[amsat-bb] Es'HailSat-2 will carry two geostationary “Phase 4” amateur radio transponders !!

2014-03-23 Thread Peter Guelzow
broad beam antennas to provide full coverage over about 1/3rd of the earth’s surface. Precise operational plans will be finalised over the coming months but it is anticipated that only quite simple ground equipment will be required to use this satellite. A team of amateurs, led by Peter Guelzow DB2OS

[amsat-bb] Re: Es'HailSat-2 will carry two geostationary Phase 4 amateur radio transponders !!

2014-03-23 Thread Peter Guelzow
:31, Gary Joe Mayfield wrote: I checked my calendar. It is not April 1st! Peter, Any guess as to the longitude of the satellite? 73, Joe kk0sd -Original Message- From: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On Behalf Of Peter Guelzow Sent: Sunday

[amsat-bb] AMSAT-DL and Bochum Observatory receive signal from retired NASA spacecraft

2014-03-09 Thread Peter Guelzow
see also: http://www.amsat-dl.org/index.php/news-mainmenu-97/199-ice-satellite-received-in-bochum - AMSAT-DL and Bochum Observatory receive signal from retired NASA spacecraft On March 1st and 2nd, 2014 radio amateurs were able to detect the beacon signal from the retired

[amsat-bb] Re: Kick motors on Oscars: How does attitude control work?

2013-09-22 Thread Peter Guelzow
Hi Burns, yes - all Phase 3 satellites use Magnetorquers to control attitude during perigee. They were pulsed by the IHU on-board computer which was running a model of the physics and orbital dynamics to trigger the correct coils at the right moment. This Timing was synchronized with the Sun

[amsat-bb] Re: Gospodin Murphy was right!

2013-07-21 Thread peter . guelzow
Hi David, Normally you would prevent this by mechanical design principle called Poka Yoke. Obviously this was not the case here. See http://novosti-kosmonavtiki.ru/bitrix/components/bitrix/forum.interface/show_file.php?fid=17033width=500height=500 73s Peter DB2OS g0...@aol.com

[amsat-bb] Re: ISS HamTV Frequencies

2013-05-14 Thread Peter Guelzow
Hi Dan, the DVB Encoder and Modulator comes from http://sr-systems.de/content.php?show=Startseitelng=engstyle=std The developers are hams and this stuff is available and used for D-ATV in Germany since several years. 73s Peter DB2OS On 14.05.2013 05:03, Daniel Schultz wrote: I would

[amsat-bb] Re: [Forum] S-Band Downlink auf HEO/GEO noch sinnvoll?

2013-05-02 Thread Peter Guelzow
directions? Under https://www.facebook.com/amsat.deutschland there is a small To vote .. 73s Peter DB2OS - Original Message - From: Peter Guelzow peter.guel...@kourou.de To: AMSAT - Forum fo...@amsat-dl.org Sent: Wednesday, May 01, 2013 8:33 PM Subject: [Forum] S-Band Downlink

[amsat-bb] Re: ITAR news

2012-12-20 Thread Peter Guelzow
, to work together on new exciting projects for international friendship through ham radio. 73s Peter DB2OS Peter Guelzow President AMSAT-DL On 20.12.2012 02:30, Andrew Glasbrenner wrote: http://www.spacepolitics.com/2012/12/18/a-long-awaited-big-win-for-export-control-reform/ 73, Drew

[amsat-bb] Re: North Korea

2012-12-12 Thread Peter Guelzow
very good details and frequency hints: http://38north.org/2012/09/nhansen091212/ 73s Peter ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program!

[amsat-bb] Propulsion on Phase-3 Satellites..

2012-09-26 Thread Peter Guelzow
Hi, Since you brought up politics...all I know is that trying the same thing over and over usually ensures getting the same results. I dont think we are going to see an AO-10,13 or 40 again because of the propulsion issue. I doubt any group is going to let a pyalod on with a motor

[amsat-bb] Re: European Lunar Lander - Call for Declarations

2012-06-02 Thread Peter Guelzow
Check also this discussion from James Miller, G3RUH: http://www.amsat.org/amsat/articles/g3ruh/110.html 73s Peter, DB2OS ___ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now

[amsat-bb] Re: European Lunar Lander - Call for Declarations

2012-06-02 Thread Peter Guelzow
only be possible within a 13.7 day (TBC) window each month, and shall depend on the availability of the ground station. further: the mean power available for an individual payload is expected not to exceed 20W 73s Peter DB2OS On 03.06.2012 00:29, Peter Guelzow wrote: Check also

[amsat-bb] Changes to the IARU Satellite Advisor Region 1, Germany, AMSAT-DL

2012-04-30 Thread Peter Guelzow
Changes to the IARU Satellite Advisor Region 1 I have recommended to the IARU Satellite Adviser that Mike Rupprecht takes over membership of the advisory panel form Norbert Nothoff and I'm happy to notify interested parties that he has agreed to appoint Mike, DK3WN as a panel member. He has

[amsat-bb] Re: Please Help Compass-1 ?

2012-02-29 Thread Peter Guelzow
Hi Andy, have a look here: http://www.dk3wn.info/p/?p=26334 73s Peter DB2OS On 29.02.2012 16:40, Andy Kellner wrote: Hello, I've noticed that the Masat-1 Beacon message changed to Please help Compass-1. Does somebody know what is meant by that ? I've checked some sources and as far

[amsat-bb] Re: Phase 3 Express Launch Opportunities?

2012-01-29 Thread Peter Guelzow
On 28.01.2012 01:34, Andrew Glasbrenner wrote: Back to P3E. I like David's idea. I'd like even more to hear something similar from Peter or Hartmut. I've donated to P3E in the past, and voted as a BOD member to help fund their lab out of the -NA reserves several years ago. I love the

[amsat-bb] Re: 9 cubesats on board Vega

2011-12-09 Thread Peter Guelzow
Hi Stefan and all, First of all, English is not my mother language. Please apologize.. Also I'm not a politician who thinks twice about what he is saying, in particular if you have to give a talk under time pressure and not in you native language. This is also life.. I have to live with it.. So

[amsat-bb] Re: 9 cubesats on board Vega

2011-12-09 Thread Peter Guelzow
satellite! Let's have us go back to building and launching satellites, the big ones and the small ones. I believe we are all on the same page and the more diverse the satellites are the better for all of us. Good luck with P3E! Stefan On Fri, Dec 9, 2011 at 3:22 PM, Peter Guelzow peter.guel

[amsat-bb] Re: 9 cubesats on board Vega

2011-12-08 Thread Peter Guelzow
On 08.12.2011 16:17, Stefan Wagener wrote: very simple, politics. AMSAT-DL's leadership has openly denouced Cubesats. So two of the biggest AMSATs either can't or don't want to. Talk about a pathetic situation for our community. Stefan VE4NSA I don't know what kind of problem you have

[amsat-bb] Re: Charge for Satellite Tracking?

2011-11-01 Thread Peter Guelzow
Hi Graham, this is very good news indeed and I'm excited to hear that you will use it on FUNcube and UKcube.. the principals of ranging are easy to understand and I think it would be an ideal educational tool to learn about orbital mechanics, Kepler's law, etc., even how GPS works.. argh... we

[amsat-bb] Re: Charge for Satellite Tracking?

2011-10-31 Thread Peter Guelzow
On 31.10.2011 21:17, jmfranke wrote: To paraphrase Yoda in Star Wars: Whine not. Do. Or do not. There is no whine. John WA4WDL or just do it yourself http://www.amsat.org/amsat/articles/g3ruh/123.html Sorry - I could not resist..old AMSAT technology,

[amsat-bb] AMSAT-DL Symposium and AGM on May 14 in Bochum

2011-05-12 Thread Peter Guelzow
Dear All, just as a reminder.. If you are not too far away, you're welcome to join in. http://translate.google.de/translate?u=http%3A%2F%2Fwww.amsat-dl.org%2Findex.php%2Fnews-mainmenu-97%2F155-amsat-dl-symposium-und-jhv-2011sl=detl=enhl=ie=UTF-8 For those who can't attend, we will publish a

[amsat-bb] Re: CQ : Information on P3E?

2010-11-18 Thread Peter Guelzow
Hi David, the mass will be around the same as AO-10 and AO-13, same S/C structure, same fuel tank.. Launch Mass: ~150 kg 73s Peter DB2OS On 18.11.2010 20:35, g0...@aol.com wrote: Hi all. I am trying to find some information on P3E. I wonder if anyone can help? Specifically, I'm

[amsat-bb] Re: IKAROS Solar Sail Successfully Deployed

2010-06-12 Thread Peter Guelzow
Hi Reid, you can try to listen on 8 GHz like it's done at Bochum and by some people from the Amateur DSN group with smaller dishes. http://www.amsat-dl.org/index.php/news-mainmenu-97/181-akatsuki-und-ikaros-in-bochum-empfangen http://www.uhf-satcom.com/amateurdsn/planetc/ 73s Peter On

[amsat-bb] Re: Galileo Contract Awarded

2010-01-08 Thread Peter Guelzow
The answer is very simple: There will be - no Soyuz test launches - from Kourou It's a proofed and robust rocket. There are already commercial customers booked for the first flight.. Otherwise P3-E would be on it.. ;-) 73s Peter DB2OS On 08.01.2010 17:51, Bill Ress wrote: Aaah - good

[amsat-bb] Re: So is P3E essentially dead at this point?

2009-11-10 Thread Peter Guelzow
Hi Michael and Alan, I can only repeat what Alan already said... Work on P3-E is continuing and we are busy looking for launch possibilities and other ways for financing it, i.e. on coat-tails of the P5 Mars Mission. This is our top priority at the moment and that's why you may not have heard

[amsat-bb] Mesbah-2

2009-10-19 Thread Peter Guelzow
http://www.astronautix.com/craft/mesbah2.htm ___ Sent via amsat...@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings:

[amsat-bb] Re: Can we get them to fix AO-40 first then?

2009-10-17 Thread Peter Guelzow
Hi Gordon, such a fuse would not prevent a battery from an internal short-cut in one or more cells... that's in fact what happened to AO-40. Also you have to make such a failsafe feature really fail safe, so that it does not hit you in the back if it fails.. These kind of things, like Watchdogs,

[amsat-bb] Re: Can we get them to fix AO-40 first then?

2009-10-15 Thread Peter Guelzow
Hi Samudra et all, very interesting article and links you've sent out. So far, I did not heard about attempts to take photographs, at least not in the public. However, there is no reason to believe that the satellite disintegrated, since there are now other objects tracked around it. The command

[amsat-bb] Re: Can we get them to fix AO-40 first then?

2009-10-15 Thread Peter Guelzow
Peter Guelzow wrote: Hi Samudra et all, very interesting article and links you've sent out. So far, I did not heard about attempts to take photographs, at least not in the public. However, there is no reason to believe that the satellite disintegrated, since there are now other objects tracked

[amsat-bb] Re: Can we get them to fix AO-40 first then?

2009-10-15 Thread Peter Guelzow
Hi Robert, that's indeed the big question... We do not know in which attitude the spacecraft is.. is it still spinning very slowly or tumbling? What is the Solar-ß-Angel? If the S/C has a good orientation to the sun and the battery opens, than there should be enough power to operate the IHU