July 2010 - AMSAT-BB - mailman.amsat.org

Re: AMSAT-BB Digest, Vol 5, Issue 309
by saguaroastro＠cox.net 18 Jul '10

18 Jul '10

>To: "Nick Pugh K5QXJ" <quadpugh(a)bellsouth.net> > Cc: <amsat-bb(a)amsat.org> > Sent: Friday, July 16, 2010 2:20 PM > Subject: [amsat-bb] Re: tisat-1 > It is not listed under the name TiSAt but is listed as "2010-035B" 73, Rick Tejera K7TEJ, DM33vq

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AMSAT 2010 Space Symposium Call for Papers
by Mark Thompson 18 Jul '10

18 Jul '10

AMSAT 2010 Space Symposium Call for Papers ________________________________ The September 1 deadline of the call for papers for the 2010 AMSAT Space Symposium and Annual Meeting is rapidly approaching! So far the Proceedings crew has received two abstracts for papers - thank you! The abstract for your paper does not require any special format. Simply send an e-mail to the Proceedings Editor, K9JKM with the basic information: Author Name, Callsign, and a few sentences that describe your proposed topic. I'll be looking forward to receiving your abstracts in my in-box at k9jkm(a)comcast.net. The Symposium Committee invites proposals for: + Papers for publication in the Proceedings + Symposium Presentations + Poster Presentations + Equipment and Operating Demonstrations These can be on any topic of interest to the amateur satellite community. We request a tentative title of your presentation as soon as possible, with final copy submitted by September 1, 2010 for inclusion in the printed proceedings. To help you prepare your paper the Symposium Committee has posted an author's guide on the AMSAT.org web page: http://tinyurl.com/2djjnmx The 2010 AMSAT Space Symposium and Annual Meeting will be held October 8 - 10 at the Chicago/Elk Grove Holiday Inn which is near O'Hare Airport. 73, JoAnne K9JKM 2010 Symposium Proceedings Editor

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Re: AO-7 Record
by Andrew Glasbrenner 18 Jul '10

18 Jul '10

-----Original Message----- >From: James Duffey <jamesduffey(a)comcast.net> >I based my comments on the AMSAT Satellite Summary of AMSAT Oscar AO-7 located on the AMSAT website. See: > >< http://www.amsat.org/amsat/sats/n7hpr/ao7.html > > >Which contains the following two paragraphs: > >"*Note: Due to changes in Amateur Service and Amateur Satellite Service there are questions as to legality of Amateurs transmitting to AO-7. The uplink frequency predates the WARC '79 allocation of 435-438 MHz by the ITU for the Amateur Satellite Service and places the uplink in 70cm weak signal segment.' > >"Potential users should realize that when they are uplinking to a satellite, they are no longer operating in the Amateur Service but instead operating in the Amateur Satellite Service. Thus they are subject to Amateur Satellite Service rules. Therefore uplinking to AO-7 is possibly illegal since the Amateur Satellite Service is not permitted at 432.1 MHz. Also, since the IARU bandplan has the 432.1 MHz range earmarked as "weak signal" in all three Regions, it would appear that all users trying to access the uplink are also outside the Amateur Satellite Service rules and regulations." > >The AMSAT web page is a prominent return when one searches for Oscar 7 on Google. Thanks for pointing out that these statements >are incorrect, or at the very least, overcautious. Those pages are leftovers from the previous version of the website, and the only way you can get to them is via Google. I have asked Gould and Rick to take them down as you are not the first to point to them as sources of outdated information. > >> As it is an uplink, there is absolutely no ill effect AO-7 can have on terrestrial 432 operations. > >I agree for the most part, AO-7 uplink on 70cm will in general have little effect on 432 operations. But to say it has absolutely >no ill effect is hyperbole. Until you can point to this actually happening, I don't think it's hyperbole at all. I've been around a contest or two (check September's limited rover scores) and I've never had a qso above 432.120. Terrestrial SSB users would even be on the wrong sideband from the sat users. The FCC says it's OK, I'm not going to worry about it until it's a problem. I'll leave it at that, and we can agree to disagree perhaps. 73, Drew KO4MA

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Re: AO-7 Record
by Andrew Glasbrenner 17 Jul '10

17 Jul '10

-----Original Message----- >From: James Duffey <jamesduffey(a)comcast.net> > Although it is a great engineering feat to have our hardware still partially operational after 36 years in orbit, in some sense >it is a bit embarrassing to have hardware in orbit that we cannot control. Fortunately, in AO-7s case the inability to control >the satellite is largely benign. > Let me clarify something here for the record, especially since it keeps coming up. We absolutely DO have the ability to command AO-7, including a command set that will result in the satellite being silenced permanently. There simply is not much operational advantage to it, even when in continuous illumination. The ability to ceaase transmissions is all that is required of us by the FCC; I just hope we never have to do it. You do not have to look to hard to find other amateur satellites that are derelicts though... Additionally, although not stated in this discussion, there is much misconception about the legality of Mode B with the 432 uplink. AMSAT has an FCC waiver that is still in effect, so using the 432 is completely legal for US operators, at least. As it is an uplink, there is absolutely no ill effect AO-7 can have on terrestrial 432 operations. I just noticed a few days ago that the AO-7 entry on wikipedia is 100% wrong on this and needs to be corrected. Maybe someone more familiar with wikipedia than I will do so after seeing this email. 73, Drew KO4MA AMSAT-NA VP Operations

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AO-7 Record
by Peter Portanova 17 Jul '10

17 Jul '10

Hello, Congratulations, Joe and Luciano, on your outstanding, record-setting QSO! We must also give credit to the " Powers of the Heavens Above" who have kept AO-7 communicating with us! 73's Pete WB2OQQ www.massapequanyweather.com

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Sat demo
by wa4hfn＠comcast.net 17 Jul '10

17 Jul '10

Please look for WA4NVM on AO27 pass at 1941 UTC today 17 July 10. Ricky will be giving a demonstration on satellites today at a ham class at the Red Cross building in Memphis, TN. If you work him please give the grid and state so that the students can have a idea of the distance and how it works .He will be using an ELK and a hand held radio Thanks Wa4hfn em55

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oscar.dcarr.org
by Bato, Andras 17 Jul '10

17 Jul '10

Does anyone know what happened to this important and popular website http://oscar.dcarr.org/ ? gl de ha6nn Andras

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TIsat-1 / homepage
by Paolo Ceppi 16 Jul '10

16 Jul '10

Dear AMSAT community, thank you for the number of very appreciated reports you sent about TIsat-1's signals. Keps and other details are on the project webpages, particularly have a look at the mission status page http://www.spacelab.dti.supsi.ch/tiSat1MS.php Please keep on with your feedback, collect and report the char emitted AFTER HI HI HI TISAT along with UTC, location and signal quality (as usual). 73, Paolo Ceppi (HB9TYP)

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tisat-1
by Nick Pugh K5QXJ 16 Jul '10

16 Jul '10

Hi Amsaters Can someone send me the keps or the satellite id number for Tisat-1 Thanks nick Office 337 593 8700 Cell 337 258 2527 Helping UL become a world Class Engineering and Educational School

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Re: New world best distance via AO-7
by Bob- W7LRD 16 Jul '10

16 Jul '10

Way to go gents!! This record probably won't be improved any time soon. However I'll keep trying. If this were easy, everyone would be doing it. Thanks for raising the bar. 73 Bob W7LRD Seattle ----- Original Message ----- From: "Pierre van Deventer" <pierrevd(a)icon.co.za> To: AMSAT-BB(a)amsat.org, ZS-SAT(a)mailman.qth.net Sent: Friday, July 16, 2010 1:54:34 AM Subject: [amsat-bb] New world best distance via AO-7 Congratulations to Luciano PY5LF and Joe K3SZH for breaking the AO-7 distance record. According to the Tiny Locator program the distance is even better than their claim. The distance is 7,843 km this very close to the theoretical maximum of 7,901 (I seem to recall) I don't think this record will be improved upon in a hurry? Well done ! 73, Pierre ZS6BB _______________________________________________ Sent via AMSAT-BB(a)amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb

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