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CX2SA > SATDIG 21.07.13 20:48l 1174 Lines 37848 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. AO-7 mode B (Roland Zurmely)
2. Re: AO-7 mode B (Paul Stoetzer)
3. AMSAT-UK Colloquium Videos Now Available Online (M5AKA)
4. Fwd: AMSAT-UK Colloquium Videos Now Available Online
(Mark Thompson)
5. ANS-202 (Joe Spier)
6. Gospodin Murphy was right! (Alan)
7. 1/2 Wave "cavity" filter design? (Robert Bruninga)
8. Re: Gospodin Murphy was right! (g0mrf@xxx.xxxx
9. Re: Gospodin Murphy was right! (Greg D.)
10. Re: Gospodin Murphy was right! (peter.guelzow@xxxxxx.xxx
----------------------------------------------------------------------
Message: 1
Date: Sat, 20 Jul 2013 13:39:44 -0700 (PDT)
From: Roland Zurmely <py4zbz@xxxxx.xxx>
To: AMSAT <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] AO-7 mode B
Message-ID:
<1374352784.71213.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
Very week signal !... on orbit #177000 over Brazil, at 20:20 UTC.?
Problem with solar panels ? or illumination ?
QSO with PU2RAS.
73 de Roland PY4ZBZ
------------------------------
Message: 2
Date: Sat, 20 Jul 2013 16:50:27 -0400
From: Paul Stoetzer <n8hm@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: AO-7 mode B
Message-ID: <51EAF813.9040406@xxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
At 20:20, it had been in the sun for 26 minutes. Perhaps it wasn't yet
completely illuminated.
73,
Paul, N8HM
On 7/20/2013 4:39 PM, Roland Zurmely wrote:
> Very week signal !... on orbit #177000 over Brazil, at 20:20 UTC.
>
> Problem with solar panels ? or illumination ?
>
> QSO with PU2RAS.
>
> 73 de Roland PY4ZBZ
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. 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
------------------------------
Message: 3
Date: Sat, 20 Jul 2013 23:34:09 +0100 (BST)
From: M5AKA <m5aka@xxxxx.xx.xx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] AMSAT-UK Colloquium Videos Now Available Online
Message-ID:
<1374359649.27705.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Thanks to the hard work of volunteers from the British Amateur
Television Club (BATC) videos of the presentations given to the AMSAT-UK
International Space Colloquium held in Guildford, July 20-21, 2013 are
now available online.
See http://amsat-uk.org/2013/07/20/amsat-uk-colloquium-videos-now-available/
Live Webcast of International Space Colloquium continues Sunday, July 21
http://amsat-uk.org/2013/07/18/webcast-of-international-space-colloquium/
The Colloquium schedule (times in BST, GMT+1) can be seen at
http://tinyurl.com/2013ColloquiumSchedule
----
73 Trevor M5AKA
AMSAT-UK website http://amsat-uk.org/
Facebook https://www.facebook.com/pages/AMSAT-UK/208113275898396
Twitter https://twitter.com/AMSAT_UK
----
------------------------------
Message: 4
Date: Sat, 20 Jul 2013 18:57:51 -0700 (PDT)
From: Mark Thompson <wb9qzb_groups@xxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Fwd: AMSAT-UK Colloquium Videos Now Available
Online
Message-ID:
<1374371871.47223.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
?
----- Forwarded Message -----
From: MI5AKA <m5aka@xxxxx.xx.xx>
To: Digital ATV Group <DigitalATV@xxxxxxxxxxx.xxx>
Sent: Saturday, July 20, 2013 5:50 PM
Subject: [DigitalATV] AMSAT-UK Colloquium Videos Now Available Online
?
Thanks to the hard work of volunteers from the British Amateur
Television Club (BATC) videos of the presentations given to the AMSAT-UK
International Space Colloquium held in Guildford, July 20-21, 2013 are
now available to download or watch online.The ISS DATV presentation is at
the end of the Columbus Lifecycles video.See
http://amsat-uk.org/2013/07/20/amsat-uk-colloquium-videos-now-available/Live
Webcast of International Space Colloquium continues Sunday, July 21
http://amsat-uk.org/2013/07/18/webcast-of-international-space-colloquium/
The Colloquium schedule (times in BST, GMT+1) can be seen
athttp://tinyurl.com/2013ColloquiumSchedule
----73 Trevor M5AKAAMSAT-UK website http://amsat-uk.org/Facebook
https://www.facebook.com/pages/AMSAT-UK/208113275898396Twitter
https://twitter.com/AMSAT_UK----
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Message: 5
Date: Sat, 20 Jul 2013 23:35:17 -0700
From: Joe Spier <wao@xxx.xxx>
To: ans@xxxxx.xxxx amsat-bb@xxxxx.xxx
Subject: [amsat-bb] ANS-202
Message-ID: <51EB8125.4010805@xxx.xxx>
Content-Type: text/plain; charset=windows-1252; format=flowed
AMSAT NEWS SERVICE
ANS-202
The AMSAT News Service bulletins are a free, weekly news and infor-
mation service of AMSAT North America, The Radio Amateur Satellite
Corporation. ANS publishes news related to Amateur Radio in Space
including reports on the activities of a worldwide group of Amateur
Radio operators who share an active interest in designing, building,
launching and communicating through analog and digital Amateur Radio
satellites.
The news feed on http://www.amsat.org publishes news of Amateur
Radio in Space as soon as our volunteers can post it.
Please send any amateur satellite news or reports to:
ans-editor at amsat.org.
In this edition:
* 2013 AMSAT-NA Board of Directors Ballot Mailed July 15th
* Space Station ARISS Software Upgraded by Student For Students
* ARRL Teacher's Institute in Wireless Technology makes Satellite Contacts
* UKube-1 with Amateur Radio Transponder may launch in October
* ARISS Contact with Boy Scouts of America, 2013 National Jamboree, K2BSA,
Mount Hope, WV
* ARISS Contact with Colegio Urugua, El Pinar, Uruguay
* ARISS Contact with Scuola Italiana di Montevideo (SIM), Montevideo,
Uruguay
* ARISS Contact with ESA Space Camp 2013, Radstadt, Austria
* Satellite Shorts From All Over
SB SAT @ AMSAT $ANS-202.01
ANS-202 AMSAT News Service Weekly Bulletins
AMSAT News Service Bulletin 202.01
From AMSAT HQ SILVER SPRING, MD.
July 21, 2013
To All RADIO AMATEURS
BID: $ANS-202.01
------------------------------------------------------------------------------
-
2013 AMSAT-NA Board of Directors Ballot Mailed July 15th.
This year there are eight candidates running for the AMSAT-NA Board of
Directors. The four candidates receiving the highest number of votes
will be seated as voting Board Members with two year terms. The two
candidates receiving the next highest number of votes will be
non-voting Alternate Board Members with terms of one year. Please
vote for no more than four candidates.
Ballots were mailed to members in good standing by July 15th, and
must be returned to the AMSAT-NA office no later than the close of
business on September 15th, 2013. If you have not received your ballot
by August 5th, please contact the AMSAT Office. Ballots sent to
members outside North America are automatically sent via air mail. It
is suggested that they be returned the same way.
AMSAT-NA Board candidates in alphabetical order by last name:
Barry Baines, WD4ASW
Alan Biddle, WA4SCA
Steve Coy, K8UD
Frank Griffin, K4FEG
Mark Hammond, N8MH
Brian Klofas, KF6ZEO
JoAnne Maenpaa, K9JKM
Tony Monteiro, AA2TX
[ANS thanks the AMSAT Office for the above information]
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Space Station ARISS Software Upgraded by Student For Students
Nolan Replogle hasn't yet had the chance to speak with an astronaut, but he
would sure like to. And now, thanks in part to the work he did as a NASA
intern, other students around the world will have a better chance for
opportunities to do just that-have live contact with International Space
Station (ISS) astronauts.
"Yeah, I'd love to talk to astronauts! Who wouldn't?" said Replogle. "I
think
it's really cool! I can imagine it really helps inspire a lot of kids. I
think
that's the main purpose [of the ISS Ham Radio project], to inspire and
engage
kids to learn about space exploration."
Replogle interned with the Education Projects Office at NASA's Johnson Space
Center in Houston from January to April. His role was to update the planning
software for the Amateur Radio on the International Space Station (ARISS),
which is used to help schedule contact events.
"I brought Nolan on board to upgrade the current ARISS mission planning
software, which was critical for scheduling," said Jane Gensler, former
manager
of the Education Projects Office. "The software was one-fault tolerant,
outdated, user and time intensive. We wanted to update it to something
that was
user-friendly with a graphic user interface, efficient and with reduced user
error where possible."
The original software's lack of a user interface meant that people needed to
input data directly into text files, and then run the program to see if it
worked. As a computer engineering major at Oklahoma State University,
Replogle
quickly got to work using his programming skills to create a more
user-friendly
interface for the software. Replogle named the upgraded software ARISS
Assistant (ARRISA).
"The software was virtually impossible to use, unless you spent days and
days
studying it," said Replogle.
"The developer didn't develop it to be distributed, but for his own use, so
for that reason he was the only one who really knew how to use it. It was
convoluted in a lot of ways, and the technology was outdated. So, my
goal was
to make it easier to use to save time. The most challenging part was
trying to
interpret the original author's code and program, because I had to
understand
that to translate it to this new technology."
Now, with Replogle's updates, there is a graphic user interface that allows
users to click on buttons to enter information into text boxes. This
automated
feature is more intuitive and requires a lot less data entry.
An added feature of the software allows for more efficient integration
of the
data generated by ARISSA to planning tools used by NASA's Trajectory
Operations
Officer (TOPO) console position in the Mission Control Center at
Johnson. The
TOPO uses data from ARISSA as a baseline for upcoming space station
contacts,
updating the inputs for accuracy as the event date approaches.
"I was broad in my description to Nolan of the project, not understanding a
lot of the programming and steps," said Gensler. "He took the initiative to
make it his project and took it to a level that I could not have
envisioned -
not being an expert in this area."
NASA's Teaching from Space Office works in coordination with the global
ARISS
volunteer team for the ISS Ham Radio project to put students in touch with
astronauts orbiting 220 miles above the schools on Earth. The students have
about 10 minutes to ask the astronauts aboard the station space-related
questions about living in microgravity, science, technology and any
number of
other curiosities that come from their creative minds.
To plan for these contacts, organizers have to predict the location of the
space station in orientation to the ground. With this knowledge, they
pinpoint
the dates, times and geography of possible connections. This is where the
ARRISA software comes into play as a forecasting tool.
"Everybody I've shown it to says it looks pretty impressive," said Replogle.
"I demonstrated it to various groups from ARISS, and they said they were
excited about using it."
With Replogle's upgrades, Gensler anticipates increases in efficiency and
reduced errors, which may lead to more contact opportunities between
students
and crews of the space station.
Upcoming contacts currently include the Boy Scouts of America 2013 National
Jamboree in Mt. Hope, W. Va., scheduled to take place during the week of
July
18-23. ARISS planners use the software to identify multiple options for
exact
dates and times; they finalize the event one week before the contact.
"The undergraduate student workforce is amazing and can bring innovation,
creativity and efficiencies into our programs for little cost with big
benefits," said Gensler.
"I'm not a software engineer or a computer programmer, but I can find
someone
like Nolan who is passionate about programming and wants to work for
NASA and
make a positive difference in our products and services. His success in
upgrading the mission planning system in such a short timeframe makes me
want
to bring more interns in behind him to continue implementation and
developing
even more upgrades in other areas."
U.S. education organizations interested in hosting an ARISS
communication can
contact NASA's Teaching from Space Office for proposal information.
International schools should apply via the ARISS website for consideration.
http://www.space-travel.com/reports/
Space_Station_ARISS_Software_Upgraded_by_Student_For_Students_999.html
[ANS thanks Jessica Nimon,ISS Science News,for the July 18 article]
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ARRL Teacher's Institute in Wireless Technology makes Satellite Contacts
Educators attending the ARRL's Teacher's Institute in Wireless Technology at
Rocklin, CA made two satellite contacts utilizing SaudiSat 1C. At
approximately
1844 PDT, on July 16, Instructor Tommy Gober, N5DUX, assisted with two
successful contacts using the W1AW/6 callsign. One successful contact was
reported to be in Cleveland, Ohio. Tommy used a HT with an Arrow antenna.
For more information on the ARRL program, please see:
http://www.arrl.org/teachers-institute-in-wireless-technology
[ANS thanks Carolyn, KF6JQE for the above information]
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UKube-1 with Amateur Radio Transponder may launch in October
BBC News is reporting that the UK Space Agency?s first CubeSat UKube-1,
being
built by Clyde Space in Glasgow, may launch in late October 2013.
Clyde Space Senior Systems Engineer Steve Greenland will be giving a
presentation on UKube-1 to the AMSAT-UK International Space Colloquium which
takes place July 20-21 at the Holiday Inn, Guildford, GU2 7XZ, UK.
The Colloquium is open to all but for those unable to attend the event
all 18
presentations including UKube-1 will be web streamed live on the BATC
site at
http://batc.tv/ch_live.php?ch=3
UKube-1 will carry a set of AMSAT-UK FUNcube-2 boards which will provide:
? 1200 bps BPSK telemetry beacon on 145.915 MHz
? Linear transponder downlink 145.930-145.950 MHz for SSB/CW communications
? Linear transponder uplink 435.080-435.060 MHz
In addition UKube-1 also carries:
? ISIS 1200 bps BPSK telemetry beacon on 145.840 MHz
? UKSEDS myPocketQub 442 on 437.425-437.525 MHz with 11 mW output using
spread
spectrum
? 1 watt transmitter on 2401.0 MHz from Cape Peninsula University of
Technology (CPUT), Cape Town, for high data rate mission data
downlinking using
up to 1 Mbps QPSK or OQPSK modulation
Gunter?s Space Page lists UKube-1 as manifested on a Soyuz-2-1b Fregat-M
rocket to be launched from Baikonur in Kazakhstan.
If the launch does go ahead as planned in late October then the FUNcube-2
boards will be in orbit before the FUNcube-1 satellite which may launch in
November, 2013 on a Dnepr rocket from Dombarovsky near Yasny.
FUNcube-1 will be using these frequencies:
? 1200 bps BPSK telemetry beacon on 145.935 MHz
? Linear transponder downlink 145.950-145.970 MHz for SSB/CW communications
? Linear transponder uplink 435.150-435.130 MHz
There will be a presentation on FUNcube-1 at the AMSAT-UK International
Space
Colloquium which will be streamed live to the web. The presentation
schedule is
here.
Read the BBC News story at
http://www.bbc.co.uk/news/uk-scotland-glasgow-west-23319103
[ANS thanks BBC & AMSAT-UK for the above information]
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ARISS Contact with Boy Scouts of America, 2013 National Jamboree, K2BSA,
Mount
Hope, WV
An International Space Station school contact has been planned with
participants at Boy Scouts of America, 2013 National Jamboree, K2BSA, Mount
Hope, WV on 20 July.
The event was scheduled to begin at approximately 15:34
UTC. The duration of the contact was approximately 9 minutes and 30
seconds. The
contact was scheduled to be direct between NA1SS and K2BSA.
The Boy Scouts of America held its first national jamboree in 1937.
There have
been 17 jamborees since that first one, typically on a four-year
rotation. The
2013 National Scout Jamboree will be the 18th such jamboree. Amateur
radio has
been a part of the jamboree experience since 1953, when K6BSA was in
operation
from Irvine Ranch in California. That was followed by K3BSA in 1957 at
Valley
Forge, Pennsylvania, and K2BSA in 1964 from Colorado Springs, Colorado.
K2BSA
was established as the amateur radio station for the national office of
the BSA
in 1971. It has been in operation at every jamboree since 1977. Amateur
radio
satellite operations have been an element of the K2BSA program for several
jamborees, and the ARISS direct contact with Space Station Commander Doug
Wheelock during the BSA's centennial national jamboree held at Fort A.P.
Hill,
Virginia, in 2010 was a highlight of the weeklong K2BSA amateur radio
demonstration.
Participants are scheduled to ask as many of the following questions as time
allows:
1. Were you in Scouting as a youth or as an adult leader?
2. In Scouting we practice "Leave No Trace", meaning that we leave
campsites
as we found them. How do you practice "Leave No Trace" in space?
3. I am working on the Robotics Merit Badge and would like to know how
robots
are being used on the space station.
4. Have you ever put up a satellite in space?
5. How do you communicate with your family while you are aboard the space
station?
6. What food do you miss the most from Earth?
7. How would you suggest that Scouting promote interest in science,
technology, engineering, and mathematics?
8. What subjects should I study if I want to become an astronaut?
9. Do stars' size and color look different when you see them in space?
10. How many other planets have you seen from the space station?
11. What is the most difficult task during this mission?
12. Can you see meteor showers from the ISS?
13. Do you ever have a good night's sleep on the space station, and do you
dream the same way as you do on Earth?
14. What would you like to do the most after you come back to the earth?
15. What would you like to do in space in the future?
16. How did you become interested in becoming an astronaut?
17. What do you do during your down time aboard the space station?
18. What is the most valuable thing you have learned since becoming an
astronaut?
19. What does it feel like to walk in space?
20. What do you do if someone needs medical attention while in space?
21. What is one goal you want to achieve as an astronaut?
(ANS thanks David Jordan, AA4KN for this ARISS update)
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ARISS Contact with Colegio Urugua, El Pinar, Uruguay
An International Space Station school contact has been planned with
participants at Colegio Urugua, El Pinar, Uruguay on 20 July. The event was
scheduled to begin at approximately 19:05 UTC. The duration of the
contact was
approximately 9 minutes and 30 seconds. The contact was scheduled to be a
telebridge between NA1SS and LU8YY.
Urugua is a college of primary education with the permission of the
national
administration of education and culture (ANEP). It has a total of 200
pupils
in the schedules of the morning and evening.
Participants are scheduled to ask as many of the following questions as time
allows:
1. What motivation led you to become an astronaut?
2. What are the requirements to be an astronaut?
3. How do astronauts train?
4. How does it feel to go from earth to space?
5. How do they get along with you and have a good relationship?
6. How does oxygen inside the ISS?
7. How and where do their physiological needs?
8. What happen if you throw paint in space?
9. What do you do in your free time on ISS?
10. Do you have something to entertain in free time on ISS?
11. How does it feel to be part of the ISS crew?
12. When you return to earth, do you have a period of adjustment?
13. How is the communication from ISS to the earth?
14. How does see the earth from space?
15. What is the thing that you miss of the Earth?
16. What are the most significant scientific goals achieved with the ISS
program?
17. How does it feel to be in space?
18. From space, we can distinguish some human construction?
19. It was possible to demonstrate the existence of extraterrestrial life?
20. What tasks do during the day on the ISS?
(ANS thanks David Jordan, AA4KN for this ARISS update)
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ARISS Contact with Scuola Italiana di Montevideo (SIM), Montevideo, Uruguay
An International Space Station school contact has been planned with
participants at Scuola Italiana di Montevideo (SIM), Montevideo, Uruguay
on 22
July. The event is scheduled to begin at approximately 11:39 UTC. The
duration
of the contact is approximately 9 minutes and 30 seconds. The contact
will be a
telebridge between NA1SS and VK5ZAI. The contact should be audible over
portions of Australia and adjacent areas. Interested parties are invited to
listen in on the 145.80 MHz downlink. The contact is expected to be
conducted
in Italian.
The SIM is a prestigious educational institution in Uruguay, which has a
history of 125 years of uninterrupted work. Provides educational services
covering all cycles from the Nursery School to High School. Its building
infrastructure is established in an area of over 13 hectares, with large
green
spaces and vast locations closed and open. Our organization has achieved ISO
9001:2008 certification for the "Design and provision of education for all
school years" is the only private educational institution in the country
that
has achieved this award. The Scuola Italiana di Montevideo account for over
fifteen years with astronomical activities cut across the entire
institution,
through the SIM Astronomical Observatory.
Participants will ask as many of the following questions (translated) as
time
allows:
1. How do you feel about being in a spaceship in space?
2. What most impresses you of the ISS?
3. What is the mission to accomplish in space?
4. What do you do during the day? What do you do at the station?
5. What kind of research carried out on ISS?
6. How long stay in space?
7. Have some free time? How is it used?
8. Feel the lack of friends and family? Are you in contact with them? How?
9. How many people can live on the ISS?
10. How are the tests that you had to overcome to go into space?
11. How to solve the problems of hygiene: the bathroom, washing hands,
washing clothes?
12. It is difficult to return to Earth after the last few months without
gravity?
13. How you can see the Earth and the Sun from ISS?
14. When did you realize to become an astronaut?
15. What led you to become an astronaut and how you did it?
16. What does your family think about you?
17. How eat an astronaut?
18. How is it to live without gravity?
19. What's it like to travel in a spaceship?
20. How many times have you gone to space?
(ANS thanks David Jordan, AA4KN for this ARISS update)
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ARISS Contact with ESA Space Camp 2013, Radstadt, Austria
An International Space Station school contact has been planned with
participants at ESA Space Camp 2013, Radstadt, Austria on 24 July. The
event is
scheduled to begin at approximately 11:44 UTC. The duration of the
contact is
approximately 9 minutes and 30 seconds. The contact will be a telebridge
between NA1SS and VK4KHZ. The contact should be audible over Australia and
adjacent areas. Interested parties are invited to listen in on the
145.80 MHz
downlink. The contact is expected to be conducted in English.
The European Space Agency (ESA )space Camp 2013 will be held in Austria at
'JugendhotelBachlehen', 70 km away from Mozart's city of Salzburg, from
Sunday
14 July to Sunday 28 July 2013.
165 children aged 8 to 17 years old will be participating in this annual
space
camp from every ESA establishment in Europe where their parents are working.
The children will learn in the spirit of international cooperation and team
work to be young space explorers.
The theme of this year's camp is Space Exploration and during the 2 week of
the camp the children will be participating in a range of physical and
cultural
activities which will include space education.
The space education programme will encourage the children problem solve
how to
get to Mars.
Designing a landing system for a rover.The exploration challenges they face
will be based on carrying out practical ideas to solve these challenges.
How do
we get the rover to Mars - design and construct your rockets and test
them with
different payloads. Navigation and communication exercises will enable the
payload to land in the right place.
On Landing what kinds of aliens will they find? By looking at the
biodiversity
in extreme environments on Earth they can think about and design a possible
Martian life form - how does this compare to those they found on Earth?
Food is going to be important on a long space flight - what kinds of foods
will be important and what will they taste like. How will they preserve
food?
The ARISS contact will give the children a chance to talk to a crew
member on
the ISS and enhance their space experience.
Participants will ask as many of the following questions as time allows:
1. Do astronauts dream in space?
2. Do you think you dream differently in space?
3. How does the Earth appear when seen from the ISS?
4. Today, one hears each day about the effects of the climatic changes
and the
pollution on our Earth? Do you really see the effects of this
pollution
aboard the ISS?
5. What interest is there to be/ to go to space?
6. Knowing that everything flies on-board the ISS, how do you eat?
7. How fast does the rocket travel in space?
8. How do you prepare for a spacewalk?
9. Could you please describe what impress you most when you look
from the window of the ISS?
10. What is your favorite dish and dessert? Do you miss it in space?
11. Could you see an earthquake, tsunami or a flooding from space? How
would it look like?
12. What colors of the earth can you recognize from space?
13. What are three coolest things you have done in space?
14. Can the International Space Station get lost in space?
15. Because night and daylight are different in space, and because
you are always "floating", I was wondering... is it easy to fall
asleep
in the ISS?
16. Could 3D printers revolutionize space exploration?
17. Although the long training and, I imagine, the long hours
spent in imagining yourself out in space, now that you are there,
can you
tell us whether you have been through some feeling or
experience completely unexpected to you?
18. How many times a day do you see the sunset and the sunrise
from ISS?
19. After the great success of Space Oddity, can you give us a song?
20. How are you dealing with not breathing fresh air? Could you train for
this?
PLEASE CHECK THE FOLLOWING FOR MORE INFORMATION ON ARISS UPDATES:
Sign up for the SAREX maillist at
http://www.amsat.org/mailman/listinfo/sarex
Visit ARISS on Facebook. We can be found at Amateur Radio on the
International Space Station (ARISS).
To receive our Twitter updates, follow @xxxxxxxxxxxx
ARISS is an international educational outreach program partnering the
participating space agencies, NASA, Russian Space Agency, ESA, CNES,
JAXA, and
CSA, with the AMSAT and IARU organizations from participating countries.
ARISS offers an opportunity for students to experience the excitement of
Amateur Radio by talking directly with crewmembers on-board the
International
Space Station. Teachers, parents and communities see, first hand, how
Amateur
Radio and crewmembers on ISS can energize youngsters' interest in science,
technology, and learning. Further information on the ARISS program is
available
on the website http://www.ariss.org/ (graciously hosted by the Radio
Amateurs
of Canada).
(ANS thanks David Jordan, AA4KN for this ARISS update)
------------------------------------------------------------------------------
-
Satelite Shorts From All Over
Scouting STEM Space Jamboree August 2-4 Announced
http://spacejamboree.com/
(ANS thanks JoAnne Maenpaa, K9JKM for the above update)
Mars Day! 2013 at the National Air and Space Museum
Mars Day! is an annual National Air and Space Museum event that
celebrates the Red Planet with educational and fun family activities.
Visitors can see a real meteorite that came from Mars, talk to
scientists active in Mars research and learn about current and future
missions.
Mars Day! 2013 will take place on Friday, July 26, 2013, from 10 a.m.
to 3 p.m. at the National Air and Space Museum in Washington, D.C.
For more information, visit http://airandspace.si.edu/events/marsday/.
Questions about this event should be directed to the Visitor Service
line at 202-633-1000.
[ANS thanks the NASA Education Express for the above information]
------------------------------------------------------------------------------
-
In addition to regular membership, AMSAT offers membership in the
President's Club. Members of the President's Club, as sustaining
donors to AMSAT Project Funds, will be eligible to receive addi-
tional benefits. Application forms are available from the AMSAT
Office.
Primary and secondary school students are eligible for membership
at one-half the standard yearly rate. Post-secondary school students
enrolled in at least half time status shall be eligible for the stu-
dent rate for a maximum of 6 post-secondary years in this status.
Contact Martha at the AMSAT Office for additional student membership
information.
73,
This week's ANS Editor,
Joe Spier, K6WAO
k6wao at amsat dot org
------------------------------
Message: 6
Date: Sun, 21 Jul 2013 07:14:58 -0500
From: Alan <wa4sca@xxxxx.xxx>
To: "AMSAT-BB" <amsat-bb@xxxxx.xxx>
Cc: CC <APBIDDLE@xxxxxx.xxx>
Subject: [amsat-bb] Gospodin Murphy was right!
Message-ID: <53861570B5B94A0F8A9E558329D70C15@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
An interesting article on the recent launch failure of a Proton-M:
http://preview.tinyurl.com/kt5x9hw
The latest in a long line of bizarre, expensive errors in the world launch
business.
73s,
Alan
WA4SCA
------------------------------
Message: 7
Date: Sun, 21 Jul 2013 12:33:33 -0400
From: Robert Bruninga <bruninga@xxxx.xxx>
To: amsat bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] 1/2 Wave "cavity" filter design?
Message-ID:
<CALdCfN+vtyNBh7k0+sF=ygwNv-65R5br34OmPcY7OYZ1FweP+A@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Given the classic 1/2 wave cavity filter, what is the relationship
between inner cavity and center conductor sizes? Of course bigger is
better, but what is "OK".
This is a 1/2 wavelength tube with a center conductor shorted at each
end. The input is loop coupled at one end, an output is loop coupled
at the other end. In the middle is a tiny variable capacitor (usually
just a screw) to tune to resonance.
In the limit, as the cavity size shrinks, you can end up with what
could be considered as just a piece of 1/2wave coax.
Im looking for a really cheap Home-Depot plumbing design that 15
people can reproduce to give them good front end antenna filtering
when operating on mountain tops adjacent to other RF souces. (say
within 100 yards, not permanent installations which of course should
spare no expense at getting the best cavities possible).
We just finished our 4th annual Golden Packet attempt from Maine to
Georgia along the Appalachian trail and many stations were plagued
with front end overload. http://aprs.org/at-golden-packet.html
I'd like to come up with a 3/4" copper pipe design that is robust,
provides sevral dB of out of band rejection. Im trying to understand
the parameters that drive the size of the center conductor. Normally
bigger is better for better bandwidth, but I think smaller will give
me steeper skirts and better rejection? I dont mind say 2 or more dB
insertion loss, because as it is, front end-overload is making us
totally deaf and anything would be bettter.
Lastly, I think such a 1/2wave filter will also pass as a 1.5wave pass
filter on UHF. We need dual band, since we use dual band rigs and
coordinate on UHF voice from the same antennas and coax used for the
VHF packet.
------------------------------
Message: 8
Date: Sun, 21 Jul 2013 12:46:09 -0400 (EDT)
From: g0mrf@xxx.xxx
To: APBIDDLE@xxxxxxx.xxxx amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Gospodin Murphy was right!
Message-ID: <8D05448EF5AA96E-EC0-119C94@xxxxxxxxxxxx.xxxxxx.xxx.xxx>
Content-Type: text/plain; charset="us-ascii"; format=flowed
Heard the same story from a space professional at the AMSAT-UK event
this weekend
Upside down gyros. - Can that happen by accident?
David
-----Original Message-----
From: Alan <wa4sca@xxxxx.xxx>
To: AMSAT-BB <amsat-bb@xxxxx.xxx>
CC: CC <APBIDDLE@xxxxxx.xxx>
Sent: Sun, 21 Jul 2013 13:37
Subject: [amsat-bb] Gospodin Murphy was right!
An interesting article on the recent launch failure of a Proton-M:
http://preview.tinyurl.com/kt5x9hw
The latest in a long line of bizarre, expensive errors in the world
launch
business.
73s,
Alan
WA4SCA
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. 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
------------------------------
Message: 9
Date: Sun, 21 Jul 2013 09:46:18 -0700
From: "Greg D." <ko6th.greg@xxxxx.xxx>
To: APBIDDLE@xxxxxxx.xxxx Alan <wa4sca@xxxxx.xxx>, AMSAT-BB
<amsat-bb@xxxxx.xxx>
Cc: CC <APBIDDLE@xxxxxx.xxx>
Subject: [amsat-bb] Re: Gospodin Murphy was right!
Message-ID: <93669e36-e631-4e2d-8692-8c7936a53521@xxxxx.xxxxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
A member of our radio club is familiar with the rocket, from some past work.
He said that the sensors are not keyed, and the "This side up" label is in
rather small print. Between that and Murphy, I wonder why this wasn't a
more frequent occurrance...
Greg. KO6TH
Alan <wa4sca@xxxxx.xxx> wrote:
>An interesting article on the recent launch failure of a Proton-M:
>
>http://preview.tinyurl.com/kt5x9hw
>
>The latest in a long line of bizarre, expensive errors in the world
>launch business.
>
>73s,
>
>Alan
>WA4SCA
>
>_______________________________________________
>Sent via AMSAT-BB@xxxxx.xxx. 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
- Sent from my new toy; pls excuse tupos.
------------------------------
Message: 10
Date: Sun, 21 Jul 2013 19:42:25 +0100
From: peter.guelzow@xxxxxx.xx
To: g0mrf@xxx.xxxx APBIDDLE@xxxxxxx.xxxx amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Gospodin Murphy was right!
Message-ID: <37378f91-6b2f-45c1-bb29-45e768056e18@xxxxx.xxxxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
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_f
ile.php?fid=17033&width=500&height=500
73s Peter DB2OS
g0mrf@xxx.xxx schrieb:
>Heard the same story from a space professional at the AMSAT-UK event
>this weekend
>
>Upside down gyros. - Can that happen by accident?
>
>David
>
>
>-----Original Message-----
>From: Alan <wa4sca@xxxxx.xxx>
>To: AMSAT-BB <amsat-bb@xxxxx.xxx>
>CC: CC <APBIDDLE@xxxxxx.xxx>
>Sent: Sun, 21 Jul 2013 13:37
>Subject: [amsat-bb] Gospodin Murphy was right!
>
>
>An interesting article on the recent launch failure of a Proton-M:
>
>http://preview.tinyurl.com/kt5x9hw
>
>The latest in a long line of bizarre, expensive errors in the world
>launch
>business.
>
>73s,
>
>Alan
>WA4SCA
>
>_______________________________________________
>Sent via AMSAT-BB@xxxxx.xxx. 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
>
>
>
>_______________________________________________
>Sent via AMSAT-BB@xxxxx.xxx. 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
--
Diese Nachricht wurde von meinem Android-Mobiltelefon mit K-9 Mail gesendet.
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
http://amsat.org/mailman/listinfo/amsat-bb
End of AMSAT-BB Digest, Vol 8, Issue 238
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