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CX2SA > SATDIG 03.06.12 21:04l 986 Lines 37246 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: European Lunar Lander - Call for Declarations (Robert McGwier)
2. ANS-155 AMSAT News Service Weekly Bulletins (JoAnne Maenpaa)
3. Re: European Lunar Lander - Call for Declarations (i8cvs)
4. Re: European Lunar Lander - Call for Declarations of Interest
(Robert G Oler)
5. Icom Power Socket (Fred Kennedy)
6. Re: full duplex w/ 2 HT's (Gordon JC Pearce)
7. pa5rwe / chris (Robert Coppock)
8. EN-0? (Gary "Joe" Mayfield)
----------------------------------------------------------------------
Message: 1
Date: Sat, 2 Jun 2012 19:36:24 -0400
From: Robert McGwier <rwmcgwier@xxxxx.xxx>
To: Daniel Schultz <n8fgv@xxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: European Lunar Lander - Call for Declarations
Message-ID:
<CA+K5gzdzEtMR+UTRFXNP2zkfp5BshhjGEMzQDWNnBV63Hb0UkA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
That can't be quite right. A gain antenna can be put on the moon but its
half power beam width will be limited by libration. If we put a 2.401 GHz
dish on the thing we could easily stay inside the HPBW and likely not need
much power for a decent signal into a small dish on the earth.
The problem is what to do with the things in the dark when it is truly cold
and similarly hot when in the sun.
I suggest no battery and nearly as dumb as a rock linear transponder. It
probably isn't an earth satellite so it doesn't need much in the way of
control.
Interesting to say the least.
Bob
On Jun 1, 2012 8:05 PM, "Daniel Schultz" <n8fgv@xxx.xxx> wrote:
> Keep in mind that any ham radio transponder on the moon will not be an
> "easy
> sat". You will need an EME class station to work it.
>
> If we build a lunar transponder, we can expect to see many, many postings
> on
> Amsat-BB about how Amsat only cares about elite hams and is not interested
> in
> building satellites for the common ham.
>
> I'm not saying it wouldn't be fun to have a transponder on the moon, and
> we in
> the USA might even be able to help you build it if they get ITAR fixed in
> time, but we better put on the flame proof trousers when we announce the
> project to the masses.
>
> Dan Schultz N8FGV
>
>
> _______________________________________________
> 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: 2
Date: Sat, 2 Jun 2012 20:37:42 -0500
From: "JoAnne Maenpaa" <k9jkm@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] ANS-155 AMSAT News Service Weekly Bulletins
Message-ID: <001b01cd4129$78d2adf0$6a7809d0$@xxx>
Content-Type: text/plain; charset="us-ascii"
AMSAT NEWS SERVICE
ANS-155
ANS is a free, weekly, news and information service of AMSAT North
America, The Radio Amateur Satellite Corporation. ANS 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.
Please send any amateur satellite news or reports to:
ans-editor at amsat.org
*******************************************************************
* Nominating petitions for the election of upcoming open seats on *
* the AMSAT-NA Board of Directors must be received at the AMSAT *
* Office by June 15, 2012. The details of the nominating process *
* are posted on the AMSAT front page news at http://www.amsat.org *
*******************************************************************
In this edition:
* STEM Education Identified as Critical for Continued Rides to Space
* AMSAT-NA Board of Directors Nominations
* AMSAT-UK Colloquium 2012 Second Call for Speakers
* Successful ARISS Contact as Northland Preparatory Academy Calls ISS
* Multiple CubeSats Autonomously Docking May Build Large Satellites
* LVB Tracker Boxes in Stock at the AMSAT Office
* 13cm Band Rules Expanded to Allow MedRadio Adjacent to Satellites
* Funding Availability Key to Final Acceptance in QB50 Project
* AMSAT at Ham-Com, 8-9 June, Plano, TX, Special Event K5P
* Satellite Shorts From All Over
SB SAT @ AMSAT $ANS-155.01
ANS-155 AMSAT News Service Weekly Bulletins
AMSAT News Service Bulletin 155.01
>From AMSAT HQ SILVER SPRING, MD.
June 3, 2012
To All RADIO AMATEURS
BID: $ANS-155.01
---------------------------------------------------------------------
STEM Education Identified as Critical for Continued Rides to Space
The AMSAT Forum at the 2012 Dayton Hamvention featured news of the
educational opportunities for AMSAT to contribute to the innovation
in attracting and retaining students in science, technology, engin-
eering and mathematics, or STEM, disciplines. Educators have identi-
fied STEM programs as a priority in strengthening the Nation's future
workforce.
"Education is important to us", said AMSAT Vice-President Educational
Relations Mark Hammond N8MH, "It's a part of our mission and vision."
Mark noted several key points of AMSAT's support for STEM education:
+ AMSAT is a non-profit volunteer organization which designs,
builds and operates experimental satellites and promotes space
education.
+ AMSAT works in partnership with government, industry, educational
institutions and fellow amateur radio societies.
+ AMSAT encourages technical and scientific innovation, and promotes
the training and development of skilled satellite and ground sys-
tem designers and operators.
As evidenced by this year's acceptance of AMSAT's Project Fox cubesat
in the NASA "Educational Launch of NanoSat", the ELaNa program, we
were selected on our merit in support of NASA strategic and educa-
tional goals. Education is quickly becoming critical for our ride
to space.
The recently formed Educational Partnership between AMSAT and ARRL,
including NASA is looking for help. We need to develop an education
program on the ground starting now. We have resources already avail-
able for STEM education in both the K-12 classroom and at the Uni-
versity level while our satellite builders work on the next flight.
For example, the huge collection of telemetry data collected during
the recent ARISSat-1 flight is available on our FTP server. This data
presents an opportunity for the utilization of satellite data in the
classroom (through plotting, graphing, analyzing).
An immediate need is for volunteers to collect and organize existing
STEM related lesson plans and ideas from the web, useful to K-12 edu-
cators and relevant to amateur radio and satellite. Critical steps
such as this will allow ARISSat-1 telemetry data to be used in the
classroom. Similar lesson plans and ideas can be used for educational
purposes in future satellite missions, such as Fox-1 and Fox-2.
To support this effort specific tasks have been identified and now
volunteers are needed to support:
+ Educators: We need lesson plans/ideas related to satellites and
amateur radio. ARISSat-1 telemetry data needs to be used in the
classroom!
+ Educators: sign up for ARRL Teacher's Institute program!
+ Web content person for AMSAT's education web pages.
o Also to maintain a calendar of amateur radio youth events.
+ Archivist/publicist of satellite educational activities (photos,
stories for AMSAT Journal, press, videos).
+ Mentors and ground station operators (with equipment!) for ARISS
contacts.
+ Look for opportunities to engage youth, and document it (photos,
articles, AMSAT Journal, press).
To volunteer contact Mark directly at n8mh at amsat.org. The AMSAT-EDU
mailing list is the place to exchange education project ideas and to
learn how to help with our educational outreach. Information on how
to join the AMSAT-EDU list can be found on the AMSAT web at:
http://www.amsat.org/mailman/listinfo
AMSAT's vision is to deploy satellite systems with the goal of pro-
viding wide area and continuous coverage. AMSAT will continue active
participation in human space missions and support a stream of LEO
satellites developed in cooperation with the educational community
and other amateur satellite groups. This is a path to getting Fox-1
in orbit, and our future Fox-2, ARISSat-2, -3, -?
Again, the key contact is AMSAT Vice-President Educational Relations
Mark Hammond N8MH - n8mh at amsat.org.
[ANS thanks Mark Hammond, N8MH for the above information]
---------------------------------------------------------------------
AMSAT-NA Board of Directors Nominations
It is time to submit nominations for the upcoming open seats on the
AMSAT-NA Board of Directors. A valid nomination requires either one
current Member Society, or five current individual members in good
standing, to nominate an AMSAT-NA member for the position.
Three directors and two alternate directors have terms expiring this
year. The director seats open for election are held by Tom Clark,
K3IO; Lou McFadin, W5DID; and Gould Smith, WA4SXM. The alternate dir-
ector seats open for election are held by Mark Hammond, N8MH and
Patrick Stoddard, WD9EWK.
The three nominees receiving the highest number of votes will be
seated as regular board members with two year terms. The two nom-
inees receiving the next highest number of votes will be seated as
alternate directors for one year.
Written nominations, consisting of names, calls and individual signa-
tures, should be mailed to: AMSAT-NA, 850 Sligo Ave #600, Silver
Spring, MD, 20910. They must be received no later than June 15th. No
other action is required.
Nominations may also be made by electronic means including e-mail,
FAX, or electronic image of a petition. Electronic petitions should
be sent to MARTHA@xxxxx.xxx or faxed to 301-608-3410, and also must
be received by June 15th. If using any electronic submission, there
is a second, verifying step:
ELECTRONIC SUBMISSIONS WITHOUT THIS SECOND, WRITTEN VERIFICATION
ARE NOT VALID UNDER THE EXISTING AMSAT-NA BYLAWS. A verifying
traditional written petition MUST be received at the AMSAT-NA
office at the above address within 7 days following the close
of nominations.
[ANS Thanks AMSAT Secretary Alan Biddle, WA4SCA for the above
information]
---------------------------------------------------------------------
AMSAT-UK Colloquium 2012 Second Call for Speakers
This is the second call for speakers for the AMSAT-UK International
Space Colloquium 2012 which, due to the Olympic & Paralympic Games,
will be held the weekend of September 15-16, 2012 at the Holiday
Inn, Guildford, GU2 7XZ, United Kingdom.
AMSAT-UK has posted details of the 2012 Colloquium at:
http://www.uk.amsat.org/colloquium/twelve
AMSAT-UK invites speakers, to cover topics about micro-satellites,
CubeSats, nano-sats, space and associated activities, for this event.
They are also invited to submit papers for subsequent publishing on
the AMSAT-UK web site. We normally prefer authors to present talks
themselves rather than having someone else give them in the authors'
absence. We also welcome "unpresented" papers for the web site.
We appreciate that it is not always possible to give a firm indica-
tion of attendance at this stage but expressions of interest would
be appreciated.
Submissions should be sent *ONLY* to G4DPZ, via the following routes:
+ e-mail: david dot johnson at blackpepper dot co dot uk
+ Postal address at http://www.qrz.com/db/G4DPZ
AMSAT-UK also invite anyone with requests for Program Topics to sub-
mit them as soon as possible to G4DPZ. Invitations for any papers on
specific subjects will be included in the future call. Likewise if
anyone knows of a good speaker, please send contact and other infor-
mation to G4DPZ.
AMSAT-UK http://www.uk.amsat.org/
[ANS thanks Dave Johnson, G4DPZ and AMSAT-UK for the above information]
---------------------------------------------------------------------
Successful ARISS Contact as Northland Preparatory Academy Calls ISS
On Thursday, May 24, students from Northland Preparatory Academy in
Flagstaff, Arizona participated in an Amateur Radio on the Interna-
tional Space Station (ARISS) contact with Joe Acaba, KE5DAR on the
ISS.
Approximately 550 students, staff and administrators, as well as Dr.
Jeffrey Hall, director of the Lowell Observatory, and the mayor were
in attendance. The contact complemented a Science, Technology, Engin-
eering and Math (STEM) curriculum. Video of the event, including Dr.
Hall's presentation, has been posted on-line.
See: http://spacescienceteaching.blogspot.com/
The Arizona Daily Sun ran an article on the event which may be found
here: http://tinyurl.com/ISS-AZDailySun (azdailysun.com)
[ANS thanks Carol, KB3LKI, and the ARISS Status Report for the Week
of May 29, 2012 for the above information]
---------------------------------------------------------------------
Multiple CubeSats Autonomously Docking May Build Large Satellites
This week AMSAT-UK, SpaceRef.com, and SSTL have announced plans to
develop the 'STRaND-2' mission at the University of Surrey and Sur-
ey Satellite Technology Limited (SSTL). This mission will test a
novel in-orbit docking system based upon XBOX Kinect technology
that could change the way space assets are built, maintained and
decommissioned.
STRaND-2 (Surrey Training, Research and Nanosatellite Demonstrator)
programme, following on from the smartphone-powered STRaND-1 satel-
lite that is near completion. Similar in design to STRaND-1, the
identical twin STRaND-2 satellites will each be a 3 unit Cubesat.
Components from the XBOX Kinect games controller to scan the local
area and provide the satellites with spatial awareness on all three
axes.
SSTL says on their web site, "The STRaND-2 twins will be separated
after launch. After the initial phase of system checks, the two sat-
ellites will be commanded to perform the docking procedure and, when
in close proximity, the Kinect-based docking system will provide the
satellites with 3D spatial awareness to align and dock. Other appli-
cations for STRaND-2 include the safe removal of space debris and
spacecraft maintenance, with a low cost "snap-on" nanosatellite pro-
viding backup power, propulsion or additional on-board computing
capability."
SSTL Project Lead Shaun Kenyon says, "We were really impressed by
what MIT had done flying an autonomous model helicopter that used
Kinect and asked ourselves: Why has no-one used this in space? Once
you can launch low cost nanosatellites that dock together, the pos-
sibilities are endless, like space building blocks."
Dr. Chris Bridges, Surrey Space Centre Project Lead says, "It may
seem far-fetched, but our low cost nanosatellites could dock to
build large and sophisticated modular structures such as space
telescopes. Unlike today's big space missions, these could be re-
configured as mission objectives change, and upgraded in-orbit with
the latest available technologies."
Referenced web sites:
http://www.uk.amsat.org/7851
http://www.spaceref.com/news/viewpr.html?pid=37215
http://tinyurl.com/Strand2-News (www.sstl.co.uk)
[ANS thanks AMSAT-UK, SpaceRef.com, and SSTL for the above information]
---------------------------------------------------------------------
LVB Tracker Boxes in Stock at the AMSAT Office
Martha says she now has LVB Tracker boxes in stock at the AMSAT
Office. The cost is $200 plus $20 shipping.
The AMSAT Store Website is currently down due to technical issues so
you can place your order via these routes:
+ Call Martha at the AMSAT Office (301-589-6062) 10:00 AM-6:00 PM EDT
+ Fax - 301-608-3410
+ Mail - AMSAT, 850 Sligo Ave #600, Silver Spring MD 20910
The LVB Tracker is a rotator interface designed to to be used as an
interface between tracking software and the Yaesu 4500/5500 series
of Az/El rotators.
Here's why you want one:
+ Several physical interface options including RS-232, USB and
TCP/IP over 10/100 Ethernet (tested by not implemented)
+ Uses standard EasyComm and Yaesu GS-232 protocols
+ Cross-platform compatibility - Windows, Linux, BSD, Mac
+ Compatible with existing real-time prediction programs such as
SatPC32 and Nova
+ Open source
+ Integrated firmware programmer for easy installation and upgrade
Watch a demo of the LVB Track Interface with Yaesu G-5500 rotator at:
http://www.youtube.com/watch?v=7ePw-ReMRwA (does not use the AMSAT
enclosure)
[ANS thanks Martha at the AMSAT Ofice for the above information]
---------------------------------------------------------------------
13cm Band Rules Expanded to Allow MedRadio Adjacent to Satellites
The ARRL is reporting in a First Report and Order and a Further
Notice of Proposed Rulemaking (ET 08-59) released on May 24, the
FCC decided to expand the Part 95 Personal Radio Service rules to
allow medical devices to operate on a secondary basis in the 2360-
2400 MHz band. International amateur satellite operations are allo-
cated between 2400-2450 MHz, adjacent to the new devices.
The new allocation is Medical Body Area Networks (MBAN) which pro-
vide a way for health care facilities to monitor their patients via
wireless networks. Because use of these frequencies will be on a
secondary basis, MBAN stations will not be allowed to cause inter-
ference to, and must accept interference from, primary services,
including radio amateurs who operate on a terrestrial primary basis
in the 2390-2395 MHz and 2395-2400 MHz bands.
The ARRL has posted their full analysis and report at:
http://tinyurl.com/13cm-Medical-Allocation (arrl.org)
[ANS thanks the ARRL for the above information]
---------------------------------------------------------------------
Funding Availability Key to Final Acceptance in QB50 Project
The QB50 Project, funded by the European Commission, plans to orbit
50 CubeSats separated by a few hundred kilometers and carrying iden-
tical sensors to study Earth's lower layers of the thermosphere/ion-
osphere and study effects of satellite re-entry. All 50 CubeSats will
be launched out of Murmansk, Russia, into a circular orbit with 79
degree inclination at 320 km altitude in the first half of 2015.
Full details are published at: https://www.qb50.eu.
The project is run by an international consortium under the leader-
ship of the von Karman Institute (VKI) near Brussels. The Call for
Proposals for CubeSats carrying the standard sensor package which
may also include additional experiments closed on April 30, 2012.
VKI reports the response to this Call resulted in proposals for 70
CubeSats from 38 countries in the following categories:
+ 53 standard 2U CubeSats for atmospheric science.
+ 7 proposals for In-Orbit-Demonstration (IOD) 3U CubeSats for test-
ing new technologies or minitaurised science sensors which also
include the standard science sensors.
+ 5 proposals for IOD 3U CubeSats which do not include the standard
science sensors.
+ 1 proposal for IOD 2U CubeSats which also include the standard
science sensors.
+ 4 proposals for IOD 2U CubeSats which do not include the standard
science sensors.
+ 2 proposals for interdisciplinary science.
VKI, with the help of external reviewers, is now in the process of
evaluating the 70 proposals, aimed towards a selection of 50 Cube-
Sats to be flown on QB50.
VKI wrote in the 31 May 2012 issue of the QB50 Newsletter, "The
availability of funding for developing a CubeSat will be a critical
issue in the selection process. At this stage, it is not known which
proposals will actually be able to obtain the required funding. The
final selection of 50 CubeSats can only be made once the availability
of funding is established. CubeSat teams who submitted a proposal
should now contact their national funding agencies and/or industrial
sponsors to obtain the funding. The process of securing this funding
should be completed by 1 October 2012 with the signing of a 'Contrac-
tual Agreement' between the university and VKI."
In the coming months, VKI will support the CubeSat teams in their
efforts to obtain the funding, e.g. by sending a 'Letter of Support'.
It is not expected that all 70 CubeSat teams will be able to sign
the Contractual Agreement by 1 October, therefore, the de facto down-
selection from 70 to 50 CubeSats will be made based on securing the
funding by each team.
In some cases, funding agencies will only be able to provide a part
of the funding. Teams who only received approval for part of the fund-
ing should consider the possibility of collaboration with another team
that also received only a part of the requested funding.
[ANS thanks The QB50 Project and von Karman Institute for the above
information]
---------------------------------------------------------------------
AMSAT at Ham-Com, 8-9 June, Plano, TX, Special Event K5P
AMSAT will have an AMSAT Booth, Satellite Demonstrations, and two
Satellite Talks at Ham-Com in Plano, TX, on 8-9 June 2012. The talks
will be given by Douglas Quagliana, KA2UPW/5, and Keith Pugh, W5IU.
This year there will be a Special Event activity (sponsored by the
Plano Amateur Radio Klub) associated with Ham-Com and the call sign
will be K5P. AMSAT's Satellite Demonstrations will be conducted us-
ing K5P as part of the Special Event. Additional details about Ham-
Com are available at: http://www.hamcom.org/
If you attend Ham-Com, drop by and see us. In addition, if you can
spare an hour or two, we could use the help in the AMSAT Booth and
doing the Demos.
We plan to work as many of the following Satellite Passes as possible:
Ham-Com 2012 Demos
Grid EM13pb
Min El = 10 deg
Time Zone UTC
WinAos QTH: -96.7/33.1 T#: 12577 Sat.: 7 [Standard]
----------------------------------------------------------
Day Object AOS (U) LOS Period maxEl AZ
----------------------------------------------------------
08.06.2012 VO-52 13:53 14:00 07 39 031 - 172
08.06.2012 VO-52 15:30 15:34 04 14 319 - 259
08.06.2012 HO-68 15:41 15:54 13 48 029 - 176
08.06.2012 HO-68 17:29 17:40 11 28 350 - 238
08.06.2012 FO-29 18:43 18:56 13 64 020 - 184
08.06.2012 AO-27 18:44 18:51 07 22 118 - 018
08.06.2012 SO-50 20:08 20:15 07 19 008 - 100
08.06.2012 AO-27 20:23 20:32 09 35 196 - 331
08.06.2012 FO-29 20:30 20:38 08 18 332 - 248
08.06.2012 SO-50 21:48 21:56 08 43 317 - 174
WinAos QTH: -96.7/33.1 T#: 12578 Sat.: 7 [Standard]
----------------------------------------------------------
Day Object AOS (U) LOS Period maxEl AZ
----------------------------------------------------------
09.06.2012 VO-52 14:10 14:17 07 66 019 - 184
09.06.2012 AO-07 14:11 14:19 08 16 336 - 268
09.06.2012 HO-68 15:24 15:36 12 35 034 - 164
09.06.2012 HO-68 17:12 17:24 12 36 355 - 227
09.06.2012 FO-29 17:50 17:59 09 23 048 - 148
09.06.2012 AO-27 18:18 18:22 04 12 084 - 036
09.06.2012 FO-29 19:34 19:46 12 51 359 - 213
09.06.2012 AO-27 19:54 20:04 10 66 174 - 343
09.06.2012 SO-50 20:36 20:44 08 47 345 - 134
09.06.2012 AO-07 21:21 21:30 09 17 091 - 015
Come see us or talk to the AMSAT Team!
[ANS thanks Keith Pugh, W5IU for the above information]
---------------------------------------------------------------------
Satellite Shorts From All Over
+ Venus will pass in front of the sun on 6 June 2012. Bob Bruninga,
WB4APR will be in Japan to observe the event. He has created a web
page, "The 2012 Transit of Venus using HAM Radio" including a list
of selected calling frequencies, see:
http://aprs.org/VenusTransit2012.html
+ The 2012 AMSAT Annual Meeting and Symposium will be held at the
Holiday Inn, Orlando (Florida) Airport on October 26-28, 2012.
The First Call for Papers has been issued. The Symposium Team
requests a tentative title of your presentation as soon as poss-
ible, with final copy to be submitted by October 1 for inclusion
in the printed proceedings. Abstracts and papers should be sent to
Dan Schultz, N8FGV, at n8fgv@xxxxx.xxx. Watch for the latest 2012
Symposium information to be posted on the AMSAT web at:
http://www.amsat.org/amsat-new/symposium/2012/index.php
+ The UK Space Agency has released a YouTube video celebrating the
UK's 50 years in space: http://tinyurl.com/UK-50-In-Space
(Southgate)
+ Eric Knaps, ON4HF built an arrow antenna for working the FM sat-
ellites. Photos posted at:
https://picasaweb.google.com/ON4HF.Eric/PortableSatAntenna
+ ESA astronaut Andre Kuipers published a photo gallery during the
arrival and docking at the ISS of the SpaceX Dragon resupply ship.
See: http://tinyurl.com/Dragon-Photo-Gallery (UniverseToday.com)
+ A 50 minute interview with Neil Armstrong made this year is now
available. The video is split into 4 parts which can be seen at:
http://thebottomline.cpaaustralia.com.au/ (Trevor, M5AKA)
+ The May 20 annular eclipse was photographed by NASA's Lunar Recon-
naissance Orbiter as it turned its camera to look back home. Images
of the Earth with the Moon's fuzzy shadow are posted on-line at:
http://tinyurl.com/LROC-Eclipse (UniverseToday.com) For eclipse
photos from Earth check out:
http://www.universetoday.com/95469/annular-eclipse-redux/
+ There are two new Hamvention 2012 music videos on YouTube produced
by Joe Eisenberg, K0NEB. One is called Hamvention 2012 "Band On The
Run" and the other is titled Hamvention 2012 "Gimme Dat Ding." To
find them just put the word joehusker into the search YouTube search
line.
[ANS thanks everyone 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. And with that please keep in mind the tidal forces of
the Moon (and the Sun) don't only act on the oceans, they act on the
land as well. If you stand on the equator, the land beneath you will
go up and down by as much as 21 inches (55 centimeters) over the
course of a day.
73,
This week's ANS Editor,
JoAnne Maenpaa, K9JKM
K9JKM at amsat dot org
------------------------------
Message: 3
Date: Sun, 3 Jun 2012 03:54:20 +0200
From: "i8cvs" <domenico.i8cvs@xxx.xx>
To: "Peter Guelzow" <peter.guelzow@xxxxxx.xx>, "Amsat - BBs"
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: European Lunar Lander - Call for Declarations
Message-ID: <000001cd412c$0dbeffc0$0401a8c0@xxxxxx>
Content-Type: text/plain; charset="Windows-1252"
Hi Peter, DB2OS
I was reading the document in particular point 2.2.2
Communication and 2.2.3 but in my opinion the Radio
Hams are off side because everyting has been already
designed and in my opinion there is no room available
on the Lander for a Moon-Earth experimental communication
transponder in our L band and S band because our antennas
are too big.
Since the main 7.2 and 8.5 GHz X band High Gain Antennas
of the Lander are oriented toward the Earth in a fixed position
to compensate the pointing for libration probably only a 5 watt
pep and a circularly polarized horn on our 10.5 GHz should be
possible.
73" de
i8CVS Domenico
----- Original Message -----
From: "Peter Guelzow" <peter.guelzow@xxxxxx.xx>
To: <amsat-bb@xxxxx.xxx>
Sent: Sunday, June 03, 2012 12:57 AM
Subject: [amsat-bb] Re: European Lunar Lander - Call for Declarations
Hi together,
Please also have a look at this document:
http://wsn.spaceflight.esa.int/docs/lunarlander/LunarLander_EIDA_CDI_230512.
pdf
in particular see point 2.2.2 Communication and 2.2.3:
"Visibility of the Earth from the landing site imposes the following
constraint:
? communications shall 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 this discussion from James Miller, G3RUH:
>
> http://www.amsat.org/amsat/articles/g3ruh/110.html
>
>
> 73s Peter, DB2OS
------------------------------
Message: 4
Date: Sat, 2 Jun 2012 17:36:02 -0500
From: Robert G Oler <orbitjet@xxxxxxx.xxx>
To: "pughkeithd@xx.xxxx <pughkeithd@xx.xxx>
Cc: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: European Lunar Lander - Call for Declarations
of Interest
Message-ID: <BLU0-SMTP409721D60AB1B5C9851135ED6090@xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Yikes. Comes from typing word fill and not paying all that much
attention....planting my wife's trees
DEPLOYABLE. Not deplorable. The editor regrets the error. Robert WB5MZO
Sent from my iPad
On Jun 2, 2012, at 14:26, pughkeithd@xx.xxx wrote:
> Do you really mean a "deplorable" antenna?
>
> 73 - Keith, W5IU
> -----Original Message-----
> From: Robert G Oler <orbitjet@xxxxxxx.xxx>
> To: i8cvs <domenico.i8cvs@xxx.xx>
> Cc: Amsat - BBs <amsat-bb@xxxxx.xxx>
> Sent: Sat, Jun 2, 2012 1:44 pm
> Subject: [amsat-bb] Re: European Lunar Lander - Call for Declarations of
Interest
>
> It is to bad that the concentration couldn't be on something clever that
would
> earn us some mass for a transponder. Like say some sort antenna that is
> deplorable and would massively increase the data rates.. Like an inflatable.
> Robert WB5MZO
>
> Sent from my iPad
>
> On May 31, 2012, at 12:46, "i8cvs" <domenico.i8cvs@xxx.xx> wrote:
>
> > Hi Stefan, VE4NSA
> >
> > I believe that ESA is interested to have a payload placed on the moon
only to
> make important and particular experiments that are impossible to manage to
put
> something into earth orbit.
> >
> > The capability of an Amateur Radio transponder to communicate between us
or
> for educational outreach and training opportunities associated with it can
be
> experimented even placing a transponder on earth orbit or on top of a hill.
> >
> > As you realize for the moment ESA seems to be not to much interested on
> satellite amateur radio P3E and scientific probe P5A to Mars,figure out to
place
> an amateur radio transponder on the Moon.
> >
> > 73" de
> >
> > i8CVS Domenico
> > ----- Original Message -----
> > From: Stefan Wagener
> > To: i8cvs
> > Cc: Amsat - BBs
> > Sent: Thursday, May 31, 2012 4:48 PM
> > Subject: Re: [amsat-bb] European Lunar Lander - Call for Declarations of
> Interest
> >
> >
> > Yes Domenico,
> >
> >
> > You are correct. However, that particular ESA proposal is not about
putting
> it into orbit. It is an opportunity to have a payload placed on the moon.
Once
> ESA has a proposal to put something into orbit, by all means.
> >
> >
> > Hope this helps,
> >
> >
> > Stefan
> >
> >
> > On Thu, May 31, 2012 at 9:31 AM, i8cvs <domenico.i8cvs@xxx.xx> wrote:
> >
> > Hi Stefan, VE4NSA
> >
> > It does not make sense to put a transponder on the Moon just for the
simple
> > reason that it's much more, simple and cheap to put it into earth
orbit.
> >
> > 73" de
> >
> > i8CVS Domenico
> >
> >
> > ----- Original Message -----
> > From: "Stefan Wagener" <wageners@xxxxx.xxx>
> > To: "Amsat - BBs" <amsat-bb@xxxxx.xxx>
> >
> > Sent: Thursday, May 31, 2012 4:06 AM
> > Subject: [amsat-bb] European Lunar Lander - Call for Declarations of
> > Interest
> >
> >
> >
> >> ESA has posted a very unique opportunity:
> >>
> >> http://www.esa.int/SPECIALS/HSF_Research/SEMGUMZWD2H_2.html
> >>
> >> Wouldn't it be great if the key AMSAT organizations put a proposal
> > together
> >> to put a ham radio transponder on the moon. It can have all the cool
> >> educational outreach and training opportunities associated with it. Let's
> >> encourage the AMSAT leadership teams to move quickly. We can do it, don't
> >> you think?
> >>
> >> Stefan VE4NSA
> >
> >> _______________________________________________
> >> 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
> >
>
> _______________________________________________
> 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: 5
Date: Sun, 03 Jun 2012 17:58:22 +1200
From: "Fred Kennedy" <fredk@xxxxx.xxx.xx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Icom Power Socket
Message-ID: <4FCAFCFE.8977.145132D@xxxxx.xxxxx.xxx.xx>
Content-Type: text/plain; charset=US-ASCII
Hi Guys,
Can anyone point me to a supplier for the (Molex?) plug and
socket that is used to connect the
DC Power into the back of the IC-821. I want to produce a (decent!) break
out box to switch the
output of an IC- 821's DC PSU ( (Icom PS-85) to alternative switchable
circuits - both Icom and
others..
(Suspect Icoms price can be bettered and its probably a 'standard'!!)
Thanks
Fred Kennedy
ZL1BYP
------------------------------
Message: 6
Date: Sun, 03 Jun 2012 10:46:26 +0100
From: Gordon JC Pearce <gordonjcp@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: full duplex w/ 2 HT's
Message-ID: <4FCB3272.5060706@xxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 02/06/12 17:33, Robert Coppock wrote:
>
>
>
>
> hola, i am trying to determine the best way to work full duplex on the
birds with 2 HT's or radios. i cannot find any info so far on the web. my
concern is to keep the transmit power out of the receive radio, i guess
basically the difference between a diplexer and duplexer. since i am
efficient (lazy) i thought i would just look for suggestions here while i am
checking google also. what do i need, di/du/ plexer, and what is the
correct wiring scheme ? i will be using the arrow antenna without the built
in duplexer, from the 2 feeds (vhf/uhf) and 2 HT's for now. my picture of
it so far, is to wire the vhf radio direct to the vhf feed port on the
arrow, and have the uhf port on the arrow come into a duplexer, with the
duplexer uhf port going to the uhf radio, and the duplexer vhf port
terminated into a 50 ohm dummy load. also, any suggestions of specific
duplexers would be appreciated. i think i started on this project a few
years ago, but never got around to get!
ti!
> ng it all together. grazie mille, Robert k f 0 g cn81 in the
woodwork, literally,
shasta/klamath national forests.
Duplexers are for the same band, diplexers are for splitting bands. So,
you want a diplexer for this. HB9ABX did a nice design but apparently
doesn't want to give it out any more. I'm sure a quick Google will
reveal the sickening truth that you cannot hide from the Internet.
--
Gordonjcp MM0YEQ
------------------------------
Message: 7
Date: Sun, 3 Jun 2012 11:04:31 -0700
From: Robert Coppock <robertinorbit@xxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] pa5rwe / chris
Message-ID: <SNT131-W55EFAAD3EB7678D35D1860A00E0@xxx.xxx>
Content-Type: text/plain; charset="iso-8859-1"
"hams never die, they just go to ground" rest in peace, Chris my
neighbors and i listened to this at full volume via my stereo,
celebrate life ! =(it's and upside down I)
http://www.youtube.com/watch?v=g4ouPGGLI6Q
------------------------------
Message: 8
Date: Sun, 3 Jun 2012 13:17:24 -0500
From: "Gary \"Joe\" Mayfield" <gary_mayfield@xxxxxxx.xxx>
To: "'AMSAT-BB'" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] EN-0?
Message-ID: <BAY169-DS27050D80BB13A220C4FC408A0E0@xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
Someone was looking to work EN-02 or 03 or one of the low EN numbers..
I'll be headed south Wednesday and should be able to activate something on
SO-50 or AO-27. If you need one of those grids please let me know.
73,
Joe kk0sd
------------------------------
_______________________________________________
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 7, Issue 178
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