April 2008 - Eagle (INACTIVE) - mailman.amsat.org

Re: Project Namaste mailing list invitation - AMSAT ground station
by Michelle 29 Apr '08

29 Apr '08

Thank you Frank, I will invite John to join the effort and the list and I look forward to talking to him more about his ideas and design! More soon,-Michelle W5NYV ----- Original Message ---- From: Frank Brickle <brickle(a)pobox.com> To: Michelle <w5nyv(a)yahoo.com> Cc: eagle(a)amsat.org Sent: Tuesday, April 29, 2008 9:17:19 AM Subject: Re: [eagle] Project Namaste mailing list invitation - AMSAT ground station Excellent. In that case I'd like to suggest inviting John Melton, g0orx/n6lyt to join also, since he has already done a very significant amount of work -- basically, it's done, and has been for about a year -- in bringing up the operating environment and basic application on the likely handheld processor. His email is John.Melton(a)sun.com. He'll be at Dayton, staying in the AMSAT hotel block. 73 Frank AB2KT

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Re: Project Namaste mailing list invitation - AMSAT ground station
by Michelle 29 Apr '08

29 Apr '08

Namaste includes all ground station efforts that serve Eagle and Intelsat ride-along ACP packages. -Michelle W5NYV Potestatem obscuri lateris nescis. ----- Original Message ---- From: Frank Brickle <brickle(a)pobox.com> To: Michelle <w5nyv(a)yahoo.com> Cc: eagle(a)amsat.org Sent: Tuesday, April 29, 2008 9:05:45 AM Subject: Re: [eagle] Project Namaste mailing list invitation - AMSAT ground station Hi Michelle -- Presumably we're talking here about *both* terrestrial stations, the high-bandwidth fixed station and the low-bandwidth handheld one? 73 Frank AB2KT

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Project Namaste mailing list invitation - AMSAT ground station
by Michelle 29 Apr '08

29 Apr '08

Greetings Eagle! Please consider yourself invited to join the mailing list for Project Namaste, the AMSAT ground station effort. http://amsat.org/mailman/listinfo/namaste-dev This list is for communicating about the development effort to design and build a ground station that will serve Eagle and the Intelsat ride-along opportunity. Your time and efforts are greatly appreciated, and I look forward to working with each of you. -Michelle Thompson W5NYV Sit vis vobiscum

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JAXA Free Ride Announced
by JoAnne Maenpaa 29 Apr '08

29 Apr '08

JAXA is offering a free ride: http://www.universetoday.com/2008/04/28/looking-for-a-free-ride-to-venus/ -- 73 de JoAnne K9JKM k9jkm(a)amsat.org

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Re: [suitsat2] RF update
by Bob McGwier 27 Apr '08

27 Apr '08

Ivan: When Meghan was young, she suffered from this. It was almost to the point where we were going to give up emotionally and then AdVair was introduced. Meghan went from suffering to a soccer team star, on the Olympic development team, member of the fifth ranked high school team in the nation, fourth ranked private club in the nation, and second twice in club finals in New Jersey behind the number 1 ranked team in the nation (poor us) twice. When at the end of her Junior season at her private school, playing a "no one" game, she destroyed her ankle, it was the end of soccer for her. She knew by Christmas it was over. In the spring semester, she added AP courses, and took AP all senior passing five courses with 4 and two with 5's. She is now the second ranked student in Neuroscience at NYU. Her SAT's stank (well, 90% percentile) and she confessed that she had trouble with reading speed. I had her tested and she has dyxlexia. These SAT's scores prevented her from getting early admission the school of her choice, late admission to several Ivy's but NYU gave her admission the day after the arrival of her transcript and some scholarship money. She said "I am going where I am wanted and living in NYC would be great" and that was the end of me whining about any of this. She met and fell in love with the son of a senior manager at Merck pharmaceuticals who now is the fastest being promoted new analyst at Black Rock. http://n4hy.smugmug.com/gallery/2308316_ExrWn#120662459_Vf8ec-A-LB NEVER give up on them. Never let them feel sorry for themselves and you don't either. With love and patience, children are just amazingly resilient. You have my best wishes and I am hoping for all the best for you and your daughter. Now ;-) I need my RF. I cannot tell you how happy I am that you and Tom Clark are working together. I am 54. Tom has been my mentor, friend, almost father figure since I was in my early 20's. Every single thing the man ever told me to do, turned into a life. I have led several of them successfully because of his advice. ;-). I have had more than my fair share maybe but I try to use them to the fullest possible extent for good. When I did not seriously consider his advice, it was a disaster. Consider yourself forewarned. I am going to be incommunicado starting Monday, 4/29 until June 5. I will be worthless until June 10. Tom Clark, Barry Baines, and Rick Hambly have agreed to act in my stead on engineering matters. They have my complete confidence. When I return, we will decide if I can continue my duties as the VPE and should it be necessary, we will conduct an orderly transision. I serve at the pleasure of the board, and I will continue to do so until we agree I should go. For the rest of you, I insist that we have meetings to accomplish several tasks: 1) Complete a total plan for build of the ACP and ground terminal prototypes and follow through on the planning of the San Diego experiments. Jan King wishes to support this meeting in person and will fly from Europe if we give him sufficient notice. I suggest an early meeting on ACP while I am gone and the "with Jan and a full team" when I return. 2) Suitsat engineering needs a meeting. That is in the works. It needs to happen ASAP. Tom Clark has been asked by me to represent AMSAT technical to what appears to be an important meeting of the Technology Task Force at Dayton. Please cooperate with him in the preparation for this which is entirely separate from the AMSAT talks. When I return, I want to move out and build out these ACP experiments. They are absolutely key to our success in getting on Intelsat in my opinion. I cannot even get out executive to schedule further meetings with Intelsat. I would have taken a battering ram to the door but such is the lack of confidence in us. We must overcome this to succeed. Those are the stakes. Barry will be given a more detailed list of people, plans, etc. today in writing. My best wishes to all of you while I am gone. Bob N4HY Barr Ivan Galysh wrote: > Hello, > > I am still working on the RF. My 2 year old is finally recovering. We > spent the week going to doctors almost every day to track her progress > and adjust various medications. We had to change the maintenance > medicine and now are backing off of the other medications. > > I finally got the crystals in. I tried putting one into my version of > a collpitts oscillator and get some strange behavior. I was not able > to make John's butler oscillator work but that may be due to how it > was dead bugged. I laid out John's design on a PCB and ordered one to > be delivered by Wednesday. I'll build it up and try to get it working. > > In the mean time, I have the first IF done and going through the 45 > MHz SAW filter. The output is at -30 dBm going into the second mixer. > That is where I am stuck with no second sig gen or working oscillator. > What I plan to do today is build up the final amplifier chain and > temporarily insert a 145,9375 MHz carrier to test up to the final. > > The receiver is ready except for the LO. I can attach a coax with an > SMA to allow for an external LO from a sig gen. If you want, I can > mail it with instruction to whoever wants to at start testing the > receiver side. > > > Ivan > > > > _______________________________________________ > suitsat2 mailing list > suitsat2(a)lists.tapr.org > https://lists.tapr.org/cgi-bin/mailman/listinfo/suitsat2 >

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AMSAT Goes to the Races -- April 27
by Tom Clark, K3IO 21 Apr '08

21 Apr '08

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WARNING!!! DMHO -- A threat to you and the environment
by Tom Clark, K3IO 01 Apr '08

01 Apr '08

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Required reading
by Bob McGwier 01 Apr '08

01 Apr '08

Phil Karn and I used this series when we were doing some calculation and now Chris Bartram (Mutek front end fame and uwSDR founder) pointed this series out. There appears to have a new section added: SDR in deep space. This is a very very important link for RF communications engineers dealing with space matters. http://descanso.jpl.nasa.gov/Monograph/mono.cfm Bob

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