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CX2SA > SATDIG 18.10.12 17:05l 741 Lines 25998 Bytes #999 (0) @ WW
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Today's Topics:
1. AMSAT-LU Stratospheric Balloon Video (Amsat Argentina)
2. Re: OH2AUE P3E transponder demo video (Gordon JC Pearce)
3. Re: AMSAT-LU Stratospheric Balloon Video (Fabiano Moser)
4. Amsat Journal? (ryan woods)
5. K2BSA/5 on satellites for JOTA (Tom Schuessler)
6. Re: OH2AUE P3E transponder demo video (Gus 8P6SM)
7. Re: Amsat Journal? (i8cvs)
8. Re: OH2AUE P3E transponder demo video (i8cvs)
9. Re: OH2AUE P3E transponder demo video (Robert Bruninga)
10. Re: OH2AUE P3E transponder demo video (Gordon JC Pearce)
11. shoe box sats (Nick Pugh)
12. FITSAT-1 5840.0 MHz downlink received (Trevor .)
13. Re: hello! (JOEL KANDEL)
14. LEO to HEO (Joshua)
15. Re: OH2AUE P3E transponder demo video (Gus 8P6SM)
16. Re: shoe box sats (Gus 8P6SM)
----------------------------------------------------------------------
Message: 1
Date: Wed, 17 Oct 2012 16:37:19 -0300
From: Amsat Argentina <amsatlu@xxxxx.xxx>
To: amsat-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] AMSAT-LU Stratospheric Balloon Video
Message-ID:
<CAAVgVk9oVc7j6ac6QqCf-V0m43nANTdYR=0wpryzCrOwQ=TmSg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
On May-19 authorized high altitude Balloon was launched from La Pampa,
Argentina, reaching 34.000 m, carring UHF to VHF (4w) subtone
activated repeater, APRS lu7aa-11, Robot-36 live SSTV, CW, 40/20m CW
tlm beacon and 2 video cameras. (Total weight 970 grams) Details (in
spanish) on http://www.amsat.org.ar/globo19.htm
During the 4 hours flight, over 200 stations pileup doing bilateral
QSOs thru repeater participated using mostly dual band handies, a
contest was in place, winner from Uruguay won a dual band handy,
participants got certificates http://www.amsat.org.ar/cx2tq.jpg
Payload was recovered from a mud on Oct-6 by 4x4 Adventure Group in
isolated and flooded area, recovered payload photos & analysis on
http://www.amsat.org.ar/rescate.jpg
Video and sound taken by two on board TV Cameras spanned 6 hours, they
had been compiled and available to view on http://youtu.be/ib9_zlgN8d0
Experiment is part of Amsat-LU development and field tests as well as
users practice of LUSEX satellite http://www.lusex.org.ar
Planned to be repeated during Nov/Dec timeframe pending flight
authorization by Argentina Federal Aviation Authorities.
73, LU7AA, AMSAT Argentina
info at amsat.org.ar
http://www.amsat.org.ar
http://www.facebook.com/Amsat.LU
------------------------------
Message: 2
Date: Wed, 17 Oct 2012 22:38:36 +0100
From: Gordon JC Pearce <gordonjcp@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: OH2AUE P3E transponder demo video
Message-ID: <507F255C.9030008@xxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 16/10/12 03:18, Ben Jackson wrote:
>> It may be easy to reliably work a future generation of satellites with
>> an HT and a rubber duckie. But that won't be challenging. And we (the
>> operators) won't be learning anything new.
>
> But instead folks are promoting an anachronism. They're discussing
> learning something new at the same time saying we should be using a
> technology that has been in use since the 1960s.
>
> So then instead of focusing on linear transponders how about deploying
> HSMM nodes into space, TDMA, or DMR technology? (No idea how feasible
> any of of this is)
DMR as it stands isn't viable because it relies on really tight timing
in the slots - the "book figure" is 75 miles but people have pushed it
to over 100. The trouble here is that the speed of light just isn't
that fast ;-)
In any case, the challenge has changed. I don't see any real challenge
in the "hard sats", because the "hard sat" brigade all seem to use
massive aerial arrays, with computer-controlled steering and tuning. I
don't see what's "hard" about it - it's just throwing technology and no
real skill at the problem. Once you've figured out the mysteries of the
crappy proprietary software that people use to steer the aerials and
tune the rig, it's point-and-shoot.
The FM sats can be worked with something as simple as a dual-band handie
and a homebrew crossband pair of Yagis - and a great deal of operator skill.
No, the challenge today is this - are you ready? The challenge is:
Get something flying, for less than the GDP of a small nation.
There, I've said it. It's down to money. You know what else I'm going
to say?
There is almost certainly never going to be another amateur HEO satellite.
There, I've said *that*, too. Want to know why? Because we're a
tightfisted bunch and no-one is going to fly us for very nearly free.
The HEO crowd have some amazing technology, but it's going to cost a
fortune - a very large fortune - to fly these Death Star-sized
satellites *at all*, never mind into HEO.
The future is small satellites, where we will have to cram as much radio
into a tiny cubesat payload as we can. Even then it's going to be
expensive, so we're going to need to look at countries that are
developing their space programme to get launches - and that's going to
be India, Pakistan, Iran if they get their shit together, maybe Israel
if we can get them interested in anything other than "observation"
satellites and probably one or two others. Maybe some wealthyish
African countries will get in on it, like the DRC or Kenya.
We're going to have to try coming up with clever satellites, rather than
flying a bent-pipe box the size of a fridge. No-one is going to want to
lift that, without us paying full price.
--
Gordon JC Pearce MM0YEQ
------------------------------
Message: 3
Date: Thu, 18 Oct 2012 00:01:14 +0100
From: Fabiano Moser <fabianomoser@xxxxx.xxx>
To: Amsat Argentina <amsatlu@xxxxx.xxx>
Cc: amsat-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: AMSAT-LU Stratospheric Balloon Video
Message-ID: <002CA603-FA37-4C6C-ADFA-79E7209E80E1@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Congratulations!
Best regards.
Fabiano Moser
Enviado do meu iPhone4
On 17/10/2012, at 20:37, Amsat Argentina <amsatlu@xxxxx.xxx> wrote:
> On May-19 authorized high altitude Balloon was launched from La Pampa,
> Argentina, reaching 34.000 m, carring UHF to VHF (4w) subtone
> activated repeater, APRS lu7aa-11, Robot-36 live SSTV, CW, 40/20m CW
> tlm beacon and 2 video cameras. (Total weight 970 grams) Details (in
> spanish) on http://www.amsat.org.ar/globo19.htm
>
> During the 4 hours flight, over 200 stations pileup doing bilateral
> QSOs thru repeater participated using mostly dual band handies, a
> contest was in place, winner from Uruguay won a dual band handy,
> participants got certificates http://www.amsat.org.ar/cx2tq.jpg
>
> Payload was recovered from a mud on Oct-6 by 4x4 Adventure Group in
> isolated and flooded area, recovered payload photos & analysis on
> http://www.amsat.org.ar/rescate.jpg
>
> Video and sound taken by two on board TV Cameras spanned 6 hours, they
> had been compiled and available to view on http://youtu.be/ib9_zlgN8d0
>
> Experiment is part of Amsat-LU development and field tests as well as
> users practice of LUSEX satellite http://www.lusex.org.ar
>
> Planned to be repeated during Nov/Dec timeframe pending flight
> authorization by Argentina Federal Aviation Authorities.
>
> 73, LU7AA, AMSAT Argentina
> info at amsat.org.ar
> http://www.amsat.org.ar
> http://www.facebook.com/Amsat.LU
> _______________________________________________
> 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: 4
Date: Wed, 17 Oct 2012 18:33:21 -0700 (PDT)
From: ryan woods <kd8atf@xxxxx.xxx>
To: "Amsat-bb@xxxxx.xxxx <Amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Amsat Journal?
Message-ID:
<1350524001.61301.androidMobile@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
What is going on with the journal I have not received one in a long
time..... I always enjoyed reading it..... I know im still okay on my dues
are up to date because I joined this year after moving out of my parents
house.
Sent from Yahoo! Mail on Android
------------------------------
Message: 5
Date: Wed, 17 Oct 2012 20:52:14 -0500
From: "Tom Schuessler" <tjschuessler@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] K2BSA/5 on satellites for JOTA
Message-ID: <006801cdacd3$3285f850$9791e8f0$@xxx>
Content-Type: text/plain; charset=US-ASCII
The National Scouting Museum in Irving Texas will again be making Satellite
contacts as we can on Saturday, October 20 the for Scouting's Jamboree on
the Air as K2BSA/5 Passes however will be limited if AO-27 is still out of
commission. Will try FO-29 and AO-7 if in B mode. SO-50 will be too late
in the day for us. Hoping that by next year we have FOX up as well as
FunCube and UKCube for linear transponder options.
No matter what, look for Scout stations and give them a call.
Tom Schuessler
2713 Lake Gardens Drive
Irving, Texas 75060
972-986-7456
214-403-1464 (Cell)
n5hyp@xxxx.xxx
------------------------------
Message: 6
Date: Wed, 17 Oct 2012 22:28:05 -0400
From: Gus 8P6SM <8p6sm@xxxx.xxx>
To: Gordon JC Pearce <gordonjcp@xxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: OH2AUE P3E transponder demo video
Message-ID: <507F6935.7020309@xxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
On 10/17/2012 05:38 PM, Gordon JC Pearce wrote:
> We're going to have to try coming up with clever satellites, rather than
> flying a bent-pipe box the size of a fridge. No-one is going to want to
> lift that, without us paying full price.
I may not be 100% on the 'bent pipe' definition, but if it means hams
'talk' on the UP and other hams 'listens' on the DOWN, then that's what
we need. Whether it be the size of a fridge of a matchbox, if ham radio
operators can't use it to communicate, then it's pretty pointless. It
don't matter how much telemetry it sends, how many LEDs it blinks, how
clever the beacons, or what purty pictures it downlinks. If hams can't
use it to QSO, then why bother?
--
73, de Gus 8P6SM,
Evil DXing ragchewer!
------------------------------
Message: 7
Date: Thu, 18 Oct 2012 04:38:58 +0200
From: "i8cvs" <domenico.i8cvs@xxx.xx>
To: "ryan woods" <kd8atf@xxxxx.xxx>, "Amsat - BBs"
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Amsat Journal?
Message-ID: <000001cdacda$05a72320$0401a8c0@xxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Ryan, KD8ATF
The new editor of the AMSAT Journal is Doug Loughmiller, W5BL
and before in 2011 was Ed Long WA4SWJ
In march 2012 I have sent to W5BL an article to be published in the next
issue of the Journal but after many reminders I have not received from
him any proof for my review once the article get laid out.
Try to get informations about your Journal from the actual editor Doug
Loughmiller at the following email address.
w5bl@xxxxxxxxx.xxx
73" de
i8CVS Domenico
----- Original Message -----
From: "ryan woods" <kd8atf@xxxxx.xxx>
To: <Amsat-bb@xxxxx.xxx>
Sent: Thursday, October 18, 2012 3:33 AM
Subject: [amsat-bb] Amsat Journal?
> What is going on with the journal I have not received one in a long
> time..... I always enjoyed reading it..... I know im still okay on my dues
> are up to date because I joined this year after moving out of my parents
> house.
>
>
> Sent from Yahoo! Mail on Android
>
> _______________________________________________
> 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: 8
Date: Thu, 18 Oct 2012 05:15:46 +0200
From: "i8cvs" <domenico.i8cvs@xxx.xx>
To: "Gus 8P6SM" <8p6sm@xxxx.xxx>, "Gordon JC Pearce"
<gordonjcp@xxxx.xxx>
Cc: Amsat - BBs <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: OH2AUE P3E transponder demo video
Message-ID: <000001cdacdf$3cbfce20$0401a8c0@xxxxxx>
Content-Type: text/plain; charset="iso-8859-1"
Hi Gus, 8P6SM
I agree with you !
Unfortunately there is now a huge trend to build more and more of these
shoe boxes (CubSat) to fly around earth.
I would not call them satellites, because just a box with some solar panels
does not make a real satellite.
As we see, most of them are almost useless, in particular for the ham
satellite community to communicate and they are a waste of money
and resources.
It's more like a prestige object for many Universities and their Professors.
What kind of science is it, to buy a ham radio hand held and modify it
for use on a shoe box ?
The wheels are re-invented again and again...
For us AMSAT'ers.. this is something we did almost 30 years ago!!!! This
is history and nothing like science anymore...
Instead it would be indeed better to build a HEO with advanced capabilities,
but no one seems to be interested in it...
At least AMSAT-DL is working hard to get P3-E finished and launched soon,
but the mass flood of these CubeSats and other Nanosats makes it indeed
more difficult.
73" de
i8CVS Domenico
----- Original Message -----
From: "Gus 8P6SM" <8p6sm@xxxx.xxx>
To: "Gordon JC Pearce" <gordonjcp@xxxx.xxx>
Cc: <amsat-bb@xxxxx.xxx>
Sent: Thursday, October 18, 2012 4:28 AM
Subject: [amsat-bb] Re: OH2AUE P3E transponder demo video
> On 10/17/2012 05:38 PM, Gordon JC Pearce wrote:
> > We're going to have to try coming up with clever satellites, rather than
> > flying a bent-pipe box the size of a fridge. No-one is going to want to
> > lift that, without us paying full price.
>
> I may not be 100% on the 'bent pipe' definition, but if it means hams
> 'talk' on the UP and other hams 'listens' on the DOWN, then that's what
> we need. Whether it be the size of a fridge of a matchbox, if ham radio
> operators can't use it to communicate, then it's pretty pointless. It
> don't matter how much telemetry it sends, how many LEDs it blinks, how
> clever the beacons, or what purty pictures it downlinks. If hams can't
> use it to QSO, then why bother?
>
> --
> 73, de Gus 8P6SM,
> Evil DXing ragchewer!
>
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
------------------------------
Message: 9
Date: Wed, 17 Oct 2012 23:43:41 -0400
From: Robert Bruninga <bruninga@xxxx.xxx>
To: Amsat - BBs <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: OH2AUE P3E transponder demo video
Message-ID: <7a2a9968d91f6a79fc7ded2bf426f468@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Wow, a narrow self centric view of the world:
> a huge trend to build more and more of these shoe boxes..
> ... most of them are almost useless...
> What kind of science is it,...
> The wheels are re-invented again and again...
> For us AMSAT'ers.. this is something we did almost 30 years ago!!!!
> This is history and nothing like science anymore...
Please do not speak for me. Obviously the writer above has no clue what
education is all about.
Guess what! Every single year, the teacher has to start EXACTLY back at
square ZERO.
That is what EDUCATION is all about. Teaching each new year of students
the same thing over and over and over. Its not fun... but it is
challenging...
Now I do not defend all repeats of stupid ideas and other mistakes, but
education is a repeating process every year by definition.
Now, if you want a different satellite built , THEN BUILD IT. It does no
credit to lambast at least those that are DOING SOMETHING... even if it is
not what you want, then either build what you want, and launch it, or get
out of the way....
I have not been following this thread at all. So if my comments are
inappropriate, I apologize. But some people have no clue what it takes
to educate a completely new class starting over every year.
Bob, WB4APR
------------------------------
Message: 10
Date: Thu, 18 Oct 2012 07:47:20 +0100
From: Gordon JC Pearce <gordonjcp@xxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: OH2AUE P3E transponder demo video
Message-ID: <507FA5F8.1060205@xxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 18/10/12 03:28, Gus 8P6SM wrote:
> On 10/17/2012 05:38 PM, Gordon JC Pearce wrote:
>> We're going to have to try coming up with clever satellites, rather than
>> flying a bent-pipe box the size of a fridge. No-one is going to want to
>> lift that, without us paying full price.
>
> I may not be 100% on the 'bent pipe' definition, but if it means hams
> 'talk' on the UP and other hams 'listens' on the DOWN, then that's what
What I am referring to is linear transponders. They're heavy and
consume a lot of power. We need to either devise a new way of doing
that, that doesn't involve heavy inefficient linear amplifiers, or stick
to something like FM or GMSK where a little lightweight PA that doesn't
dissipate most of the input power as heat will do the job.
> we need. Whether it be the size of a fridge of a matchbox, if ham radio
> operators can't use it to communicate, then it's pretty pointless. It
If it's big it won't fly, unless you pay for the whole flight. Have you
noticed how airlines have stopped carrying children for free, too?
> don't matter how much telemetry it sends, how many LEDs it blinks, how
> clever the beacons, or what purty pictures it downlinks. If hams can't
> use it to QSO, then why bother?
It depends what you're trying to achieve. I'll respond to Domenico's
comments here, too.
Most satellites are not built by radio amateurs. They're not there so
you can talk to your friends. They are built so the engineering
students that will build the satellites and spacecraft of the future.
Like it or not, amateur radio is a secondary service on 70cm. We don't
own that chunk of band. If you want to work a band free from "beep
sats", stick to 2m and good luck with your build.
--
Gordon JC Pearce MM0YEQ
------------------------------
Message: 11
Date: Thu, 18 Oct 2012 05:55:21 -0500
From: "Nick Pugh" <quadpugh@xxxxxxxxx.xxx>
To: "'Amsat - BBs'" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] shoe box sats
Message-ID: <0d1701cdad1f$122a83e0$367f8ba0$@xxx>
Content-Type: text/plain; charset="US-ASCII"
>Hi Gus, 8P6SM
>I agree with you !
>Unfortunately there is now a huge trend to build more and more of these
shoe boxes (CubSat) to fly around earth.
>I would not call them satellites,
As a member of a cubesat team let me put in my $.02
1. At the University of Louisiana help the transition of students to
engineers.
2. We fulfill the mandate of the FCC by training the next generation
of engineers
3. We license about 10 students every year and expose ham radio to 20
more students
4. When these students go through the program they can build something
and learn by doing
In closing I believe the amateur community is well served by the shoe box
designers. If we want amateur payloads we should do
1. Have off the shelf radios in their form factor that are very cheap
2. Be ready to mentors most school lack radio resources
3. Team up with schools that are developing propulsion systems ( our
ride to HEO)
Thanks
nick ars k5qxj EM30xa 30.1 n 90.1 w
cell 337 2582527
office 337 593 8700
------------------------------
Message: 12
Date: Thu, 18 Oct 2012 14:41:56 +0100 (BST)
From: "Trevor ." <m5aka@xxxxx.xx.xx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] FITSAT-1 5840.0 MHz downlink received
Message-ID:
<1350567716.15516.YahooMailClassic@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
The 5840.0 MHz downlink on the FITSAT-1 CubeSat has been received in Japan.
See video at http://www.uk.amsat.org/?p=11100
73 Trevor M5AKA
AMSAT-UK http://www.amsat-uk.org/
----
------------------------------
Message: 13
Date: Thu, 18 Oct 2012 07:19:11 -0700 (PDT)
From: JOEL KANDEL <kandelj@xxxxxxxxx.xxx>
To: heatherlinda@xxxxxxx.xxxx heather.harper@xxxxxxxxxxxxxxxxxx.xxxx
amsat-bb@xxxxx.xxxx judy@xxxxxxxxxxxxx.xxxx van1121loen@xxxxx.xxxx
chislee-pr@xxxx.xxxx mfa@xxx.xxxx lvunkannon@xxxxxxx.xxxx
jtheimer@xxxx.xxx
Subject: [amsat-bb] Re: hello!
Message-ID:
<1350569951.6553.BPMail_high_noncarrier@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
.. http://jpfly.com/nbcnewsat12.php?igmailID=90g7
------------------------------
Message: 14
Date: Thu, 18 Oct 2012 08:44:17 -0400
From: Joshua <jarvideo@xxxxx.xxx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] LEO to HEO
Message-ID: <331DAB12-E845-4C97-B5FC-8DE578B640F0@xxxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Morning folks,
I'm a relatively new ham and started following amsat only a few months so
forgive something of a novice question.
The biggest trouble I see the community hitching a ride to a high orbit
although low orbits seem to be easy to get. So my question is this, who says
we can't launch a sat in LEO and design it to move itself up to a higher
orbit? I mean if NASA can build probes capable of reaching mars, it stands
to reason we can build a bird to move only a few thousand miles.
Thanks,
Joshua Abraham, KJ4VYR
------------------------------
Message: 15
Date: Thu, 18 Oct 2012 10:55:01 -0400
From: Gus 8P6SM <8p6sm@xxxx.xxx>
To: Gordon JC Pearce <gordonjcp@xxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: OH2AUE P3E transponder demo video
Message-ID: <50801845.4030703@xxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
On 10/18/2012 02:47 AM, Gordon JC Pearce wrote:
> On 18/10/12 03:28, Gus 8P6SM wrote:
>> On 10/17/2012 05:38 PM, Gordon JC Pearce wrote:
>>> We're going to have to try coming up with clever satellites, rather than
>>> flying a bent-pipe box the size of a fridge. No-one is going to want to
>>> lift that, without us paying full price.
>>
>> I may not be 100% on the 'bent pipe' definition, but if it means hams
>> 'talk' on the UP and other hams 'listens' on the DOWN, then that's what
>
> What I am referring to is linear transponders. They're heavy and
> consume a lot of power. We need to either devise a new way of doing
> that, that doesn't involve heavy inefficient linear amplifiers, or stick
> to something like FM or GMSK where a little lightweight PA that doesn't
> dissipate most of the input power as heat will do the job.
A full-duty-cycle FM transponder that eats up the entire bandwidth of
the satellite to allow a single ham to communicate strikes me as far
less sensible than an efficient linear transponder that allows multiple
simultaneous contacts and does not run the PA at full duty cycle.
But never the less, I don't really care what the operating mode for
communication is, so long as there actually *IS* an operating mode for
communication. Satellites that DON'T allow hams to communicate are not
of any interest to me, and (IMHO) are not relevant in any discussion of
AMATEUR satellites.
>> we need. Whether it be the size of a fridge of a matchbox, if ham radio
>> operators can't use it to communicate, then it's pretty pointless. It
>
> If it's big it won't fly, unless you pay for the whole flight. Have you
> noticed how airlines have stopped carrying children for free, too?
And most people have long ago stopped whining about it and now simply
pay for their children to fly. So let's pay for a flight and stop
whinging about how we can't get a free one.
>> don't matter how much telemetry it sends, how many LEDs it blinks, how
>> clever the beacons, or what purty pictures it downlinks. If hams can't
>> use it to QSO, then why bother?
>
> It depends what you're trying to achieve. I'll respond to Domenico's
> comments here, too.
>
> Most satellites are not built by radio amateurs. They're not there so
> you can talk to your friends. They are built so the engineering
> students that will build the satellites and spacecraft of the future.
Most satellites have nothing whatsoever to do with the engineering
students of the future. But we don't get all goo-goo eyed over the
launch of some military spy-sat because it has nothing to do with
amateur radio. And neither do most of the cubesats.
> Like it or not, amateur radio is a secondary service on 70cm. We don't
> own that chunk of band. If you want to work a band free from "beep
> sats", stick to 2m and good luck with your build.
Uh-oh! As a recent posting leads us to understand, UMSATS TSat-1 uses
437 *and* 145 MHz amateur radio bands. Is the 2 meter band a secondary
service as well?
--
73, de Gus 8P6SM
The Easternmost Isle
------------------------------
Message: 16
Date: Thu, 18 Oct 2012 11:01:17 -0400
From: Gus 8P6SM <8p6sm@xxxx.xxx>
To: Nick Pugh <quadpugh@xxxxxxxxx.xxx>
Cc: 'Amsat - BBs' <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: shoe box sats
Message-ID: <508019BD.6060506@xxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
On 10/18/2012 06:55 AM, Nick Pugh wrote:
> I believe the amateur community is well served by the shoe box
> designers. If we want amateur payloads we should do
>
> 1. Have off the shelf radios in their form factor that are very cheap
I agree. I'd even say very cheap as in completely free.
> 2. Be ready to mentors most school lack radio resources
I agree again. Sign me up.
> 3. Team up with schools that are developing propulsion systems ( our
> ride to HEO)
Three times is a charm!
--
73, de Gus 8P6SM
The Easternmost Isle
------------------------------
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End of AMSAT-BB Digest, Vol 7, Issue 346
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