------------------------------------------- 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 issue
by jeff griffin 26 Jun '24

26 Jun '24

Here's what I'm going to do. I think the one I'm working on is some kind of modified unit. About 10 years ago or so in Florida I was given 5 complete Yaesu G-5500 rotor sets to try and repair in a short time. I think the complete rotor assembly's were from an AMSAT pacsat control station that just flat out wore out rotor assembly's on a monthly basis. I managed to get two of them working. I think this is one of them. Now as I live in three different places it sometimes gets confusing on what came from where, and when. At my QTH here in NJ the one I'm working on is serial number 41820026. The spare one I have here is serial number 20460047. The unit I'm working on had some damage in the area of the LM7806, there is a jumper wire installed due to a damaged trace on the board. There was an LM7812 installed where there was supposed to be a LM7806. This all being said I think I might just try to swap the good power supply from the unit I'm working on to the unit with the bad power supply. So. I'm now looking on a procedure on how to test the main power transformer , I will also look into Q1003 and Q1004, someway to test? All I want to do is get back on the air. Thanks again for all the suggestions... 73 Jeff kb2m

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Re: Yaesu G-5500 issue
by aj9n 26 Jun '24

26 Jun '24

Hi Jeff,Have you looked at whether amps Q1003 and Q1004 are blown and maybe giving directly 6 or 12V (whatever it is supposed to be) to the meters? They might be shorted somehow to give full voltage all the time to the meters.What happens if you try to adjust the pots labeled VR0001 and VR0002? The meters should a change as you adjust them.Good luck,Charlie AJ9NSent from my T-Mobile 5G Device -------- Original message --------From: graham shirville via AMSAT-BB <amsat-bb(a)amsat.org> Date: 6/26/24 5:01 PM (GMT-05:00) To: 'jeff griffin' <kb2mjeff(a)att.net>, amsat-bb(a)amsat.org Subject: [AMSAT-BB] Re: Yaesu G-5500 issue Hi Jeff, Well I was assuming that it is the older 5500 model which has an AC motor - this has an instruction manual which shows a 6V regulator (top of circuit diagram).https://www.yaesu.com/downloadFile.cfm?FileID=8814&FileCatID=155&F… Maybe you have the 5500DC model for which they don’t seem to publish the circuit diagram? Although I doubt that they would have changed that part of the circuit 73Graham G3VZV From: jeff griffin via AMSAT-BB <amsat-bb(a)amsat.org> Sent: Wednesday, June 26, 2024 9:44 PMTo: amsat-bb(a)amsat.orgSubject: [AMSAT-BB] Re: Yaesu G-5500 issue Ok. I removed the LM7812 and put in a LM7806. I now have 6v between pin1 and pin3. I also still have full scale on the meters. I tried all the things that were suggested. including the OHM test between wire on pin1 and wire on pin3 500 ohms , and 250 or so between wop2 to wop3 and wop1. SO it looks like the rotor is ok, it still rotates in AZ and EL. I'm going to leave the 6v VR in as my cable runs are only about 30 feet. What to do next. I have two broken G-5500 control boxes here, the one I'm working on, and one with a bad transformer(it blows fuse when turned on). I also have half a working spare rotor, I forget if the AZ or EL is broke. If I send the box into Yaesu to fix, it will with the shipping probably be at least $200. I called Yaesu and they have new G-5500 control boxes for $380. I'm running out of stuff to try with this issue, and there isn't a lot of info to try and dig in any deeper. If I don't come up with anything I think I'm just going to buy a new control box, either the Yaesu or possibly another Green Heron FT-21azel. I'm going to give this another day, I'm hoping someone has had and fixed the same issue. Thanks for the continued help with this... 73 Jeff kb2m

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Re: Yaesu G-5500 issue
by mikflathead＠aol.com 26 Jun '24

26 Jun '24

Looking at the schematic for the 5500 there are 2 op amps that drive the meters. That would be my guess seeing how there is not much more than that. I believe someone else may have mentioned this. Could be a 2 dollar fix? On Wednesday, June 26, 2024 at 04:43:30 PM EDT, jeff griffin via AMSAT-BB <amsat-bb(a)amsat.org> wrote: Ok. I removed the LM7812 and put in a LM7806. I now have 6v between pin1 and pin3. I also still have full scale on the meters. I tried all the things that were suggested. including the OHM test between wire on pin1 and wire on pin3 500 ohms , and 250 or so between wop2 to wop3 and wop1. SO it looks like the rotor is ok, it still rotates in AZ and EL. I'm going to leave the 6v VR in as my cable runs are only about 30 feet. What to do next. I have two broken G-5500 control boxes here, the one I'm working on, and one with a bad transformer(it blows fuse when turned on). I also have half a working spare rotor, I forget if the AZ or EL is broke. If I send the box into Yaesu to fix, it will with the shipping probably be at least $200. I called Yaesu and they have new G-5500 control boxes for $380. I'm running out of stuff to try with this issue, and there isn't a lot of info to try and dig in any deeper. If I don't come up with anything I think I'm just going to buy a new control box, either the Yaesu or possibly another Green Heron FT-21azel. I'm going to give this another day, I'm hoping someone has had and fixed the same issue. Thanks for the continued help with this... 73 Jeff kb2m ----------------------------------------------------------- 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: ANS-175 AMSAT News Service Weekly Bulletins
by Chris Thompson 26 Jun '24

26 Jun '24

I see that ELaNa 43 Launch Carrying MESAT-1 is now NET Jun 30th. On X Firefly say the window is the 30th to the 1st of July. This Maine University sat carries an AMSAT-NA transponder. The BPSK telemetry for their experiments and the health of the spacecraft will be decodable with FoxTelem. 73 Chris On Sat, Jun 22, 2024, 20:06 Paul Stoetzer via AMSAT-BB <amsat-bb(a)amsat.org> wrote: > > *AMSAT News Service* > *ANS-175* > *June 23, 2024* > > In this edition: > > - ELaNa 43 Launch Carrying MESAT-1 Scheduled for June 27, 2024 > - AMSAT Board of Directors Nominees Announced > - AMSAT Mail Alias Service to End August 1, 2024 > - Video of AMSAT Engineering Q&A Sessions Available > - Changes to AMSAT TLE Distribution for June 21, 2024 > - ARISS News > - Upcoming Satellite Operations > - AMSAT Ambassador Activities > - Satellite Shorts From All Over > > The AMSAT News Service bulletins are a free, weekly news and information > service of AMSAT, 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 https://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 > > You can sign up for free e-mail delivery of the AMSAT News Service > Bulletins via the ANS List; to join this list see: > https://mailman.amsat.org/postorius/lists/ans.amsat.org/ > ------------------------------ > Save the Date! Symposium 2024 > > *Photo by Robert DuBois* > > Mark your calendar now for the 2024 AMSAT Symposium, > > *October 25-27, 2024 *at the Doubletree by Hilton Tampa Rocky Point > Waterfront in Tampa, Florida! > Watch for announcements concerning further details as plans are formulated. > ------------------------------ > ELaNa 43 Launch Carrying MESAT-1 Scheduled for June 27, 2024 > The University of Maine's MESAT-1 carrying a telemetry transmitter and > linear transponder provided by AMSAT and experiments designed by schools in > Maine will head into orbit as early as late this week as part of NASA's > ELaNa 43 launch. > > The ELaNa 43 (Educational Launch of Nanosatellites 43) mission includes > eight CubeSats flying on Firefly Aerospace’s Alpha rocket for its “Noise of > Summer” launch from Space Launch Complex-2 at Vandenberg Space Force Base, > California. The 30-minute launch window will open at 9 p.m. PDT Wednesday, > June 26 (12 a.m. EDT Thursday, June 27). > > Telemetry can be received using the same FoxTelem program that was used > for most of AMSAT's recent payloads. We urge readers to download the latest > FoxTelem (V1.12z3) from > https://www.amsat.org/tlm/leaderboard.php?id=0&db=FOXDB. This program > will decode telemetry from MESAT-1 (as well as AO-91) and forward the > results to AMSAT's central server for use by AMSAT engineering as well as > by Maine engineers and students. > > MESAT-1 will study local temperatures across city and rural areas to > determine phytoplankton concentration in bodies of water to help predict > algal blooms and also contains a linear transponder for amateurs to use. > Watch ANS and other media for information about when the transponder will > be activated. > > For more information on this satellite, visit > https://www.mainesat.org/mesat1/ > > *MESAT-1 – Launch June 27, 2024* > Uplink LSB 145.910 MHz through 145.940 MHz > Downlink USB 435.810 MHz through 435.840 MHz > AMSAT LTM-1 Transponder – 1200 bps FoxTelem BPSK beacon 435.800 MHz > > *[ANS thanks NASA and AMSAT Engineering for the above information]* > ------------------------------ > AMSAT Board of Directors Nominees Announced > > The nomination period for the 2024 AMSAT Board of Directors Election ended > on June 15th. The following candidates have been duly nominated: > > - Mark Hammond, N8MH > - Frank Karnauskas, N1UW > - Bruce Paige, KK5DO > - Paul Stoetzer, N8HM > - Douglas Tabor, N6UA > > As three seats on the Board of Directors are up for election this year, > the three candidates receiving the largest number of votes shall be > declared elected to the seats. The two candidates receiving the next > largest number of votes shall be declared First Alternate and Second > Alternate, respectively. The voting process will be conducted via AMSAT's > Wild Apricot membership system and will commence on July 15th. Instructions > for voting will be emailed to all members in good standing as of July 1st > by July 15th. The voting period shall conclude on September 15th and > results will be announced not later than September 30th. > > Biographies of the candidates will be available for review online and > published in the next edition of *The AMSAT Journal*. > > *[ANS thanks Jeff Davis, KE9V, AMSAT Secretary, for the above information]* > ------------------------------ > AMSAT Mail Alias Service to End August 1, 2024 > > A long-standing member service, the AMSAT Mail Alias Service is scheduled > to end on August 1, 2024. A mail alias on AMSAT.ORG permitted people to > send an email to members without knowing their actual internet email > address. They just needed to know their amateur radio callsign. > > Unfortunately, the unchecked rise in domain name hacking and email account > high-jacking has made it impossible to sustain this service at a > cost-effective level. The number of callsign(a)amsat.org email accounts > that had been hijacked and converted to zombie spam accounts over the years > had led many internet service providers and gateway centers to ban all @ > amsat.org email addresses, including those business accounts of AMSAT > officers and officials. The tireless efforts of AMSAT’s all volunteer IT > staff has worked for years to repair much of the damage, but AMSAT still > get complaints from members who are not getting their personal emails, ANS > bulletins or AMSAT-BB posts because of persistent delivery problems. > > It has come to the point where the AMSAT volunteer IT staff can no longer > keep up with the maintenance requirements to keep the alias mail list clean > and to work with email gateways to remove blocks. And, after considerable > investigation into alternative paid email services, AMSAT leadership > decided that the money required to keep an email alias system alive would > be better spent on building and flying satellites for its members. > > Persons using the Mail Alias Service should begin to migrate to different > email accounts so they do not lose receipt of personal emails, AMSAT News > Service Weekly Bulletins, AMSAT-BB posts, or official messages from AMSAT > itself. Members are especially asked to make sure they are NOT using a > callsign(a)amsat.org as their registered email address in the AMSAT > membership portal. Members can easily change their registered member email > address by logging into the portal and updating their profile. > > *[ANS thanks AMSAT for the above information]* > ------------------------------ > Video of AMSAT Engineering Q&A Sessions Available > > AMSAT Vice President – Engineering, Jerry Buxton, NØJY, hosted Q&A > “social gathering” live streams on YouTube and Twitch, as he mentioned in > his Hamvention “They Cancelled All My Flights” video where he followed up > and answered questions on developments with GOLF, Fox Plus, and other > projects. > > Archived videos of these sessions can be found at > https://www.youtube.com/@n0jy/streams > > *Note: If you read this at the time of publication, the final session may > be ongoing as it is scheduled to run from 00:01 UTC to 02:00 UTC on Sunday, > June 23rd.* > > *[ANS thanks Jerry Buxton, N0JY, AMSAT Vice President - Engineering, for > the above information]* > ------------------------------ > > > *The 2024 Coins Are Here Now!Help Support GOLF and Fox Plus.**Join > <https://www.amsat.org/join-the-amsat-presidents-club/> the AMSAT > President’s Club today!* > > ------------------------------ > Changes to AMSAT TLE Distribution for June 21, 2024 > > Two Line Elements or TLEs, often referred to as Keplerian elements or keps > in the amateur community, are the inputs to the SGP4 standard mathematical > model of spacecraft orbits used by most amateur tracking programs. Weekly > updates are completely adequate for most amateur satellites. TLE bulletin > files are updated Thursday evenings around 2300 UTC, or more frequently if > new high interest satellites are launched. More information may be found at > https://www.amsat.org/keplerian-elements-resources/ > > This week there are no additions or deletions to the AMSAT TLE > distribution. > > *[ANS thanks Joe Fitzgerald, KM1P, AMSAT Orbital Elements Manager, for the > above information]* > ------------------------------ > > *Need new satellite antennas? Purchase an M2 LEO-Pack from the **AMSAT > Store! <https://amsat.org/product-category/hardware/>**When you purchase > through **AMSAT, a portion of the proceeds goes towards **Keeping Amateur > Radio in Space.* > > ------------------------------ > ARISS News > > Amateurs and others around the world may listen in on contacts between > amateurs operating in schools and allowing students to interact with > astronauts and cosmonauts aboard the International Space Station. The > downlink frequency on which to listen is 145.800 MHz worldwide. > > *Complejo Educativo Nuestra Señora de Fátima N° 1139 and N° 8119, Pérez, > Argentina, Telebridge via VK6MJ* > > The ISS callsign is presently scheduled to be NA1SS > The scheduled crewmember is Jeanette Epps KF5QNU > The ARISS mentor is VE6JBJ > Contact is go for: Thu 2024-06-27 13:38:07 UTC 56 deg > > 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 crossband repeater continues to be active (145.990 MHz up {PL 67} & > 437.800 MHz down), 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. > > 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 > > *[ANS thanks Charlie Sufana, AJ9N, one of the ARISS operation team mentors > for the above information]* > ------------------------------ > Upcoming Satellite OperationsQuick Hits: > > From Randy,* ND0C*: > > From 24 June thru 7 July, we will be on another family camping vacation, > which means another satellite roving expedition! This time, thru *WI to > MI and back thru IL and IA.* No super rare grids but several that may be > needed by many. The grids and passes will depend on where/when we happen to > be while on the road or camping. This will be all LEO sats: FM & SSB. As > always, I will try for EU passes on RS-44 when possible. Looking forward to > pushing past the 100 grids-roved milestone. More info to come. > > ******************************************************************** > > *JA2QJI/8* will be QRV on GreenCube/IO-117 from *QN05* on 25th June. See > hams.at for any additional details. > > ******************************************************************** > > From Mike, *N8MR*: > > I will be in *EN57*, with roves to *EN67* from Friday, June 28 thru > Saturday, July 6. Using an Icom 9700, Arrow and Alaskan antennas. Listening > for Europe on linear eastern passes. *I can rove to EN56, only if needed.* Posting > passes to hams.at a day in advance. All QSOs to LoTW as N8MR. > > ******************************************************************** > > *HB0/DK9JC* should be QRV from *JN47* on GreenCube/IO-117 on 26th June. > See hams.at for any updates. > Major Roves: > *VP5/AA5UK* will be QRV from *FL31* from 23rd June through 5th July. This > operation will be holiday style but will cover HF/LEO/MEO. Head over to his > VP5/AA5UK QRZ page for all the info you can shake a stick at. > > *[ANS thanks Ian Parsons, K5ZM, AMSAT Rover Page Manager, and Alex Ners, > K6VHF, for the above information]* > ------------------------------ > * Want to fly the colors on your own grid expedition?* > Get an AMSAT car flag and other neat stuff from our Zazzle store > <https://www.zazzle.com/store/amsat_gear>! > 25% of the purchase price of each product goes towards Keeping Amateur > Radio in Space > > ------------------------------ > AMSAT Ambassador Activities > > AMSAT Ambassadors provide presentations, demonstrate communicating through > amateur satellites, and host information tables at club meetings, hamfests, > conventions, maker faires, and other events. > > AMSAT Ambassador Clint Bradford, K6LCS, says, > > "Think a 75-minute presentation on "working the easy satellites" would be > appropriate for your club or event? Let me know by emailing me at > k6lcsclint (at) gmail (dot) com or calling me at 909-999-SATS (7287)!" > > Clint has NEVER given the exact same show twice: EACH of the 150+ > presentations so far has been customized/tailored to their audiences. > Scheduled Events > > *“Moon Day” Frontiers of Flight Museum* > > *July 20, 2024* > Love Field in Dallas, Texas > AMSAT volunteers needed! Contact tschuessler(at) amsat.org for more > information. > > > *Huntsville Hamfest**August 17-18, 2024* > > Huntsville, AL > AMSAT Booth and Forum > N8DEU and W4FCL > > > *Northeast HamXpostion**August 22-25, 2024* > > Best Western Royal Plaza Hotel & Trade Center > 181 Boston Post Road W > Marlborough, MA 01752 > > > *Greater Louisville Hamfest**September 7, 2024* > > Shepherdsville, KY > AMSAT Forum and Information Table > W4FCL > > > *Central Kentucky Hamfest**October 5, 2024* > > Lexington, KY > AMSAT and Educational Satellites Forum and Information Table > AI4SR and W4FCL > > > *North Star Radio Convention**October 5, 2024* > > Hennepin Technical College (North Campus) > Brooklyn Park, Minn. > AMSAT Forum and Information Table > KØJM and ADØHJ > > > *2024 AMSAT Space Symposium and Annual General Meeting**October 25-27, > 2024* > > Doubletree by Hilton Tampa Rocky Point Waterfront > 3050 N Rocky Point Dr W > Tampa, FL 33607 > > *[ANS thanks Clint Bradford, K6LCS, and AMSAT for the above information]* > ------------------------------ > Satellite Shorts from All Over > > + If you participated in AMSAT Field Day, remember to submit your summary > sheet and any photos or comments by July 23, 2024. Submission details can > be found at https://www.amsat.org/field-day/ > ------------------------------ > > Join AMSAT today at https://launch.amsat.org/ > > In addition to regular membership, AMSAT offers membership to: > > - Societies (a recognized group, clubs or organization). > - 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 student rate for a maximum of 6 post-secondary > years in this status. > - Memberships are available for annual and lifetime terms. > > Contact info [at] amsat.org for additional membership information. > > *73 and remember to help Keep Amateur Radio in Space!* > > *This week's ANS Editor,* > > *Paul Stoetzer, N8HM* > *n8hm [at] amsat.org <http://amsat.org>* > > *ANS is a service of AMSAT, the Radio Amateur Satellite Corporation, 712 H > Street NE, Suite 1653, Washington, DC 20002* > > ----------------------------------------------------------- > > 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 issue
by graham＠shirville.com 26 Jun '24

26 Jun '24

Hi Jeff, Well I was assuming that it is the older 5500 model which has an AC motor - this has an instruction manual which shows a 6V regulator (top of circuit diagram). https://www.yaesu.com/downloadFile.cfm?FileID=8814 <https://www.yaesu.com/downloadFile.cfm?FileID=8814&FileCatID=155&FileName=G…> &FileCatID=155&FileName=G-5500_IM_ENG_E12901004.pdf&FileContentType=application%2Fpdf Maybe you have the 5500DC model for which they don’t seem to publish the circuit diagram? Although I doubt that they would have changed that part of the circuit 73 Graham G3VZV From: jeff griffin via AMSAT-BB <amsat-bb(a)amsat.org> Sent: Wednesday, June 26, 2024 9:44 PM To: amsat-bb(a)amsat.org Subject: [AMSAT-BB] Re: Yaesu G-5500 issue Ok. I removed the LM7812 and put in a LM7806. I now have 6v between pin1 and pin3. I also still have full scale on the meters. I tried all the things that were suggested. including the OHM test between wire on pin1 and wire on pin3 500 ohms , and 250 or so between wop2 to wop3 and wop1. SO it looks like the rotor is ok, it still rotates in AZ and EL. I'm going to leave the 6v VR in as my cable runs are only about 30 feet. What to do next. I have two broken G-5500 control boxes here, the one I'm working on, and one with a bad transformer(it blows fuse when turned on). I also have half a working spare rotor, I forget if the AZ or EL is broke. If I send the box into Yaesu to fix, it will with the shipping probably be at least $200. I called Yaesu and they have new G-5500 control boxes for $380. I'm running out of stuff to try with this issue, and there isn't a lot of info to try and dig in any deeper. If I don't come up with anything I think I'm just going to buy a new control box, either the Yaesu or possibly another Green Heron FT-21azel. I'm going to give this another day, I'm hoping someone has had and fixed the same issue. Thanks for the continued help with this... 73 Jeff kb2m

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Re: Yaesu G-5500 issue
by jeff griffin 26 Jun '24

26 Jun '24

Ok. I removed the LM7812 and put in a LM7806. I now have 6v between pin1 and pin3. I also still have full scale on the meters. I tried all the things that were suggested. including the OHM test between wire on pin1 and wire on pin3 500 ohms , and 250 or so between wop2 to wop3 and wop1. SO it looks like the rotor is ok, it still rotates in AZ and EL. I'm going to leave the 6v VR in as my cable runs are only about 30 feet. What to do next. I have two broken G-5500 control boxes here, the one I'm working on, and one with a bad transformer(it blows fuse when turned on). I also have half a working spare rotor, I forget if the AZ or EL is broke. If I send the box into Yaesu to fix, it will with the shipping probably be at least $200. I called Yaesu and they have new G-5500 control boxes for $380. I'm running out of stuff to try with this issue, and there isn't a lot of info to try and dig in any deeper. If I don't come up with anything I think I'm just going to buy a new control box, either the Yaesu or possibly another Green Heron FT-21azel. I'm going to give this another day, I'm hoping someone has had and fixed the same issue. Thanks for the continued help with this... 73 Jeff kb2m

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Re: Yaesu G-5500 issue
by mikflathead＠aol.com 26 Jun '24

26 Jun '24

I would guess that they supplied extra voltage for setups with long cable runs to make sure you could get full scale. Then the adjust it down with the pots. On Wednesday, June 26, 2024 at 12:06:42 PM EDT, graham shirville via AMSAT-BB <amsat-bb(a)amsat.org> wrote: Uuum …I thought the regulators are ?6V ones? 73 Graham G3VZV From: jeff griffin via AMSAT-BB <amsat-bb(a)amsat.org> Sent: Wednesday, June 26, 2024 4:57 PM To: amsat-bb(a)amsat.org Subject: [AMSAT-BB] Re: Yaesu G-5500 issue Ok here's what I got so far. First thing is the failed voltage regulator is/was a LM7812C, a 12v regulator. So I replaced it with the same. Now when I turn on the control box I get a 12v reading between 1 and 3, and now both meters are pinned full scale. So I hooked up the elevation side and the rotor is of course still working but the meters stay pinned full scale. I tried to adjust the full scale and out voltage Adj on the back and they have no effect on the meter reading. Anyone have any ideas? Thanks everyone for all the good input so far, we're getting there... 73 Jeff kb2m ----------------------------------------------------------- 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 issue
by jeff griffin 26 Jun '24

26 Jun '24

Here's a picture of the LM7812c that I removed. It sure looks like a 12v VC to me. I am now confused..... 73 Jeff kb2m

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