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CX2SA > SATDIG 07.08.12 19:42l 577 Lines 16802 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. 437 MHz - Curiosity - Mars Reconnaissance Orbiter Frequencies
(Trevor .)
2. Re: GN36/GN26 operation (Mark Saurman)
3. Re: MRO picture of Curiosity during descent (Joe Fitzgerald)
4. Quite a way to rehabilitate yourself ... (Joe Fitzgerald)
5. Re: MRO picture of Curiosity during descent (Arthur Feller)
6. portable... EN54 (Vince, K9TSU)
7. Re: MRO picture of Curiosity during descent (B J)
8. QSL available for AubieSat-1 / AO-71 reception
(John Klingelhoeffer)
9. Re: VE3NKL/p (Nikolai Ozerov)
10. UA9CS Igor (Marco)
11. Re: Quite a way to rehabilitate yourself ... (Alan P. Biddle)
12. Technical question about radar reflectivity (Graham Shirville)
13. Radio Astronomer Sir Bernard Lovell, SK (andy thomas)
14. Re Radar reflectivity (Rsoifer@xxx.xxxx
15. Re: 437 MHz - Curiosity - Mars Reconnaissance Orbiter
Frequencies (Zilvinas, LY2SS)
16. IEEE Spectrum Article on AFRL's Plug and Play Satellite
Architecture (tom@xxxxxxxxxxx.xxxx
17. (no subject) (B J)
18. Re: (no subject) (B J)
19. Re: Radio Astronomer Sir Bernard Lovell, SK (Trevor .)
----------------------------------------------------------------------
Message: 1
Date: Mon, 6 Aug 2012 21:18:16 +0100 (BST)
From: "Trevor ." <m5aka@xxxxx.xx.xx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] 437 MHz - Curiosity - Mars Reconnaissance Orbiter
Frequencies
Message-ID:
<1344284296.80356.YahooMailClassic@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=utf-8
My thanks to someone who emailed me earlier this evening.
Curiosity transmits around 401 MHz but the transponder on the Mars
Reconnaissance Orbiter has a CCSDS Forward Frequency in the 437 MHz
Amateur-Satellite Service band.
We well know that 435-438 MHz is shared with the Military but 432-438 MHz is
of course a Space SAR Band, and I understand general Space usage extends
beyond that.
This paper describes the operation of the MRO (see page 34 onwards)
http://descanso.jpl.nasa.gov/DPSummary/MRO_092106.pdf
73 Trevor M5AKA
------------------------------
Message: 2
Date: Mon, 6 Aug 2012 18:20:03 -0400
From: Mark Saurman <vo1one@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: GN36/GN26 operation
Message-ID:
<CACc=EZ5ud9JThEO5+HaKc1guD10TzmE9-Ym+-5rwy53dr5yiKQ@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hi again,
Thanks everyone for the QSOs while I was on the GN26/GN36 border and on the
GN26/GN27 border. Hope I was able to give a few of you some new ones.
Sorry for the short advance notice. Our trip back to NL is primarily to
visit friends and family and the XYL is standing in a wedding so radio is
not at the forefront. When she decided she was going out with her female
friends to see Magic Mike I decided to take that opportunity to head to
some rarer grids hihihi! I will probably have opportunity to get out again
but it'll be with short notice again. The GN36/26 border is about an hour
and a half to two hour drive from here but I can get to GN36 in just under
an hour. Since it seems like most have been asking for GN36 that's
probably where I'll head. Of course if anyone wants a contact from GN37
that can be easily provided, just let me know. We'll be leaving here on
the 17th. Also, we're going to Saint-Pierre next Monday, August 13th.
Operations will be from GN16, unlike many DXpeditions who go to the very
ham friendly Hotel Miquelon up in GN17 so maybe some of you need that.
For QSLing, please QSL direct to N8TLV. I do not currently have LotW but
getting my ID mailed out to the ARRL from here before I leave is on my
to-do list. I have the software installed already so I will have LotW,
just be patient and I'll have your QSOs loaded in.
Hope that answers everyone's questions!
73,
Mark VO1ONE
------------------------------
Message: 3
Date: Mon, 06 Aug 2012 22:23:23 -0400
From: Joe Fitzgerald <jfitzgerald@xxxx.xxx.xxx>
To: AMSAT-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: MRO picture of Curiosity during descent
Message-ID: <50207C1B.9050809@xxxx.xxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 8/6/2012 2:45 PM, Alan P. Biddle wrote:
> An amazing picture of Curiosity and it's parachute during the descent phase:
>
>
The MRO HiRISE team is 2 for 2 ... they pulled off the same feat for
Phoenix back in 2008
http://hirise.lpl.arizona.edu/phoenix-descent.php
-Joe KM1P
------------------------------
Message: 4
Date: Mon, 06 Aug 2012 22:40:31 -0400
From: Joe Fitzgerald <jfitzgerald@xxxx.xxx.xxx>
To: AMSAT-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Quite a way to rehabilitate yourself ...
Message-ID: <5020801F.6070408@xxxx.xxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Will these guys help us launch AMSAT Fox?
http://www.spacenews.com/civil/120726-san-quentin-prisoners-building-satellite
-hardware-for-nasa.html
-Joe
------------------------------
Message: 5
Date: Mon, 6 Aug 2012 22:41:56 -0400
From: Arthur Feller <afeller@xxxx.xxx>
To: Joe Fitzgerald <jfitzgerald@xxxx.xxx.xxx>
Cc: AMSAT-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: MRO picture of Curiosity during descent
Message-ID: <10BD841A-EC01-4E04-92C5-1F8DEA5887F4@xxxx.xxx>
Content-Type: text/plain; charset=us-ascii
Amazing is the shot of Curiosity under the parachute AND the heat shield
falling behind. See:
http://www.nasa.gov/images/content/673982main_PIA15993-43_full.jpg
On 6-Aug-2012, at 10:23 PM, Joe Fitzgerald <jfitzgerald@xxxx.xxx.xxx> wrote:
> On 8/6/2012 2:45 PM, Alan P. Biddle wrote:
>> An amazing picture of Curiosity and it's parachute during the descent
phase:
>>
>>
> The MRO HiRISE team is 2 for 2 ... they pulled off the same feat for
Phoenix back in 2008
>
> http://hirise.lpl.arizona.edu/phoenix-descent.php
>
> -Joe KM1P
> _______________________________________________
> 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
Public opinion rarely considers the needs of the next generation or the
history of the last. It is frequently hampered by myths and misinformation,
by stereotypes and shibboleths, and by an inate resistance to innovation.
-Theodore C. Sorensen, presidential advisor, lawyer, and writer
(1928-2010)
http://afeller.us
------------------------------
Message: 6
Date: Mon, 6 Aug 2012 22:17:11 -0500
From: "Vince, K9TSU" <k9tsu@xxxxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] portable... EN54
Message-ID:
<CALRttT2nVWGRNKzzYhXa2Y2C05Q=biSmBC4VBLerqUDvVb5erg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Hey guys.. I'm portable in EN54.. Wisconsin for the night. I had some
trouble with the power lines on the last SO50 past.. but this next one
around 11:30pm Central time looks better for me at 55 degrees above my
horizon. Look for me... I know it's kind ofa late pass, but I manually
track the satellite so QSO's going on helps me "hone in." THX :)
K9TSU
------------------------------
Message: 7
Date: Tue, 7 Aug 2012 03:18:27 +0000
From: B J <va6bmj@xxxxx.xxx>
To: Arthur Feller <afeller@xxxx.xxx>
Cc: AMSAT-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: MRO picture of Curiosity during descent
Message-ID:
<CAP7QzkPv0yvOKXWt0vYR=nxrKHEDK_y-Lr2p+pJckVXObcNTFg@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
On 8/7/12, Arthur Feller <afeller@xxxx.xxx> wrote:
> Amazing is the shot of Curiosity under the parachute AND the heat shield
> falling behind. See:
> http://www.nasa.gov/images/content/673982main_PIA15993-43_full.jpg
>
>
<snip>
Here's a time-lapse video of the landing as seen by the rover's descent
imager:
http://www.onorbit.com/node/4835
73s
Bernhard VA6BMJ @ DO33FL
------------------------------
Message: 8
Date: Tue, 7 Aug 2012 00:23:02 -0400 (EDT)
From: John Klingelhoeffer <wb4lnm@xxx.xxx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] QSL available for AubieSat-1 / AO-71 reception
Message-ID: <8CF426B77F1CAE7-950-60EF6@xxxxxxxxxxxx.xxxxxx.xxx.xxx>
Content-Type: text/plain; charset="us-ascii"
A QSL verification of receipt card is now available for AubieSat-1 / AO-71
reception.
Operators desiring a confirmation of receipt for AO-71 are invited to send
their signal reports to:
Dr. J-M Wersinger, KI4YAU
Allison Laboratories Room 210
Auburn University, AL 36849
Please note the date and time of receipt on your request (or your QSL card),
as well as any other pertinent receiving information or conditions. Copies
of the content of the CW signals you copied are requested, but not required.
Any other questions regarding AubieSat-1 may be emailed to:
jm.wersinger <at> gmail.com
Thank you and 73.
------------------------------
Message: 9
Date: Mon, 6 Aug 2012 18:18:24 -0400
From: Nikolai Ozerov <ve3nkl@xxxxx.xxx>
To: amsat-bb@xxxxx.xxx
Cc: kb5mu@xxxxx.xxx
Subject: [amsat-bb] Re: VE3NKL/p
Message-ID:
<CACmb9JiY6Ej6td4_XUtYCV7D5-BeE+SLoN4pb-syMffn0UXKag@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
Thanks to everybody who was on the satellites during our vacation in
Newfoundland. Working you on the birds was an exciting experience...
Now it is time to fill out QSL cards and send them out... I will
update my progress on this on the QRZ page.
73, Nikolai / VE3NKL
> Many thanks to Nikolai, VE3NKL, who operated portable from 6 different
> grids in Newfoundland, Canada during the past 2 weeks.
>
> *Thanks to his family that shared their vacation time with us "Grid
> Chasers" while Nikolai took time out to work the satellite passes.*
>
> Great signal and you handled it well Nikolai. Thank you for the contacts
> and new grid squares.
> Thanks for GN09, GN19, GN26, GN28, GN37 & GN38 (May have been one more!).
>
> When do you go on vacation again?? HI HI!
> 73
> de K4FEG EM55
------------------------------
Message: 10
Date: Tue, 07 Aug 2012 09:25:29 +0200
From: Marco <ik1ran@xxxxx.xx>
To: AMSAT-BB@xxxxx.xxx
Subject: [amsat-bb] UA9CS Igor
Message-ID: <5020C2E9.9070600@xxxxx.xx>
Content-Type: text/plain; charset=ISO-8859-15; format=flowed
Good morning all
I have notice interesting to UA9CS Igor but noting
the mail in qrz.com , help me
Thank in advance
Mark
ik1ran
------------------------------
Message: 11
Date: Tue, 7 Aug 2012 06:49:55 -0500
From: "Alan P. Biddle" <APBIDDLE@xxxxxx.xxx>
To: "'Joe Fitzgerald'" <jfitzgerald@xxxx.xxx.xxx>, "'AMSAT-bb'"
<amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: Quite a way to rehabilitate yourself ...
Message-ID: <4D9733BB077C488686C7C48F16763EFF@xxxxxx>
Content-Type: text/plain; charset="us-ascii"
Got to beat stamping out license plates.
Alan
WA4SCA
-----Original Message-----
From: amsat-bb-bounces@xxxxx.xxx [mailto:amsat-bb-bounces@xxxxx.xxxx On
Behalf Of Joe Fitzgerald
Sent: Monday, August 06, 2012 9:41 PM
To: AMSAT-bb
Subject: [amsat-bb] Quite a way to rehabilitate yourself ...
Will these guys help us launch AMSAT Fox?
http://www.spacenews.com/civil/120726-san-quentin-prisoners-building-satelli
te-hardware-for-nasa.html
-Joe
_______________________________________________
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: 12
Date: Tue, 7 Aug 2012 12:50:48 +0100
From: "Graham Shirville" <g.shirville@xxxxxxxxxx.xxx>
To: "AMSAT BB" <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Technical question about radar reflectivity
Message-ID: <5BE760F8627742F4A4BB4F97F94367DB@xxxxxxx.xxxxx>
Content-Type: text/plain; charset="utf-8"
Hi All,
I am preparing a response to the UK Space Agency Consultation Document on
the planned Reform of the UK Outer Space Act. Generally the proposals appear
to support cubesat development here in the UK and therefore should be
supported.
Included in the Impact Assessment document that comes with the Consultation
Document is a finding that ? Further, cubesat designers should be encouraged
to incorporate appropriate reflectors on the outside of their platforms to
enhance their radar cross-section/signatures and therefore their
detectability from the ground in order to minimise the potential collision
risk with other operational satellites.?
Would I be technically correct to be able to state something along the lines
of... ?Many/most cubesat platforms have communication systems that use
frequencies in the 435-438MHz amateur satellite service and use projecting
1/4 wave monopole or 1/2 wave dipole antennas. As these frequencies are
adjacent to those used by many of the ground based radars used for tracking
space objects, it can be demonstrated that this finding is being and will be
satisfied?
I assume that their reflection will be enhanced by these antennas but want
to make certain of the facts ..... so expert comments please.
thanks
Graham
G3VZV
------------------------------
Message: 13
Date: Tue, 7 Aug 2012 15:58:04 +0100 (BST)
From: andy thomas <andythomasmail@xxxxx.xx.xx>
To: "amsat-bb@xxxxx.xxxx <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Radio Astronomer Sir Bernard Lovell, SK
Message-ID:
<1344351484.29538.YahooMailNeo@xxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
http://www.bbc.co.uk/news/uk-england-19164236
?
73 de andy g0sfj
------------------------------
Message: 14
Date: Tue, 7 Aug 2012 11:19:52 -0400 (EDT)
From: Rsoifer@xxx.xxx
To: satcoord-i@xxxx.xxx
Cc: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re Radar reflectivity
Message-ID: <1379e.1c3d7ce6.3d528c17@xxx.xxx>
Content-Type: text/plain; charset="US-ASCII"
Graham et al,
Further to my last email, I discussed the subject in greater depth in my
December 1961 QST article, "The Mechanisms of Space Communication." It is
available to ARRL members on www.arrl.org.
73 Ray
------------------------------
Message: 15
Date: Tue, 07 Aug 2012 09:02:13 +0300
From: "Zilvinas, LY2SS" <zilvinas@xxxxx.xx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: 437 MHz - Curiosity - Mars Reconnaissance
Orbiter Frequencies
Message-ID: <5020AF65.40806@xxxxx.xx>
Content-Type: text/plain; charset=UTF-8; format=flowed
http://www.stuff.co.nz/timaru-herald/news/7426497/Mars-link-for-Timaru-man
73!
------------------------------
Message: 16
Date: Tue, 7 Aug 2012 12:08:18 -0400
From: tom@xxxxxxxxxxx.xxx
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] IEEE Spectrum Article on AFRL's Plug and Play
Satellite Architecture
Message-ID:
<c1b0ac02154bb2deb0f925d0ec0eaf62.squirrel@xxxxx.xxxxxxxxxxxxxx.xxx>
Content-Type: text/plain;charset=iso-8859-1
http://spectrum.ieee.org/aerospace/satellites/us-air-forces-plugandplay-satell
ites/
Tom WB8WOR
------------------------------
Message: 17
Date: Tue, 7 Aug 2012 16:14:34 +0000
From: B J <va6bmj@xxxxx.xxx>
To: amsat-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] (no subject)
Message-ID:
<CAP7QzkMxL2cxS7yY1gqKKdHYn2e29aXogL+b_E5Lht4R78=DwA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
http://www.onorbit.com/node/4836
73s
Bernhard VA6BMJ @ DO33FL
------------------------------
Message: 18
Date: Tue, 7 Aug 2012 16:16:41 +0000
From: B J <va6bmj@xxxxx.xxx>
To: amsat-bb <amsat-bb@xxxxx.xxx>
Subject: [amsat-bb] Re: (no subject)
Message-ID:
<CAP7QzkPVzWr_qh4x7Uw0HaxYxFq7-TPrD8Kq7W37C-q=Qy1dFA@xxxx.xxxxx.xxx>
Content-Type: text/plain; charset=ISO-8859-1
The title of my posting should have read "First Colour Picture From
Mars Science Laboratory".
For some reason, Gmail deleted it when I sent it.
73s
Bernhard VA6BMJ @ DO33FL
On 8/7/12, B J <va6bmj@xxxxx.xxx> wrote:
> http://www.onorbit.com/node/4836
>
> 73s
>
> Bernhard VA6BMJ @ DO33FL
>
------------------------------
Message: 19
Date: Tue, 7 Aug 2012 18:30:27 +0100 (BST)
From: "Trevor ." <m5aka@xxxxx.xx.xx>
To: amsat-bb@xxxxx.xxx
Subject: [amsat-bb] Re: Radio Astronomer Sir Bernard Lovell, SK
Message-ID:
<1344360627.93062.YahooMailClassic@xxxxxxxxx.xxxx.xxx.xxxxx.xxx>
Content-Type: text/plain; charset=iso-8859-1
In his early teens he built an illegal radio transmitter, see the video
interview he gave at
http://www.webofstories.com/play/17785
73 Trevor M5AKA
--- On Tue, 7/8/12, andy thomas <andythomasmail@xxxxx.xx.xx> wrote:
> http://www.bbc.co.uk/news/uk-england-19164236
> ?
> 73 de andy g0sfj
------------------------------
_______________________________________________
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 250
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