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CX2SA > SATDIG 13.06.08 04:16l 698 Lines 19903 Bytes #999 (0) @ WW
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From: CX2SA@CX2SA.LAV.URY.SA
To : SATDIG@WW
Today's Topics:
1. French QRM on the uplink of AO-51 (OZ1MY)
2. Re: ESA CubeSats website (Larry Gerhardstein)
3. Re: French QRM on the uplink of AO-51 (steven attfield)
4. Re: French QRM on the uplink of AO-51 (Henk, PA3GUO)
5. Satellite Demonstrations at Ham-Com 13-14 June 2008
(Keith D. Pugh)
6. Cute CW June 11, 20:40utc (Henk, PA3GUO)
7. Re: French QRM on the uplink of AO-51 (OZ1MY)
8. Cubesats 2008/06/12 (David)
9. Delfi-C3 report (Stefan Wagener)
10. OT - Weather sats (Ed Tump)
11. Cute received 0820utc (CW), no packet (Henk, PA3GUO)
12. Re: CUTE-1.7+APDII camera Earth Picture (Mineo Wakita)
13. Re: OT - Weather sats (Artur)
14. Re: Delfi-C3 report (wouter weggelaar)
15. CUTE-1.7+APDII Earth Picture analysis (Mineo Wakita)
16. OT - Weather satellite antennas (Ed Tump)
17. ribbon cable in LVB Tracker (Ollie Eisman)
----------------------------------------------------------------------
Message: 1
Date: Wed, 11 Jun 2008 20:59:45 +0200
From: "OZ1MY" <oz1my(AT)privat.dk>
Subject: [amsat-bb] French QRM on the uplink of AO-51
To: "AMSAT-BB" <amsat-bb(AT)AMSAT.Org>
Message-ID: <000501c8cbf5$684f1b60$6501a8c0(AT)opasia.dk>
Content-Type: text/plain; charset="iso-8859-1"
Hi,
At the pass with AOS at 1837 UTC here
in Copenhagen there was a VERY strong
QRM from the North of France.
My French is too bad to understand it :-)
The uplink frequency is 145.880 MHz now with
AO-51 in Mode-V/S.
Hope someone can stop it.
73 OZ1MY
Ib
------------------------------
Message: 2
Date: Wed, 11 Jun 2008 13:06:07 -0600
From: "Larry Gerhardstein" <larry(AT)3-cities.com>
Subject: [amsat-bb] Re: ESA CubeSats website
To: "Mineo Wakita" <ei7m-wkt(AT)asahi-net.or.jp>, <amsat-bb(AT)amsat.org>
Message-ID: <004b01c8cbf6$34f9d240$0300a8c0(AT)hop>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
This is an impressive list. I'd like to know (& without doing the
research), if anyone can say. How many of these cubesat projects are
being coordinated by licensed amateur radio operators?
Larry W7IN
----- Original Message -----
From: "Mineo Wakita" <ei7m-wkt(AT)asahi-net.or.jp>
To: <amsat-bb(AT)amsat.org>
Sent: Wednesday, June 11, 2008 4:47 AM
Subject: [amsat-bb] ESA CubeSats website
>
> http://www.esa.int/esaED/SEM2BPUG3HF_index_0.html
>
> 1. SwissCube (Ecole Polytechnique Federale de Lausanne, Switzerland):
> http://www.epfl.ch/
> http://swisscube.epfl.ch/
>
> 2. Xatcobeo (a collaboration of the University of Vigo and INTA,
> Spain):
> http://www.uvigo.es/indice/index.gl.htm
>
> 3. UNICubeSAT (University of Rome, Italy):
> http://www.uniroma1.it/
> http://www.mat.uniroma2.it/english/main.html
>
> 4. Robusta (University of Montpellier 2, France):
> http://www.univ-montp2.fr/
> http://robusta.ies.univ-montp2.fr/
>
> 5. AtmoCube (University of Trieste, Italy):
> http://www.univ.trieste.it/
> http://www2.units.it/~atmocube/
>
> 6. e-st(AT)r (Politecnico di Torino, Italy):
> http://www.polito.it/
>
> 7. OUFTI-1 (University of Liege, Belgium):
> http://www.ulg.ac.be/cms/c_5000/accueil/
> http://www.leodium.ulg.ac.be/cmsms/
>
> 8. Goliat (University of Bucharest, Romania):
> http://www.unibuc.ro/en/home/
>
> 9. PW-Sat (Warsaw University of Technology, Poland):
> http://www.iem.pw.edu.pl/Eindex.html
>
> 10. UWE-3 (University of Wuerzburg, Germany):
> http://www.uni-wuerzburg.de/en/home/
>
> 11. HiNCube (Narvik University College, Norway):
> http://www.hin.no/index.php?ID=1717/
>
> _______________________________________________
> 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: 3
Date: Wed, 11 Jun 2008 15:46:19 -0400 (EDT)
From: steven attfield <steven_a(AT)rogers.com>
Subject: [amsat-bb] Re: French QRM on the uplink of AO-51
To: amsat-bb(AT)amsat.org
Message-ID: <869548.31752.qm(AT)web88206.mail.re2.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1
Are you sure it wasn't just a QSO conducted in french over ao-51?
OZ1MY <oz1my(AT)privat.dk> wrote: Hi,
At the pass with AOS at 1837 UTC here
in Copenhagen there was a VERY strong
QRM from the North of France.
My French is too bad to understand it :-)
The uplink frequency is 145.880 MHz now with
AO-51 in Mode-V/S.
Hope someone can stop it.
73 OZ1MY
Ib
_______________________________________________
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: Wed, 11 Jun 2008 22:08:11 +0200 (CEST)
From: "Henk, PA3GUO" <hamoen(AT)iae.nl>
Subject: [amsat-bb] Re: French QRM on the uplink of AO-51
To: <amsat-bb(AT)amsat.org>
Message-ID: <4046.212.61.85.173.1213214892.squirrel(AT)webmail.iae.nl>
Content-Type: text/plain; charset=iso-8859-1
Hi Ib !
In case you can derive from the accent that
it was the North part of France, your French
is not that bad at all :-)
(wasnt it Marocco or did you look at the footprint ?)
Henk, PA3GUO
> At the pass with AOS at 1837 UTC here
> in Copenhagen there was a VERY strong
> QRM from the North of France.
> My French is too bad to understand it :-)
------------------------------
Message: 5
Date: Wed, 11 Jun 2008 15:44:05 -0500
From: "Keith D. Pugh" <w5iu(AT)swbell.net>
Subject: [amsat-bb] Satellite Demonstrations at Ham-Com 13-14 June
2008
To: <amsat-bb(AT)amsat.org>
Message-ID: <000001c8cc03$e45764c0$5b01a8c0(AT)HAMSHACK>
Content-Type: text/plain; charset="us-ascii"
We will attempt to work/listen to as many of the passes below as
possible within the constraints of weather, manpower, etc. The callsign
will be W5IU and the times listed are in CDT.
Ham-Com 2008
Plano, Texas
Potential Satellite Demos
WinAos QTH: -96.7/33.1 T#: 11121 Sat.: 7 [Standard]
----------------------------------------------------------
Day Object AOS (L) LOS Period maxEl AZ
----------------------------------------------------------
13.06.2008 AO-07 08:38 08:59 21 45 024 - 179
13.06.2008 AO-51 09:23 09:36 13 41 003 - 210
13.06.2008 AO-07 10:31 10:51 20 35 005 - 226
13.06.2008 VO-52 12:09 12:21 12 38 002 - 209
13.06.2008 ISS 12:42 12:51 09 33 242 - 041
13.06.2008 SO-50 12:54 13:08 14 50 195 - 034
13.06.2008 AO-27 15:13 15:27 14 36 145 - 357
13.06.2008 RS-30 15:50 16:12 22 53 168 - 012
13.06.2008 AO-27 16:53 17:06 13 21 201 - 331
13.06.2008 RS-30 17:47 18:08 21 28 220 - 356
WinAos QTH: -96.7/33.1 T#: 11122 Sat.: 7 [Standard]
----------------------------------------------------------
Day Object AOS (L) LOS Period maxEl AZ
----------------------------------------------------------
14.06.2008 AO-51 08:44 08:57 13 71 015 - 189
14.06.2008 AO-07 09:31 09:52 21 84 015 - 201
14.06.2008 AO-51 10:24 10:33 09 09 341 - 246
14.06.2008 VO-52 10:52 11:03 11 21 031 - 166
14.06.2008 AO-07 11:25 11:42 17 16 358 - 251
14.06.2008 ISS 11:29 11:38 09 46 214 - 051
14.06.2008 SO-50 11:44 11:55 11 13 161 - 051
14.06.2008 VO-52 12:28 12:39 11 23 354 - 220
14.06.2008 ISS 13:05 13:12 07 12 270 - 029
14.06.2008 SO-50 13:23 13:37 14 53 219 - 025
14.06.2008 AO-27 14:45 14:58 13 20 129 - 005
14.06.2008 RS-30 15:02 15:21 19 27 148 - 020
14.06.2008 AO-27 16:24 16:38 14 41 184 - 339
14.06.2008 RS-30 16:57 17:19 22 54 200 - 002
Lat: N 33.0550 deg
Long: W 96.6821 deg
Elev: 211.8 meters
Grid: EM13pb
See you on the "Birds!"
73 - Keith, W5IU
------------------------------
Message: 6
Date: Wed, 11 Jun 2008 22:52:39 +0200 (CEST)
From: "Henk, PA3GUO" <hamoen(AT)iae.nl>
Subject: [amsat-bb] Cute CW June 11, 20:40utc
To: <amsat-bb(AT)amsat.org>
Message-ID: <1489.212.61.85.173.1213217559.squirrel(AT)webmail.iae.nl>
Content-Type: text/plain; charset=iso-8859-1
June 11, 2008, 20:40 utc
cute 87cbaa9538272374533b17 hi hi de jq1ytc digi off
.... ...................... .. .. .. ...... .... ...
.... ..cba99a3826237a633a17 hi hi de jq1ytc digi off
cute 87ccae923826237b633917 hi hi de jq1ytc digi off
cute 87ccad923826237d553717 hi hi de jq1ytc digi off
cute 87cca9973825227c673217 hi hi de jq1ytc digi off
cute 87cca9993825237c5d.... hi hi de jq1ytc digi off
cute 87ccaa973825
437.275 MHZ, CW, 2x8 elements beam, no pre-amp
Kenwood TS2000
Henk, PA3GUO
------------------------------
Message: 7
Date: Wed, 11 Jun 2008 23:59:16 +0200
From: "OZ1MY" <oz1my(AT)privat.dk>
Subject: [amsat-bb] Re: French QRM on the uplink of AO-51
To: "Henk, PA3GUO" <hamoen(AT)iae.nl>, <amsat-bb(AT)amsat.org>
Message-ID: <000a01c8cc0e$645416a0$6501a8c0(AT)opasia.dk>
Content-Type: text/plain; charset="iso-8859-1"
Hi Henk,
No - my French is very bad :-)
I watched the footprint of AO-51.
No way it could be from Marocco.
The conversation stopped when France was out of
the footprint.
So it is from the very North af France.
By the way it has not happened before from France.
Hope it will stop.
73 OZ1MY
Ib
----- Original Message -----
From: "Henk, PA3GUO" <hamoen(AT)iae.nl>
To: <amsat-bb(AT)amsat.org>
Sent: Wednesday, June 11, 2008 10:08 PM
Subject: [amsat-bb] Re: French QRM on the uplink of AO-51
> Hi Ib !
>
> In case you can derive from the accent that
> it was the North part of France, your French
> is not that bad at all :-)
>
> (wasnt it Marocco or did you look at the footprint ?)
>
> Henk, PA3GUO
>
> > At the pass with AOS at 1837 UTC here
> > in Copenhagen there was a VERY strong
> > QRM from the North of France.
> > My French is too bad to understand it :-)
>
>
>
> _______________________________________________
> 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: Thu, 12 Jun 2008 10:16:27 +0930
From: David <vk5dg(AT)aapt.net.au>
Subject: [amsat-bb] Cubesats 2008/06/12
To: amsat-bb(AT)amsat.org
Message-ID: <200806121016.27381.vk5dg(AT)aapt.net.au>
Content-Type: text/plain; charset="us-ascii"
Hello All,
Just listened to the latest pass at 0030-0040 UTC
CUTE1.7 not heard on 437.275 CW or anything on 437.475 either.
DO-64 / Delfi-c3 not heard.
SEEDS - digitalker/sstv mode (so my 70cm setup is still working ok.)
73 de David VK5DG
------------------------------
Message: 9
Date: Wed, 11 Jun 2008 21:16:24 -0500
From: "Stefan Wagener" <stefan_wagener(AT)hotmail.com>
Subject: [amsat-bb] Delfi-C3 report
To: "'amsat'" <amsat-bb(AT)amsat.org>
Message-ID: <BAY130-DAV1B1B7F9ABFE2802C7901AF6AD0(AT)phx.gbl>
Content-Type: text/plain; charset="us-ascii"
My recent observations:
The satellite is still experiencing abrupt termination of telemetry
transmission. During ascending passes telemetry is transmitted once
satellite comes out of eclipse. Initial signal sometimes rough and
500Hz-1Khz above nominal frequency. Rapid warming will bring signal
frequency down to +450 Hz. Sometimes satellite telemetry starts repeatedly
after 30 to 40 packets, other times it runs for 100 to 300 packets before
abruptly stopping.
Will wait for the Delfi-C3 team to report on their attempts on working this
one out.
However, the satellite is working and active.
Stefan, VE4NSA
------------------------------
Message: 10
Date: Wed, 11 Jun 2008 22:59:52 -0500
From: "Ed Tump" <ed(AT)squaretfarm.com>
Subject: [amsat-bb] OT - Weather sats
To: <amsat-bb(AT)amsat.org>
Message-ID: <000301c8cc40$c5f30330$51d90990$(AT)com>
Content-Type: text/plain; charset="us-ascii"
Folks,
Any idea on what kind of TX power is being used for the weather satellites?
Thanks.
73,
Ed
KC9GWK
Grid EN52
AmSat Member
------------------------------
Message: 11
Date: Thu, 12 Jun 2008 10:31:04 +0200 (CEST)
From: "Henk, PA3GUO" <hamoen(AT)iae.nl>
Subject: [amsat-bb] Cute received 0820utc (CW), no packet
To: <amsat-bb(AT)amsat.org>
Message-ID: <1405.212.61.85.173.1213259464.squirrel(AT)webmail.iae.nl>
Content-Type: text/plain; charset=iso-8859-1
June 12, 2008, 08:20 utc CW 437.275
.... ........s52623615a3817
cute 87ccaeb9382624615d4017
cute 87cbadb8382723625b4817
cute 87cbaeb3382624625f4617
cute 87cbadb5382624635a4417
cute 87cbadb1382624635f4c17
...
Report send to the CUTE team as well.
No packet activity heared at 437.475.
Henk, PA3GUO
------------------------------
Message: 12
Date: Thu, 12 Jun 2008 19:32:08 +0900
From: Mineo Wakita <ei7m-wkt(AT)asahi-net.or.jp>
Subject: [amsat-bb] Re: CUTE-1.7+APDII camera Earth Picture
To: sford(AT)arrl.org
Cc: amsat-bb(AT)amsat.org
Message-ID: <6EC8CC7790E03Fei7m-wkt(AT)asahi-net.or.jp>
Content-Type: text/plain; charset=us-ascii
The grand station says as follows:
The CMOS camera like Mobile device is carried in Cute-1.7 + APD II.
A picture is acquired by controlling from PDA which is OBC.
Furthermore JPEG conversion is performed inside PDA. And the file size
is compressed, and the downlink is carried out on the ground station
using FM packet with a U-band.
When a camera turned to the direction of the earth, a photograph was
set up and taken so that a shutter might be cut. However, since this
function worked normally, it is still under examination whether it is
that the earth was reflected.
Cute-1.7 + APD II took four photographs by the present and carried out
the downlink of the thumbnail (64*48 pixels) about these all.
The photograph of the full-size picture (640*480 pixels) which the earth
is reflected finely and the downlink has completed is only what was
exhibited on my website the other day.
------------------------------
Message: 13
Date: Thu, 12 Jun 2008 12:35:38 +0200
From: Artur <sp5qan(AT)gmail.com>
Subject: [amsat-bb] Re: OT - Weather sats
To: "Ed Tump" <ed(AT)squaretfarm.com>
Cc: amsat-bb(AT)amsat.org
Message-ID:
<4d10ea570806120335k49352d0fva6923cd967fd1728(AT)mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Hello ED and al
> Any idea on what kind of TX power is being used for the weather satellites?
>
In case of NOAA POES - APT trasmision:
" ...The signal itself is a 256-level amplitude
modulated<http://en.wikipedia.org/wiki/Amplitude_modulated>2400
Hz <http://en.wikipedia.org/wiki/Hz>
subcarrier<http://en.wikipedia.org/wiki/Subcarrier>,
which is then frequency
modulated<http://en.wikipedia.org/wiki/Frequency_modulated>onto the
137MHz-band RF
carrier <http://en.wikipedia.org/wiki/Carrier_wave>. Maximum subcarrier
modulation is 87% (?5%), and overall RF bandwidth is 34KHz. On NOAA POES
vehicles, the signal is broadcast at approximately
40dBm<http://en.wikipedia.org/wiki/DBm>(10 watts) effective
radiated power <http://en.wikipedia.org/wiki/Effective_radiated_power>."
Source: http://en.wikipedia.org/wiki/Automatic_Picture_Transmission
Vy! 73 de Artur SP5QA
------------------------------
Message: 14
Date: Thu, 12 Jun 2008 13:25:54 +0200
From: "wouter weggelaar" <wouterweg(AT)gmail.com>
Subject: [amsat-bb] Re: Delfi-C3 report
To: "Stefan Wagener" <stefan_wagener(AT)hotmail.com>
Cc: amsat <amsat-bb(AT)amsat.org>
Message-ID:
<7abd0e260806120425h4c67a3bcs4da1aa4293e28736(AT)mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Hi Stefan,
Thank you for your observations!
We are still working on the issues and Wouter Jan Ubbels PE4WJ will
post a status update when we have more news about Delfi-C3 (DO-64)
The startup behavior you mention is indeed caused by the rapid warming
up of the internal electronics by switching on the PA. This is normal
and was designed for.
Delfi-C3 is too small to accommodate an ovenized crystal and this also
consumes too much power.
73
Wouter Weggelaar PA3WEG
Delfi-C3 Team
On Thu, Jun 12, 2008 at 4:16 AM, Stefan Wagener
<stefan_wagener(AT)hotmail.com> wrote:
> My recent observations:
>
>
>
> The satellite is still experiencing abrupt termination of telemetry
> transmission. During ascending passes telemetry is transmitted once
> satellite comes out of eclipse. Initial signal sometimes rough and
> 500Hz-1Khz above nominal frequency. Rapid warming will bring signal
> frequency down to +450 Hz. Sometimes satellite telemetry starts repeatedly
> after 30 to 40 packets, other times it runs for 100 to 300 packets before
> abruptly stopping.
>
>
>
> Will wait for the Delfi-C3 team to report on their attempts on working this
> one out.
>
>
>
> However, the satellite is working and active.
>
>
>
> Stefan, VE4NSA
>
> _______________________________________________
> 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: 15
Date: Thu, 12 Jun 2008 21:35:11 +0900
From: Mineo Wakita <ei7m-wkt(AT)asahi-net.or.jp>
Subject: [amsat-bb] CUTE-1.7+APDII Earth Picture analysis
To: amsat-bb(AT)amsat.org
Message-ID: <70C8CC88C1B14Cei7m-wkt(AT)asahi-net.or.jp>
Content-Type: text/plain; charset=us-ascii
CUTE-1.7+APDII camera Earth Picture was analyzed
by the grand station as follows.
First, rotate the picture by 180degrees.
Can you see land in the left side of the picture?
http://lss.mes.titech.ac.jp/ssp/cute1.7/blog/080601_Picture_180degRotated.jpg
Using the Google Earth and see Japan from the position of Cute-1.7
then trim the image by 50degrees. Coastlines are identical.
http://lss.mes.titech.ac.jp/ssp/cute1.7/blog/080601_Picture_GoogleEarth_Japan.
jpg
To clearly compare them, look at the picture below.
In the picture, parts of coastlines are accentuated.
Also, shapes of clouds looks the same.
http://lss.mes.titech.ac.jp/ssp/cute1.7/blog/080601_Picture_Comparison.jpg
JA1GDE/Mr.Kasei gives us the following picture which clearly shows
what was in the picture. We'd like to say thank you for Mr.Kasei.
http://lss.mes.titech.ac.jp/ssp/cute1.7/blog/080601_Picture_JA1GDE.jpg
See more:
http://www.ne.jp/asahi/hamradio/je9pel/cut17apd.htm#bottom
------------------------------
Message: 16
Date: Thu, 12 Jun 2008 11:19:11 -0500
From: "Ed Tump" <ed(AT)squaretfarm.com>
Subject: [amsat-bb] OT - Weather satellite antennas
To: <amsat-bb(AT)amsat.org>
Message-ID: <000001c8cca8$0de20f30$29a62d90$(AT)com>
Content-Type: text/plain; charset="us-ascii"
Folks,
Thanks for the response on power. Now I wonder if my Arrow satellite antenna
will work for these weather satellites or my AL800 HT antenna.
Any ideas?
Thanks.
73,
Ed
KC9GWK
Grid EN52
AmSat Member
------------------------------
Message: 17
Date: Thu, 12 Jun 2008 10:24:36 -0600
From: Ollie Eisman <ollie(AT)ollietech.com>
Subject: [amsat-bb] ribbon cable in LVB Tracker
To: AMSAT-BB <amsat-bb(AT)amsat.org>
Message-ID: <CCA1F4BB-3FBC-48F0-8ECB-FF9B12F9037B(AT)ollietech.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
Hi,
I am looking for a source for multi-color ribbon cable that is used to
connect the LCD to the PCB header in the latest LVB Tracker box. Any
suggestions on what to use and where to find it?
73,
Ollie AJ1O
------------------------------
_______________________________________________
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
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