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

TEVEL-6
by david.greenberg 21 Dec '23

21 Dec '23

Hello All, TEVEL-6 FM transponder has been activated, starting from today, 21.12.23 08:01U for 72 hours.73,David 4X1DGנשלח מה-Galaxy שלי

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Upcoming ARISS Contact Schedule as of 2023-12-21 05:00 UTC
by aj9n＠aol.com 21 Dec '23

21 Dec '23

Upcoming ARISS Contact Schedule as of 2023-12-21 05:00 UTC Quick list of scheduled contacts and events: TBD No contacts have been scheduled from 2023-12-21 to 2024-01-14. (***) ARISS teams worldwide have come together to prepare an SSTV event for the 40th Anniversary of STS-9. SSTV from the ISS was to be sent on 145.800 MHz using the PD120 format. The event was scheduled for Sat 2023-12-16 at 10:15 UTC through Tue 2023-12-19 around 18:00 UTC. Unfortunately there is an issue that is still attempting to be resolved, so no signals were received. Hopefully the event can be rescheduled in the near future. (***) The crossband repeater continues to be active. If any crewmember is so inclined, all they have to do is pick up the microphone, raise the volume up, and talk on the crossband repeater. So give a listen, you just never know. Note, all times are approximate. It is recommended that you do your own orbital prediction or start listening about 10 minutes before the listed time. All dates and times listed follow International Standard ISO 8601 date and time format YYYY-MM-DD HH:MM:SS The complete schedule page has been updated as of 2023-12-21 05:00 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 2023-12-14 18:00 UTC. https://www.amsat.org/amsat/ariss/news/Successful_ARISS_schools.rtf ####################################################################################################################################### Comments on making general contacts I have been seeing a lot of traffic on Facebook and I suspect on other social media sites with people asking why they are not hearing the crew make general contacts. First off the crew is very busy on the ISS and they simply may not have the time to just pick up the microphone and talk. Also, one needs to be aware of their normal daily schedule. I have listed below the constraints that we at ARISS have to follow in order to schedule the school contacts. Hopefully this will help you better schedule your opportunities. Typical daily schedule Wakeup to Workday start= 1.5 hours Workday start to Workday end=12 hours Workday end to Sleep= 2 hours Sleep to wakeup= 8.5 hours The crew's usual waking period is 07:30 – 19:30 UTC. The most common times to find a crew member making casual periods are about one hour after waking up and about an hour before sleeping, when they have personal time. They're usually free most of the weekend, as well. SSTV events are not that often. So please check out https://www.ariss.org/ for the latest information or watch for the ARISS announcements. And don’t forget that the packet system is sometimes active. Check the status at https://www.ariss.org/ or http://www.issfanclub.eu to see if the packet system is active or not. As always, if there is an EVA, a docking, or an undocking; the ARISS radios are turned off as part of the safety protocol. The latest information on the operation mode can be found at https://www.ariss.org/current-status-of-iss-stations.html The latest list of frequencies in use can be found at https://www.ariss.org/contact-the-iss.html ######################################################################################################################################## A multi-point telebridge contact means that each student will be on the telebridge from their own home. **************************************************************************************************************************************** ARISS is very aware of the impact that COVID-19 is having on schools and the public in general. As such, we may have last minute cancellations or postponements of school contacts. As always, I will try to provide everyone with near-real-time updates. Watch for future COVID-19 related announcements at https://www.ariss.org/ The following schools have now been postponed or cancelled due to COVID-19: Postponed: No new schools Cancelled: No new schools **************************************************************************************************************************************** The ARISS webpage is at https://www.ariss.org/ Note that there are links to other ARISS websites from this site. The main page for Applying to Host a Scheduled Contact may be found at https://www.ariss.org/apply-to-host-an-ariss-contact.html +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (United States) Call for Proposals The next proposal window for US schools and educational organizations to host an Amateur Radio contact with a crew member on board the ISS opens October 1, 2023 for contacts to be scheduled for July 1, 2024 – December 31, 2024. This proposal is due to ARISS by November 10, 2023 at 11:59 PM Pacific Time. Proposal information and more details such as expectations, proposal guidelines and the proposal form can be found at www.ariss.org. An ARISS Introductory Webinar session will be held on October 5 2023 at 7 PM ET. The Eventbrite link to sign up is: https://ariss-proposal-webinar-fall-2023.eventbrite.com Find more information and proposal instructions, visit the ARISS-USA website at: https://ariss-usa.org/hosting-an-ariss-contact-in-the-usa/ Please direct any questions to ariss.us.education(a)gmail.com. For future proposal information and more details such as expectations, proposal guidelines and proposal form, and dates and times of Information Webinars, go to www.ariss.org. About ARISS: Amateur Radio on the International Space Station (ARISS) is a cooperative venture of international amateur radio societies and the space agencies that support the International Space Station (ISS). In the United States, sponsors are the Radio Amateur Satellite Corporation (AMSAT), the American Radio Relay League (ARRL), the ISS National Lab and National Aeronautics and Space Administration (NASA). The primary goal of ARISS is to promote exploration of science, technology, engineering, and mathematics (STEAM) topics by organizing scheduled contacts via amateur radio between crew members aboard the ISS and students in classrooms or public forms. Before and during these radio contacts, students, educators, parents, and communities learn about space, space technologies, and amateur radio. For more information, see www.ariss.org. +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS Contact Applications (Europe, Africa and the Middle East) Schools and Youth organizations in Europe, Africa and the Middle East interested in setting up an ARISS radio contact with an astronaut on board the International Space Station are invited to submit an application from September to October and from February to April. Please refer to details and the application form at www.ariss-eu.org/school-contacts. Applications should be addressed by email to: school.selection.manager(a)ariss-eu.org ARISS Contact Applications (Canada, Central and South America, Asia and Australia and Russia) +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Organizations outside the United States can apply for an ARISS contact by filling out an application. Please direct questions to the appropriate regional representative listed below. If your country is not specifically listed, send your questions to the nearest ARISS Region listed. If you are unsure which address to use, please send your question to the ARISS-Canada representative; they will forward your question to the appropriate coordinator. For the application, go to: https://www.ariss.org/ariss-application.html. ARISS-Canada and the Americas, except USA: Steve McFarlane, VE3TBD email to: ve3tbd(a)gmail.com ARISS-Japan, Asia, Pacific and Australia: Satoshi Yasuda, 7M3TJZ email to: ariss(a)iaru-r3.org, Japan Amateur Radio League (JARL) https://www.jarl.org/ ARISS-Russia: Soyuz Radioljubitelei Rossii (SRR) https://srr.ru/ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ARISS is always glad to receive listener reports for the above contacts. ARISS thanks everyone in advance for their assistance. Feel free to send your reports to aj9n(a)amsat.org or aj9n(a)aol.com. Listen for the ISS on the downlink of 145.8Ø MHz unless otherwise noted. ******************************************************************************* All ARISS contacts are made via the Kenwood radio unless otherwise noted. ******************************************************************************* Several of you have sent me emails asking about the RAC ARISS website and not being able to get in. That has now been changed to https://www.ariss.org/ Note that there are links to other ARISS websites from this site. **************************************************************************** Looking for something new to do? How about receiving DATV from the ISS? Please note that the HamTV system has been brought back to earth for troubleshooting. Please monitor ARISS-EU or ARISS-ON for the very latest news on the troubleshooting efforts. If interested, then please go to the ARISS-EU website for complete details. Look for the buttons indicating Ham Video. http://www.ariss-eu.org/ If you need some assistance, ARISS mentor Kerry N6IZW, might be able to provide some insight. Contact Kerry at kbanke(a)sbcglobal.net The HamTV webpage: https://www.amsat-on.be/hamtv-summary/ **************************************************************************** ARISS congratulates the following mentors who have now mentored over 100 schools: Sergey RV3DR with 220 Francesco IKØWGF with 152 Satoshi 7M3TJZ with 150 Gaston ON4WF with 124 Peter IN3GHZ with 118 Steve VE3TBD with 106 **************************************************************************** The webpages listed below were all reviewed for accuracy. Out of date webpages were removed, and new ones have been added. If there are additional ARISS websites I need to know about, please let me know. Total number of ARISS ISS to earth school events is 1683. Each school counts as 1 event. Total number of ARISS ISS to earth school contacts is 1589. Each contact may have multiple schools sharing the same time slot. Total number of ARISS supported terrestrial contacts is 48. Please feel free to contact me if more detailed statistics are needed. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ The following US states and entities have never had an ARISS contact: South Dakota, American Samoa, Guam, Northern Marianas Islands, and the Virgin Islands. ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ QSL information may be found at: https://www.ariss.org/qsl-cards.html ISS callsigns: DPØISS, FXØISS, GB1SS, IRØISS, NA1SS, OR4ISS, RSØISS **************************************************************************** Frequency chart for packet, voice, and crossband repeater modes showing Doppler correction as of 2005-07-29 04:00 UTC https://www.amsat.org/amsat/ariss/news/ISS_frequencies_and_Doppler_correcti… Check out the Zoho reports of the ARISS contacts https://reports.zoho.com/ZDBDataSheetView.cc?DBID=412218000000020415 **************************************************************************** SpaceX Crew-7 on orbit Jasmin Moghbeli KI5WSL Andreas Mogensen KG5GCZ Satoshi Furukawa Konstantin Borisov Exp. 70 on orbit Oleg Kononenko Nikolay Chub Loral O’Hara KI5TOM **************************************************************************** 73, Charlie Sufana AJ9N One of the ARISS operation team mentors

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TEVEL-3
by david.greenberg 20 Dec '23

20 Dec '23

Hello All, TEVEL-3 FM transponder has been activated, starting from today, 20.12.23 18:50U for 72 hours.73,David 4X1DGנשלח מה-Galaxy שלי

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Re: CQ on satellites?
by Dave Skarbowski 18 Dec '23

18 Dec '23

I'm just an amateur... Dave kx3dx On Mon, Dec 18, 2023, 12:55 PM Alex Krist via AMSAT-BB <amsat-bb(a)amsat.org> wrote: > This is starting to sound like the same bickering that happened in the > past after every HF RTTY contest where folks are admonishing each other for > have a space character too many in an exchange, are IDing too much, or what > have you, because “precious time is wasted”. > > > > Everyone will come up with some scenario where one or the other behavior > is warranted, and in the end nothing changes. In a few months the same > discussion will ensue. Rinse and repeat. 😊 > > > > 73, > > --Alex KR1ST > > > > > > *From:* Mark Johns, K0JM via AMSAT-BB <amsat-bb(a)amsat.org> > *Sent:* Monday, December 18, 2023 2:45 PM > *To:* Andy Brian <briaandy(a)gmail.com> > *Cc:* AMSAT-BB <amsat-bb(a)amsat.org> > *Subject:* [AMSAT-BB] Re: CQ on satellites? > > > > Go back and read my first paragraph again carefully, Andy. Yes, as you > say, " You need to send CQ or call somebody." I'm just saying that, when > there are already dozens of people on the satellite, it's better to call > somebody than to keep throwing out CQs. > > -- > > 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 Mon, Dec 18, 2023 at 1:36 PM Andy Brian <briaandy(a)gmail.com> wrote: > > How do you know which station is QRV on the pass if never send packet over > IO-117? You need to send CQ or call somebody > > but you need to see station to call him....the problem on sat is if > station calling CQ every 10seconds > > > > Without CQ stationA will call blind and wait if the stationB will reply > or maybe station B is not active at the moment and other will send more > packets to > > stations which are not active at the moment. It seems CQ is better then > blind call... > > > > On Mon, Dec 18, 2023 at 5:34 PM Mark Johns, K0JM via AMSAT-BB < > amsat-bb(a)amsat.org> wrote: > > Isn't it time that we banned calling CQ on IO-117? Sure, if the satellite > is dead, and there is absolutely no traffic, put your CQ out there. But > when the bird is over North America, Japan, or Western Europe (and > especially when all three are in the footprint at once), there are > generally 50 or more stations all competing for the resource to complete > contacts. How difficult is it to pick one of those you'd like to work and > give them a call? By doing so, you've also announced your presence, and > anyone else interested in working you will give you a call in return. > Taking up time on the digipeater to call CQ when the bird is active and > crowded is simply a waste of the scarce resource. > > > > Similarly, on FM satellites, while a few newbies actually call CQ, I > constantly hear stations putting out their callsign and grid to no one in > particular. Again, great if the repeater has been silent for a while. But > on some passes you'll hear two or three stations putting out their call, > and none of them actually makes a contact! If one would listen and then > actually call the other station, they'd both have a QSO in the log. But if > everyone just keeps throwing calls around, it never happens. > > > > On a linear satellite, like RS-44, a CQ can actually make sense -- so long > as there isn't someone just up the passband doing the same thing. > > > > We'd all be much better off listening for the stations already on the > satellite and calling one of them instead of wasting our resources calling > to no one in particular. > > -- > > 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 > > > ----------------------------------------------------------- > > 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: CQ on satellites?
by alex＠kr1st.com 18 Dec '23

18 Dec '23

This is starting to sound like the same bickering that happened in the past after every HF RTTY contest where folks are admonishing each other for have a space character too many in an exchange, are IDing too much, or what have you, because “precious time is wasted”. Everyone will come up with some scenario where one or the other behavior is warranted, and in the end nothing changes. In a few months the same discussion will ensue. Rinse and repeat. 😊 73, --Alex KR1ST From: Mark Johns, K0JM via AMSAT-BB <amsat-bb(a)amsat.org> Sent: Monday, December 18, 2023 2:45 PM To: Andy Brian <briaandy(a)gmail.com> Cc: AMSAT-BB <amsat-bb(a)amsat.org> Subject: [AMSAT-BB] Re: CQ on satellites? Go back and read my first paragraph again carefully, Andy. Yes, as you say, " You need to send CQ or call somebody." I'm just saying that, when there are already dozens of people on the satellite, it's better to call somebody than to keep throwing out CQs. -- 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 Mon, Dec 18, 2023 at 1:36 PM Andy Brian <briaandy(a)gmail.com <mailto:[email protected]> > wrote: How do you know which station is QRV on the pass if never send packet over IO-117? You need to send CQ or call somebody but you need to see station to call him....the problem on sat is if station calling CQ every 10seconds Without CQ stationA will call blind and wait if the stationB will reply or maybe station B is not active at the moment and other will send more packets to stations which are not active at the moment. It seems CQ is better then blind call... On Mon, Dec 18, 2023 at 5:34 PM Mark Johns, K0JM via AMSAT-BB <amsat-bb(a)amsat.org <mailto:[email protected]> > wrote: Isn't it time that we banned calling CQ on IO-117? Sure, if the satellite is dead, and there is absolutely no traffic, put your CQ out there. But when the bird is over North America, Japan, or Western Europe (and especially when all three are in the footprint at once), there are generally 50 or more stations all competing for the resource to complete contacts. How difficult is it to pick one of those you'd like to work and give them a call? By doing so, you've also announced your presence, and anyone else interested in working you will give you a call in return. Taking up time on the digipeater to call CQ when the bird is active and crowded is simply a waste of the scarce resource. Similarly, on FM satellites, while a few newbies actually call CQ, I constantly hear stations putting out their callsign and grid to no one in particular. Again, great if the repeater has been silent for a while. But on some passes you'll hear two or three stations putting out their call, and none of them actually makes a contact! If one would listen and then actually call the other station, they'd both have a QSO in the log. But if everyone just keeps throwing calls around, it never happens. On a linear satellite, like RS-44, a CQ can actually make sense -- so long as there isn't someone just up the passband doing the same thing. We'd all be much better off listening for the stations already on the satellite and calling one of them instead of wasting our resources calling to no one in particular. -- 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 ----------------------------------------------------------- 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

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Re: CQ on satellites?
by Andy Brian 18 Dec '23

18 Dec '23

How do you know which station is QRV on the pass if never send packet over IO-117? You need to send CQ or call somebody but you need to see station to call him....the problem on sat is if station calling CQ every 10seconds Without CQ stationA will call blind and wait if the stationB will reply or maybe station B is not active at the moment and other will send more packets to stations which are not active at the moment. It seems CQ is better then blind call... On Mon, Dec 18, 2023 at 5:34 PM Mark Johns, K0JM via AMSAT-BB < amsat-bb(a)amsat.org> wrote: > Isn't it time that we banned calling CQ on IO-117? Sure, if the satellite > is dead, and there is absolutely no traffic, put your CQ out there. But > when the bird is over North America, Japan, or Western Europe (and > especially when all three are in the footprint at once), there are > generally 50 or more stations all competing for the resource to complete > contacts. How difficult is it to pick one of those you'd like to work and > give them a call? By doing so, you've also announced your presence, and > anyone else interested in working you will give you a call in return. > Taking up time on the digipeater to call CQ when the bird is active and > crowded is simply a waste of the scarce resource. > > Similarly, on FM satellites, while a few newbies actually call CQ, I > constantly hear stations putting out their callsign and grid to no one in > particular. Again, great if the repeater has been silent for a while. But > on some passes you'll hear two or three stations putting out their call, > and none of them actually makes a contact! If one would listen and then > actually call the other station, they'd both have a QSO in the log. But if > everyone just keeps throwing calls around, it never happens. > > On a linear satellite, like RS-44, a CQ can actually make sense -- so long > as there isn't someone just up the passband doing the same thing. > > We'd all be much better off listening for the stations already on the > satellite and calling one of them instead of wasting our resources calling > to no one in particular. > -- > 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 > > ----------------------------------------------------------- > > 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: CQ on satellites?
by Mark Johns, K0JM 18 Dec '23

18 Dec '23

No issue calling CQ on linear satellites. Plenty of space, plenty of time. It's unfortunate when there are only two stations in the passband and both are calling CQ, but I understand that not everyone has a band scope to see other signals. And on most passes, the passband will soon be populated. My concern is primarily with the single channel satellites, both FM and digital. -- 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 Mon, Dec 18, 2023 at 1:25 PM Zach Metzinger via AMSAT-BB < amsat-bb(a)amsat.org> wrote: > On 12/18/23 10:35, Mark Johns, K0JM via AMSAT-BB wrote: > > On a linear satellite, like RS-44, a CQ can actually make sense -- so > > long as there isn't someone just up the passband doing the same thing. > > > > We'd all be much better off listening for the stations already on the > > satellite and calling one of them instead of wasting our resources > > calling to no one in particular. > > A reminder: Some stations are dealing with limited resources and finding > one's own signal can be difficult on the linear sats with fading/etc. > Those with more limited resources may prefer to call CQ and let the "big > guns" find them, rather than going hunting for the other signals and > then trying to get synced up on the uplink. > > Yes, I'm aware that computer software, or dedicated hardware boxes, > makes this easier, but sometimes that doesn't work as well as promised > or isn't available at all. Linear sats provide a wonderful swath of > translated spectrum for everyone to enjoy doing their own thing. > > --- Zach > N0ZGO > > ----------------------------------------------------------- > > 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: CQ on satellites?
by Zach Metzinger 18 Dec '23

18 Dec '23

On 12/18/23 10:35, Mark Johns, K0JM via AMSAT-BB wrote: > On a linear satellite, like RS-44, a CQ can actually make sense -- so > long as there isn't someone just up the passband doing the same thing. > > We'd all be much better off listening for the stations already on the > satellite and calling one of them instead of wasting our resources > calling to no one in particular. A reminder: Some stations are dealing with limited resources and finding one's own signal can be difficult on the linear sats with fading/etc. Those with more limited resources may prefer to call CQ and let the "big guns" find them, rather than going hunting for the other signals and then trying to get synced up on the uplink. Yes, I'm aware that computer software, or dedicated hardware boxes, makes this easier, but sometimes that doesn't work as well as promised or isn't available at all. Linear sats provide a wonderful swath of translated spectrum for everyone to enjoy doing their own thing. --- Zach N0ZGO

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Re: CQ on satellites?
by Clint Bradford 18 Dec '23

18 Dec '23

Well, no AMSAT Ambassador is teaching that ... does anyone know of a Web site that does? If so, I will gladly (and gently) contact them. OR, if your anyone here has a club Web site needs some "tuning up," YOU could take the lead! Clint K6LCS Sent from my iPhone > On Dec 18, 2023, at 08:35, Mark Johns, K0JM via AMSAT-BB <amsat-bb(a)amsat.org> wrote: > > > Isn't it time that we banned calling CQ ...

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CQ on satellites?
by Mark Johns, K0JM 18 Dec '23

18 Dec '23

Isn't it time that we banned calling CQ on IO-117? Sure, if the satellite is dead, and there is absolutely no traffic, put your CQ out there. But when the bird is over North America, Japan, or Western Europe (and especially when all three are in the footprint at once), there are generally 50 or more stations all competing for the resource to complete contacts. How difficult is it to pick one of those you'd like to work and give them a call? By doing so, you've also announced your presence, and anyone else interested in working you will give you a call in return. Taking up time on the digipeater to call CQ when the bird is active and crowded is simply a waste of the scarce resource. Similarly, on FM satellites, while a few newbies actually call CQ, I constantly hear stations putting out their callsign and grid to no one in particular. Again, great if the repeater has been silent for a while. But on some passes you'll hear two or three stations putting out their call, and none of them actually makes a contact! If one would listen and then actually call the other station, they'd both have a QSO in the log. But if everyone just keeps throwing calls around, it never happens. On a linear satellite, like RS-44, a CQ can actually make sense -- so long as there isn't someone just up the passband doing the same thing. We'd all be much better off listening for the stations already on the satellite and calling one of them instead of wasting our resources calling to no one in particular. -- 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

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