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CX2SA > SATDIG 18.10.14 14:10l 608 Lines 22400 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. ANS-290 AMSAT News Service Special Bulletin (E.Mike McCardel)
2. Fwd: Beaconsats (Shamai Opfer)
3. SO-50 (Andrew Glasbrenner)
4. G-5500 Rotor issue (Greg)
5. Re: FUNcube/AO-73 Mode change (Jim Heck)
6. Re: [Bulk] G-5500 Rotor issue (J Bennett)
7. Re: Cubesat Vibration Test (Goody K3NG)
8. Re: G-5500 Rotor issue (Gary Mayfield)
9. J'aimerais vous inviter ? rejoindre mon r?seau professionnel
sur LinkedIn. (Jean-Claude Aveni)
----------------------------------------------------------------------
Message: 1
Date: Fri, 17 Oct 2014 11:11:38 -0400
From: "E.Mike McCardel" <mccardelm@xxxxx.xxx>
To: Amsat - BBs <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] ANS-290 AMSAT News Service Special Bulletin
Message-ID:
<CAM5+sos=ywN1Q4Ti89BO9_TUTYd59yOXTvT9NFqERN0BqwKung@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
AMSAT NEWS SERVICE
ANS-290
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:
* Design the Next AMSAT Satellite!
SB SAT @ AMSAT $ANS-290.01
ANS-290 AMSAT News Service Special Bulletin
AMSAT News Service Bulletin 290.01
>From AMSAT HQ KENSINGTON, MD.
DATE October 17, 2014
To All RADIO AMATEURS
BID: $ANS-290.01
Design the Next AMSAT Satellite!
At the 2014 AMSAT Space Symposium AMSAT Vice President - Engineering
Jerry Buxton announced the plan for the next generation of AMSAT
satellites. "The door is open for everyone, to submit their ideas.
AMSAT Engineering has a long term strategy and this is the first step."
The Engineering long term strategy includes the following goals
* Advancement of amateur radio satellite technical and
communications skills
* Enhance international goodwill
* Grow and sustain a skilled pool of amateur radio satellite engineers
* Establish and maintain partnerships with educational institutions
* Develop a means to use hardware common to all opportunities
With respect to the last goal Jerry said "Within the bounds of the
type of satellite it takes to achieve any of the various orbit
opportunities, let's consider in those plans the possibility of
developing a platform that can suit any and all orbits. Perhaps a
modular CubeSat, using a common bus as we did in Fox-1, which gives
great flexibility in building and flying different sizes and
configurations of CubeSats with simple common-design hardware changes."
Submissions should be thorough and contain the following
information. The purpose of the proposal is not just in suggesting
an idea; being an all-volunteer team AMSAT needs your help in
carrying out the idea.
* Design
* Implementation - CubeSat platform
* Estimated timeline
* Cost - volunteer resources, commercial (COTS) units
* Launch - how does it get to orbit
* Strategy - how it fits into AMSAT's Engineering long term strategy
As mentioned above the idea should be based on the CubeSat platform.
This is the standard through which we will look for launches in the
foreseeable future.
In considering your proposal, Jerry encourages you to contact him
for more details on the criteria. In particular, if you plan to
include a university as a partner to provide experiments or other
support and you are not representing that university, please contact
Jerry for assistance in working with our existing partners or
establishing a new partnership.
"Being amateur radio operators, it is easy for us to fall into a
particular trap because of our history of communicating with other
amateurs throughout the world" says Jerry. "Specifically, most
people who are not already involved in the world of satellite
technology are unaware of or simply overlook the provisions of the
current ITAR and soon to be EAR export rules particularly with regard
to deemed exports which requires governmental permission to discuss
satellite projects with foreign nationals."
While all amateurs are invited to submit ideas, U.S. amateurs must
take particular care of they choose to become involved in a
collaboration which includes individuals from other countries. It is
permissible to receive ideas and proposals from outside the U.S., but
it is not permitted for U.S. Persons to export or share design ideas
with other countries unless they have taken the proper steps to
insure compliance with ITAR and deemed export rules.
Additionally, those wishing to work on proposals should use care in
presenting themselves in their contacts. While the goal is for AMSAT
to build and launch the satellite, it is not an AMSAT project until
it is accepted by the AMSAT Board of Directors. It is acceptable to
represent yourself as members of a project team that plans to submit
a proposal to AMSAT for a future satellite project, as the AMSAT name
is well known.
"It is not our intention that ideas be submitted to AMSAT-NA which
would be more appropriately handled by an AMSAT organization in a
country where AMSAT is established. AMSAT-NA is seeking ideas from
amateurs in North America and will certainly consider ideas from
amateurs in countries which do not have an established AMSAT
organization or relationships with an existing AMSAT organization."
The deadline for submissions is May 30, 2015. After the submission
date the ideas will be screened for completeness and then reviewed by
a board consisting of the AMSAT Engineering Team, AMSAT Senior
Officer and Board of Directors representatives, and aerospace
industry members. The review board may modify or consolidate ideas
and will consider which meet the criteria to become a project based
on feasibility, cost, and the ability to bring value to the amateur
satellite community. The review process is expected to be completed
in September 2015.
For those ideas selected to become a project which satisfy the
requirements for an ELaNa launch, the idea authors will be asked to
work with the AMSAT Engineering Team on an ELaNa proposal.
The Engineering Team will then work on the details of execution for
the selected project(s) and present a proposal to the AMSAT Board of
Directors in October 2015 for final approval to begin work. Once
approved, any ELaNa proposals will be submitted in November 2015 and
the project(s) will move forward.
Now is the time for YOU to begin working on the next AMSAT satellite!
[ANS thanks AMSAT-NA 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 Special ANS Editor,
EMike McCardel, KC8YLD
kc8yld at amsat dot org
------------------------------
Message: 2
Date: Fri, 17 Oct 2014 18:59:46 +0300
From: Shamai Opfer <shamai.opfer@xxxxx.xxx>
To: AMSAT-BB@xxxxx.xxx
Cc: n5hyp@xxxx.xxx
Subject: [amsat-bb] Fwd: Beaconsats
Message-ID:
<CAP-2a1pxJhF4ckSmPF7PuR8Lf_oAsy=XH=qvrWhhu0-YAW-DRA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Hi,
DUCHIFAT-1 has a short CW beacon every 1 minute on 145.980 (saying "hi de
duchifat"), and a BPSK 1200bd telemetry every 20 sec.
I found out that passes above 50-60 deg elevation can be heard with just a
handy and its original rubber ducky antenna, such as the Kenwood TH-F6.
good luck!
shamai 4z1ws
---------- Forwarded message ----------
From: Alan <wa4sca@xxxxx.xxx>
Date: Fri, Oct 17, 2014 at 1:55 PM
Subject: Re: [amsat-bb] Beaconsats
To: Tom Schuessler <tjschuessler@xxxxxxx.xxx>, AmsatBB <amsat-bb@xxxxx.xxx>
Cc: Starcom-bb@xxxxxxxx.xxx
Tom,
LU-19 has only a boring carrier, but it is strong and reliable.
73s,
Alan
WA4SCA
<-----Original Message-----
<From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Tom Schuessler
<Sent: Wednesday, October 15, 2014 11:06 PM
<To: 'AmsatBB'
<Cc: Starcom-bb@xxxxxxxx.xxx
<Subject: [amsat-bb] Beaconsats
<
<Aside from HO-68 which has a rather strong beacon CW signal, and UKube-1,
<EO-79, does anyone have any suggestions for satellites with relatively
<strong beacon signals of any kind that would make good "Track the Sat"
demos
<for the JOTA event I am running this weekend. Keith Pugh, W5IU will be
<helping me with AMSAT demos but I have wondered for some time now which
<birds folks felt had the strongest, most easily tracked beacon signals.
<
<Thanks Much
<
<Tom Schuessler, N5HYP.
<n5hyp@xxxx.xxx
<
<
<_______________________________________________
<Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
<to all interested persons worldwide without requiring membership. Opinions
expressed
<are solely those of the author, and do not reflect the official views of
AMSAT-NA.
<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. AMSAT-NA makes this open forum available
to all interested persons worldwide without requiring membership. Opinions
expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
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: Fri, 17 Oct 2014 14:32:08 -0400
From: "Andrew Glasbrenner" <glasbrenner@xxxxxxxxxx.xxx>
To: "'AMSAT BB'" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] SO-50
Message-ID: <00d101cfea38$a8cd9ff0$fa68dfd0$@xxx>
Content-Type: text/plain; charset="us-ascii"
There were a total of three stations on SO-50 right up the east coast just
now. Myself, N8IUP, N6RFM, and a couple of guys with no tone chatting on the
uplink. That seemed really odd for a beautiful Friday mid-afternoon pass.
73, Drew KO4MA
------------------------------
Message: 4
Date: Fri, 17 Oct 2014 18:12:40 -0400
From: Greg <gjd1958@xxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] G-5500 Rotor issue
Message-ID: <819D9F93-F485-4C50-9DCD-7BF94563794A@xxxxxxx.xxx>
Content-Type: text/plain; charset=windows-1252
Hi all,
This is a strange one for me that I can?t seem to solve. My elevation rotor
still operates up and down as usual. However, when I hold the ?Up? key when
the elevation starts at 0 degree?s, within a second or two the meter shoots
up to 180 degree?s. However, if I keep holding the ?Up? switch, the
elevator still goes smoothly as usual but the meter stays at the 180 mark.
When I hit the down button the elevation meter jumps back to 0 degrees in
a second or two. This while the rotator is still smoothly declining.
I retinned and rehooked the cables at the box entrance thinking one may have
shorted from box movement. Same result. Would a short somewhere down the
line cause this or do I have a bad meter or box switch. My mast mounted
elevation rotor works fine as far as functionality, just can?t get the
readings on the meter. Of course, this throws off the LVB Tracker.
Any other thoughts?
Greg
N3MVF
------------------------------
Message: 5
Date: Fri, 17 Oct 2014 23:22:58 +0100
From: "Jim Heck" <jimlist@xxxx.xxx>
To: "'AMSAT BB'" <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] FUNcube/AO-73 Mode change
Message-ID: <000401cfea58$e9c4bc80$bd4e3580$@xxx>
Content-Type: text/plain; charset="us-ascii"
Hi Folks,
FUNcube/AO-73 is now in continuous transponder mode with low
power beacon, as at 22:22 UTC. Change back to Auto eclipse mode
planned for Sunday PM UTC.
Enjoy the transponder
73s Jim G3WGM
------------------------------
Message: 6
Date: Fri, 17 Oct 2014 20:23:40 -0400
From: "J Bennett" <Ke4kol@xxxxxxxxx.xxx>
To: "'Greg'" <gjd1958@xxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] [Bulk] G-5500 Rotor issue
Message-ID: <006a01cfea69$c53ba5c0$4fb2f140$@xxx>
Content-Type: text/plain; charset="us-ascii"
Mine is doing the same thing. Let me know if you find a solution as I will
if I do.
Jim, Ke4kol.
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Greg
Sent: Friday, October 17, 2014 6:13 PM
To: amsat-bb@xxxxx.xxx
Subject: [Bulk] [amsat-bb] G-5500 Rotor issue
Hi all,
This is a strange one for me that I can't seem to solve. My elevation rotor
still operates up and down as usual. However, when I hold the "Up" key when
the elevation starts at 0 degree's, within a second or two the meter shoots
up to 180 degree's. However, if I keep holding the "Up" switch, the
elevator still goes smoothly as usual but the meter stays at the 180 mark.
When I hit the down button the elevation meter jumps back to 0 degrees in
a second or two. This while the rotator is still smoothly declining.
I retinned and rehooked the cables at the box entrance thinking one may have
shorted from box movement. Same result. Would a short somewhere down the
line cause this or do I have a bad meter or box switch. My mast mounted
elevation rotor works fine as far as functionality, just can't get the
readings on the meter. Of course, this throws off the LVB Tracker.
Any other thoughts?
Greg
N3MVF
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available to all
interested persons worldwide without requiring membership. Opinions
expressed are solely those of the author, and do not reflect the official
views of AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 7
Date: Fri, 17 Oct 2014 21:23:34 -0400
From: Goody K3NG <goody.k3ng@xxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Cubesat Vibration Test
Message-ID:
<CAK2SEyuvVMB2=G3OYRQnt5C9eNQpmeOhrMGpKLCqA+tBQ0mi7w@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
I don't have anything to add to the discussion, I just wanted to say I love
threads like this and I'd like to see more. I'll never be a rocket
scientist, but reading about all the design considerations, experiences,
testing, trials and tribulations, and minutia involved in engineering and
launching these things is cool.
73
Goody
K3NG
On Thu, Oct 16, 2014 at 9:19 AM, Glen Gardner <glen.gardner@xxxxxxx.xxx>
wrote:
>
> This is why you do the shake tests.
>
>
> Two thoughts come to mind here...
>
> building for 25 G vibration and 1000 G shock is pretty much consumer grade
> stuff and is easily achieved with off the shelf components.
>
> The hard part comes in when you realize that riding on a solid rocket
> motor is brutal, and results in resonances that sweep through a wide range
> of frequencies during the burn. The vibration tables generally emulate
> this really well and weaknesses can be exposed in short order. If the
> circuit boards exhibit a resonance , components can literally be popped
> right off of the board... and sometimes weaknesses internal to the die
> bonding in some components can turn up as well.
>
> If I had to rely on conformal coating to stake the parts for 22G, I'd be
> worried about the payload....
>
>
> Glen
> AA8C
>
>
>
>
> On 10/16/2014 01:01 PM, Harvey N. Vordenbaum wrote:
>
>> No conformal coating?
>> hv
>>
>>
>> -----Original Message-----
>> From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
>> Behalf Of Robert Bruninga
>> Sent: Wednesday, October 15, 2014 7:18 PM
>> To: amsat-bb@xxxxx.xxx
>> Subject: [amsat-bb] Cubesat Vibration Test
>>
>> To see the violence that a cubesat has to go through, here is a test we
>> did today on a power supply board.
>>
>> http://aprs.org/psat/Vibe-coil-test1724.MOV (1 meg file)
>>
>>
>>
>> It failed even before we got to the 22G requirement!
>>
>>
>>
>> Yes, it is rocket science? a nasty place to ride?
>>
>>
>>
>> Bob, WB4aPR
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available to
>> all interested persons worldwide without requiring membership. Opinions
>> expressed are solely those of the author, and do not reflect the official
>> views of AMSAT-NA.
>> 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. AMSAT-NA makes this open forum available
>> to all interested persons worldwide without requiring membership.
>> Opinions expressed
>> are solely those of the author, and do not reflect the official views of
>> AMSAT-NA.
>> 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. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
------------------------------
Message: 8
Date: Fri, 17 Oct 2014 21:26:15 -0500
From: "Gary Mayfield" <kk0sd@xxxxx.xxx>
To: "'Greg'" <gjd1958@xxxxxxx.xxx>, <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] G-5500 Rotor issue
Message-ID: <021201cfea7a$e4cdb570$ae692050$@xxx>
Content-Type: text/plain; charset="us-ascii"
The potentiometer in the rotator is intermittent.
73,
Joe kk0sd
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Greg
Sent: Friday, October 17, 2014 5:13 PM
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] G-5500 Rotor issue
Hi all,
This is a strange one for me that I can't seem to solve. My elevation rotor
still operates up and down as usual. However, when I hold the "Up" key when
the elevation starts at 0 degree's, within a second or two the meter shoots
up to 180 degree's. However, if I keep holding the "Up" switch, the
elevator still goes smoothly as usual but the meter stays at the 180 mark.
When I hit the down button the elevation meter jumps back to 0 degrees in
a second or two. This while the rotator is still smoothly declining.
I retinned and rehooked the cables at the box entrance thinking one may have
shorted from box movement. Same result. Would a short somewhere down the
line cause this or do I have a bad meter or box switch. My mast mounted
elevation rotor works fine as far as functionality, just can't get the
readings on the meter. Of course, this throws off the LVB Tracker.
Any other thoughts?
Greg
N3MVF
_______________________________________________
Sent via AMSAT-BB@xxxxx.xxx. AMSAT-NA makes this open forum available
to all interested persons worldwide without requiring membership. Opinions
expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
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: Sat, 18 Oct 2014 08:44:30 +0000 (UTC)
From: Jean-Claude Aveni <jean-claude.aveni@xxxxxxx.xx>
To: amsat NA <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] J'aimerais vous inviter ? rejoindre mon r?seau
professionnel sur LinkedIn.
Message-ID:
<1597716490.1666201.1413621870675.JavaMail.app@xxxxxxxxxxxx.xxxx>
Content-Type: text/plain;charset=UTF-8
Bonjour amsat,
J'aimerais que vous rejoigniez mon r?seau pour partager des nouvelles et
rester en contact.
Jean-Claude
Accepter?:
http://www.linkedin.com/blink?simpleRedirect=0Mc3oNe3gVejgUcjoVdj4VczARfkh9rCZ
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msJr6RBfmtKqmJzon9Q9ClQqnpKimtBkClOs3Rx9D0QbmBBqTxMpj5FbjdHemlRrzRBfP9SbSkLrmZ
zbCVFp6lHrCBIbDtTtOYLeDdMt7hE&msgID=I8162784164_1&markAsRead=
Vous avez re?u une invitation ? rejoindre un r?seau. LinkedIn utilise votre
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t7hE&msgID=I8162784164_1&markAsRead=Cet e-mail est destin? ? amsat
NA. D?couvrez pourquoi nous avons inclus ceci en suivant ce lien?:
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qmhBqSVFr2VTtTsLbPFMt7hE&msgID=I8162784164_1&markAsRead=
© 2014, LinkedIn Corporation. 2029 Stierlin Ct., Mountain View, CA
94043, USA.
------------------------------
_______________________________________________
Sent via amsat-bb@xxxxx.xxx.
AMSAT-NA makes this open forum available to all interested persons worldwide
without requiring membership. Opinions expressed
are solely those of the author, and do not reflect the official views of
AMSAT-NA.
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 9, Issue 358
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