July 2012 - AMSAT-BB - mailman.amsat.org

435-438 MHz Quadrifilar Helix for sale
by Stefan Wagener 23 Jul '12

23 Jul '12

If interested, I have an UC-UHF Amateur Satellite Antenna for sale. This is a professional, totally encapsulated Quadrifilar Helix for 70cm. It is the 50W TX version! See: http://www.antennas.us/store/p/229-UC-4364-328-UHF-Amateur-Satellite-Antenn… Will sell for $75 including shipping to US. Stefan, VE4NSA On Mon, Jul 23, 2012 at 2:12 PM, <tokens(a)myranch.com> wrote: > Anyone have one they are willing to sell? > > Many thanks! > > 73 Al W8KHP > _______________________________________________ > 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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Sally Ride
by Clint Bradford 23 Jul '12

23 Jul '12

July 23, 2012 David Weaver Headquarters, Washington 202-358-1600 david.s.weaver(a)nasa.gov RELEASE: 12-252 NASA OFFERS CONDOLENCES ON THE PASSING OF PIONEERING ASTRONAUT SALLY RIDE WASHINGTON -- In a space agency filled with trailblazers, Sally K. Ride was a pioneer of a different sort. The soft-spoken California physicist broke the gender barrier 29 years ago when she rode to orbit aboard space shuttle Challenger to become America's first woman in space. "Sally Ride broke barriers with grace and professionalism -- and literally changed the face of America's space program," said NASA Administrator Charles Bolden. "The nation has lost one of its finest leaders, teachers and explorers. Our thoughts and prayers are with Sally's family and the many she inspired. She will be missed, but her star will always shine brightly." "Sally was a personal and professional role model to me and thousands of women around the world," said NASA Deputy Administrator Lori Garver. "Her spirit and determination will continue to be an inspiration for women everywhere." Ride's contribution to America's space program continued right up until her death at age 61 this week. After two trips to orbit aboard the shuttle, she went on to an award-winning academic career at the University of California, San Diego, where her expertise and wisdom were widely sought on matters related to space. She holds the distinction of being the only person to serve as a member of both investigation boards following NASA's two space shuttle accidents. She also served as a member of the Review of U.S. Human Spaceflight Plans Committee in 2009 which informed many of the decisions about NASA's current human spaceflight programs. However, Ride's place in history was assured on June 18, 1983 when she rocketed into space on Challenger's STS-7 mission with four male crewmates. "The fact that I was going to be the first American woman to go into space carried huge expectations along with it," Ride recalled in an interview for the 25th anniversary of her flight in 2008. "That was made pretty clear the day that I was told I was selected as a crew. I was taken up to Chris Kraft's office. He wanted to have a chat with me and make sure I knew what I was getting into before I went on the crew. I was so dazzled to be on the crew and go into space I remembered very little of what he said." "On launch day, there was so much excitement and so much happening around us in crew quarters, even on the way to the launch pad," Ride said. "I didn't really think about it that much at the time -- but I came to appreciate what an honor it was to be selected to be the first to get a chance to go into space." Ride joined NASA as part of the 1978 astronaut class, the first to include women. She and five other women, along with 29 men, were selected out of 8,000 applicants. The class became known as the "Thirty-Five New Guys" and reported to the Johnson Space Center the next summer to begin training. Ride trained for five years before she and three of her classmates were assigned to STS-7. The six-day mission deployed two communications satellites and performed a number of science experiments. Following that historic flight, Ride returned to space on another shuttle mission, STS-41G in 1984. The 8-day mission deployed the Earth Radiation Budget Satellite, conducted scientific observations of Earth, and demonstrated potential satellite refueling techniques. She was assigned to a third flight, but transitioned to a role on the Rogers Commission that investigated the Challenger accident after that shuttle was lost in January 1986. When the investigation was completed, she accepted a job as a special assistant to the NASA administrator for long range and strategic planning. Ride left NASA in 1989 to join the faculty at the University of California, San Diego, as a professor of physics and director of the University of California's California Space Institute. In 2001, she founded her own company, Sally Ride Science, to pursue her long-time passion of motivating girls and young women to pursue careers in science, math and technology. A native of Los Angeles, Ride graduated from high school there in 1968 and enrolled at Stanford University. At Stanford, she earned four degrees, including a doctorate in physics in 1978. She also was an accomplished athlete who played varsity tennis at Stanford after being nationally ranked as a youth. Ride received numerous honors and awards during the course of her career. Most notably, she was inducted into the National Women's Hall of Fame and the Astronaut Hall of Fame, and received the Jefferson Award for Public Service, the von Braun Award, the Lindbergh Eagle, and the NCAA's Theodore Roosevelt Award. -end-

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137MHz Quadrifilar Helix
by tokens＠myranch.com 23 Jul '12

23 Jul '12

Anyone have one they are willing to sell? Many thanks! 73 Al W8KHP

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Electrodynamic Tether Propulsion
by Trevor . 23 Jul '12

23 Jul '12

The CubeSat Tethersat, planned to launch July 2013, aims to test electrodynamic tether propulsion. See http://www.uk.amsat.org/?p=9165 73 Trevor M5AKA AMSAT-UK International Space Colloquium takes place Guildford Sept. 15-16 http://www.uk.amsat.org/colloquium/twelve AMSAT-UK News on Twitter: http://twitter.com/AMSAT_UK ----

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Successful Test Of Inflatable Aeroshell
by B J 23 Jul '12

23 Jul '12

http://www.nasa.gov/home/hqnews/2012/jul/HQ_12-250_IRVE-3_Launch.html http://www.nasa.gov/offices/oct/game_changing_technology/game_changing_deve… 73s Bernhard VA6BMJ @ DO33FL

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Olympic Flagship Amateur Satellite Operation
by GW1FKY＠aol.com 23 Jul '12

23 Jul '12

Hi all, With reference to my posting to the Amsat news bulletin quoting a restriction zone imposed effecting the the amateur VHF/UHF bands for the London Olympics. I appears that I need to clarify my statement regarding operation via the amateur satellites. The following was posted to me: "There is no problem with 2O12L using 435 MHz, it's 432 MHz that they cannot use". Thus meaning that AO -7 cannot be used for mode "B" operation within the imposed zone of course. Operation on other amateur satellites should therefore be possible. Apologies. Ken Eaton GW1FKY Amsat -UK Amasat NA

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SatPC32 Question
by Kelley 22 Jul '12

22 Jul '12

Satellite newby here, trying to setup a station... For all you SatPC32 users, a question. I'm using the software with 2 radios. One is an Icom IC-706MKIIG, the other is a Icom IC-746. While the 706 covers vhf and uhf, the 746 only covers vhf. The way my version of SatPC32 is set, it tries (depending on the satellite) to set the 746 to uhf. I suspect there is a way to tell the software that a radio can only do vhf, but can't seem to find where to do that. Anyone know? Thanks, -- Kelley - WØRK

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Want to buy m2 70 cm eggbeater
by Lawn, Richard 22 Jul '12

22 Jul '12

Let me know if anyone had a m2 70cm eggbeater they want to sell. I'm tired of working with these home brewed antennas! The weather gets to them too easily and my 2meter m2 eggbeater works great! Rick W2JAZ Sent from my iPad http://RickLawn.com

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Re: FO-29
by WILLIAMS MICHAEL 22 Jul '12

22 Jul '12

Rick, FO-29 has a strong CW beacon at 435.795 +/- Doppler. It's down there by itself and easy to find. Also most downlink signals are concentrated and very strong around 435.850 +/- 10 midway in the pass band. Are you working or hearing any other sats? GL Mike K9QHO

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Re: TH-D7 power modules repair project
by PA3GUO 22 Jul '12

22 Jul '12

Hi Ivo, Excellent documentation and pictures. Well done - will surely come im one day as very useful (hope not though :-)) Henk, PA3GUO

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