- AMSAT-BB - mailman.amsat.org

HITSAT in CW mode
by dave 27 Sep '06

27 Sep '06

Hello All, Just heard HITSAT's CW beacon on (0910 UTC from grid QF02) for the first time. Too busy figuring out the errors in my tracking to decode the CW - more CW practice needed too. 73 de David VK5DG

1 0

HITSAT FM heard!
by Mineo Wakita 26 Sep '06

26 Sep '06

I confirmed to HITSAT FM beacon (437.425MHz), which was switched on ONLY in the range of Japan, using OBJECT B 1 29480U 06041B 06267.77198623 +.00016982 +23560-5 +16369-3 0 00196 2 29480 098.3208 276.1335 0282871 123.1344 239.7381 15.30605658000280 I will record its sound at the next pass. --------------------------------------------- Name: Mineo Wakita / JE9PEL, JAMSAT member Mail: ei7m-wkt(a)asahi-net.or.jp URL : http://www.ne.jp/asahi/hamradio/je9pel/ QTH : Yokohama Japan, GL:pm95tj Date: Sep 27, 2006 ---------------------------------------------

1 0

2E1EUB ACTIVE FROM NE.SCOTLAND
by paul robinson 26 Sep '06

26 Sep '06

Hi ,just to let you know ill be on holiday in NE,Scotland (io84ok) from 29,September for about 10 days,and hope to be active from my cottage! on most birds and some hf,ill also try ao51 l/u mode that could be fun with a t81e hh? qrp on 23cm....the location is difficult to work from in some dirrections due to the high mountain ranges.....state side is not easy! but possible.......we will be trying!!! my qrz will be 2M1EUB/P located in the Cargorm mountain range..about 95km west of Aberdeen....Scotland 73 de paul --------------------------------- All new Yahoo! Mail "The new Interface is stunning in its simplicity and ease of use." - PC Magazine

1 0

ax.25
by Davide Vosti 26 Sep '06

26 Sep '06

Hi. I'm part of a student team delevoping ax.25 for a cubesat. I want to ask you if you advice to you this protocol or not, because I read on (http://groups.google.com/group/rec.radio.amateur.digital.misc/browse_thread…) that nowaday IP is used instead of ax.25. Do you have some advice? We are developing ax.25 based on this document (http://www.nj7p.org/AX25.2.2-Jul%2098-3.pdf) but we have found that some information are missing... Do you have some others document? Thanks you for any info! Greetings Davide

3 2

Re: L Band Upconverter
by jules＠g0nzo.co.uk 26 Sep '06

26 Sep '06

Try Kuhne Electronic Gmbh (DB6NT), they have converters for 2mtrs and 70cms IF. Alternativly, if you have a spare HF RX, you could use a cheap RX convreter from 2mtrs down to 10mtrs, on the back of your S band box. Then you could use 2mtrs for the TX converter IF. If you screen well and use low drive on TX, it should be fine. (That's my plan anyhow). Jules From: sco(a)sco-inc.com Subject: [amsat-bb] L Band Upconverter To: AMSAT-BB(a)amsat.org Message-ID: <7.0.1.0.2.20060925223938.068bf208(a)sco-inc.com> Content-Type: text/plain; charset="us-ascii"; format=flowed Does anyone know where I can get a L Band upconverter that will work (IF) on 70 cm? I already have my S Band downconverter and it has a 2m IF so i must have a 70cm IF for the L Band uplink. Les W4SCO

1 0

Anousheh Ansari on Ham Radio
by Peter Guelzow 26 Sep '06

26 Sep '06

Hi everyone, I'm urgently looking for some recordings of Anousheh Ansari via RS0ISS.... She was active yesterday and this morning, calling stations in Iran. I also read a report that someone from Canada had a QSO.. Someone else? Any info and recordings would be very helpful in promoting ham radio, satellites, etc.. 73s Peter, DB2OS

5 4

Another New Rocket Fails
by Tom Clark, K3IO 26 Sep '06

26 Sep '06

>From the "It really IS rocket science" department -- this one is from New Mexico -- see http://news.bbc.co.uk/2/hi/science/nature/5377958.stm 73, Tom

1 0

L Band Upconverter
by sco＠sco-inc.com 26 Sep '06

26 Sep '06

Does anyone know where I can get a L Band upconverter that will work (IF) on 70 cm? I already have my S Band downconverter and it has a 2m IF so i must have a 70cm IF for the L Band uplink. Les W4SCO

2 1

Fw: ARISS weekly report to NASA
by i8cvs 26 Sep '06

26 Sep '06

Hi Peter DB2OS and All Just received now additional news from Perry Klein W3PK about the ARISS activities. 73" de i8CVS Domenico ----- Original Message ----- From: "Perry Klein" <perryklein(a)earthlink.net> To: <i8cvs(a)amsat.org> Sent: Monday, September 25, 2006 7:52 PM Subject: ARISS weekly report to NASA Dom - Here is today's weekly status report to NASA of ARISS activities in the past week. 73, Perry, W3PK ==================================================== ARISS Status September 25, 2006 1. Swiss School Contact Successful Thomas Reiter, DF4TR, spoke with students from the Gymnase Intercantonal de la Broye at the Musee de l'aviation militaire in Payerne, Switzerland on Friday, September 22. Eight students' questions were answered as 50 people gathered around the radio. Another 300 witnessed the contact in the hall where the event was transmitted on screen by amateur television (ATV). Media coverage included newspapers and television. 2. George Washington University Contact Successful Space visitor Anousheh Ansari participated in a contact with her alma mater, George Washington University (GWU) in Washington, D.C. on Friday, September 22. As Ansari was Japanese participant, Dice-K Enomoto's back up on the Soyuz flight, she did not have time to get her U.S. license. Jeff Williams, KD5TVQ, acted as the control operator during the contact. Students from several area schools participated in the event: Eastern Middle School, Silver Spring, Md. (a NASA Explorer School); School Without Walls Senior High School, Washington, D.C.; Stevens Elementary School, Washington, D.C.; and Thomas Jefferson High School for Science and Technology, Alexandria, Va. Six students were able to have their questions answered. The event was held in the GWU Marvin Center amphitheater where approximately 125 people gathered. Television stations Fox TV 5, ABC WJLA 7 and news channel 8 provided coverage of the GWU ARISS contact as did the Washington Post and some other local papers. See: http://www.washingtonpost.com/wp-dyn/content/article/2006/09/22/AR2006092201 496.html Photos of the event may be viewed on: http://artemis.crosslink.net/~pk/AMSAT/AMSAT-ARISS-9-22-06/ The contact video may be seen here: http://video.google.com/videoplay?docid=-1789656846413123353 The university posted a press release of the event. http://my.gwu.edu/mod/calendar/default.cfm?event_id=9660&option=view&day=09/ 22/06 3. ARISS - Illinois Contact, a Success Astronaut Jeff Williams, KD5TVQ, had his own contact scheduled for September 22 with his crew-pick school, Crete-Monee Intermediate Center in Crete, Illinois. Nineteen students asked one question each as the entire student body of 800 children looked on. The Kankakee Amateur Radio Society provided streaming audio via W9AZ 146.94 repeater on http://www.w9az.com. Two television channels, 7 and 2 covered the event. Crete's local newspaper, The Star, posted an online article: http://www.starnewspapers.com/star/spnews/cup/24-cup3.htm 4. Upcoming School Contacts The ARISS team continues to work on scheduling the Expedition 14 school contacts. 5. ISS Makes General Contacts Besides making the scheduled ARISS school contact with George Washington University, Anousheh Ansari has been making general contacts with stations in the USA and Canada using the callsign RS0ISS. News of her contacts has already hit the media. See: http://www.canada.com/nationalpost/news/story.html?id=852560db-b97c-4565-afa f-01a1ca1e4fce&k=82481 6. ARRL Article Covers Hams Onboard ISS ARRL ran a story on the shuttle astronauts visiting the ISS. The amateur radio payload PCSAT2 was picked up during an EVA and returned to Earth. "Five Radio Amateurs Now Aboard ISS; Power Upgrade, PCSat2 Retrieval Set" may be viewed on: http://www.arrl.org/news/stories/2006/09/11/101/?nc=1 7. ARRL Covers Expedition 14 Launch ARRL ran an article on the launch of the Expedition 14 crew. The story, entitled, "Shift Change: New Two-Ham Crew, First Female Civilian Visitor on Way to ISS" may be found at: http://www.arrl.org/news/stories/2006/09/18/102/?nc=1 8. ARRL Press Release on Three ARISS Contacts On Friday, September 22, three ARISS contacts were performed by three different people onboard the ISS. "ARISS Plans Triple Header of Ham Radio School Contacts" may be viewed on: http://www.arrl.org/news/stories/2006/09/21/100/?nc=1

6 8

Re: Why do the amsats get more and more complex?
by Rick Hambly (W2GPS) 26 Sep '06

26 Sep '06

Jason, I can easily imagine how you may have come to the conclusion by listening to some people on amsat-bb that satellites are becoming bigger, more complex and more expensive while not providing you with better services. You might even think that AMSAT officials are not listening. Nothing could be further from the truth. P3E is designed to provide services similar to AO-13 in an effort to make it smaller, cheaper and simpler than AO-40. It also will carry experiments essential to the future P5A mission to Mars. This is a very reasonable increase in complexity for a good purpose. Eagle is intended to be a series of satellites. Eagle has been designed to be smaller, lighter and cheaper than AO-40. Its shape was designed to optimize a low inclination orbit like the one AO-40 attained. This unintended orbit turned out to be very attractive to many users and it provides for orbit stability and much less propulsion, further reducing mission risk. It also carries fewer payloads and these payloads have been specifically chosen to get the best performance for the maximum number of users. Both P3E and Eagle have chosen Software Defined Transponders (SDXs) to implement the "linear transponder" functions for many reasons. Among these are efficiency, stability, linearity, cost, in-flight performance improvement, the ability to simultaneously share the transponder with other modes (Packet, APRS, SMS are possible examples), and the ability to change performance parameters in flight. This choice does not make the satellite bigger, more expensive, or less useful, etc. In fact, it is just the opposite. Eagle will carry a payload that it is hoped will revolutionize Amateur Satellite communications and Ham Radio as a whole. Initially called C-C Rider, I will call it the Advanced Communications Package (ACP) because it no longer uses C-band for both uplink and downlink. This package will be designed to bring satellites and DX to you and to many other Hams who have never been able to use a satellite or operate DX before. This is because the ground station antenna will be small, power levels reasonable, many modes will be supported (from Voice and CW to Video and data communications), the ground station will be affordable and the signal quality will be superior. Much of this is accomplished through the use of digital techniques so it will require all new equipment on the ground. AMSAT will design the ground station equipment and publish everything so you can buy it, copy it, sell it, or build it. The Eagle band plan has been the subject of much discussion, of late. Eagle is still in the design phase and the band plan is not finalized, so don't worry just yet. The confusion was the result of the ACP (C-C Rider) team realizing that they had to find another band for the uplink. They chose S-band for some good reasons but that recommendation is under review by the whole Eagle team and is not yet final. There should be a final announcement at the AMSAT Symposium in a few weeks. I encourage everyone to come to the Symposium and meet your AMSAT officials and learn what is really happening in AMSAT. There is much more I could say but, in summary, the new satellites are getting better in every way compared to the old ones. The future is bright and we need your support and involvement to achieve these goals. Rick W2GPS AMSAT President Subject: [amsat-bb] Why do the amsats get more and more complex? From: Jason White <jason@xxxxxxxxxxxxxxxx> Date: Tue, 19 Sep 2006 10:48:44 -0400 ---------------------------------------------------------- This is intended to be an honest question that I've wanted to ask, but I don't want to spark controversy or long threads that monopolize the reflector. I have a feeling this could go either way, so I'm just asking politely that the thread not go that way! It's not my intent. Anyway, I'm just curious why it seems that every new satellite project proposed seems to be bigger and more complex than the last? I keep hearing about exotic modes and uplink/downlink bands for P3E. Software defined transceivers, etc. etc. and what it looks like to me are more and more failure points. I understand the need to push the limits of technology as a justification for our very existence, but personally I feel like the designs are overly complicated and highly priced. I'm not ready to switch my earth station to SDRs, for instance.. I'm dubious about putting one into orbit.. then again, I'm not skilled enough to make those sorts of decisions. What I'm getting at is that Oscar 7 proved how reliable older technology can be.. For the price of one of the phase 3 birds it seems like several Mode B linear transponder sats could be put up, or a few more FM sats. I personally would much rather see a modest mode B sat in AO-40s intended orbital pattern than to try to wrangle parts for microwave. Did it get too easy for people or something? Wouldn't it be better to separate out some of the more experimental stuff from the old standbys? That way a failure of one whole sat would still leave something usable for the same money spent. My vote would be to piggyback a completely independent analog satellite onto P3E "just in case". Like I said, please, I'm looking for a real, thought out response. I didn't write the above to be a critique or to troll or anything like that, I am just curious because it seems to me, as an outside observer, that after the failure of AO-40 the direction was to go bigger and even more complicated, which left me cold considering what I had done at my station to work AO-40. Even when AO-40 was up I felt it was very odd that time and money were spent on components and systems that were never used (did the solar panels ever deploy?) Yes, I know the sat was damaged, and that explains a good bit of it, but it still felt like some things were wasted. Emphasis on "felt".. I couldn't know the real process that resulted in the decisions made. If someone could help me understand why the direction is the way it is maybe I could get excited about the bigger sats, but I think you get more "bang for the buck" with the smaller less complicated birds. My favorite so far is PCSat I. Mostly off the shelf hardware and I had a very easy time digipeating APRS through it. One of those in an elliptical orbit would be a hoot! 73s, Jason - N1XBP P.S. - One last plea, this isn't a troll! I'm worried people will think it is. _______________________________________________ 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

18 35