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

Re: Correction of time! Re: Falconsat-3, the end is near! TX to be turned ON 1810 UTC 19 Jan 2023
by Jean Marc Momple 19 Jan '23

19 Jan '23

Mark, It is coming my way right now in a few minutes with a superb overhead pass, hopefully will cature something. 73 Jean Marc (3B8DU) > On Jan 19, 2023, at 10:02 PM, Mark L. Hammond via AMSAT-BB <amsat-bb(a)amsat.org> wrote: > > Sorry, the correct time is 1810 utc! > > Mark L. Hammond [N8MH] > AMSAT Director and Command Station > > > > On Thu, Jan 19, 2023 at 7:00 AM Mark L. Hammond <marklhammond(a)gmail.com <mailto:marklhammond@gmail.com>> wrote: > Hi all, > > Current predictions for Falconsat-3 reentry seem to converge around late (UTC) 21 Jan 2023 to early (UTC) 22 Jan 2023. Therefore, I plan to command TX ON about 1910 UTC today, 19 Jan 2023, with battery management OFF. In recent weeks, it has survived this for 24-30 hours--at which time I have turned it OFF. So, this will be right on the margins for battery vs. reentry, but we're going to "flame out" either way :) Good luck with listening over the next couple of days.. TLEs here are current daily https://www.amsat.org/tle/current/daily.all <https://www.amsat.org/tle/current/daily.all> Or you may need to get them directly from Space-Track.. Reports here deeply appreciated! https://www.amsat.org/status/ <https://www.amsat.org/status/> > > 73! > > > Mark L. Hammond [N8MH] > AMSAT Director and Command Station > > > ----------------------------------------------------------- > > 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/amsat-bb@amsat.org > 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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Falconsat-3, the end is near! TX to be turned ON 1910 UTC 19 Jan 2023
by Mark L. Hammond 19 Jan '23

19 Jan '23

Hi all, Current predictions for Falconsat-3 reentry seem to converge around late (UTC) 21 Jan 2023 to early (UTC) 22 Jan 2023. Therefore, I plan to command TX ON about 1910 UTC today, 19 Jan 2023, with battery management OFF. In recent weeks, it has survived this for 24-30 hours--at which time I have turned it OFF. So, this will be right on the margins for battery vs. reentry, but we're going to "flame out" either way :) Good luck with listening over the next couple of days.. TLEs here are current daily https://www.amsat.org/tle/current/daily.all Or you may need to get them directly from Space-Track.. Reports here deeply appreciated! https://www.amsat.org/status/ 73! Mark L. Hammond [N8MH] AMSAT Director and Command Station

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Re: Falconsat-3, the end is near! TX to be turned ON 1910 UTC 19 Jan 2023
by Sasha Tim 19 Jan '23

19 Jan '23

[image: image.png] On Thu, Jan 19, 2023 at 12:42 PM Jean Marc Momple via AMSAT-BB < amsat-bb(a)amsat.org> wrote: > Mark, > > Thanks for the infos. On my side I am already on a 24/7 watch for F3 > re-entry. > > For all, I wish also to confirm that the Mauritius Amateur Radio Society > (MARS) will issue a special Award for the last formal (AMSAT > Leaderboard/Satnogs) reported signals from F3, additionally a MO-112 postal > first day cover will be sent to the winner with the certificate. The > purpose is to encourage all to get the maximum of information and try to > locate the approximate re-entry location of F3 and compare same with > calculated one. > > Good luck to all with F3 last signals. > > Jean Marc (3B8DU) > > > > On Jan 19, 2023, at 4:01 PM, Mark L. Hammond via AMSAT-BB < > amsat-bb(a)amsat.org> wrote: > > Hi all, > > Current predictions for Falconsat-3 reentry seem to converge around late > (UTC) 21 Jan 2023 to early (UTC) 22 Jan 2023. Therefore, I plan to command > TX ON about 1910 UTC today, 19 Jan 2023, with battery management OFF. In > recent weeks, it has survived this for 24-30 hours--at which time I have > turned it OFF. So, this will be right on the margins for battery vs. > reentry, but we're going to "flame out" either way :) Good luck with > listening over the next couple of days.. TLEs here are current daily > https://www.amsat.org/tle/current/daily.all Or you may need to get them > directly from Space-Track.. Reports here deeply appreciated! > https://www.amsat.org/status/ > > 73! > > > Mark L. Hammond [N8MH] > AMSAT Director and Command Station > > > ----------------------------------------------------------- > > 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/amsat-bb@amsat.org > 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/amsat-bb@amsat.org > 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: Falconsat-3, the end is near! TX to be turned ON 1910 UTC 19 Jan 2023
by Jean Marc Momple 19 Jan '23

19 Jan '23

Mark, Thanks for the infos. On my side I am already on a 24/7 watch for F3 re-entry. For all, I wish also to confirm that the Mauritius Amateur Radio Society (MARS) will issue a special Award for the last formal (AMSAT Leaderboard/Satnogs) reported signals from F3, additionally a MO-112 postal first day cover will be sent to the winner with the certificate. The purpose is to encourage all to get the maximum of information and try to locate the approximate re-entry location of F3 and compare same with calculated one. Good luck to all with F3 last signals. Jean Marc (3B8DU) > On Jan 19, 2023, at 4:01 PM, Mark L. Hammond via AMSAT-BB <amsat-bb(a)amsat.org> wrote: > > Hi all, > > Current predictions for Falconsat-3 reentry seem to converge around late (UTC) 21 Jan 2023 to early (UTC) 22 Jan 2023. Therefore, I plan to command TX ON about 1910 UTC today, 19 Jan 2023, with battery management OFF. In recent weeks, it has survived this for 24-30 hours--at which time I have turned it OFF. So, this will be right on the margins for battery vs. reentry, but we're going to "flame out" either way :) Good luck with listening over the next couple of days.. TLEs here are current daily https://www.amsat.org/tle/current/daily.all <https://www.amsat.org/tle/current/daily.all> Or you may need to get them directly from Space-Track.. Reports here deeply appreciated! https://www.amsat.org/status/ <https://www.amsat.org/status/> > > 73! > > > Mark L. Hammond [N8MH] > AMSAT Director and Command Station > > > ----------------------------------------------------------- > > 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/amsat-bb@amsat.org > 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 5400b azimuth pot
by Vince Fiscus, KB7ADL 19 Jan '23

19 Jan '23

At 01:50 AM 1/19/2023 +0000, gary_mayfield(a)hotmail.comwrote: >Vince, > > I have repaired several 5400 rotators (I no longer own > one). The pot can often be repaired. There is a small wire connecting the > center of the pot to the solder lug (this will make sense when you see > it). The wire twists as the pot and rotator rotate. It will often fail at > the solder joint making intermittent contact causing the position > indication to jump and/or have dead zones. Replace the small wire and it > will work another 10 years or so. Thanks to everyone for advice on the azimuth pot, I'll give Yaesu parts a call and cross my fingers. Amazing the rotor worked this long with no problems or maintenance. Has anyone found a video on the web of disassembly and re-assembly of the rotor, with important points to be aware of? I only want to disassemble just enough to work on the pot and its connecting wires. From my testing I'm sure it's a combination of bad pot and connecting wires. Issue only manifests itself from around 300 to 0 degrees azimuth with it occurring at different spots in that location depending on whether it's rotating clockwise or counter clockwise . The ohms reading across pins one and three drops from 500 ohms to around 200 ohms or less. Testing resistance between pins 1 and 2 when rotating, smooth 0 to 500 ohms, Between pins 2 and 3 when rotating is where I get the resistance hiccup. It won't keep me off the birds, but I'll mainly only be able to do satellite passes that are east of me until fixed. KB7ADL

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Re: Falconsat-3, the end is near! TX to be turned ON 1910 UTC 19 Jan 2023
by Pedro Converso 19 Jan '23

19 Jan '23

Hi Mark, Follows possible calculated reentry location of FS-3 http://amsat.org.ar/fs3reentry.jpg 73, lu7abf, Pedro PS: using http://amsat.org.ar/pass?satx=falconsat&date=21/01/2023%2003:35 At this url end, a future local date/time can be set as DD/MM/YYYY HH:MM TLEs at http://amsat.org.ar/keps.txt are updated every 3 hours on this application Program to download for reentry calculation at http://amsat.org.ar/satevo.zip (corrected) On 1/19/23, Mark L. Hammond via AMSAT-BB <amsat-bb(a)amsat.org> wrote: > Hi all, > > Current predictions for Falconsat-3 reentry seem to converge around late > (UTC) 21 Jan 2023 to early (UTC) 22 Jan 2023. Therefore, I plan to command > TX ON about 1910 UTC today, 19 Jan 2023, with battery management OFF. In > recent weeks, it has survived this for 24-30 hours--at which time I have > turned it OFF. So, this will be right on the margins for battery vs. > reentry, but we're going to "flame out" either way :) Good luck with > listening over the next couple of days.. TLEs here are current daily > https://www.amsat.org/tle/current/daily.all Or you may need to get them > directly from Space-Track.. Reports here deeply appreciated! > https://www.amsat.org/status/ > > 73! > > > Mark L. Hammond [N8MH] > AMSAT Director and Command Station >

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Re: Falconsat-3, the end is near! TX to be turned ON 1910 UTC 19 Jan 2023
by Pedro Converso 19 Jan '23

19 Jan '23

Hi Mark, Follows possible calculated reentry location of FS-3 http://amsat.org.ar/fs3reentry.jpg 73, lu7abf, Pedro PS: using http://amsat.org.ar/pass?satx=falconsat&date=21/01/2023%2003:35 At this url end, a future local date/time can be set as DD/MM/YYYY HH:MM TLEs at http://amsat.org.ar/keps.txt are updated every 3 hours on this application Program to download for reentry calculation at http://amsat.org.ar/sattevo.zip On 1/19/23, Mark L. Hammond via AMSAT-BB <amsat-bb(a)amsat.org> wrote: > Hi all, > > Current predictions for Falconsat-3 reentry seem to converge around late > (UTC) 21 Jan 2023 to early (UTC) 22 Jan 2023. Therefore, I plan to command > TX ON about 1910 UTC today, 19 Jan 2023, with battery management OFF. In > recent weeks, it has survived this for 24-30 hours--at which time I have > turned it OFF. So, this will be right on the margins for battery vs. > reentry, but we're going to "flame out" either way :) Good luck with > listening over the next couple of days.. TLEs here are current daily > https://www.amsat.org/tle/current/daily.all Or you may need to get them > directly from Space-Track.. Reports here deeply appreciated! > https://www.amsat.org/status/ > > 73! > > > Mark L. Hammond [N8MH] > AMSAT Director and Command Station >

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Re: Yaesu 5400b azimuth potentiometer
by Gary 18 Jan '23

18 Jan '23

Vince, I have repaired several 5400 rotators (I no longer own one). The pot can often be repaired. There is a small wire connecting the center of the pot to the solder lug (this will make sense when you see it). The wire twists as the pot and rotator rotate. It will often fail at the solder joint making intermittent contact causing the position indication to jump and/or have dead zones. Replace the small wire and it will work another 10 years or so. They are not the same pots being used in the 5500. The AC version of the 5500 uses a more traditional looking pot. They are both 500 Ohm wirewound pots. I have not been inside the even newer 5500DC. The last time I called (long ago) Yaesu was still willing to sell either. An exact replacement is available for the pot in the 5500 on eBay for less money, but you have to wait for shipping. Feel free to reply and I will dig up the link. It is possible to substitute a ‘standard’ 500 Ohm pot into the 5500. The one in the 5400 is a little more unique. 73, Joe kk0sd From: mikflathead--- via AMSAT-BB <amsat-bb(a)amsat.org> Sent: Wednesday, January 18, 2023 6:46 PM To: amsat-bb(a)amsat.org; vlfiscus(a)mcn.net Subject: [AMSAT-BB] Re: Yaesu 5400b azimuth potentiometer Isn't the azimuth rotor something they still make. 800 model? Mike -----Original Message----- From: Jim_WØNBC via AMSAT-BB <amsat-bb(a)amsat.org<mailto:amsat-bb@amsat.org>> To: Vince Fiscus, KB7ADL <vlfiscus(a)mcn.net<mailto:vlfiscus@mcn.net>>; amsat-bb(a)amsat.org<mailto:amsat-bb@amsat.org> Sent: Wed, Jan 18, 2023 7:13 pm Subject: [AMSAT-BB] Re: Yaesu 5400b azimuth potentiometer Call Yaesu parts and check. Phone number I have is Yaesu Tech Help (714) 827-7600 Hope this helps. Jim, W0NBC Sent from Yahoo Mail for iPhone<https://overview.mail.yahoo.com/?.src=iOS> On Wednesday, January 18, 2023, 5:51 PM, Vince Fiscus, KB7ADL via AMSAT-BB <amsat-bb(a)amsat.org<mailto:amsat-bb@amsat.org>> wrote: Bummer, The azimuth pot on my 27 year old Yaesu 5400 is going out. I couldn't locate a parts source online or equivalent replacement. Still doing testing to determine extent of problem. Does Yaesu still sell parts for the 5400? KB7ADL ----------------------------------------------------------- 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/amsat-bb@amsat.org 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<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/amsat-bb@amsat.org 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<https://mailman.amsat.org/>

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Amazon Smile Program
by Bruce 18 Jan '23

18 Jan '23

I just received this email from Amazon as I have been the administrator with Amazon for our Smile account. I would personally like to thank all of those who over the years purchased products from Amazon and graciously selected AMSAT as their charity of choice. Since 2013, I placed 521 qualifying orders amounting to $130.30 being donated to AMSAT as of 01/17/23. In total from all of you, AMSAT was donated $9,366.77 as of 11/30/22. As we have roughly one month left for your purchases to count for donations to AMSAT, let's go out with a "Smile". Let's give it a last hurrah. I do not think anyone new can select Radio Amateur Satellite Corporation, only those that have been donating can continue through February 20th. 73...bruce Here is part of the email received. *Dear customer,* In 2013, we launched AmazonSmile to make it easier for customers to support their favorite charities. However, after almost a decade, the program has not grown to create the impact that we had originally hoped. With so many eligible organizations—more than 1 million globally—our ability to have an impact was often spread too thin. We are writing to let you know that we plan to wind down AmazonSmile by February 20, 2023. We will continue to pursue and invest in other areas where we’ve seen we can make meaningful change—from building affordable housing to providing access to computer science education for students in underserved communities to using our logistics infrastructure and technology to assist broad communities impacted by natural disasters. -- Bruce Paige, KK5DO AMSAT Director Contests and Awards AMSAT Board Member 2016-2024 ARRL Awards Field Checker (WAS, 5BWAS, VUCC), VE Houston AMSAT Net - Wed 0200z on Echolink - Conference *AMSAT* Also live streaming MP3 athttp://www.amsatnet.com Podcast athttp://www.amsatnet.com/podcast.xml or iTunes Latest satellite news on the ARRL Audio News http://www.arrl.org AMSAT on Twitterhttp://www.twitter.com/amsat

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Re: Yaesu 5400b azimuth potentiometer
by mikflathead＠aol.com 18 Jan '23

18 Jan '23

Isn't the azimuth rotor something they still make. 800 model? Mike -----Original Message----- From: Jim_WØNBC via AMSAT-BB <amsat-bb(a)amsat.org> To: Vince Fiscus, KB7ADL <vlfiscus(a)mcn.net>; amsat-bb(a)amsat.org Sent: Wed, Jan 18, 2023 7:13 pm Subject: [AMSAT-BB] Re: Yaesu 5400b azimuth potentiometer Call Yaesu parts and check. Phone number I have is Yaesu Tech Help (714) 827-7600 Hope this helps. Jim, W0NBC Sent from Yahoo Mail for iPhone On Wednesday, January 18, 2023, 5:51 PM, Vince Fiscus, KB7ADL via AMSAT-BB <amsat-bb(a)amsat.org> wrote: Bummer, The azimuth pot on my 27 year old Yaesu 5400 is going out. I couldn't locate a parts source online or equivalent replacement. Still doing testing to determine extent of problem. Does Yaesu still sell parts for the 5400? KB7ADL ----------------------------------------------------------- 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/amsat-bb@amsat.org 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/amsat-bb@amsat.org 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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