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CX2SA > SATDIG 16.06.08 21:16l 681 Lines 24300 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Re: Oscar Satellite Status Page? (Scott Wilson)
2. Re: Oscar Satellite Status Page? (Rafael Valdez G.)
3. Re: Spanish cubesat (AUVRAY GERARD)
4. Re: Oscar Satellite Status Page? (K7WIN - Jeff)
5. Nominations Closed (Martha)
6. Re: Frequency Co-ordination. (Mark Vandewettering)
7. Re: Spanish cubesat (Mark Vandewettering)
8. Public Consultation on the European table of frequency
allocations (Trevor)
9. Re: Frequency Co-ordination. (Trevor)
10. Re: Spanish cubesat (Bill Ress)
11. Re: Spanish cubesat (Simon Brown (HB9DRV))
----------------------------------------------------------------------
Message: 1
Date: Mon, 16 Jun 2008 06:15:43 -0700 (PDT)
From: Scott Wilson <s.wilson(AT)yahoo.com>
Subject: [amsat-bb] Re: Oscar Satellite Status Page?
To: APBIDDLE(AT)mailaps.org, amsat-bb(AT)amsat.org, Doug Kuitula
<ka8qcu(AT)pasty.net>
Message-ID: <476999.93738.qm(AT)web31804.mail.mud.yahoo.com>
Content-Type: text/plain; charset=us-ascii
That's the problem with IE. That's it's "friendly" error page. Someone in
Redmond must have confused the word with "useless". You can go into the
advanced preferences and turn off the friendly error messages and then when
you get an error loading a page, you'll actually get to see the real error
text. With the real text, you can probably figure it out, and if not, then
someone who knows can tell you.
s
--- On Mon, 6/16/08, Doug Kuitula <ka8qcu(AT)pasty.net> wrote:
> From: Doug Kuitula <ka8qcu(AT)pasty.net>
> Subject: [amsat-bb] Re: Oscar Satellite Status Page?
> To: APBIDDLE(AT)mailaps.org, amsat-bb(AT)amsat.org
> Date: Monday, June 16, 2008, 8:34 AM
> I'm using IE. It states that the page cannot be
> displayed. I haven't made
> any changes. Maybe it's with my ISP.
> ----- Original Message -----
> From: "Alan P. Biddle"
> <APBIDDLE(AT)UNITED.NET>
> To: <amsat-bb(AT)amsat.org>
> Sent: Monday, June 16, 2008 08:08
> Subject: [amsat-bb] Re: Oscar Satellite Status Page?
>
>
> > Doug,
> >
> > Working fine this morning using either IE or Firefox.
> What is it doing?
> > Hanging at loading the page, giving you error
> messages, or ???
> >
> > I don't normally use the page, but often check the
> AO-51 dedicated links.
> > Recently, I have noticed that often, but not always,
> the first time I try
> I
> > get a page of error messages, but the next and
> subsequent clicks take me
> > there.
> >
> > Alan
> > WA4SCA
> >
> >
> >
> > _______________________________________________
> > Sent via AMSAT-BB(AT)amsat.org. Opinions expressed are
> those of the author.
> > Not an AMSAT-NA member? Join now to support the
> amateur satellite program!
> > Subscription settings:
> http://amsat.org/mailman/listinfo/amsat-bb
>
> _______________________________________________
> Sent via AMSAT-BB(AT)amsat.org. Opinions expressed are those
> of the author.
> Not an AMSAT-NA member? Join now to support the amateur
> satellite program!
> Subscription settings:
> http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 2
Date: Mon, 16 Jun 2008 06:34:38 -0700
From: "Rafael Valdez G." <rafavaldez(AT)hotmail.com>
Subject: [amsat-bb] Re: Oscar Satellite Status Page?
To: Doug Kuitula <ka8qcu(AT)pasty.net>, <amsat-bb(AT)amsat.org>
Message-ID: <BAY111-W56A7DD788623A4246E338FDBA90(AT)phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"
> Hi all,> Is anyone else having trouble getting into the Oscar Satellite
Status Page? I haven't been able to access it for a few days.> I don't have an
e-mail address for KD5QGR to let him know.> 73 de Doug KA8QCU>
I've tried with no success on the weekend.
Rafael
http://sat-xe.blogspot.com
------------------------------
Message: 3
Date: Mon, 16 Jun 2008 11:29:13 +0200
From: "AUVRAY GERARD" <Gerard.Auvray(AT)alcatel-lucent.fr>
Subject: [amsat-bb] Re: Spanish cubesat
To: <amsat-bb(AT)AMSAT.Org>
Message-ID:
<30B927A9A4551D468ED169BCE003DCB8793092(AT)FRMRSSMBS31.ad2.ad.alcatel.co
m>
Content-Type: text/plain; charset="iso-8859-1"
Hello,
It's nice to ask this question, but your question is too wide.
The amateur world is made by people interrested by all technologies. Probably,
you will have answer of people who want linear transponder, other with FM
transponder, other with packet ....
You should precise the constraints and specificaly the electrical power
available .
This last time , we have seen several messages of amateurs complaining about
picosat sending only telemetries or pictures.
Theses guy request to have linear transpondeur. They should not forget than on
a standard picosat (10x10x10)the electrical power is very very low, reducing
the number of solution for missions.
Gerard
F6FAO
-----Message d'origine-----
De : amsat-bb-bounces(AT)amsat.org [mailto:amsat-bb-bounces(AT)amsat.org] De
la part de rct(AT)uvigo.es
Envoy? : dimanche 15 juin 2008 19:08
? : amsat-bb(AT)amsat.org
Objet : [amsat-bb] Spanish cubesat
Dear colleagues,
The Telecommunication School at Vigo University, Spain, is developing a
cubesat that will be launched by ESA. It will transmit in amateur bands, and
the University radioclub (EA1RCT) is collaborating in the project. The design
is not yet closed and we can send proposals to the development team. The
radioclub is willing to hear ideas from the amateur radio comunity: we would
like to have a short list ready by next Thursday, June 26, so any proposal we
receive before then will be carefully read.
The satellite will be small and lightweight as you know, and it will run on a
short electrical budget. Moreover, the time schedule is very tight. One of the
main objectives is to test SDR systems in space (not necessarily in amateur
bands).
Neither the bands, power o full-duplex capability have been established. It
could eventually end up with just a telemetry beacon.
We would like to hear your opinions about what the amateur radio community
would prefer to carry on board, in these three scenarios:
? full-duplex communication capability (linear transponder, fm rep, etc) ?
half-duplex systems (digipeater?) ? beacon modes (afsk, psk, cw)
Best regards,
EA1RCT RadioClub Telecomunicaciones Vigo http://lostrego.uvigo.es
_______________________________________________
Sent via AMSAT-BB(AT)amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 4
Date: Mon, 16 Jun 2008 07:10:58 -0700
From: "K7WIN - Jeff" <k7win(AT)k7win.net>
Subject: [amsat-bb] Re: Oscar Satellite Status Page?
To: "Amsat Buleitin Board" <amsat-bb(AT)amsat.org>
Message-ID: <008d01c8cfba$cd31d180$c2295089(AT)nasw.ds.army.mil>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
Are you speaking of http://oscar.dcarr.org/?
I haven't been able to access this site for a few days with any browser from
any PC.
Jeff - K7WIN
----- Original Message -----
From: "Scott Wilson" <s.wilson(AT)yahoo.com>
To: <APBIDDLE(AT)mailaps.org>; <amsat-bb(AT)amsat.org>; "Doug Kuitula"
<ka8qcu(AT)pasty.net>
Sent: Monday, June 16, 2008 6:15 AM
Subject: [amsat-bb] Re: Oscar Satellite Status Page?
> That's the problem with IE. That's it's "friendly" error page. Someone in
> Redmond must have confused the word with "useless". You can go into the
> advanced preferences and turn off the friendly error messages and then
> when you get an error loading a page, you'll actually get to see the real
> error text. With the real text, you can probably figure it out, and if
> not, then someone who knows can tell you.
>
> s
>
>
> --- On Mon, 6/16/08, Doug Kuitula <ka8qcu(AT)pasty.net> wrote:
>
>> From: Doug Kuitula <ka8qcu(AT)pasty.net>
>> Subject: [amsat-bb] Re: Oscar Satellite Status Page?
>> To: APBIDDLE(AT)mailaps.org, amsat-bb(AT)amsat.org
>> Date: Monday, June 16, 2008, 8:34 AM
>> I'm using IE. It states that the page cannot be
>> displayed. I haven't made
>> any changes. Maybe it's with my ISP.
>> ----- Original Message -----
>> From: "Alan P. Biddle"
>> <APBIDDLE(AT)UNITED.NET>
>> To: <amsat-bb(AT)amsat.org>
>> Sent: Monday, June 16, 2008 08:08
>> Subject: [amsat-bb] Re: Oscar Satellite Status Page?
>>
>>
>> > Doug,
>> >
>> > Working fine this morning using either IE or Firefox.
>> What is it doing?
>> > Hanging at loading the page, giving you error
>> messages, or ???
>> >
>> > I don't normally use the page, but often check the
>> AO-51 dedicated links.
>> > Recently, I have noticed that often, but not always,
>> the first time I try
>> I
>> > get a page of error messages, but the next and
>> subsequent clicks take me
>> > there.
>> >
>> > Alan
>> > WA4SCA
>> >
>> >
>> >
>> > _______________________________________________
>> > Sent via AMSAT-BB(AT)amsat.org. Opinions expressed are
>> those of the author.
>> > Not an AMSAT-NA member? Join now to support the
>> amateur satellite program!
>> > Subscription settings:
>> http://amsat.org/mailman/listinfo/amsat-bb
>>
>> _______________________________________________
>> Sent via AMSAT-BB(AT)amsat.org. Opinions expressed are those
>> of the author.
>> Not an AMSAT-NA member? Join now to support the amateur
>> satellite program!
>> Subscription settings:
>> http://amsat.org/mailman/listinfo/amsat-bb
> _______________________________________________
> Sent via AMSAT-BB(AT)amsat.org. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
>
------------------------------
Message: 5
Date: Mon, 16 Jun 2008 11:44:46 -0400
From: Martha <martha(AT)amsat.org>
Subject: [amsat-bb] Nominations Closed
To: amsat-bb(AT)amsat.org, "Gould Smith" <wa4sxm(AT)gmail.com>
Message-ID:
<956751cf0806160844q31e5d2c5k39fd41202162ee3a(AT)mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Nominations for the 2008 AMSAT Board of Directors have closed. The list of
qualified candidates is: Tom Clark K3IO, Lou McFadin W5DID,
Bill Ress N6GHZ and Gould Smith WA4SXM. Three Directors' terms are up this
year. Directors serve a two year term. Ballots will be in the
mail by July 15th and must be received in Silver Spring no later than the
close of business on September 15th.
--
73- Martha
------------------------------
Message: 6
Date: Mon, 16 Jun 2008 10:10:15 -0700
From: Mark Vandewettering <kf6kyi(AT)gmail.com>
Subject: [amsat-bb] Re: Frequency Co-ordination.
To: amsat bb <amsat-bb(AT)AMSAT.Org>
Message-ID: <6DA3B262-D4B6-4D7F-9F3E-9C87B2EB629E(AT)gmail.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
On Jun 16, 2008, at 3:54 AM, John Hackett wrote:
> Can you imagine a future scenario....not too far in the future.
> 'Linear transponders on 2m & 70Cms?'.... don't be silly, those are the
> Cubesat bands :-).
While I don't question the utility, or even the necessity of frequency
coordination as part of the amateur satellite service, I am honestly
confused about some of this. If I recall correctly, 144.3 to 144.5
and 145.8 to 146.00 are allocated to the amateur satellite service.
That's at best 400khz of space available to us for all satellite
operations. It isn't hard to imagine that a single satellite could
actually cover each of the sub bands with a single linear transponder:
for instance, AO-40's 2m uplink was 145.840 to 145.990, covering
nearly 40% of all spectrum available on 2m to the amateur satellite
service. The new Phase 3E satellite has a proposed passband from
145.845 to
145.945 (according to http://www.amsat-dl.org/p3e/tabelle.htm).
And here's the thing: VO-52 already operates on 2m, centered on
145.900. DO-64 is carrying a
linear transponder centered on, you guessed it: 145.900. Right now,
that's not such a big deal. DO-64 isn't on yet, and they are both in
LEO orbits, so the chance of them both being up is relatively small
for any particular pass (indeed, running a simulation forward, I found
no conflicts between DO-64 and VO-52 in the next 30 days from my home
location). Both of these satellites had frequencies coordinated
through the IARU.
But if we do succeed in getting a satellite into HEO, it seems to me
that we already have a problem: I suspect that it renders the LEOs
transponder capability more or less moot. The simple fact is: there
isn't that much space available to us on 2m, and it fills up quickly,
coordinated or not.
We've also seen that even though the COMPASS-1 and new CUTE-1.7+APDII
sats were coordinated, they actually were coordinated to use the same
downlink frequency and were launched on the same vehicle. This isn't
all that big of an issue, their orbits are drifting apart, and they
use primarily narrow band CW telemetry on those frequencies, but
still, potential conflicts exist.
I guess my question is: how did these conflicts make it through
frequency coordination. Also, how do sider allocations get
processed? Everybody seems to want more linear transponders on board
(we have seen this request again in response to the Spanish cubesat's
request for comments) but if we were to get our HEO with linear
transponder, doesn't this spell significant interference problems for
VO-52, Do-64, and other satellites which might carry linear
transponders into LEO?
I'll thank you all in advance for your thoughtful comments...
Mark
------------------------------
Message: 7
Date: Mon, 16 Jun 2008 10:35:22 -0700
From: Mark Vandewettering <kf6kyi(AT)gmail.com>
Subject: [amsat-bb] Re: Spanish cubesat
To: rct(AT)uvigo.es
Cc: amsat-bb(AT)amsat.org
Message-ID: <75A75772-82C3-4284-BD37-BA6D56ABCB3E(AT)gmail.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed; delsp=yes
On Jun 15, 2008, at 10:07 AM, rct(AT)uvigo.es wrote:
> Dear colleagues,
>
> The Telecommunication School at Vigo University, Spain, is developing
> a cubesat that will be launched by ESA. It will transmit in amateur
> bands, and the University radioclub (EA1RCT) is collaborating in the
> project. The design is not yet closed and we can send proposals to the
> development team. The radioclub is willing to hear ideas from the
> amateur radio comunity: we would like to have a short list ready by
> next Thursday, June 26, so any proposal we receive before then will be
> carefully read.
>
> The satellite will be small and lightweight as you know, and it will
> run on a short electrical budget. Moreover, the time schedule is very
> tight. One of the main objectives is to test SDR systems in space (not
> necessarily in amateur bands).
>
> Neither the bands, power o full-duplex capability have been
> established. It could eventually end up with just a telemetry beacon.
> We would like to hear your opinions about what the amateur radio
> community would prefer to carry on board, in these three scenarios:
First of all, I'd like to thank you for asking. It is great that you
are seeking the input of the broader amateur satellite community in
your satellite project, and it is appreciated.
> ? full-duplex communication capability (linear transponder, fm rep,
> etc)
> ? half-duplex systems (digipeater?)
> ? beacon modes (afsk, psk, cw)
You will undoubtably get a bunch of requests for a full-duplex linear
transponder. It seems to me rather unlikely that a single unit
cubesat will have sufficient power budget to make such a thing
possible (DELFI-C3 is 3 units). You'll get lots of people
complaining if you put an FM repeater on board (some people hate the
FM birds with the burning passion of 1000 suns) but I think FM
repeaters are, well, pretty neat, and doing on in a cubesat would be
pretty cool, but the power budget is probably just as hard. I think a
half duplex satellite would be pretty interesting. Even a little APRS
digipeater in the sky would be a nice demonstration, and enable hams
to do actual QSOs.
Most cubesats in orbit now seem to downlink cw telemetry. It's a nice
choice because it is dead easy to decode, but not a very glamorous
one. It requires little power, but has little available bandwidth. I
think AFSK over FM is nice because it is easy for hams to decode, but
it kind of squanders your power budget needlessly. DELFI-C3 uses
BPSK, which is probably a good choice for higher bandwidth telemetry.
I'm personally interested in imaging, so I am intrigued by satellites
like CUTE (which carries essentially a cell phone camera), COMPASS-1
(which carries an as-yet untried camera down link) and SEEDS (which
has an SSTV downlink). While many ham radio purists might grumble, I
like this kind of stuff, and if you are experimenting with SDR, it
might not be difficult to add additional modes such as these.
Just some ideas...
Mark KF6KYI
>
>
>
> Best regards,
> EA1RCT RadioClub Telecomunicaciones Vigo
> http://lostrego.uvigo.es
>
>
>
> _______________________________________________
> Sent via AMSAT-BB(AT)amsat.org. Opinions expressed are those of the
> author.
> Not an AMSAT-NA member? Join now to support the amateur satellite
> program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 8
Date: Mon, 16 Jun 2008 17:27:56 +0000 (GMT)
From: Trevor <m5aka(AT)yahoo.co.uk>
Subject: [amsat-bb] Public Consultation on the European table of
frequency allocations
To: AMSAT BB <amsat-bb(AT)amsat.org>
Message-ID: <670595.51174.qm(AT)web27204.mail.ukl.yahoo.com>
Content-Type: text/plain; charset=utf-8
The European Radiocommunication Office (ERO) has today (16th June) announced a
public consultation on the European table of frequency allocations and
utilisations in the frequency range 9 kHz to 3000 GHz,
ERC Report 25
The consultation can be found in the list of ERO active consultations at
http://www.ero.dk/consultation
ERC Report 25 can be downloaded from
http://www.ero.dk/6121184A-3C02-4C3A-A695-250B25B2F711?frames=no&
Responses should be sent to Fatih Yurdal <yurdal(AT)ero.dk> and the
consultation closes on 16-Aug-2008.
European Radiocommunications Office
http://www.ero.dk/
73 Trevor M5AKA
__________________________________________________________
Sent from Yahoo! Mail.
A Smarter Email http://uk.docs.yahoo.com/nowyoucan.html
------------------------------
Message: 9
Date: Mon, 16 Jun 2008 18:41:35 +0000 (GMT)
From: Trevor <m5aka(AT)yahoo.co.uk>
Subject: [amsat-bb] Re: Frequency Co-ordination.
To: amsat bb <amsat-bb(AT)amsat.org>
Message-ID: <639559.7989.qm(AT)web27206.mail.ukl.yahoo.com>
Content-Type: text/plain; charset=utf-8
--- On Mon, 16/6/08, Mark Vandewettering <kf6kyi(AT)gmail.com> wrote:
> confused about some of this. If I recall correctly, 144.3
> to 144.5
> and 145.8 to 146.00 are allocated to the amateur satellite
> service.
Only 145.8 to 146.0 MHz is currently allocated by IARU to the Amateur
Satellite Service. In addition in IARU Region 1 the International Space
Station makes use of 145.2 MHz as an Uplink (144.490 MHz in Regions 2 and 3)
In IARU Region 1 - Europe and Africa - 144.4 to 144.5 MHz is heavily used for
terrestrial beacons.
So as you can see there is a shortage of frequency spectrum in 2 metres -
there is only 200 kHz available.
With that in mind I hope that national AMSAT societies in Region 1 will be
explaining the benefits of the IARU Region 1 Cavtat 08 2 metre satellite
expansion paper to their IARU recognised National Society since it's the
delegates from these societies that will decide the issue.
If nobody takes the time to explain to these Societies what Amateur Satellite
operation is about and why an expansion is needed then we should not be
suprised if delegates who know nothing at all about the Amateur Satellite
Service do not support it.
AMSAT groups in IARU Regions 2 and 3 may wish to give consideration to
providing similar papers for their IARU recognised national societies to
submit to IARU Region 2/3 conferences.
IARU Region 1 Cavtat 08 papers
http://www.iaru-r1.org/Cavtat%20qwopaskl.htm
73 Trevor M5AKA
__________________________________________________________
Sent from Yahoo! Mail.
A Smarter Email http://uk.docs.yahoo.com/nowyoucan.html
------------------------------
Message: 10
Date: Mon, 16 Jun 2008 11:42:39 -0700
From: Bill Ress <bill(AT)hsmicrowave.com>
Subject: [amsat-bb] Re: Spanish cubesat
To: rct(AT)uvigo.es
Cc: amsat-bb(AT)amsat.org
Message-ID: <4856B41F.4080808(AT)hsmicrowave.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I'm excited to see that you and your organization are soliciting input
from the AMSAT community for your SpanishSat. I'm sure that AMSAT
members will offer their input and suggestions. There is a lot of talent
on this reflector along with much archival history and experiences which
can be most helpful.
Besides offering my desire to have you include a transponder (any kind
you can fit in!), I would suggest you learn as much as you can about
solar cell/battery management. In this years CalPoly CubeSat conference,
it was noted that many CubeSat failures, once is orbit, are attributed
to power/battery management issues. If you haven't already looked over
the conference papers, I'd suggest a visit to:
http://cubesat.atl.calpoly.edu/pages/workshops/developers-workshop-2008.php
and they will give you some insights into what has been experienced in
recent CubeSats along with people you can contact for more information.
Best of luck on your project. We'll be watching your progress and I do
hope to see you on this reflector with any questions.
Regards...Bill - N6GHz
rct(AT)uvigo.es wrote:
> Dear colleagues,
>
> The Telecommunication School at Vigo University, Spain, is developing
> a cubesat that will be launched by ESA. It will transmit in amateur
> bands, and the University radioclub (EA1RCT) is collaborating in the
> project. The design is not yet closed and we can send proposals to the
> development team. The radioclub is willing to hear ideas from the
> amateur radio comunity: we would like to have a short list ready by
> next Thursday, June 26, so any proposal we receive before then will be
> carefully read.
>
> The satellite will be small and lightweight as you know, and it will
> run on a short electrical budget. Moreover, the time schedule is very
> tight. One of the main objectives is to test SDR systems in space (not
> necessarily in amateur bands).
>
> Neither the bands, power o full-duplex capability have been
> established. It could eventually end up with just a telemetry beacon.
> We would like to hear your opinions about what the amateur radio
> community would prefer to carry on board, in these three scenarios:
>
> ? full-duplex communication capability (linear transponder, fm rep, etc)
> ? half-duplex systems (digipeater?)
> ? beacon modes (afsk, psk, cw)
>
>
> Best regards,
> EA1RCT RadioClub Telecomunicaciones Vigo
> http://lostrego.uvigo.es
>
>
>
> _______________________________________________
> Sent via AMSAT-BB(AT)amsat.org. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
>
>
------------------------------
Message: 11
Date: Mon, 16 Jun 2008 20:45:14 +0200
From: "Simon Brown \(HB9DRV\)" <simon(AT)hb9drv.ch>
Subject: [amsat-bb] Re: Spanish cubesat
To: "AMSAT" <amsat-bb(AT)amsat.org>
Message-ID: <4DB6455A13E74D3FADCEC68A40018E6F(AT)doubletrouble>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
My vote is for SSTV, preferably Scottie 2 format.
Simon Brown, HB9DRV
--------------------------------------------------
From: "Mark Vandewettering" <kf6kyi(AT)gmail.com>
>
> I'm personally interested in imaging, so I am intrigued by satellites
> like CUTE (which carries essentially a cell phone camera), COMPASS-1
> (which carries an as-yet untried camera down link) and SEEDS (which
> has an SSTV downlink).
>
------------------------------
_______________________________________________
Sent via amsat-bb(AT)amsat.org. 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 3, Issue 302
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