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CX2SA > SATDIG 03.04.12 21:08l 256 Lines 7652 Bytes #999 (0) @ WW
BID : AMSATBB7107
Read: GUEST
Subj: AMSAT-BB-digest V7 107
Path: IZ3LSV<IW0QNL<VE2PKT<F1BBI<CX2SA
Sent: 120403/1903Z @:CX2SA.SAL.URY.SA #:57163 [Salto] FBB7.00e $:AMSATBB7107
From: CX2SA@CX2SA.SAL.URY.SA
To : SATDIG@WW
Today's Topics:
1. W1AW on AO27 April 10 (Mark Spencer)
2. First-MOVE CubeSat (Trevor .)
3. Re: Spin rate and orientation for SO-50? (Tom Schuessler)
4. Pass predictions with Amazon Kindle (Rsoifer@xxx.xxxx
5. Typo (Rsoifer@xxx.xxxx
6. April 2012 Issue of World Radio (Clayton Coleman W5PFG)
7. Dallas -FW weather.. (Ted)
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Message: 1
Date: Mon, 2 Apr 2012 15:18:30 -0400
From: "Mark Spencer" <wa8sme@xxxxxxx.xxx>
To: "AMSAT BB" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] W1AW on AO27 April 10
Message-ID: <004101cd1105$642ea6a0$2c8bf3e0$@xxx>
Content-Type: text/plain; charset="us-ascii"
I will try and put W1AW on AO27 April 10 for the 1830Z pass. Fastest QSL is
via my call address.
Mark
Mark Spencer, WA8SME
Education and Technology Program Director
ARRL, the national association for Amateur RadioTM
43 Pinelock Dr.
Gales Ferry, CT 06335
860-381-5335
860-460-1139 (cell)
mspencer@xxxx.xxx
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Message: 2
Date: Mon, 2 Apr 2012 22:18:03 +0100 (BST)
From: "Trevor ." <m5aka@xxxxx.xx.xx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] First-MOVE CubeSat
Message-ID:
<1333401483.98366.YahooMailClassic@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
Students at the Technical University of M?nchen have released a couple of
short videos on their CubeSat First-MOVE, see
http://www.uk.amsat.org/6199
73 Trevor M5AKA
AMSAT-UK News on Twitter: http://twitter.com/AMSAT_UK
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Message: 3
Date: Mon, 02 Apr 2012 21:01:55 -0500
From: "Tom Schuessler" <tjschuessler@xxxxxxx.xxx>
To: "'Andrew Glasbrenner'" <glasbrenner@xxxxxxxxxx.xxx>
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Spin rate and orientation for SO-50?
Message-ID: <009101cd113d$bed66010$3c832030$@xxx>
Content-Type: text/plain; charset=US-ASCII
Drew,
Thanks for the reply to my post.
It does seem to me that this bird (SO-50), does have a much faster rate of
change than the other satellites I have worked. Thus judging by the amount
of twisting I have to do during one of it's passes as compared to what I do
or did for AO-51, SO-67, HO-68 or AO-27. I am constantly flipping the Arrow
around whilst following it. I do agree with the concept that at times and
on certain elevation passes, this orientation change of the satellite causes
some shielding of the antenna as in the course of a minute, I can go from
very legible copy to hearing nothing at all and then a minute or so later,
picking it up again.
Since there is always someone out in the world who likes to analyze
seemingly trivial details, that maybe someone who has much more time than I
might be interested in the challenge of figuring this out.
Let's keep raising the funds for FOX-1 and other true communications payload
full on Amateur Radio satellites in order to provide more fun and
educational opportunities to the larger community around us. Satellite
contacts at events like hamfests, schools and museums really get folks
excited and interested in STEM as well as Amateur Radio.
73 de Tom, N5HYP
-----Original Message-----
From: Andrew Glasbrenner [mailto:glasbrenner@xxxxxxxxxx.xxxx
Sent: Sunday, April 01, 2012 2:09 PM
To: tjschuessler@xxxxxxx.xxx
Cc: amsat-bb@xxxxx.xxx
Subject: Re: [amsat-bb] Spin rate and orientation for SO-50?
AFAIK there is no telemetry available to decode spin rate from, but my hunch
from experience with AO-51 is that the spin is very, very slow.
What we see is a combination of blocking of the downlink antenna by the body
of the spacecraft, and with portable ops especially, mismatched polarity on
the downlink. The best option is to be able to twist the antenna to peak the
signal many times through the pass.
With SO-50's particular implementation of PL, it's also VERY useful to have
full duplex to both peak your signal, and know if you are getting in or
QRMing anyone.
SO-50 is sort of like the old Russian RS birds. We don't know a lot about
the bits and pieces, but are sure glad it's there and working!
73, Drew KO4MA
On 4/1/2012 2:50 PM, tjschuessler@xxxxxxx.xxx wrote:
> Hello AMSATers,
>
> SO-50 with it's lower ERP and apparent spin make it a more difficult bird
for the handheld guys to keep up with but not at all impossible. I have
been curious though if anyone has information as to what the
spacecraft/antenna orientation is and what is the spin rate if any and how
that affects workability? I find myself explaining the quirksof this bird
to folks and would like a little more intelligent set of answers. Any
thoughts would be appreciated.
>
> 73 de Tom, N5HYP, today in DM93
> _______________________________________________
> 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, 3 Apr 2012 12:00:08 -0400 (EDT)
From: Rsoifer@xxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Pass predictions with Amazon Kindle
Message-ID: <ab56e.35f2595f.3cac7888@xxx.xxx>
Content-Type: text/plain; charset="US-ASCII"
I recently acquired a Kindle Keyboard 3G, which turns out to be quite a
versatile device in addition to its main purpose of reading books. It has an
"experimental" Web browser which, while somewhat limited, proviides at least
two ways of getting pass predictions over the Intermet.
AMSAT's home page, www.amsat.org, is incompatible with the Kindle browser,
but the Kindle will go directly to the pass prediction page,
www.amsat..org/amsat-new/tools/predict. In the Browser menu, select Enter
URL and type
that address in. From that point on, the AMSAT pass predictor will work
normally, as it does on a "real" PC.
If you need a satellite that AMSAT's pass predictor doesn't cover,
www.heavens-above.com will work on the Kindle too.
73 Ray W2RS
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Message: 5
Date: Tue, 3 Apr 2012 12:34:14 -0400 (EDT)
From: Rsoifer@xxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Typo
Message-ID: <acc85.140f228d.3cac8086@xxx.xxx>
Content-Type: text/plain; charset="US-ASCII"
Sorry, I meant to type www.amsat.org/amsat-new/tools/predict
73 Ray W2RS
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Message: 6
Date: Tue, 3 Apr 2012 11:52:08 -0500
From: Clayton Coleman W5PFG <kayakfishtx@xxxxx.xxx>
To: AMSAT <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] April 2012 Issue of World Radio
Message-ID:
<CAPovOwd8GGGM5BBXuyRRdZ46BwT+eecrVVs7scr+2oZFG0Jj7Q@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
For those who receive World Radio magazine, check out the article beginning
on page number 20. It features one of our avid grid chasers and satellite
enthusiasts here in North America.
73
Clayton
W5PFG
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Message: 7
Date: Tue, 3 Apr 2012 11:42:52 -0700
From: "Ted" <k7trkradio@xxxxxxx.xxx>
To: <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Dallas -FW weather..
Message-ID: <97F8ED3963924F7D94C9EDFA2AADA33C@xxxxxxxxxxx>
Content-Type: text/plain; charset="us-ascii"
Major tornado activity in Dallas - FW area right now.
Hopefully all are safe.
TK, K7TRK
18:40z
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_______________________________________________
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 7, Issue 107
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