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CX2SA > SATDIG 30.04.13 21:04l 182 Lines 6252 Bytes #999 (0) @ WW
BID : AMSATBB8139
Read: GUEST
Subj: AMSAT-BB-digest V8 139
Path: IZ3LSV<F1OYP<F4DUR<CX2SA
Sent: 130430/1903Z @:CX2SA.SAL.URY.SA #:5722 [Salto] FBB7.00e $:AMSATBB8139
From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. Re: Path to HEO (M5AKA)
2. SatPC32 more info on problems and THANKS! (James Luhn)
3. Re: Path to HEO (Joe)
4. OA4 qrv satellite (Lizeth Norman)
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Message: 1
Date: Tue, 30 Apr 2013 15:54:24 +0100 (BST)
From: M5AKA <m5aka@xxxxx.xx.xx>
To: "'Patrick Strasser'" <patrick@xxxxxxxx.xxxx.xx>,
Amsat-bb@xxxxx.xxxxxxxxx Pugh <quadpugh@xxxxxxxxx.xxx>
Subject: [amsat-bb] Re: Path to HEO
Message-ID:
<1367333664.29339.YahooMailClassic@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
--- On Tue, 30/4/13, Nick Pugh <quadpugh@xxxxxxxxx.xxx> wrote:
> From the comments HEO is challenging but doable. So let's
> get started.
But Nick it is already started, several groups have already developed
CubeSat ion motors.
The fact that, as far as I'm aware, none of the groups that have developed
Ion Powered CubeSats are anywhere near launching yet shows us where the big
road-block is - the lack of cheap launches.
As I see it there are three key things that need to be developed and proved
in Space:
1. Large deployable CubeSat solar panels (although NEE-01 Pegasus just
launched has this, be interesting to see how it performs)
2. Ion motor
3. Deployable CubeSat antenna's - if you're putting a CubeSat above 7200 km
you could do with something more than a dipole, but what would you have ?
and would there be issues with having both a large deployable solar array
and deployable antennas.
> bring up this idea at Dayton. I noticed that none of the board
> of directors of AMSAT have commented on this thread. If we want
> to go to HEO we will have to speak a little louder
I sincerely hope BOD continue to fulfill with their existing commitments
rather than overstretching limited resources. But there's nothing stopping
individuals experimenting with and developing the necessary technologies
Deployable panels/Motor/Antennas themselves. After-all the early OSCARs were
created by very small groups of people who just went out and did it.
73 Trevor M5AKA
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Message: 2
Date: Tue, 30 Apr 2013 11:00:30 -0500
From: James Luhn <luhn@xx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] SatPC32 more info on problems and THANKS!
Message-ID: <517FEA9E.60902@xx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
I sincerely appreciate all of the feedback on my SatPC32 issues. I
figured out the Ghost tracking' issue or at least corrected the
problem. Somehow my location became corrupted. I noticed that the
little white dot (QTH) was missing from its normal location. By some
means my latitude/longitude data changed. I have put in the correct
numbers now and I expect the ghost will leave the area.
As was mentioned, the issue in which all control stops is probably an
interface problem. It may even be the notebooks having older firmware.
I will continue to tinker in that area. The Panasonic Toughbook is a
nice computer for ham work as it has both USB ports and a true serial
port. The fact that the LVB Tracker works flawlessly with my Macbook
through the same USB cable, more than likely this problem is Panasonic
Toughbook related. I did try both USB ports on the Toughbook and had
the same results. I will keep everyone informed as to how I resolve my
problem.
Thank you again for all of the responses. I feel sure I am on the
correct path to making all of the components play nicely together. Of
course progress is slow when there is a satellite above the horizon :)
73,
-james
W5AOO
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Message: 3
Date: Tue, 30 Apr 2013 11:04:37 -0500
From: Joe <nss@xxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Path to HEO
Message-ID: <517FEB95.7020103@xxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On the Outside? :-)
just like 90% of the earlier birds they are rolled or folded up until
after deployment. IIRC: one of the first actually did use a rolled up
tame measure for the elements.
Joe WB9SBD
Sig
The Original Rolling Ball Clock
Idle Tyme
Idle-Tyme.com
http://www.idle-tyme.com
On 4/30/2013 9:51 AM, Andrew Glasbrenner wrote:
> Where do the gain antennas go on a 10x10x30cm HEO?
>
> 73, Drew KO4MA
>
> Sent from my iPhone
>
> On Apr 30, 2013, at 9:01 AM, N0JY <n0jy@xxxxxxx.xxx> wrote:
>
>> I wonder about the amount of time spent in the Van Allen belts on the way
up there. We're concerned about radiation at a 650 km orbit, it might take
some heavy duty ($$) radiation tolerant components to survive a few years
trip through the radiation belts as well as the final high orbit?
>>
>> Jerry
>> N0JY
>>
>>
>>
>> _______________________________________________
>> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
>> Not an AMSAT-NA member? Join now to support the amateur satellite program!
>> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
> _______________________________________________
> Sent via AMSAT-BB@xxxxx.xxx. Opinions expressed are those of the author.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
>
------------------------------
Message: 4
Date: Tue, 30 Apr 2013 14:32:53 -0400
From: Lizeth Norman <normanlizeth@xxxxx.xxx>
To: "<,amsat-bb@xxxxx.xxxxxxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] OA4 qrv satellite
Message-ID:
<CAJUhCTOqukRrcPocysnx6Hm+OC5SA9SZSKNVUeF20bHDxUp96g@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi all,
Will be in the country of Peru, active on FO-29 and AO-7 if at all
possible. Other sats by request.
Not sure when the first pass will be. Grid for Lima is FH17.
Will be going north in two weeks. Not sure which grid squares I'll be
activating. Will keep everyone appraised.
73 de Norm n3ykf
------------------------------
_______________________________________________
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 8, Issue 139
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