Date: Fri, 10 Dec 93 04:30:55 PST
From: Ham-Space Mailing List and Newsgroup <ham-space@ucsd.edu>
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Subject: Ham-Space Digest V93 #105
To: Ham-Space
Ham-Space Digest Fri, 10 Dec 93 Volume 93 : Issue 105
Today's Topics:
Mode-A Questions
NASA STS-61 Shuttle Retransmissions
Some satellite tracking questions
Special Event Station (WA3NAN) correction
Two-Line Orbital Element Set: Space Shuttle (2 msgs)
Send Replies or notes for publication to: <Ham-Space@UCSD.Edu>
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Archives of past issues of the Ham-Space Digest are available
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We trust that readers are intelligent enough to realize that all text
herein consists of personal comments and does not represent the official
policies or positions of any party. Your mileage may vary. So there.
----------------------------------------------------------------------
Date: Thu, 9 Dec 1993 18:37:42 GMT
From: olivea!news.bu.edu!att!cbnewsc!k9jma@uunet.uu.net
Subject: Mode-A Questions
To: ham-space@ucsd.edu
In article <CHruyt.Ktx@rd1.InterLan.COM> tavernin@sun1.interlan.com (Victor Tavernini) writes:
>
>I have a couple of questions about Mode-A on RS-10/11 and RS-12/13 ...
Mode A only on RS-10 now and RS-12 listens only on 15 Meters.
>
>1. Is a 10M preamp usually necessary?
I haven't needed one with HTX-100, ICR-7000, or IC725 and a ground mounted
vertical quarter wave antenna.
>
>2. Is CW used at all on this mode ... or does SSB predominate?
I use about 95% CW, although I hear lots of SSB further up the passband.
Seems to be plenty of activity of either flavor.
>
>3. How much power do I need on the uplink and what type of antenna?
I run 90 watts input (50 output) to a SSB converted Viking 6N2 on 2 meters
and the antenna is a J mounted on the chimney. On RS12 I use the IC725
TX and a 40 meter flat top antenna. Most times 25 - 50 watts out is enough.
>
>4. Is it practical at all to key the mike, of an FM rig, to produce CW
> for the uplink?
Tried it on a Heath HW-2036 - lots of chirp, and lack of continuous tuning
is a problem. Power was marginal for the J TX antenna.
>
>Thanks,
>
>Victor Tavernini
>Racal-Datacom, Inc.
>
>tavernin@sun1.interlan.com
Good Luck, 73, and hope to see you on the birds.
--
Ed Schaefer K9JMA ham radio N97178 aviation
------------------------------
Date: Fri, 3 Dec 1993 13:49:05 GMT
From: dog.ee.lbl.gov!agate!howland.reston.ans.net!spool.mu.edu!news.cs.indiana.edu!noose.ecn.purdue.edu!mentor.cc.purdue.edu!mace.cc.purdue.edu!bap@network.ucsd.edu
Subject: NASA STS-61 Shuttle Retransmissions
To: ham-space@ucsd.edu
Last evening from West central Indiana I tried all evening
to get the GARC SSB frequencies 3860, 7185, 14295, 21395, and 28650.
3860 had a lot of stuff on it but I couldn't get it clearly. I heard
someone say "Endeavor" faintly but that was all. When I do get something
what should I expect? Continuous transmission? Also where is the GARC
transmitter and what is its power and asimuth? Is Indiana
too far away to get it?
I am using a DX-390 with 140 longwire.
Did anyone else hear anything.
I did get the launch on 5180 SSB at 427 AM EST :-)
Sincerely,
BRET A. PENNINGTON
COMPUTER TECHNICIAN
DEPARTMENT OF EARTH AND ATMOSPHERIC SCIENCES
CIVL 4252 4-0678 (317-494-0678)
PURDUE UNIVERSITY
WEST LAFAYETTE, INDIANA 47907
bap@mace.cc.purdue.edu
------------------------------
Date: 9 Dec 93 13:06:04 GMT
From: ogicse!uwm.edu!vixen.cso.uiuc.edu!uchinews!att-out!cbnewsh!wa2sff@network.ucsd.edu
Subject: Some satellite tracking questions
To: ham-space@ucsd.edu
What are people's opinions on the following:
1) What is a good satellite tracking program?
I have been evaluating traksat and I am close to sending in
my registration fee.
I have also seen ads for Instanttrack from AMSAT and Realtrak
from R Meyers. Are either of these two better and why?
Should I have more than one, if so why?
2) Are the R Meyers Communications newsletters worth
the $64 per year for the two OSCAR reports.
I do plan to join AMSAT. Is the AMSAT newsletter sufficient?
3) Are there any HW/SW plans for radio control and
antenna control besides the Kansas City Tracker?
Was the KCT described in an article somewhere?
Joe Wilkes
j.e.wilkes@att.com
------------------------------
Date: Mon, 06 Dec 1993 14:48:23 -0500
From: sgiblab!darwin.sura.net!haven.umd.edu!cs.umd.edu!skates.gsfc.nasa.gov!macgwy-mac2.gsfc.nasa.gov!user@ames.arpa
Subject: Special Event Station (WA3NAN) correction
To: ham-space@ucsd.edu
Hi,
The Goddard Amateur Radio Club will operate WA3NAN from 17:00-18:00 and
22:00-23:00 UTC (5-6 PM EST) December 6-10 to commemorate the 10th
anniversary
of Shuttle Retransmissions. Operation will be on standard GARC Shuttle
Retransmission frequencies, which are
3860, 7185, 14295, 21395 KHz and locally on 147.45 MHz (FM).
For a certificate, send QSL or SWL and a 9x12 inch SASE to
Goddard Amateur Radio Club, WA3NAN
P.O. Box 86
Greenbelt, MD 20768-0086
Please note that these times were selected as not to interfere with STS-61
coverage. Also note the time change from a previous announcement!
73
Jim Blackwell, N3KWU
Goddard High Resolution Spectrograph Science Support
Computer Sciences Corporation
NASA/GSFC Code 681.0
Greenbelt, MD 20771
------------------------------
Date: Wed, 8 Dec 1993 01:32:26 GMT
From: ucsnews!sol.ctr.columbia.edu!howland.reston.ans.net!paladin.american.edu!afterlife!blackbird.afit.af.mil!tkelso@network.ucsd.edu
Subject: Two-Line Orbital Element Set: Space Shuttle
To: ham-space@ucsd.edu
The most current orbital elements from the NORAD two-line element sets are
carried on the Celestial BBS, (513) 427-0674, and are updated daily (when
possible). Documentation and tracking software are also available on this
system. As a service to the satellite user community, the most current
elements for the current shuttle mission are provided below. The Celestial
BBS may be accessed 24 hours/day at 300, 1200, 2400, 4800, or 9600 bps using
8 data bits, 1 stop bit, no parity.
Element sets (also updated daily), shuttle elements, and some documentation
and software are also available via anonymous ftp from archive.afit.af.mil
(129.92.1.66) in the directory pub/space.
HST
1 20580U 90037B 93340.57763371 -.00010895 00000-0 -10401-2 0 3720
2 20580 28.4710 33.0526 0005228 74.4558 285.3400 14.92850041 622
STS 61
1 22917U 93075A 93340.60462947 .00010758 00000-0 10000-2 0 199
2 22917 28.4724 32.8782 0005129 72.1803 72.9843 14.92862373 635
--
Dr TS Kelso Assistant Professor of Space Operations
tkelso@afit.af.mil Air Force Institute of Technology
------------------------------
Date: Mon, 6 Dec 1993 23:12:51 GMT
From: haven.umd.edu!news.umbc.edu!europa.eng.gtefsd.com!paladin.american.edu!afterlife!blackbird.afit.af.mil!tkelso@ames.arpa
Subject: Two-Line Orbital Element Set: Space Shuttle
To: ham-space@ucsd.edu
The most current orbital elements from the NORAD two-line element sets are
carried on the Celestial BBS, (513) 427-0674, and are updated daily (when
possible). Documentation and tracking software are also available on this
system. As a service to the satellite user community, the most current
elements for the current shuttle mission are provided below. The Celestial
BBS may be accessed 24 hours/day at 300, 1200, 2400, 4800, or 9600 bps using
8 data bits, 1 stop bit, no parity.
Element sets (also updated daily), shuttle elements, and some documentation
and software are also available via anonymous ftp from archive.afit.af.mil
(129.92.1.66) in the directory pub/space.
HST
1 20580U 90037B 93339.57493170 .00028070 00000-0 26172-2 0 3718
2 20580 28.4705 39.5197 0004900 49.8661 310.3057 14.92996262 474
STS 61
1 22917U 93075A 93340.21665509 .00000271 00000-0 18280-4 0 161
2 22917 28.4699 35.3802 0005051 69.3021 146.6976 14.92803280 572
--
Dr TS Kelso Assistant Professor of Space Operations
tkelso@afit.af.mil Air Force Institute of Technology
------------------------------
End of Ham-Space Digest V93 #105
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