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

AO7 A/B
by PY5LF 18 Jul '10

18 Jul '10

Hello I think it's internal clock AO7 changed. Today I got the exact moment when the AO7 changes from A to B. This happened at 23:11:20 UTC, July 17, 2010 I had already noticed this a few days ago. http://www.youtube.com/watch?v=hlSbjjrOJVw 73 PY5LF LUCIANO FABRICIO CURITIBA-PR-BRAZIL GG54JM <http://www.qrz.com/db/py5lf> http://www.qrz.com/db/py5lf <http://www.falautomation.com.br/> www.falautomation.com.br

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SO-50 DEMO REQUEST
by n4csitwo＠bellsouth.net 18 Jul '10

18 Jul '10

Fellow hams, I have a sat demo scheduled here in Orlando for tomorrow morning targeting the 14:01 UTC (10:01 ET) pass of SO-50. I'd appreciate making a few contacts to show how much fun the satellite part of our hobby can be. I don't want to dominant the pass, but a few contacts would be great if anyone can help. 73s, Dave, AA4KN

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TIsat-1 HB9DE new packet collector online
by spacelab＠supsi.ch 18 Jul '10

18 Jul '10

Hello radio amateurs, we appreciate your work and your reports about TIsat-1 HB9DE CubeSat mission. We want to thank you and encourage to follow again our mission. We published a new web application that allow you to translate beacon's packets into relative temperature values and meanwhile to transmit these packet to us if you want. The application can be used either online or downloaded for an offline usage. The link to find it is http://www.spacelab.dti.supsi.ch/beaconcw.html If you want to upload directly the packets, please register to our forum, where you can also ask questions directily to us. If you want only to decode the packets you receive than the application can save formatted log files. Thank you, again! Regards, 73 SUPSI SpaceLab, HB9SRC

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Next "HV Satcom" Net!
by Stuart Balanger 18 Jul '10

18 Jul '10

*Hi All, The next "HV Satcom" Net is this Thursday (7/22) @ 8PM (EDT) (or 2400 UTC) The Echolink node used is: N2EYH-L & the 2 Meter Repeater used is 146.970 MHz. More info: www.hvsatcom.org or: www.wr2abb.org (MBARC Home Page) 73,.Stu Ballinger (WA2BSS;Director;MBARC) PS Also for those going to the Symposium, (Traveling by Rail) There is AMTRAK Service (To Union Sta., & a 2 Block walk from Union Sta. to the Blue Subway line @ Congress & clinton, & that will take you to O'Hare Airport Term. where you can transfer to the free shuttle bus/van (The info "Traveling by rail" was not included in the "Reservation form"! More info (By Rail) go to:www.amtrak.com *

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RES: TISAT
by PY5LF 18 Jul '10

18 Jul '10

Hi Mike I used OBJECT B . Regards PY5LF LUCIANO FABRICIO CURITIBA-PR-BRAZIL GG54JM http://www.qrz.com/db/py5lf www.falautomation.com.br -----Mensagem original----- De: Mike Rupprecht [mailto:[email protected]] Enviada em: domingo, 18 de julho de 2010 03:27 Para: 'PY5LF' Assunto: AW: [amsat-bb] TISAT Hi Luciano, what NORAD Object did you use for tracking TISat (B or E ?) 73, Mike DK3WN -----Ursprüngliche Nachricht----- Von: amsat-bb-bounces(a)amsat.org [mailto:[email protected]] Im Auftrag von PY5LF Gesendet: Sonntag, 18. Juli 2010 04:34 An: 'Mineo Wakita'; amsat-bb(a)amsat.org Betreff: [amsat-bb] TISAT Hello TISAT heard over SA . http://www.youtube.com/watch?v=fSyVSY4IICg 73 PY5LF LUCIANO FABRICIO CURITIBA-PR-BRAZIL GG54JM <http://www.qrz.com/db/py5lf> http://www.qrz.com/db/py5lf <http://www.falautomation.com.br/> www.falautomation.com.br _______________________________________________ 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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AJ9K in EN66
by dlittel tds.net 18 Jul '10

18 Jul '10

I will be vacationing in the Michigan Upper Peninsula from 7/18 to 22 and hope to work the FM sats from EN66, 56, 57 and maybe EN76. Dan AJ9K

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Re: AO-7 Record
by Bob- W7LRD 17 Jul '10

17 Jul '10

When there is vhf/uhf contest going on I occasionally hear a contester on the AO-7 downlink. However due to fact that AO-7 has an inverting band pass the UHF uplink which is USB comes down LSB. This of course is unknown to the contester. Whereas everyone using AO-7 uplinks in LSB so that we receive in USB on the 145mhz downlink. This way I can tell who is the unintentional satellite operator. I think I got that right. 73 Bob W7LRD ----- Original Message ----- From: "James Duffey" <jamesduffey(a)comcast.net> To: "Andrew Glasbrenner" <glasbrenner(a)mindspring.com> Cc: "James Duffey" <jamesduffey(a)comcast.net>, "Amsat-bb BB" <amsAT-BB(a)amsat.org> Sent: Saturday, July 17, 2010 4:20:45 PM Subject: [amsat-bb] Re: AO-7 Record Drew - Thanks for the comments and shedding light on this topic. On Jul 17, 2010, at 3:55 PM, Andrew Glasbrenner wrote: > 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... I did not know this. Thanks for the clarification. Sorry for stating that we were flying a satellite we cannot control and I am sorry for adding to the confusion on this issue. It will not happen again. > 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 you say, I did not say that Mode B was illegal and did not mean to imply that it was illegal. But it does fall outside the general guidelines for amateur satellite operations today and we should consider that issue when we use it on Mode B. 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. > 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. Consider this situation. A multi contest station is looking for QSOs on 70 cm Sunday evening and tunes across someone calling CQ in the uplink passband. The contest station thinks it is a terrestrial station in the contest and calls him. The station calling in the uplink hears the contest station on the satellite downlink and they have a QSO, exchanging signal strengths and grid squares. The contest station logs the contact and moves on. The multistation owner later gets a QSL from the station in the uplink claiming a satellite contact since he copied the contest station on the downlink. THe multistation owner realizes that his multistation has violated the contest rule that prohibits satellite operation in contests. Respecting the rules, he withdraws his submission and asks that it be considered a check log and is out ! of the competition with a very good score. This is an unusual case, I grant you, but I have been "distracted," for want of a better word, a time or two by satellite users in the OSCAR 7 uplink during a contest until I realize that they are not terrestrial stations in the contest, but trying to uplink to Oscar 7. Usually it is obvious, occasionally it is not. No harm done, other than the waste of a few minutes. I suspect that a few others may have had similar experiences. If satellite operators on the 70 cm uplink are aware of their proximity to the 70cm calling frequency, particularly during contests, and call CQ Satellite, and mention that they are on the satellite during the QSO, then the impact of having the AO-7 uplink close to the 432.1 weak signal calling frequency can be minimized. > 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. The Wikipedia entry is pretty much a verbatim quote of the AMSAT satellite summary on the AMSAT page and cites it as a source, which makes sense, so changing the information I quoted above on the AMSAT summary is a good start on getting it changed on Wikipedia. When the citation goes away the Wikipedia entry will have less value. I don't contribute to Wikipedia, but I can learn how to change this if that is what is warranted. It won't help much to change the secondary source, Wikipedia, when the primary source, AMSAT, remains unchanged though. Again Drew, thanks for your comments on this issue. I have revised my thinking on Oscar 7 control. - Duffey -- KK6MC James Duffey Cedar Crest NM _______________________________________________ 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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Re: AO-7 Record
by K8KFJ＠aol.com 17 Jul '10

17 Jul '10

In a message dated 7/17/2010 5:26:13 P.M. Eastern Daylight Time, jamesduffey(a)comcast.net writes: < In the amateur realm, I believe only RS10-RS11 have been turned off, Speaking of the Russian birds, I found a QSL card the other day dated September 2000 for a RS-13 QSO with KØSU in CW. The card shows a 148 MHz uplink and a 29 MHz downlink. The Russian birds were great fun. 73, Gary -K8KFJ- Sat VUCC #125

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NO5X SK
by John Geiger 17 Jul '10

17 Jul '10

For those of you who have worked NO5X on the sats, I am sad to inform you that he became a SK in the past couple of days. I met John twice in person back in May when buying some equipment from him, and he was a great guy. I will miss hearing him on the birds. 73s John AA5JG

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TISAT
by PY5LF 17 Jul '10

17 Jul '10

Hello TISAT heard over SA . http://www.youtube.com/watch?v=fSyVSY4IICg 73 PY5LF LUCIANO FABRICIO CURITIBA-PR-BRAZIL GG54JM <http://www.qrz.com/db/py5lf> http://www.qrz.com/db/py5lf <http://www.falautomation.com.br/> www.falautomation.com.br

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