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CX2SA > SATDIG 19.03.08 08:00l 899 Lines 31503 Bytes #999 (0) @ WW
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To : SATDIG@WW
Today's Topics:
1. Re: General Astrodynamics Library (Geoff)
2. Re: Courteous AO-51 Operation (John Marranca, Jr)
3. KD6PAG grid ?? (Alvaro de Leon Romo)
4. HQ8R Swan islands contact (Luc Leblanc)
5. Re: Help with rotor control and GS-232B (WILLIAMS MICHAEL)
6. Arthur C. Clarke, RIP (Alan P. Biddle)
7. looking for N2BX, Paul Trush (Stargate)
8. Writer Arthur C Clarke dies at 90 (Trevor)
9. [OT] Is it possible to directly receive TDRSS Ku-band TV?
(Rick Mann)
10. Re: Arthur C. Clarke, RIP (Jim Jerzycke)
11. Replacement KLM 2M-14C matching harness coax? (Ken Swaggart)
12. orbiting "disco ball" bounces back single photons (Nate Duehr)
13. Arthur C. Clarke, SK (Arthur Feller)
14. Re: Arthur C. Clarke, RIP (Jim Jerzycke)
15. Re: [amsat-edu] Arthur C. Clarke, SK (N6TX)
16. Re: Help with rotor control and GS-232B (John Kopala)
17. Arthur C. Clarke Dies at Age 90 (Eric Rosenberg)
----------------------------------------------------------------------
Message: 1
Date: Wed, 19 Mar 2008 07:38:50 +1100
From: Geoff <vk2tfg(AT)ozemail.com.au>
Subject: [amsat-bb] Re: General Astrodynamics Library
To: amsat-bb(AT)amsat.org
Message-ID: <200803190738.50360.vk2tfg(AT)ozemail.com.au>
Content-Type: text/plain; charset="iso-8859-1"
On Wednesday 19 March 2008 04:58, Willmott, Paul wrote:
> Hi All,
>
> I've been working on a general c/c++ astrodynamics library. It is
> strictly a work in progress, and so far only includes the basic
> astronomy routines. Next up will be the orbit propagators, and tracking
> stuff. Anyway, its time for it to see the outside world. It can be
> downloaded from here:
>
> http://homepage.mac.com/pclwillmott/GAL/index.html
>
> Its released under GPL 2 and was developed under OSX using the GNU
> development tools, so should compile OK on UNIX / GNU Linux / and under
> cygwin in Windows.
>
> The routines are primitives, and it is deliberatly not framework based,
> so you can rip bits for your projects without lots of baggage.
>
> Please let me know any comments.
snipped
Hi Paul,
I had a go at your GAL package on my Debian 4.0 hppa box. Download,
unpack,
configure, make and make install work well but make check barfs with the
trace you'll see quoted below. I don't have the programming skills to do
anything with it but I'm always glad to try and break software :-) .
73 de Geoff vk2tfg.
> hppa:/home/vk2tfg/libgal-0.1.0# make check
> Making check in test
> make[1]: Entering directory `/home/vk2tfg/libgal-0.1.0/test'
> make[1]: Nothing to be done for `check'.
> make[1]: Leaving directory `/home/vk2tfg/libgal-0.1.0/test'
> Making check in vec_mat
> make[1]: Entering directory `/home/vk2tfg/libgal-0.1.0/vec_mat'
> make[1]: Nothing to be done for `check'.
> make[1]: Leaving directory `/home/vk2tfg/libgal-0.1.0/vec_mat'
> Making check in ephemerides
> make[1]: Entering directory `/home/vk2tfg/libgal-0.1.0/ephemerides'
> make[1]: Nothing to be done for `check'.
> make[1]: Leaving directory `/home/vk2tfg/libgal-0.1.0/ephemerides'
> Making check in pstrings
> make[1]: Entering directory `/home/vk2tfg/libgal-0.1.0/pstrings'
> make[1]: Nothing to be done for `check'.
> make[1]: Leaving directory `/home/vk2tfg/libgal-0.1.0/pstrings'
> Making check in star
> make[1]: Entering directory `/home/vk2tfg/libgal-0.1.0/star'
> make[1]: Nothing to be done for `check'.
> make[1]: Leaving directory `/home/vk2tfg/libgal-0.1.0/star'
> Making check in eao
> make[1]: Entering directory `/home/vk2tfg/libgal-0.1.0/eao'
> make[1]: Nothing to be done for `check'.
> make[1]: Leaving directory `/home/vk2tfg/libgal-0.1.0/eao'
> Making check in date_time
> make[1]: Entering directory `/home/vk2tfg/libgal-0.1.0/date_time'
> make[1]: Nothing to be done for `check'.
> make[1]: Leaving directory `/home/vk2tfg/libgal-0.1.0/date_time'
> make[1]: Entering directory `/home/vk2tfg/libgal-0.1.0'
> make gal_tdatetime gal_tvecmat gal_tprecnut gal_tearthrot gal_tephemerides
> gal_tpstrings gal_tstar make[2]: Entering directory
> `/home/vk2tfg/libgal-0.1.0'
> gcc -DHAVE_CONFIG_H -I. -Itest -g -O2 -c -o gal_tdatetime.o `test -f
> 'date_time/gal_tdatetime.c' || echo './'`date_time/gal_tdatetime.c In file
> included from date_time/gal_tdatetime.c:44:
> test/gal_test_common.h:78:3: warning: no newline at end of file
> In file included from test/gal_test.h:38,
> from date_time/gal_tdatetime.c:45:
> test/gal_test_start.h:93:3: warning: no newline at end of file
> In file included from test/gal_test.h:39,
> from date_time/gal_tdatetime.c:45:
> test/gal_test_stop.h:82:3: warning: no newline at end of file
> In file included from test/gal_test.h:40,
> from date_time/gal_tdatetime.c:45:
> test/gal_vcv.h:92:3: warning: no newline at end of file
> In file included from test/gal_test.h:41,
> from date_time/gal_tdatetime.c:45:
> test/gal_vdv.h:94:3: warning: no newline at end of file
> In file included from test/gal_test.h:42,
> from date_time/gal_tdatetime.c:45:
> test/gal_viv.h:92:3: warning: no newline at end of file
> In file included from test/gal_test.h:43,
> from date_time/gal_tdatetime.c:45:
> test/gal_vsv.h:92:3: warning: no newline at end of file
> In file included from date_time/gal_tdatetime.c:45:
> test/gal_test.h:70:3: warning: no newline at end of file
> date_time/gal_tdatetime.c:110:3: warning: no newline at end of file
> /bin/sh ./libtool --tag=CC --mode=link gcc -g -O2 -o gal_tdatetime
> gal_tdatetime.o libgal_test.la libgal.la libtool: link: gcc -g -O2 -o
> .libs/gal_tdatetime gal_tdatetime.o ./.libs/libgal_test.a
> ./.libs/libgal.so -Wl,-rpath -Wl,/usr/local/lib ./.libs/libgal.so:
> undefined reference to `sqrt'
> ./.libs/libgal.so: undefined reference to `floor'
> ./.libs/libgal.so: undefined reference to `fmod'
> ./.libs/libgal.so: undefined reference to `cos'
> ./.libs/libgal.so: undefined reference to `sin'
> ./.libs/libgal.so: undefined reference to `atan2'
> ./.libs/libgal.so: undefined reference to `pow'
> ./.libs/libgal.so: undefined reference to `atan'
> collect2: ld returned 1 exit status
> make[2]: *** [gal_tdatetime] Error 1
> make[2]: Leaving directory `/home/vk2tfg/libgal-0.1.0'
> make[1]: *** [check-am] Error 2
> make[1]: Leaving directory `/home/vk2tfg/libgal-0.1.0'
> make: *** [check-recursive] Error 1
> hppa:/home/vk2tfg/libgal-0.1.0#
------------------------------
Message: 2
Date: Tue, 18 Mar 2008 17:51:48 -0400
From: "John Marranca, Jr" <KB2HSH(AT)amsat.org>
Subject: [amsat-bb] Re: Courteous AO-51 Operation
To: amsat-bb(AT)amsat.org
Message-ID:
<8edcdb130803181451t13fb7796q84d9bb235d39e265(AT)mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Good Afternoon, all...
Robert, I think the main point that Ben is trying to make with these
"friendly suggestions" is civility. Love the single-channel FM satellites
or not, they are a fact of life throughout AMSAT. And AO-51 is arguably
the
worst as far as manners and good operating procedures are concerned. This
doesn't mean that it doesn't happen on other single-channel birds.
Consider this: You are trying to give a demo to a group that's interested
in satellite-based Amateur Radio. You do your best to convey ease of use,
technical skill and accomplishment, and the fact that satellite hams in
general are a great bunch of guys...etc etc etc. Then, you tune into
AO-51
for the demo...and you hear "the Zoo".
Some of it is just common sense...like using headphones...not using too
much
power (we ALL know at least one person that does), but Ben worded some of
the suggestions to try to "level the field", and help to make it more fair
for everyone.
As our fleet gets older, and more satellites become non-operational...and
more Amateurs enter the ranks, the FM satellites will undoubtedly get
worse,
more crowded, etc. As this becomes reality, there are 3 routes to take to
solve the "problem": A) Move to the Linear Satellites...B) Build more FM
Satellites (which some will absolutely HATE)...or C) Learn to become a
more
efficient operator and get along with each other.
Sadly, though...I have a feeling that this will reignite the Linear Vs. FM
debate.
John KB2HSH
--
_______________________________
John Marranca, Jr
PBX Technician/Shop Steward CWA Local 1122
BN Systems, Inc
Orchard Park, NY
(716)972-2006
------------------------------
Message: 3
Date: Tue, 18 Mar 2008 16:20:25 -0600
From: Alvaro de Leon Romo <xe2at(AT)hotmail.com>
Subject: [amsat-bb] KD6PAG grid ??
To: <amsat-bb(AT)amsat.org>
Message-ID: <BAY108-W25C39283E1C94537A71095F5060(AT)phx.gbl>
Content-Type: text/plain; charset="iso-8859-1"
Who heard KD6PAG in the AO27 at 2130 pass ???
He was in CN93 ???
I had some problem here and lost reception :-(
Al XE2AT
_________________________________________________________________
T?, como Pedro, gana tiempo buscando en Live.com
http://www.live.com
------------------------------
Message: 4
Date: Tue, 18 Mar 2008 16:10:09 -0400
From: Luc Leblanc <lucleblanc6(AT)videotron.ca>
Subject: [amsat-bb] HQ8R Swan islands contact
To: amsat-bb(AT)AMSAT.Org
Message-ID: <47DFE961.2779.163B14F(AT)lucleblanc6.videotron.ca>
Content-Type: text/plain; charset=US-ASCII
I just got them (HQ8R) on AO-27 1553 EST pass quick exchange and they
where
loud and clear between a LOT of QSO'S and QRM. They will surely
need a more quiet satellite in a way to give them a chance to work as many
station possible. If they have any internet access i want to
know if they log me as i log them in FN36.
"-"
Luc Leblanc VE2DWE
Skype VE2DWE
www.qsl.net/ve2dwe
WAC BASIC CW PHONE SATELLITE
------------------------------
Message: 5
Date: Tue, 18 Mar 2008 16:15:45 -0700 (PDT)
From: WILLIAMS MICHAEL <k9qho6762(AT)sbcglobal.net>
Subject: [amsat-bb] Re: Help with rotor control and GS-232B
To: amsat-bb(AT)amsat.org
Message-ID: <180886.45449.qm(AT)web82709.mail.mud.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1
WILLIAMS MICHAEL <k9qho6762(AT)sbcglobal.net> wrote: Download the trail
version of PCSAT32 from the AMSAT website. It is just like the purchased
version except that you have to but your logitude and latitude of your QTH
when starting the program. That is the only difference.
GL
Mike
K9QHO
"N3UJJ (Scott Gillis)" <N3UJJ(AT)N3UJJ.COM> wrote:
Mike,
I went to the AMSAT Store to purchase PCSAT32 and it's CLOSED until
further
notice (sigh)
To buy anything, you have to call "Martha", but she is out of town until
the
25th.
I have heard GREAT things about PCSAT32, and in the couple times I've
played
with it I haven't had a lot of time to dig deeply into it.
You are right that NOVA does not control Doppler (as far as I can see).
I have played quite a bit with Ham Radio Deluxe, and I think it's a GREAT
program.
I wonder if anyone has got it to work with WiSP & the GS-232B?
Scott Gillis N3UJJ
My Current Location
My Amateur Weather Station
-----Original Message-----
From: amsat-bb-bounces(AT)amsat.org [mailto:amsat-bb-bounces(AT)amsat.org]
On
Behalf Of WILLIAMS MICHAEL
Sent: Tuesday, March 18, 2008 09:48
To: amsat-bb(AT)amsat.org
Subject: [amsat-bb] Re: Help with rotor control and GS-232B
The last I knew, Nova didn't control Doppler by itself only rotor control.
Somebody correct me if I'm wrong about this.
SatPC32 is the software to go with for both rotor and Doppler control.
Somebody out there should have a 910 set up with SatPC32!
SatPC32 is somewhat hard to get going and operate but runs really well
once
you get used to it.
Look in your 910 manual and see if there is an display indicator that
comes
on when you establish communications between the radio and the PC. This
might
tell you if you are successful in communicating with the rig.
If I can be any help please email. I'm using an FT-847, but I have a
detailed setup procedure around here somewhere.
Please let us know if you are having any success.
Mike
K9QHO
AMSAT 33589
---------------------------------------------------------------------------
-
------------------------------------------------
Hi Scott,
I am using the GS-232B/G-5500 with SatPC32 (Yaesu_GS-232 rotor
selection)
and a Kenwood TS-2000X and it works very well. I haven't tried it with
Nova.
SatPC32 does have a radio selection for the 910H so I presume SatPC32
would
control both Doppler and your rotor just fine. You could download the
trial
version (http://www.dk1tb.de/satpcsetup_a.ZIP) and give it a try. If you
are a
member of AMSAT then it would only be $45 to register the application.
SatPC32 is a little complex at first; however, if you spend some time to
get
comfortable with it, I am sure you will like it.
I hope you get everything working.
73 Jeff - K7WIN
------------------------------
Message: 6
Date: Tue, 18 Mar 2008 18:17:42 -0500
From: "Alan P. Biddle" <APBIDDLE(AT)UNITED.NET>
Subject: [amsat-bb] Arthur C. Clarke, RIP
To: "AMSAT-BB" <amsat-bb(AT)amsat.org>
Message-ID: <000101c8894e$44c03240$6501a8c0(AT)WA4SCA>
Content-Type: text/plain; charset="us-ascii"
Sir Arthur passed away at the age of 90, and is usually credited with
inventing the idea of communications satellites.
http://tinyurl.com/3bhykr
Alan
WA4SCA
------------------------------
Message: 7
Date: Tue, 18 Mar 2008 19:26:07 -0400
From: "Stargate" <stargatesg1(AT)verizon.net>
Subject: [amsat-bb] looking for N2BX, Paul Trush
To: "Amsat-Bb" <amsat-bb(AT)amsat.org>
Message-ID: <HLENIILIDNGDDDJIDEMFEENIFIAA.stargatesg1(AT)verizon.net>
Content-Type: text/plain; charset=iso-8859-1
If anyone has an email contact for Paul Trush (N2BX), please have him
contact me via my email address.
Thanks for any help,
73's
RoD
KD0XX
------------------------------
Message: 8
Date: Tue, 18 Mar 2008 23:27:51 +0000 (GMT)
From: Trevor <m5aka(AT)yahoo.co.uk>
Subject: [amsat-bb] Writer Arthur C Clarke dies at 90
To: AMSAT BB <amsat-bb(AT)amsat.org>
Message-ID: <531324.27472.qm(AT)web27209.mail.ukl.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1
Writer Arthur C Clarke dies at 90
British science fiction writer Sir Arthur C Clarke has died in Sri Lanka
at
the
age of 90.
The following is from an item in Amateur Radio Newsline? Report 1584 -
December
21, 2007 commerating his 90th birthday:
For years Arthur C. Clarke, has held honorary AMSAT membership number
2001.
And, needless to say that he is best known for having penned the novel
2001: A
Space Odyssey. That book was adapted into a motion picture directed by
Stanley
Kubrick. The film won an OSCAR for Best Special Visual Effects.
But Arthur C. Clarke's most important contribution may not have been his
science fiction writings. Rather, he is credited with development of the
concept that lead to the development of the geostationary satellite as
telecommunications relays in space.
Clarke first proposed this idea way back in October 1945 in a paper titled
"Extra-Terrestrial Relays - Can Rocket Stations Give Worldwide Radio
Coverage?"
The article was published in United Kingdom publication Wireless World
magazine. The technology he outlined became the basis for most modern
communications into the 21st century. In this clip from a 1992 interview
with
the late Roy Neal, K6DUE, Clarke told how the idea came about:
Clarke: "At the time I was working on a very complex RADAR. It was the
first
Ground Approach Control flight management system which has about a
thousand
valves or what you call tubes. At least one would blow out every day , so
I
couldn't imagine that sort of equipment operating without mechanics on the
spot
to change them and give it service. So I assumed that these relay stations
would be manned space stations, like the Freedom Space Station but at a
lower
altitude."
"What I didn't envision was the incredible revolution in solid state
electronics: First the transistor and later the micro-chip. And I have
sometimes said though not very seriously that the invention of the
transistor
was a major catastrophe for astronautics because if we hadn't invented the
transistor we would have had to build manned space stations and we would
have
been half way to Mars by now (giggle)."
For his effort, the geostationary satellite orbit known as the Clarke Belt
was
named in his honor.
Back to his literary career, in 1982 Arthur C. Clarke continued the
Odyssey
epic with a sequel titled "2010: Odyssey Two." This novel dealing with
space
during the Cold War was made into a film titled "2010: The Year We Make
Contact." It was directed by Peter Hyams for release in 1984 but was not
considered to be as revolutionary or artistic as was 2001.
But that was not the end of Clarke's Odyssey writings. In 1988 he penned
the
lesser known "2061: Odyssey Three" followed by "3001: The Final Odyssey"
in
1997. To date, neither of these latter to Odyssey stories have made it to
the
big screen.
In all, Arthur C. Clarke has penned some 33 novels and another 29
non-fiction
books and stories since he began writing them in 1950. His latest titled
"Firstborn" was published this past year.
BBC News Report
http://news.bbc.co.uk/1/hi/uk/7304004.stm
----
___________________________________________________________
Rise to the challenge for Sport Relief with Yahoo! For Good
http://uk.promotions.yahoo.com/forgood/
------------------------------
Message: 9
Date: Tue, 18 Mar 2008 16:34:52 -0700
From: Rick Mann <rmann(AT)latencyzero.com>
Subject: [amsat-bb] [OT] Is it possible to directly receive TDRSS
Ku-band TV?
To: AMSAT-BB Org <amsat-bb(AT)amsat.org>
Message-ID: <5076869B-705D-467C-B20E-0A15E7841EC8(AT)latencyzero.com>
Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
Sorry for the OT question, but I figure there's a lot of expertise on
this list.
I was just curious...is it possible to directly receive TDRSS Ku-band
TV transmissions? I don't know what Ku-band gear entails, and I don't
know if that stuff is encrypted or otherwise only available to NASA,
but I thought it might be cool to get.
TIA,
--
Rick
------------------------------
Message: 10
Date: Tue, 18 Mar 2008 16:44:26 -0700 (PDT)
From: Jim Jerzycke <kq6ea(AT)pacbell.net>
Subject: [amsat-bb] Re: Arthur C. Clarke, RIP
To: APBIDDLE(AT)MAILAPS.ORG, AMSAT-BB <amsat-bb(AT)amsat.org>
Message-ID: <163749.49611.qm(AT)web80610.mail.mud.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1
I just heard that. The sad thing is, I'm out here in
the Pacific right now to launch DirecTV-11, and HALF
the people on our launch team never heard of him!
R.I.P., Sir Arthur.....
73, Jim KQ6EA
--- "Alan P. Biddle" <APBIDDLE(AT)UNITED.NET> wrote:
> Sir Arthur passed away at the age of 90, and is
> usually credited with
> inventing the idea of communications satellites.
>
> http://tinyurl.com/3bhykr
>
>
> Alan
> WA4SCA
>
>
>
> _______________________________________________
> 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: 11
Date: Tue, 18 Mar 2008 16:49:06 -0700
From: "Ken Swaggart" <k.swaggart(AT)charter.net>
Subject: [amsat-bb] Replacement KLM 2M-14C matching harness coax?
To: "AMSAT-BB" <amsat-bb(AT)amsat.org>
Message-ID: <030501c88952$a7dc85f0$1200a8c0(AT)guest>
Content-Type: text/plain; format=flowed; charset="iso-8859-1";
reply-type=original
It's time to rebuild my Oscar 10 vintage KLM 2M-14C matching harness.
There
are no markings on the original harness but it has teflon insulation and I
assume it is 75 Ohm. Anyone have the replacement info? I'd prefer to use
teflon cable. The antenna manual doesn't describe the matching harness.
Tnx,
Ken, W7KKE
------------------------------
Message: 12
Date: Tue, 18 Mar 2008 17:59:33 -0600
From: Nate Duehr <nate(AT)natetech.com>
Subject: [amsat-bb] orbiting "disco ball" bounces back single photons
To: "'AMSAT-BB'" <amsat-bb(AT)amsat.org>
Message-ID: <47E05765.2040607(AT)natetech.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Interesting for satellite fans...
http://arxivblog.com/?p=317
One photon at a time... might take a while to send CQ...
(Yes, that's a joke... for the humor-impaired.)
Nate WY0X
------------------------------
Message: 13
Date: Tue, 18 Mar 2008 21:47:37 -0400
From: Arthur Feller <afeller(AT)ieee.org>
Subject: [amsat-bb] Arthur C. Clarke, SK
To: amsat-bb(AT)amsat.org, amsat-edu(AT)amsat.org
Message-ID: <0JXY007AKFNVM3Q0(AT)mta3.srv.hcvlny.cv.net>
Content-Type: text/plain; charset=us-ascii; format=flowed
See:
http://www.washingtonpost.com/wp-
dyn/content/article/2008/03/18/AR2008031802346.html?hpid=topnews
Also:
http://www.nytimes.com/2008/03/19/books/19clarke.html?_r=1&hp&oref=slogin
73, art.....
W4ART/2 Highland Park, NJ
Life is short. Be swift to love! Make haste to be kind!
- Henri Frederic Amiel, philosopher and writer (1821-1881)
------------------------------
Message: 14
Date: Tue, 18 Mar 2008 19:45:08 -0700 (PDT)
From: Jim Jerzycke <kq6ea(AT)pacbell.net>
Subject: [amsat-bb] Re: Arthur C. Clarke, RIP
To: Rick Mann <rmann(AT)latencyzero.com>, AMSAT-BB <amsat-bb(AT)amsat.org>
Message-ID: <73114.83791.qm(AT)web80610.mail.mud.yahoo.com>
Content-Type: text/plain; charset=iso-8859-1
I work for Boeing on the Sea Launch program. We're on
schedule to launch tomorrow (Wednesday) at 3:48pm,
Pacific time, 22:48 UTC. There will be a live webcast
through the company website at:
http://www.sea-launch.com/
It will be carried live on DirecTV channel 573,
starting at 3:30pm.
There's also a Mission Album you can view if you click
on "Current Launch" on the main page.
73, Jim KQ6EA
--- Rick Mann <rmann(AT)latencyzero.com> wrote:
>
> On Mar 18, 2008, at 4:44 PM, Jim Jerzycke wrote:
> > I just heard that. The sad thing is, I'm out here
> in
> > the Pacific right now to launch DirecTV-11, and
> HALF
> > the people on our launch team never heard of him!
> > R.I.P., Sir Arthur.....
>
>
> Despite the sad news about Clarke, I'm very excited
> about what you
> casually mention: you're launching a rocket! How
> very cool.
>
> Is there some place I can go to find out more about
> the launch? Are
> you posting pictures to a blog, or anything like
> that?
>
>
> --
> Rick
>
>
------------------------------
Message: 15
Date: Wed, 19 Mar 2008 00:05:12 -0400
From: N6TX <n6tx(AT)amsat.org>
Subject: [amsat-bb] Re: [amsat-edu] Arthur C. Clarke, SK
To: Arthur Feller <afeller(AT)ieee.org>
Cc: amsat-bb(AT)amsat.org, amsat-edu(AT)amsat.org
Message-ID: <47E090F8.6050605(AT)amsat.org>
Content-Type: text/plain; charset=us-ascii; format=flowed
My personal remembrance is now online at
<http://www.setileague.org/admin/acc-obit.htm>
Saying kaddish,
Paul
--
Prof. H. Paul Shuch, N6TX
former AMSAT Director of Education
n6tx(AT)amsat.org www.qsl.net/n6tx
Grid Square FN11lh
------------------------------
Message: 16
Date: Tue, 18 Mar 2008 21:59:43 -0700
From: "John Kopala" <jkopala(AT)gmail.com>
Subject: [amsat-bb] Re: Help with rotor control and GS-232B
To: "AMSAT-BB" <amsat-bb(AT)amsat.org>, <sgillis(AT)toyotaofwaldorf.com>
Message-ID: <06ad01c8897e$0d3b3dd0$6701a8c0(AT)sierrap4dual>
Content-Type: text/plain; charset="iso-8859-1"
Hi Scott,
Jeff, K7WIN is controller the Rotor using the GS-232B interface.
Well, this is the second part of the puzzle. I'm doing doppler control of
an IC-910H using SATPC32 and it works great. If you have trouble setting
it
up, get back to me and I'll try to help. It does have a somewhat steep
learning curve, but it doesn't take long to get over that.
John, N7JK
-----Original Message-----
Message: 4
Date: Mon, 17 Mar 2008 16:14:16 -0400
From: "Scott Gillis" <sgillis(AT)toyotaofwaldorf.com>
To: amsat-bb(AT)amsat.org
Subject: [amsat-bb] Help with rotor control and GS-232B
Hope I can get some good feedback on this issue.
I bought a GS-232B and "assumed" (sigh) that it would be backwards
compatible (meaning anything written for any GS-232 would work)
I don't seem so lucky (or at least it seams that way with NOVA for
Windows).
I'm looking for suggestions on what software package (or combination) I
need to control my ICOM 910H and my GS-232B.
Any and all suggestions would be greatly appreciated
73
Scott Gillis N3UJJ
My Current Location <" target=_blank>http://location.n3ujj.com/>
My Amateur Weather Station <" target=_blank>http://weather.n3ujj.com/>
------------------------------
Message: 17
Date: Wed, 19 Mar 2008 01:29:43 -0400
From: Eric Rosenberg <wd3q(AT)starpower.net>
Subject: [amsat-bb] Arthur C. Clarke Dies at Age 90
To: AMSAT-BB <amsat-bb(AT)amsat.org>, PVRC Reflector
<pvrc(AT)mailman.qth.net>
Message-ID: <47E0A4C7.5000203(AT)starpower.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
From the Washington Post
-----------------------------
Arthur C. Clarke; Sci-Fi Writer Foresaw Mankind's Possibilities
By Patricia Sullivan
Washington Post Staff Writer
Wednesday, March 19, 2008; B07
Arthur C. Clarke, 90, the world-famous science-fiction writer, futurist
and unofficial poet laureate of the space age, died of a respiratory
ailment March 18 at his home in Colombo, Sri Lanka.
Mr. Clarke co-wrote, with director Stanley Kubrick, the screenplay for
"2001: A Space Odyssey," which is regarded by many as one of the most
important science fiction films made. A prolific writer, with more than
100 published books, he was praised for his ability to foresee the
possibilities of human innovation and explain them to non-scientific
readers.
The most famous example is from 1945, when he first proposed the idea of
communications satellites that could be based in geostationary orbits,
which keep satellites in a fixed position relative to the ground.
Some scoffed, but the idea was proved almost a generation later with the
launch of Early Bird, the first of the commercial satellites that
provide global communications networks for telephone, television and
high-speed digital communication. The orbit is now named Clarke Orbit by
the International Astronomical Union.
"He had influenced the world in the best way possible," writer Ray
Bradbury said in Neil McAleer's 1992 book "Arthur C. Clarke: The
Authorized Biography." "Arthur's ideas have sent silent engines into
space to speak in tongues. His fabulous communications satellite
ricocheted about in his head long before it leaped over the mountains
and flatlands of the Earth."
In addition to his books, he wrote more than 1,000 short stories and
essays. One of his short stories, "Dial F for Frankenstein" (1964),
inspired British computer scientist Tim Berners-Lee to invent the World
Wide Web in 1989.
Mr. Clarke also popularized the idea of a space elevator as an
energy-efficient alternative to rockets. Conceived by a Russian engineer
in 1960 and re-invented at least four times in the next decades, Mr.
Clarke's inclusion of the idea in a 1979 novel brought it to popular
attention and helped launch a new field of study. He told New Scientist
magazine last year that it would be built "50 years after everyone stops
laughing."
But it was his collaboration with Kubrick in the 1968 film that made him
internationally famous. The screenplay for "2001: A Space Odyssey" was
based on Mr. Clarke's 1951 short story "The Sentinel," and Mr. Clarke
simultaneously wrote the companion novel, which was released three
months after the film and was believed by many to be a more detailed
explanation of the ideas in the film.
Mr. Clarke's work inspired the names of spacecraft, an asteroid and a
species of dinosaur. He joined American broadcaster Walter Cronkite as a
commentator on the Apollo moonshots in the late 1960s. Two television
series in the 1980s spread his ideas around the world.
He was knighted in 1998, nominated for the Nobel Peace Prize in 1994 and
received the Franklin Institute gold medal, the United Nations
Educational, Scientific and Cultural Organization-Kalinga Prize and
other honors.
Mr. Clarke, a resident of Sri Lanka since 1956, worked with Jacques
Cousteau and others to help perfect scuba equipment. He moved to the
country, then known as Ceylon, to open a dive shop and explore the
undersea world. Disabled by post-polio syndrome, the lingering effects
of a disease that had paralyzed him for two months in 1959, Mr. Clarke
said diving was as close as he could get to the weightless feeling of
space.
"I'm perfectly operational underwater," he once said.
His dive shop was destroyed in the 2004 tsunami.
Born Dec. 17, 1917, in Minehead, Somerset, England, he was the son of a
postal service engineer turned farmer and a post office telegrapher. He
became addicted to science fiction at 11.
In 1936, he moved to London and joined the British Interplanetary
Society and began writing science fiction. After enlisting in the Royal
Air Force in 1941, he became a radar instructor and participated in the
development of ground-controlled landings of aircraft under
zero-visibility conditions. That experience proved the inspiration for
his only non-science-fiction novel, "Glide Path."
It is also where, in 1945, he wrote an RAF memo about satellites. He
later revised it and submitted it as "Extra-Terrestrial Relays" to
Wireless World, which almost rejected it as too far-fetched. He was
wrong about some things: He expected that three satellites would take
care of the world's communication needs and that each would require a
crew in residence.
After World War II, Mr. Clarke obtained a bachelor of science degree in
physics and mathematics at King's College, London.
In 1954, Mr. Clarke wrote to Harry Wexler, then chief of the Scientific
Services Division at the U.S. Weather Bureau, about satellite
applications for weather forecasting. From these discussions, a new
branch of meteorology was born.
Mr. Clarke's marriage to Marilyn Mayfield ended in divorce. Survivors
include a brother and sister, both of whom live in England.
According to a news release from the Arthur C. Clarke Foundation, Mr.
Clarke reviewed the final manuscript of his latest science fiction
novel, "The Last Theorem," a few days ago. It is scheduled to be
published later this year.
Although he rarely left Sri Lanka, he kept in touch with the rest of the
world by using the satellite communication he predicted so long ago. He
told the Associated Press that he didn't regret never going into space
because he had arranged to have the DNA from his hair sent into orbit.
"Some day, some super civilization may encounter this relic from the
vanished species and I may exist in another time," he said.
In a 90th birthday video recorded in December, Mr. Clarke said he had
only three last wishes: That someone find evidence of extraterrestrial
life; that the world adopt clean energy sources; and that an end be
found to the long civil war in Sri Lanka.
"I'm sometimes asked how I would like to be remembered. I've had a
diverse career as a writer, underwater explorer, space promoter and
science populariser," he said. "Of all these, I want to be remembered
most as a writer -- one who entertained readers, and, hopefully,
stretched their imagination as well."
------------------------------
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End of AMSAT-BB Digest, Vol 3, Issue 143
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