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CX2SA > SATDIG 22.07.14 19:25l 877 Lines 32951 Bytes #999 (0) @ WW
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Sent: 140722/1723Z @:CX2SA.SAL.URY.SA #:8154 [Salto] FBB7.00e $:AMSATBB9250
From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: I want this. I want that. Here comes another FM LEO sat.
(Phil Karn)
2. Re: Amazon Smile (Bryce Salmi)
3. Re: [amsatindia] Good Bye HAMSAT-VO52 - Rest In Peace
(Ved Prakash Sandlas)
4. Re: Digital Satellites Question (Douglas Phelps)
5. Re: I want this. I want that. Here comes another FM LEO sat.
(Bryce Salmi)
6. Re: Digital Satellites Question (Bryce Salmi)
7. Round-world balloon approaching Noth America M0XER-3
(Robert Bruninga)
8. ISEE-3 + Final bookings for Colloquium Gala Meal (M5AKA)
9. I don't care (Bob- W7LRD)
10. AMSAT where are we going for what it is worth. (Rich/wa4bue)
11. Re: I want this. I want that. Here comes another FM LEO sat.
(Jerry Buxton)
----------------------------------------------------------------------
Message: 1
Date: Tue, 22 Jul 2014 09:00:40 -0700
From: Phil Karn <karn@xxxx.xxx>
To: Clayton Coleman <kayakfishtx@xxxxx.xxx>, AMSAT-BB
<amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] I want this. I want that. Here comes another
FM LEO sat.
Message-ID: <53CE8AA8.3040208@xxxx.xxx>
Content-Type: text/plain; charset=utf-8
On 07/22/2014 06:49 AM, Clayton Coleman wrote:
> Hi Phil,
>
> The new era I speak of is AMSAT-NA's foray into CubeSats.
Well, I guess I could read that as "when all you have is lemons, make
lemonade". AMSAT used to make spacecraft that, while small by
commercial/military/scientific standards, dwarfed a cubesat. So I don't
see cubesats as an advance.
Although miniaturization of electronics and improvements in solar cell
efficiency do help us cram everything into the tiny form factor, the
fact remains that we are now forced to pay far more to launch far less
than we used to.
I guess that's a "new era" in the same way that the Arab Oil Embargoes
of 1973 and 1979 launched a glorious new era in automobile transportation...
Sure, this is a fact of life that we can't do anything about, despite
the supreme irony of AMSAT pioneering small satellites so well that we
created a whole new industry with which we must now fiercely compete for
launches. Economics says that when demand outstrips supply, prices go
up. So they have. A lot.
Like it or not, we have to adapt to changing realities. We used to get
launches for free or at nominal rates, so our main investment in each
satellite was just the volunteer engineers' time and the cost of those
components we could not beg, borrow or steal.
But now that the launch cost dominates the budget of everything we fly,
it's time to take a very serious look at what we get from each one. Said
another way, it's time to look at how much MORE we could get from our
very substantial investment in each launch. Every launch of a FM cubesat
depletes a very large chunk of AMSAT funds that cannot be spent on
launching something else.
In other words, I'm encouraging people to look at the *opportunity cost*
of every additional analog FM satellite we launch. People don't yet
realize just how huge it is because they only know 1960s analog
technology. They simply don't realize how much more could be done with
21st century technology. That's what I'm trying to change, so far
without much success.
--Phil
------------------------------
Message: 2
Date: Tue, 22 Jul 2014 09:03:08 -0700
From: Bryce Salmi <bstguitarist@xxxxx.xxx>
To: Brenton Salmi <kb1lqd@xxxxx.xxx>
Cc: AMSAT Mailing List <amsat-bb@xxxxx.xxx>, Burns Fisher
<burns@xxxxxx.xx>
Subject: Re: [amsat-bb] Amazon Smile
Message-ID:
<CAN5j0srQWvLTAf28=JN_a72HPMxdE5m9vSuP+bzOLJ4Kyq_9vA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Thats actually an impressive total, the percentage for AMSAT Is small but
wow! Every bit counts.
On Tuesday, July 22, 2014, Brenton Salmi <kb1lqd@xxxxx.xxx> wrote:
> Wait, if my math is right that means a total of $13,324 has gone through
> Amazon smile in the name of AMSAT!
>
>
>
> - Brent
>
>
> On Tue, Jul 22, 2014 at 7:45 AM, Martha <martha@xxxxx.xxx <javascript:;>>
> wrote:
>
> > To date, we have received $66.62 from Amazon Smile
> >
> > 73- Martha
> >
> >
> > On Tue, Jul 22, 2014 at 8:35 AM, Burns Fisher <burns@xxxxxx.xx> wrote:
> >
> > > I've also signed up, and have probably bought a few hundred dollars
> worth
> > > of stuff since then. .5% is not huge, and is probably more helpful to
> > > Amazon (via publicity) than to AMSAT, but it can't hurt.
> > >
> > > I would add that usually I go directly to the Smile page with my link,
> > but
> > > on the rare occasion when I might follow another link or even type in
> > > amazon.com, Amazon reminds me that I am signed up for Smile. Not bad.
> > >
> > > Burns
> > >
> > >
> > > On Tue, Jul 22, 2014 at 2:12 AM, Bryan Herbert <ke6zgp@xxxxx.xxx
> <javascript:;>> wrote:
> > >
> > > > I also signed up and have bought a few things but it is my
> > understanding
> > > > only 0.5% of the purchase price of eligible products goes to AMSAT.
> So
> > if
> > > > you buy a DVD worth $19.99 and it's eligible for AmazonSmile, roughly
> > > $0.10
> > > > of that $19.99 will go to AMSAT but I think Amazon waits until
> > something
> > > > like $100 is collected before sending any money to AMSAT.
> > > >
> > > > --
> > > > Bryan Herbert - KE6ZGP
> > > > Newhall, CA. DM04RJ USA
> > > > http://bryanherbert.com
> > > > http://twitter.com/ke6zgp
> > > > _______________________________________________
> > > > Sent via AMSAT-BB@xxxxx.xxx <javascript:;>. 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 <javascript:;>. 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
> > >
> >
> >
> >
> > --
> > 73- Martha
> > _______________________________________________
> > Sent via AMSAT-BB@xxxxx.xxx <javascript:;>. 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 <javascript:;>. 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: Tue, 22 Jul 2014 20:52:17 +0530
From: Ved Prakash Sandlas <vpsandlas@xxxxx.xxx>
To: amsatindia@xxxxxxxxxxx.xxx
Cc: "BB, AMSAT" <amsat-bb@xxxxx.xxx>, VUHAMS <vuhams@xxxxxxxxxxx.xxx>,
"HAMS, ISRO" <isrohams@xxxxxxxxxxx.xxx>
Subject: Re: [amsat-bb] [amsatindia] Good Bye HAMSAT-VO52 - Rest In
Peace
Message-ID:
<CAPmiifZwF07JBz1-94OfM2baA+cKKXUW=x-qNCfePs_LPP-W3Q@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Dear Mani and Suresh,
This is the culmination of an important phase of 'Ham-History' of India.
'HAMSAT VO-52' was a dream fulfilled; an emotional outcome of many
contributors and well-wishers. I would like to join you all in thanking and
expressing heartfelt gratefulness to all those who made it possible to
realize HAMSAT VO-52. May we all hope and pray for the next phase of
'Ham-India in Space' sooner than later; with higher power and in higher
orbit.
73,
Ved
VU2VP
On Mon, Jul 21, 2014 at 8:33 PM, 'Mani [VU2WMY/KJ6LRS]' wmy@xxxx.xxx.xx
[amsatindia] <amsatindia@xxxxxxxxxxx.xxx> wrote:
>
>
> Dear Friends,
>
> With heavy heart, I sadly convey, that our little angel ?HAMSAT VO-52?
> would no more be able to offer her services to the ?Amateur Radio
> Fraternity. HAMSAT VO-52 succumbed in Space on 11th July 2014, while she
> was on her 49,675th orbit, due to the failure of on-board lithium ion
> batteries that have met their end of life.
>
> Although her desires were to be at work with other systems and sub-systems
> working normal as per the latest telemetry received, the on-board computer
> recurring to ?Reset? mode due to the failure of batteries is preventing her
> to do so. Hence, it is decided not to expect any more meaningful and
> reliable services from HAMSAT VO-52.
>
> Since 11th July, every best possible effort has been put in by the
> spacecraft controllers here in ISTRAC Bangalore to revive her back to life
> and to help her with work load, so she won?t be swamped when she returns,
> but with no luck. Though it is hard, the HAMSAT VO-52 designers and
> controllers insist that the time has come to let the little angel free in
> space to go drifting on her own from their care and custody.
>
> Thus, today 21st July 2014, ISRO have decommissioned 'HAMSAT-VO52'
> officially.
>
> We all here in ISRO do definitely hope that ?HAMSAT VO-52? worked
> tirelessly and was a good friend to the ?Amateur Radio Fraternity? around
> the World. We are sure that HAMSAT was loved by all who worked through her.
> Though, we are deeply saddened by the loss of HAMSAT VO-52, but she will
> never be forgotten and far from our hearts, minds and memories.
>
> HAMSAT VO-52 will always be remembered by all of us here in ISRO as one of
> the greatest satellites of ours.
>
> Dear ?HAMSAT?, looking at the sky, we all say ?Good Bye? to you. You?ll be
> greatly missed. Rest in Peace.
>
> Nevertheless, at this point of time, on behalf of the World Amateur Radio
> Fraternity, we thank each and everyone who contributed to the great success
> of ?HAMSAT?.
>
> Particularly, our sincere thanks to the Chairman ISRO, Dr. K.
> Radhakrishnan, past chairmen Dr. Kasthurirangan, Dr. G. Madhavan Nair,
> Director-ISAC Dr. S.K.Shiva Kumar, past ISAC Directors Dr. P.S. Goel, Dr.
> Shankara, Dr. T.K. Alex, Director-ISTRAC Shri. B.S. Chandrasekhar,
> scientific secretary Dr. Koteshwar Rao, Project Director-Shri. J.P. Gupta,
> Deputy project Directors, Mission Director-Shri. R.Suresh, Operations
> Director-Shri. Parimalarangan and each and every person directly or
> in-directly contributed.
>
> At this point of time, we also thank AMSAT-India and in particular, late
> Shri. Nagesh Upadhyaya-VU2NUD, Shri. B.S. Gajendra Kumar-VU2BGS, Shri.
> Prathap Kumar-VU2POP, Air Commodore. Subramanian-VU2UV, Shri. V.P.
> Sandlas-VU2VP, Dr.R. Ramesh-VU2RMS, Shri. Nitin-VU3TYG, Mr. Williams
> Leijenaar PE1RAH and each and every member.
>
>
>
------------------------------------------------------------------------------
------------------------------------------------------------------------------
------------
> Pasted below is the message from Mr. R. Suresh, Mission Director:
>
>
> HAMSAT, the first small satellite by ISRO has been Decommissioned after
> nearly a decade of service to the World Ham community.
>
>
> A true masterpiece among small satellites, designed for one year mission
> life, but exceeded all expectations by serving for almost 10 years. A truly
> autonomous satellite, with ?Zero maintenance? in terms of Mission
> operations, it provided a springboard to test many new concepts such as
> BMU. LI-ion based power system, automatic Spin rate control and Auto SAOC
> for maintaining the Satellite attitude without any ground commanding.
>
> HAMSAT known as ?OSCAR-52? among the Amateur HAM operators has been very
> popular because of its high sensitivity receiver and strong transmitter.
> Indian Radio Amateurs on many occasions conveyed to us that they have been
> greatly honored to share the adulations showered on ISRO and INDIA by the
> International Radio Amateur for gifting this wonderful satellite "HAMSAT".
>
>
> I take this opportunity to applaud the HAMSAT teams at ISAC, ISTRAC and
> other centre for their efforts and support, which has made ISRO proud
> among the HAM users across the globe.
>
>
> R,SURESH
> MISSION DIRECTOR
> HAMSAT
>
>
>
------------------------------------------------------------------------------
------------------------------------------------------------------------------
-------------------------------
>
>
>
>
>
>
>
>
> Mani [VU2WMY/KJ6LRS]
> Secretary & Station-In-Charge
> Upagrah Amateur Radio Club VU2URC
> ISRO Satellite Centre
> HAL Airport Road, Bangalore-560 017.
> Phone:(Office)91-80-25082598/25082054/25082192
> Mobile: 91-9880 341 456
> E-mail ID: wmy@xxxx.xxx.xx
> vu2wmy_mani@xxxxx.xxx
> isrohams@xxxxx.xxx
>
>
> ------------------------------
>
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------------------------------
Message: 4
Date: Tue, 22 Jul 2014 08:50:09 -0700
From: Douglas Phelps <dphelps1@xxxxxxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Digital Satellites Question
Message-ID:
<1406044209.57820.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
And, in a related question, wouldn't more proccessing demand more power from
the batteries/solar panels? ?I know my PC cetainly draws a lot more power
when the CPO is working hard. ?Just curiosity questions, I support digital,
FM, and Linear satellites. ?If it were not for FM sats, I would never have
gotten interested in satelites at all. ?The congestion on the FM sateliltes
drove me to start using linear satellites.
Doug
K9DLP
>________________________________
> From: Dave Marthouse <dmarthouse@xxxxx.xxx>
>To: amsat-bb@xxxxx.xxx
>Sent: Tuesday, July 22, 2014 10:41 AM
>Subject: [amsat-bb] Digital Satellites Question
>
>
>I have been following the digital satellite discussion with great
>interest.? Both sides have valid points.
>
>I would like to pose a strictly engineering question.? Keep in mind that
>I'm not an engineer but consider myself reasonably well read on the
>amateur satellite
>world.
>
>A digital satellite would imply loads of processing power on the
>satellite.? I would assume that with this additional activity that there
>will be more
>hardware on the bird with more complexity as this won't be a bent pipe
>system.
>
>With more physical hardware of much more complexity in orbit what about
>the radiation hazards to this more complex and physical hardware heavier
>system?? Wouldn't a software based system be prone to radiation induced
>hardware and software glitches?
>What about shielding etc?
>
>
>
>Dave Marthouse N2AAM
>dmarthouse@xxxxx.xxx
>
>
>--
>Dave Marthouse
>dmarthouse@xxxxx.xxx
>
>_______________________________________________
>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: Tue, 22 Jul 2014 09:34:11 -0700
From: Bryce Salmi <bstguitarist@xxxxx.xxx>
To: Phil Karn <karn@xxxx.xxx>
Cc: AMSAT-BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] I want this. I want that. Here comes another
FM LEO sat.
Message-ID:
<CAN5j0soN-AKEq9JM18Wyn3PBnJWFYzUrZfVeDYhBqx0eHLjdCg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Phil,
You're missing the point. Do I personally think Fox-1 is pushing the
bleeding edge of technology? No. Buts it's a great step to building a good
foundation. I think your frustration with the lack of digital birds is
overcoming an understanding of where AMSAT currently is and where it's
going. No one disagrees with you on wanting more advanced and possibly
digital modes. I for one am yearning for digital birds.
I got my ticket in high school in 2004. I didn't really use satellites
until a few years later so I missed out on ao40 and others. My
understanding now of amsats history may be skewed but it's the best I can
summarize.
After ao40 it appears to me many of the original players were getting too
old to keep volunteering and possibly got let down by the events of ao40.
Understandably, some chose to stop. From what I can tell reading through
email archives, eagle caused some problems and some left then too. Past is
past, I'll highlight it. Throw ITAR into the mix and now we are here at
Fox, AMSATS first series of satellites in decades.
AO51 seemed to be a collaboration of AMSAT and space quest, and suitsat and
arissat were fun and neat projects. fox is amsats chance to get a base of
solid engineering to build upon. The main payload is analog. There are
experimental PCB slots. fox-2 will have even more space. I think digital
modes will find their way on there eventually when AMSAT is ready.
Very launch of a fox-1 satellite is building flight heritage on the
designs. I work in the spacecraft and launch industry, every rocket that
flies and spacecraft that safely returns to earth is heritage on our
designs. It's worth it's weight in gold so to speak.
AMSAT has enough volunteers with the right skills to build fox 1
satellites. I personally think all of us, including me, have some to learn
before we attempt crazy ideas. Heck, fox-1 is brilliant in that it allows
AMSAT to fulfill a baseline analog fm and transponder need in the cubesat
form factor while allowing extra space for experiments whether they are
gyros or digital modes. These experiments can succeed or fail and not harm
the base satellite of done right. The only crappy part about a 1U cubesat
is it's super tiny power budget. fox-2 will be the first really power
capable satellite and I'm excited as hell for it.
I wrote this on my iPhone while riding into work. Sorry for any misspelling
:)
Bryce
On Tuesday, July 22, 2014, Phil Karn <karn@xxxx.xxx> wrote:
> On 07/22/2014 06:49 AM, Clayton Coleman wrote:
> > Hi Phil,
> >
> > The new era I speak of is AMSAT-NA's foray into CubeSats.
>
> Well, I guess I could read that as "when all you have is lemons, make
> lemonade". AMSAT used to make spacecraft that, while small by
> commercial/military/scientific standards, dwarfed a cubesat. So I don't
> see cubesats as an advance.
>
> Although miniaturization of electronics and improvements in solar cell
> efficiency do help us cram everything into the tiny form factor, the
> fact remains that we are now forced to pay far more to launch far less
> than we used to.
>
> I guess that's a "new era" in the same way that the Arab Oil Embargoes
> of 1973 and 1979 launched a glorious new era in automobile
> transportation...
>
> Sure, this is a fact of life that we can't do anything about, despite
> the supreme irony of AMSAT pioneering small satellites so well that we
> created a whole new industry with which we must now fiercely compete for
> launches. Economics says that when demand outstrips supply, prices go
> up. So they have. A lot.
>
> Like it or not, we have to adapt to changing realities. We used to get
> launches for free or at nominal rates, so our main investment in each
> satellite was just the volunteer engineers' time and the cost of those
> components we could not beg, borrow or steal.
>
> But now that the launch cost dominates the budget of everything we fly,
> it's time to take a very serious look at what we get from each one. Said
> another way, it's time to look at how much MORE we could get from our
> very substantial investment in each launch. Every launch of a FM cubesat
> depletes a very large chunk of AMSAT funds that cannot be spent on
> launching something else.
>
> In other words, I'm encouraging people to look at the *opportunity cost*
> of every additional analog FM satellite we launch. People don't yet
> realize just how huge it is because they only know 1960s analog
> technology. They simply don't realize how much more could be done with
> 21st century technology. That's what I'm trying to change, so far
> without much success.
>
> --Phil
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx <javascript:;>. 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: 6
Date: Tue, 22 Jul 2014 09:56:47 -0700
From: Bryce Salmi <bstguitarist@xxxxx.xxx>
To: dmarthouse@xxxxx.xxx
Cc: Amsat BB <amsat-bb@xxxxx.xxx>
Subject: Re: [amsat-bb] Digital Satellites Question
Message-ID:
<CAN5j0sqUtX1Y+Nd3AuMp+8UQSftyT3JQQ8h-SAtLD-Ys5pzuhg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
You don't necessarily need to do the processing on the satellite. There
still is concern over radiation and power for all Fox-1 satellites. To run
the FM transponder, IHU, experiments, etc. all on 1.9W to 2.5W (varies)
from the solar cells is extremely difficult. That's less power on average
than most HTs. It's all an interesting problem as software can be
safegaurded to a degree by using FRAM memory (instead of voltages you store
data in piezoelectric/magnetic states) and having several copies of memory
you compare with each other as radiation is random and it's highly unlikely
the same bit will be flipped in three different copies. Periodically
checking and correcting bits (with the voted 2/3 majority) is one way to
mitigate many errors.
Truth is, AMSAT needs a really good foundation. FM/Telemetry
communications, IHU (computer), Battery system, solar cell power system
(MPPT or other form of management, etc. Once these systems stabilize and
gain heritage then they can be relied upon and not really worried about.
Volunteer hours had be focused on other areas.
Bryce
On Tue, Jul 22, 2014 at 8:41 AM, Dave Marthouse <dmarthouse@xxxxx.xxx>
wrote:
> I have been following the digital satellite discussion with great
> interest. Both sides have valid points.
>
> I would like to pose a strictly engineering question. Keep in mind that
> I'm not an engineer but consider myself reasonably well read on the amateur
> satellite
> world.
>
> A digital satellite would imply loads of processing power on the
> satellite. I would assume that with this additional activity that there
> will be more
> hardware on the bird with more complexity as this won't be a bent pipe
> system.
>
> With more physical hardware of much more complexity in orbit what about
> the radiation hazards to this more complex and physical hardware heavier
> system? Wouldn't a software based system be prone to radiation induced
> hardware and software glitches?
> What about shielding etc?
>
>
>
> Dave Marthouse N2AAM
> dmarthouse@xxxxx.xxx
>
>
> --
> Dave Marthouse
> dmarthouse@xxxxx.xxx
>
> _______________________________________________
> 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: 7
Date: Tue, 22 Jul 2014 12:57:27 -0400
From: Robert Bruninga <bruninga@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Round-world balloon approaching Noth America
M0XER-3
Message-ID: <56dcaa0cbfcac80478326210444f50d6@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=UTF-8
Regarding real LOW Earth ?orbits?, G6UIM reports a Balloon launched in the
UK is approaching Washington state from across Asia and the Pacific right
now.
See: http://spacenear.us/tracker/ look for Balloon B-63
It is being well received by the APRS network in Canada, Washington and
Oregon as it approaches Vancoover Island as shown here:
http://aprs.org/balloons/M0XER-3.jpg
That image from Lynn, author of APRSIS32.
Bob, Wb4APR
------------------------------
Message: 8
Date: Tue, 22 Jul 2014 17:57:27 +0100
From: M5AKA <m5aka@xxxxx.xx.xx>
To: AMSAT BB <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] ISEE-3 + Final bookings for Colloquium Gala Meal
Message-ID:
<1406048247.8496.YahooMailNeo@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Day visitors to this weekends International Space Colloquium in Guildford
should note that if they wish to attend the Gala Meal on the Saturday
evening they must book it at
http://shop.amsat.org.uk/shop/category_10/Colloquium-2014-Fri-25-July-to-Sun-2
7-July.html
(Please note that we need to give the hotel 48 hours notice for the dinner,
so booking will close on Wed)
The schedule is at http://amsat-uk.org/colloquium/colloquium-2014/ it is
hoped it may be possible to provide a live demonstration of telemetry from
the ISEE-3 (ICE) spacecraft during the ISEE-3 presentation by Achim
Vollhardt DH2VA and Mario Lorenz DL5MLO from AMSAT-DL.
The BYOB ?CubeSat? Workshop takes place at the Surrey Space Centre,
University of Surrey, Guildford (1 km from the Holiday Inn) on Friday,
July 25. The day will include ad-hoc tours to SSC?s cleanroom,
ground?station, and new CubeSat experimentation facilities.
You must register in advance to attend the BYOB CubeSat Workshop.
Information on Free registration is at
http://amsat-uk.org/2014/07/15/byob-cubesat-day-july-25-free-registration/
----
Trevor M5AKA
AMSAT-UK
Website http://amsat-uk.org/
Facebook https://www.facebook.com/amsatuk
Twitter https://twitter.com/AMSAT_UK
----
------------------------------
Message: 9
Date: Tue, 22 Jul 2014 17:04:37 +0000 (UTC)
From: Bob- W7LRD <w7lrd@xxxxxxx.xxx>
To: "amsat-bb@xxxxx.xxx BB" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] I don't care
Message-ID:
<2118709390.24920329.1406048677246.JavaMail.root@xxxxxxx.xxx>
Content-Type: text/plain; charset=utf-8
Not withstanding all the brouhaha over various satellite types.? I don't
care if it's FM, I don't care if it's digital, I don't care if it's linear,
I don't care if it's LEO, I don't care if it's MEO, I don't care if it's
HEO.? To quote Frank-K4FEG, "work 'em till the antennas vaporize".? I would
prefer a AO-40 (sobsob), until then I'll do what Frank suggests!
73 Bob W7LRD
------------------------------
Message: 10
Date: Tue, 22 Jul 2014 13:18:01 -0400
From: "Rich/wa4bue" <richard.siff@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] AMSAT where are we going for what it is worth.
Message-ID: <3A86D2BEA14B495FAA7A900F47E67880@xxxxxxxxx>
Content-Type: text/plain; format=flowed; charset=iso-8859-1;
reply-type=original
Been a member of AMSAT since the early 80s. Like most of you joined to
support the SAT Program. Most of us probably joined for the same reason.
How does AMSAT survive? Survival is through volunteers and financial
resources. Where does that come from????
Like any other amateur radio club only a few help do!!
A while back I asked what is AMSAT's STRATEGIC PLAN?
Technology has changed drastically since I joined. Has the plan changed.
I agree FM satellites are the easiest point of entrance for a new SAT
communicator. I disagree with I one frequency SAT. That is an expensive
way to fill in the GAP.
FOX seems to be a great answer to entry levels operators, possibly the
majority of the operators.
With that said, Linear Transponders like AO 7 and FO 29 at higher altitudes
are needed. We have lost VO 52.
It is hard to use the birds in our K4AMG mentoring program since their
orbits are mostly incompatible with classroom times. NO SOLUTION IN SITE.
So there is a need to plan ahead for more accessible birds with more Linear
transponders and other features. How do we get there?
A strategic plan accesses the current mission and goals to achieve a future
vision.
Your volunteer time and money can make this happen.
One step would be enhanced Field Organization.
When we started the K4AMG MARC, Inc. there was no field organization in our
area. Plenty of help from A FAR but no one with hands on experience
locally.
Just a member
Rich
W4BUE
PRES K4AMG.org
------------------------------
Message: 11
Date: Tue, 22 Jul 2014 12:19:27 -0500
From: Jerry Buxton <amsat@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] I want this. I want that. Here comes another
FM LEO sat.
Message-ID: <53CE9D1F.5060004@xxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 7/22/2014 9:21 AM, Paul Stoetzer wrote:
> Off the top of my head:
>
> AO-51 - Battery failure (Problem fixed in Fox series - shorted
> batteries will be cut loose from the circuit and the satellite will
> operate when in the sun)
This is an original conops for Fox-1 that did not make it to reality.
In fact this requirement was removed over a year ago because it could
not be suitably implemented to fit in the space available on the PCB.
You see, at that time new inhibit requirements that were received from
the launch providers caused us to have to re-engineer the battery
board. Moving the battery fail feature to another board was not
possible because we could not afford to be redesigning the whole
satellite, moving things around from each board to another to find room,
in the time left to delivery (at that point the launch had not yet
slipped to 2015 and we were due to deliver in March 2014). The choice
had to be made to cut the battery fail protection from the battery board
in order to incorporate the inhibits, to make the launch.
The removal of this feature was brought forth at the Symposium last
year, but the tale lives on. Yes, it was an outstanding feature but as
has been pointed out in some of the other emails going on right now,
there is a real limit to what we can fit in a 1U CubeSat and in the time
and under the provisions allowed by our rideshare.
Don't think it didn't get cut without a fight! :-)
The Fox-1A Engineering Unit is sitting on the official AMSAT test table
in my shack right now, having arrived FedEx this morning after some time
"in the shop" for fixes to hardware that we found in the first round of
EU testing and having a new IHU all installed. I'm getting ready to
load new software with the latest DSP and flight features. Stay tuned...
Jerry Buxton, N?JY
------------------------------
_______________________________________________
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 9, Issue 250
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