October 2018 - AMSAT-BB - mailman.amsat.org

Re: [amsat-bb] Sputnik
by tjschuessler＠verizon.net 06 Oct '18

06 Oct '18

The site where, at least a part of the satellite came down to earth after reentry is in the middle of a street in Manitowoc, Wisconsin. There is a marker on the sidewalk and a circle in the middle of the street where a piece of it came down. They even have a festival every September. I was back in Wisconsin in August and saw it mentioned on roadsideamerica.com so had to stop by. Tom, N5HYP -----Original Message----- Date: Fri, 05 Oct 2018 17:21:24 -0700 From: Richard Tejera <Saguaroastro(a)cox.net> To: wa7dxz <wa7dxz(a)aol.com>, 'AMSAT' <amsat-bb(a)amsat.org> Subject: Re: [amsat-bb] Sputnik Message-ID: <ealmft2oe4cmvj1uy2kuposh.1538785284342(a)email.android.com> Content-Type: text/plain; charset=utf-8 According to Wikipedia: Last contact26 October 1957[4]Decay date4 January 1958 Rick Tejera K7TEJ Saguaro Astronomy Club www.SaguaroAstro.org Thunderbird Amateur Radio Club www.w7tbc.org On October 4, 2018, at 22:23, wa7dxz via AMSAT-BB <amsat-bb(a)amsat.org> wrote: How long was Sputnik in orbit, and for how long was the signal on the air?Bobwa7dxz ------------------------------

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CT Qso for WAS Satellite
by alex weimer 06 Oct '18

06 Oct '18

I would like to have a qso with someone from CT to confirm my last state for WAS Satellite. I am available most times either on the FM or Linear Sats. I would like to confirm a contact via LOTW. If any stations in CT are willing to set up a schedule I would really appreciate it. Please email me to set up a sked. Thanks in advance Alex (JACK) KC7MG My email is ingejack(a)cox.net

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Re: [amsat-bb] 1957
by Bruce 06 Oct '18

06 Oct '18

I have a recording of the original Sputnik as recorded by William Magnusson, VK3JT, in Melbourne, Australia on Oct 06, 1957 using an Eddystone Model 680X and a Dipole on 15m. The frequency was 20.001 Mc/s. http://www.amsatnet.com/sputnik.mp3 73...bruce -- Bruce Paige, KK5DO AMSAT Director Contests and Awards AMSAT Board Member 2016-2020 ARRL Awards Field Checker (WAS, 5BWAS, VUCC), VE Houston AMSAT Net - Wed 0100z on Echolink - Conference *AMSAT* Also live streaming MP3 at http://www.amsatnet.com Podcast at http://www.amsatnet.com/podcast.xml or iTunes Latest satellite news on the ARRL Audio News http://www.arrl.org AMSAT on Twitter http://www.twitter.com/amsat

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Re: [amsat-bb] Sputnik
by Richard Tejera 06 Oct '18

06 Oct '18

According to Wikipedia: Last contact26 October 1957[4]Decay date4 January 1958 Rick Tejera K7TEJ Saguaro Astronomy Club www.SaguaroAstro.org Thunderbird Amateur Radio Club www.w7tbc.org On October 4, 2018, at 22:23, wa7dxz via AMSAT-BB <amsat-bb(a)amsat.org> wrote: How long was Sputnik in orbit, and for how long was the signal on the air?Bobwa7dxz Sent from my Verizon, Samsung Galaxy smartphone _______________________________________________ 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. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb

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Re: [amsat-bb] AO-91/92/85 DUV Decode Sovled
by Mark L. Hammond 05 Oct '18

05 Oct '18

Great discovery, Hasan. Nice work. That is much better copy than I would expect from that antenna system. 73, Mark N8MH At 11:11 AM 10/5/2018 -0500, Hasan al-Basri wrote: >Thanks to all of you and the last magic bullet from Terry, ZL2BAC. > >Setup: >2m EggBeater at 7', 80' 9913 coax >AirSpy HF+, SDR-Console V3.03 >FoxTelem 1.06r patched >VBAudio from SDRC > Decoder > >Checked L/R audio, not an issue for me, as I was getting audio in both >channels. I unchecked Left Audio, to be safe. (FoxTelem) > >Symptom: Could not decode DUV telemetry, did not see Eye fully open, always >smeared, and no squared off peaks in the freq display of FoxTelem. > >Solution >1. Not only is there a high pass filter in the Narrow FM setting of SDRC >V3, but *there is a second HiPass* in : > >Receive > Options > Equalizer ...in the bottom right hand corner, two >check boxes, Equalizer and 25 Hz filter. They were checked since install, I >had never looked at the Equalizer in all these months of use. > >Summary Settings That Work: > >SDRC: NFM, 12 kHz >Audio Output Slider 60% >CABLE Input (VB-Audio Virtual Cable) >Narrow FM: Highpas OFF >Receive > Options > Equalizer OFF, HPF OFF > >FoxTelem Settings: (Aside from my location/call/etc) > >Input Screen: >DUV (not Auto) >Input: CABLE Output (VB-Audio Virtual Cable) >View Filtered Audio >Raised Cosine >Cutoff Freq: 200 Hz >Filter Length: 512 > >Settings Screen: >All Defaults, except: > >FoxTelem Calculates Position >Auto Start Decoder when above horizon > >Decoder Options: >Upload to Server >Track Doppler (probably not needed as SDRC is doing this and I'm not using >FunCube) >Store Payloads >Fix Dropped Bits >use Long PRM > >Debug Options: >Use Native File Chooser >================================= > >My one remaining question: > >At the finish of this 15 deg pass, I got 53 Frames, 57 Payloads, and >Queued: 53 > >When does the queued data get uploaded? It's been half an hour and nothing >has happened and I'm not showing up as a ground station. > >Signals were far from outstanding, so I wouldn't say it is hard to get TLM >copied. 15 deg EL on an Eggbeater only 7' off the ground is not a great >pass. Lots of fades, lots of noise much of the time. > >Thanks to all for help. Now I can make a habit og grabbing TLM. > >73 N0AN > >Hasan >_______________________________________________ >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. >Not an AMSAT-NA member? Join now to support the amateur satellite program! >Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb

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AO-91/92/85 DUV Decode Sovled
by Hasan al-Basri 05 Oct '18

05 Oct '18

Thanks to all of you and the last magic bullet from Terry, ZL2BAC. Setup: 2m EggBeater at 7', 80' 9913 coax AirSpy HF+, SDR-Console V3.03 FoxTelem 1.06r patched VBAudio from SDRC > Decoder Checked L/R audio, not an issue for me, as I was getting audio in both channels. I unchecked Left Audio, to be safe. (FoxTelem) Symptom: Could not decode DUV telemetry, did not see Eye fully open, always smeared, and no squared off peaks in the freq display of FoxTelem. Solution 1. Not only is there a high pass filter in the Narrow FM setting of SDRC V3, but *there is a second HiPass* in : Receive > Options > Equalizer ...in the bottom right hand corner, two check boxes, Equalizer and 25 Hz filter. They were checked since install, I had never looked at the Equalizer in all these months of use. Summary Settings That Work: SDRC: NFM, 12 kHz Audio Output Slider 60% CABLE Input (VB-Audio Virtual Cable) Narrow FM: Highpas OFF Receive > Options > Equalizer OFF, HPF OFF FoxTelem Settings: (Aside from my location/call/etc) Input Screen: DUV (not Auto) Input: CABLE Output (VB-Audio Virtual Cable) View Filtered Audio Raised Cosine Cutoff Freq: 200 Hz Filter Length: 512 Settings Screen: All Defaults, except: FoxTelem Calculates Position Auto Start Decoder when above horizon Decoder Options: Upload to Server Track Doppler (probably not needed as SDRC is doing this and I'm not using FunCube) Store Payloads Fix Dropped Bits use Long PRM Debug Options: Use Native File Chooser ================================= My one remaining question: At the finish of this 15 deg pass, I got 53 Frames, 57 Payloads, and Queued: 53 When does the queued data get uploaded? It's been half an hour and nothing has happened and I'm not showing up as a ground station. Signals were far from outstanding, so I wouldn't say it is hard to get TLM copied. 15 deg EL on an Eggbeater only 7' off the ground is not a great pass. Lots of fades, lots of noise much of the time. Thanks to all for help. Now I can make a habit og grabbing TLM. 73 N0AN Hasan

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new AMSAT-DL Online Forum
by Peter Guelzow 05 Oct '18

05 Oct '18

Hello together, I'm sure you've noticed already that our website https://amsat-dl.org has changed a lot. We have now gone one step further and have set up a new online forum at https://forum.amsat-dl.org/ Especially with the upcoming launch of P4-A /Es'hail-2 we want to offer a forum for extensive discussions. Essentially this is a forum, where everyone can report on experiences and knowledge from operating satellites and thereby hep other newly interested radio amateurs to become active and a member of our satellite community. Of course all topics around amateur radio satellites and OSCAR's should be discussed there, appropriate categories and forums were created. If necessary this can be extended at any time and on request. We would be pleased if the new forum is well received and you register there with your callsign (if available) as your name. Of course you can also look around as a "guest". Experienced users can also check in the settings for new entries and have them delivered by eMail if you wish so. In this sense, have fun Peter, DB2OS 1st Chairman Chris, DL7AG, Webmaster

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Re: [amsat-bb] 1957 The keyer?
by Robert Bruninga 05 Oct '18

05 Oct '18

3 Tubes nice... Has someone said how they keyed the CW? Bob -----Original Message----- From: AMSAT-BB <amsat-bb-bounces(a)amsat.org> On Behalf Of Mail Sent: Friday, October 5, 2018 10:40 AM To: Burns Fisher <burns(a)fisher.cc> Cc: AMSAT BB <amsat-bb(a)amsat.org>; JR3MHP <jr3mhp(a)jarl.com> Subject: Re: [amsat-bb] 1957 Google ‘Sputnik 1 Hackaday’ and you will find the Sputnik 1 radio. Yes it used tubes. PA3CNO did a great job of recreating this piece of history. Dan Sent from here. NM3A > On Oct 5, 2018, at 08:45, Burns Fisher <burns(a)fisher.cc> wrote: > > Lots of interesting stuff in the wikipedia article: > https://en.wikipedia.org/wiki/Sputnik_1#Design but it does not say > what the active device was. A 1 watt transmitter in 1957? Must have been > tubes, no? > > An interesting thing I did not know: It was filled with nitrogen and > used a fan to cool off the electronics! > > On Thu, Oct 4, 2018 at 10:34 PM, JR3MHP <jr3mhp(a)jarl.com> wrote: > >> Awesome!! Thank you, Bruce!! >> >> >> What kind of devices did they use for transmitting this signal? I >> wonder transistors were good enough for this frequency, but.... vacuum >> tubes?? >> >> >> Best 73, >> Hiro (JR3MHP) >> _______________________________________________ >> 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. >> Not an AMSAT-NA member? Join now to support the amateur satellite >> program! >> Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb >> > _______________________________________________ > 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. > Not an AMSAT-NA member? Join now to support the amateur satellite program! > Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb _______________________________________________ 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. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb

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FoxTelem Server
by Roy Dean 05 Oct '18

05 Oct '18

is the FoxTelem server down? No updates since 9:12z this morning. -Roy K3RLD

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1957
by Bob- W7LRD 05 Oct '18

05 Oct '18

This day (10/4) in 1957 the first satellite was put in orbit by the Russians. Many of us remember it! The rest is history. 73 Bob W7LRD

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