Date: Tue, 9 Nov 93 04:30:42 PST
From: Ham-Space Mailing List and Newsgroup <ham-space@ucsd.edu>
Errors-To: Ham-Space-Errors@UCSD.Edu
Reply-To: Ham-Space@UCSD.Edu
Precedence: Bulk
Subject: Ham-Space Digest V93 #80
To: Ham-Space
Ham-Space Digest Tue, 9 Nov 93 Volume 93 : Issue 80
Today's Topics:
ANS-310 BULLETINS
APT-Satellites: Report NOV 06, 1993
Sat access to Internet ? (2 msgs)
UHF All-mode Rig Wanted
Send Replies or notes for publication to: <Ham-Space@UCSD.Edu>
Send subscription requests to: <Ham-Space-REQUEST@UCSD.Edu>
Problems you can't solve otherwise to brian@ucsd.edu.
Archives of past issues of the Ham-Space Digest are available
(by FTP only) from UCSD.Edu in directory "mailarchives/ham-space".
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: Sun, 7 Nov 1993 10:20:50 MST
From: pacbell.com!barrnet.net!sgiblab!swrinde!gatech!europa.eng.gtefsd.com!library.ucla.edu!news.mic.ucla.edu!unixg.ubc.ca!nntp.cs.ubc.ca!alberta!nebulus!ve6mgs!usenet@network.ucsd.edu
Subject: ANS-310 BULLETINS
To: ham-space@ucsd.edu
SB SAT @ AMSAT $ANS-310.01
DOVE-OSCAR-17 RETURNS TO 2M!
HR AMSAT NEWS SERVICE BULLETIN 310.01 FROM AMSAT HQ
SILVER SPRING, MD NOVEMBER 6, 1993
TO ALL RADIO AMATEURS BT
BID: $ANS-310.01
DOVE-OSCAR-17 (DO-17) Returns To 2M: DOVE RECOVERY BEGINS!
DOVE is currently up and running on 2M. It is sending normal ASCII tele-
metry and a short text bulletins on 145.825 MHz. A very quick look at
telemetry indicates the spacecraft is basically healthy. The DOVE Recovery
Team of Bob Diersing (N5HAD), Bill McCaa (K0RZ), and Jim White (WD0E) have
been working very intensively for about 10 days to create and test new
software that allowed automated software loading via 2M in a half-duplex
mode. This replaces the "ear-ack on S-Band" method N4HY had used in the
past that was so difficult as to be a barrier to recovery.
WD0E and the DOVE Recovery Team would like to receive telemetry reports.
Please send them to vk7zbx@KO-23, @AO-16 or on INTERNET to vk7zbx@amsat.org
or to wd0e@amsat.org, or to the CompuServe address of 71477,546. The most
recent version of TLMDCII (3-8-92) will decode and record DOVE telemetry
very nicely. For more information about obtaining a copy of the TLMDC
program, contact AMSAT-NA HQs at (301) 589-6062. After the DOVE Recovery
Team is sure the satellite is stable in this configuration and the RF
transmitter power targets are established, the next step will be to load up
through PHTX and test the voice module. Depending on the condition of the
spacecraft and other issues, this could take several weeks.
WD0E would like to express sincere thanks to Bob Diersing for all of his
hard work creating a RAM loader, and Bill McCaa for the many passes of S-
band and two meter receive he provided (often late into the night). It
could not have been done without their enthusiastic efforts. Also, thanks
to Harold Price (NK6K) for providing the the developement system hardware,
software, and a good deal of coaching. His contributions were invaluable.
Given a reasonably healthy satellite, WD0E is confident we can make DOVE
talk as he described at the AMSAT-NA Space Symposium in Dallas a few weeks
ago.
[The AMSAT News Service (ANS) would like to thank Jim White (WD0E) for this
bulletin item. If you would like to send DOVE telemetry to Jim, again, his
INTERNET address is wd0e@amsat.org and his CompuServe address is 71477,546.]
/EX
SB SAT @ AMSAT $ANS-310.02
ITAMSAT-OSCAR-26 STATUS REPORT
HR AMSAT NEWS SERVICE BULLETIN 310.02 FROM AMSAT HQ
SILVER SPRING, MD NOVEMBER 6, 1993
TO ALL RADIO AMATEURS BT
BID: $ANS-310.02
IW3QOK Provides An Update On ITAMSAT-OSCAR-26 (IO-26)
First of all IW3QOK wants to apologize to all those who have sent their
status reports and telemetry data about IO-26 satellite to him without
having had any response come back from him. IW3QOK reports that he has not
enough time to read all the messages to answer each individually, nor to
follow the all the discussions concerning IO-26. For those who have sent
in these telemetry and status reprots to IW3QOK, he notes that he has
found them to be quite invaluable and they contribute greatly to making
IO-26 an even more interesting and useful satellite from the user's point
of view.
The telemetry data received so far shows that all systems are working
properly and that IO-26 is presently in a good health. The Bulletin Board
System (BBS) has been opened, as the most of you already know, and the
number of users of IO-26 is growing rapidly as each day passes.
It is well known that IO-26 is presently in a state of low power con-
sumption, and consequently the RF power output from the transmitter is
about 250 mW. This is NOT a problem, but has been implemented because of
battery considerations and also because its signal is already very good and
quite readable. Two days ago an Italian command station, in Milano,
increased the RF output power of the 70cm transmiter to its maximum value
(approx. 4W) as a test for a few minutes. Everything worked fine during
this test. The Battery Charge Regualator (BCR) is working well and the
solar panels are charging the batteries regularly. Recently IW3QOK
received some questions about why the array voltage was so low (around 11V)
with respect to the other MICROSATs. The answer is very simple: IO-26 uses
highly efficient solar array panels that have a lower voltage than those
used on the other MICROSATs so it is not necessary for you to worry about
this issue. Another question which IW3QOK receives many inquiries about is
the very high value presented by the Error Detection And Correction (EDAC)
telemetry counter. His theory is that there must be a little "bug" in the
telemetry sofware and ITAMSAT's main working group (in Milano) is already
working to solve this problem.
>From all the very interesting telemetry data IW3QOK has received from many
countries, it has been possible to understand that the IO-26's spacecraft
attitude and to see that its motion is quite predictable. The results will
be presented soon in a readable form. All IO-26 users are invited to down-
load the Whole Orbit Data (WOD) and analyze it. The downloading of this WOD
file is simple and one can easily deduce the spacecraft's motion by examin-
ing carefully the telemetry items related to the solar array currents or
voltages using any common spreadsheet program, such as, Excel, Lotus 123,
or QuattroPro. By graphing these telemetry items, one can easily see how
these currents or voltages behave as the spacecraft attitude rotates as
goes into and out of eclipses.
Again IW3QOK would like thank all those who have sent him telemetry and it
is his hope that you will continue to enjoy using IO-26.
[The AMSAT News Service (ANS) would like to thank IW3QOK for this bulletin
item.]
/EX
SB SAT @ AMSAT $ANS-310.03
AMSAT OPS NET SCHEDULE
HR AMSAT NEWS SERVICE BULLETIN 310.03 FROM AMSAT HQ
SILVER SPRING, MD NOVEMBER 6, 1993
TO ALL RADIO AMATEURS BT
BID: $ANS-310.03
Current AMSAT Operations Net Schedule For AO-13
AMSAT Operations Nets are planned for the following times. Mode-B Nets
are conducted on AO-13 on a downlink frequency of 145.950 MHz. If, at the
start of the OPS Net, the frequency of 145.950 MHz is being used for a QSO,
OPS Net enthusiasts are asked to move to the alternate frequency of 145.955
MHz.
Date UTC Mode Phs NCS Alt NCS
13-Nov-93 1230 B 146 VE2LVC W5IU
28-Nov-93 0230 B 39 WJ9F VE2LVC
12-Dec-93 0435 B 180 W9ODI WB6LLO
Any stations with information on current events would be most welcomed.
Also, those interested in discussing technical issues or who have questions
about any particular aspect of OSCAR statellite operations, are encouraged
to join the OPS Nets. In the unlikely event that either the Net Control
Station (NCS) or the alternate do not call on frequency, any participant is
invited to act as the NCS.
**************************************
Slow Scan Television on AO-13
SSTV sessions will be held on immediately after the OPS Nets a downlink
on a Mode-B downlink frequency 145.960 MHz.
/EX
SB SAT @ AMSAT $ANS-310.04
WEEKLY OSCAR STATUS REPORTS
HR AMSAT NEWS SERVICE BULLETIN 310.04 FROM AMSAT HQ
SILVER SPRING, MD NOVEMBER 6, 1993
TO ALL RADIO AMATEURS BT
BID: $ANS-310.04
Weekly OSCAR Status Reports: 06-NOV-93
AO-13: Current Transponder Operating Schedule:
M QST *** AO-13 TRANSPONDER SCHEDULE *** 1993 Oct 25-Nov 15
Mode-B : MA 0 to MA 130 !
Mode-BS : MA 130 to MA 180 !
Mode-S : MA 180 to MA 205 !<- S transponder; B trsp. is OFF
Mode-S : MA 205 to MA 210 !<- S beacon only
Mode-BS : MA 210 to MA 226 ! Blon/Blat 210/0
Omnis : MA 240 to MA 80 ! Move to attitude 240/0, Nov 15
Please don't uplink to Mode-B between MA 180-205 as this interferes with
Mode-S transponder operations. Continuous up-to-date information about
AO-13 operations is always available on the beacons at 145.812 MHz and
2400.646 MHz in CW, RTTY and 400 bps PSK. Also, these bulletins are also
posted to INTERNET, ANS bulletins, Packet, PACSATs, as well as many inter-
national newsletters. In additional notes about AO-13, G3RUH reports the
following: the partial solar eclipse of 13-NOV-93 [Sat] (visible from
Antarctica) also affects AO-13. AO-13 will see the Moon eclipse the Sun
from 13:33 - 15:13 UTC with a maximum of 89% obscuration at 14:16 UTC. This
will be Orbit 4148, with MA 171-208. The encounter will be "visible" on
the spacecraft telemetry to stations in the entire Pacific area, Australia
and Japan, and the US west coast. US stations east of Salt Lake City will
have LOS during the encounter, seeing less the further east they are. AO-
13 is not in view of Europe at this time. It will not be necessary to shut
down the transponders on this occasion because Mode-S is ON, and consumes
little power. The 145 MHz telemetry beacon will be available up to MA 205
and will continue on S-band. The Whole Orbit Data (WOD) collection facil-
ity will dwell on battery voltage at 1 MA intervals. On the issue of Solar
Eclipses by the sun: these commence on 07-DEC-1993 [Tue] and continue until
24-DEC-93 [Fri]. These eclipses are of course total. The maximum lasts
136 minutes, and is the longest AO-13 has ever experienced. The Mode-B
transponder will be OFF from MA 95 to 180 during this two week period. The
WOD collection facility will dwell on interesting sensor points. Anybody
requiring a specific value to be monitored should contact a command station
with details of parameter wanted, start time, and MA interval. Up to 384
samples can be taken per K-block. [G3RUH/DB2OS/VK5AGR]
DOVE: DO-17 currently sending AX.25 packet telemetry on a downlink
frequency of 145.825 MHz. [WD0HHU]
AO-16: Operating normally. [WH6I]
UO-22: Operating normally. [WH6I]
LO-19: Operating normally. [WH6I]
KO-23: Up and running. Busy as usual. [WH6I]
KO-25: File system is up but not open for uploads. It appears that the
satellite has taken an EIS image but it is not available. [WH6I]
AO-27: No information received but it is assumed that this spacecraft is
still in the testing phase. ANS will present further information when
received. [W3XO]
IO-26: Up and running with a lot of activity. The signal is weaker than
AO-16 or LO-19 but good throughput is still possible. The following
table is just a "quick-review" of the IO-26 frequencies: TXA PSK=
435.867 MHz, TXB PSK/FM=435.827 MHz, RX #1=145.875 MHz, RX #2=
145.900 MHz, RX #3=145.925 MHz, RX #4=145.950 MHz. [IK2OVV]
FO-20: The following is the transponder operating schedule for the month of
November and December:
ANALOG Mode-J Voice & CW Operations:
10-NOV-93 09:23 -TO- 11-NOV-93 07:51 UTC
17-NOV-93 07:44 -TO- 18-NOV-93 08:15 UTC
24-NOV-93 08:20 -TO- 25-NOV-93 08:38 UTC
01-DEC-93 08:43 -TO- 08-DEC-93 07:16 UTC
15-DEC-93 07:41 -TO- 22-DEC-93 08:05 UTC
Please note that that at all other times FO-20 will be in the digital BBS
mode. In December, the analog transponder and digital transponder will
each be turned-on for a week period, ALTERNATELY! For those who want to
try working FO-20 in the voice mode the following are the passband fre-
quencies of the analog transponder: Uplink passband: 145.900 MHz -->
146.000 MHz. Downlink passband: 435.900 MHz --> 435.800 MHz. The
telemetry beacon can be heard at 435.795 MHz. The analog transponder
inverts all up-linked signals. LSB on the uplink becomes USB on the
downlink. A signal in the lower portion of the uplink passband appears
in the upper portion of the downlink passband. For more information, see
the September QST, p 104. [JJ1WTK/3]
The AMSAT NEWS Service (ANS) is looking for volunteers to contribute weekly
OSCAR status reports. If you have a favorite OSCAR which you work on a
regular basis and would like to contribute to this bulletin, please send
your observations to WD0HHU at his CompuServe address of 70524,2272, on
INTERNET at wd0hhu@amsat.org, or to his local packet BBS in the Denver, CO
area, WD0HHU @ W0LJF.#NECO.CO.USA.NOAM. Also, if you find that the current
set of orbital elements are not generating the correct AOS/LOS times at
your QTH, PLEASE INCLUDE THAT INFORMATION AS WELL. The information you
provide will be of value to all OSCAR enthusiasts.
/EX
------------------------------
Date: Mon, 8 Nov 1993 08:47:47 GMT
From: agate!howland.reston.ans.net!xlink.net!gmd.de!peter.henne%gmd.de@ames.arpa
Subject: APT-Satellites: Report NOV 06, 1993
To: ham-space@ucsd.edu
Observed at station 50.7 NLat, 7.1 ELon, NOV 06, 1993
NOAA-9: APT 137.62 On
NOAA-10: APT 137.50 *OFF*
NOAA-11: APT 137.62 On
NOAA-12: APT 137.50 On
Meteor 2-21: APT 137.85 On
Meteor 3-3: APT 137.30 On
The northern hemisphere becomes more and more dim. No
IR-images from the Meteor's, Met 3-3 switches vis-APT on
over 70 deg NLat on its noon descending path, Met 2-21
starts vis-APT over 65 deg NLat on its morning descending
pass. The transmission is weak as always, but the signal
becomes better after passing the zenith and now seems to be
sightly better on passes west from the station.
NOAA-10 is off due to VHF-conflict with NOAA-12. All NOAA's
now transmit channels 3 and 4 over dark areas, channels
2 and 4 from illuminated parts of their orbits.
+------------------------------------------+
|Peter Henne (peter.henne@gmd.de) |
| (henne@gmd.de) |
|German Nat.Research Center.f.Comp.Science |
|D-5205 St.AUGUSTIN 1 |
|Fed.Rep. of Germany |
+------------------------------------------+
------------------------------
Date: Mon, 8 Nov 1993 06:38:44 GMT
From: newsflash.concordia.ca!mizar.cc.umanitoba.ca!mona.muug.mb.ca!rgallen@uunet.uu.net
Subject: Sat access to Internet ?
To: ham-space@ucsd.edu
This may be a real stupid question, and I'm not sure if this would be the
right place to ask this (if not a flame and redirect would be appreciated),
but I was wondering if it is possible for a private individual, to obtain
a bi-directional (uplink/downlink - earthstation - is this the terminology ?)
to the Internet via sattelite ?
Obviously I know nothing of the technology (if there is such a technology) so
any pointers would be greatly appreciated.
btw: Sorry if this is a FAQ, but I doubt that it is (seems like a relatively
nutzoid request to be a FAQ :-)
email: rgallen@muug.mb.ca mail: Expert Technology Corporation
QUICS: rgallen (613) 591-0934 34 Riverstone Rd.
Voice: (204) 339-8005 Winnipeg, Manitoba, Canada R2V 4B2
Fax: (204) 488-5943
------------------------------
Date: 8 Nov 93 17:32:00 GMT
From: ogicse!emory!kd4nc!ke4zv!gary@network.ucsd.edu
Subject: Sat access to Internet ?
To: ham-space@ucsd.edu
In article <1993Nov8.063844.11523@muug.mb.ca> rgallen@muug.mb.ca (Rennie Allen) writes:
>This may be a real stupid question, and I'm not sure if this would be the
>right place to ask this (if not a flame and redirect would be appreciated),
>but I was wondering if it is possible for a private individual, to obtain
>a bi-directional (uplink/downlink - earthstation - is this the terminology ?)
>to the Internet via sattelite ?
>
>Obviously I know nothing of the technology (if there is such a technology) so
>any pointers would be greatly appreciated.
The answer is yes, but. :-)
What you're looking for is SCPC Vsat access. You can get it, but it's
not cheap. It's something like $15,000 plus per minute charges. There
was at one time a Usenet Netnews distribution via a subcarrier on one
of the TVsat channels, WGN I think. I don't know if it's still active.
To get it you needed a special decoder. It was one way only.
Gary
--
Gary Coffman KE4ZV |"If 10% is good enough | gatech!wa4mei!ke4zv!gary
Destructive Testing Systems | for Jesus, it's good | uunet!rsiatl!ke4zv!gary
534 Shannon Way | enough for Uncle Sam."| emory!kd4nc!ke4zv!gary
Lawrenceville, GA 30244 | -Ray Stevens |
------------------------------
Date: 8 Nov 93 19:19:26 GMT
From: ogicse!uwm.edu!vixen.cso.uiuc.edu!cs.uiuc.edu!news1.oakland.edu!vela.acs.oakland.edu!prvalko@network.ucsd.edu
Subject: UHF All-mode Rig Wanted
To: ham-space@ucsd.edu
Hello!
Do you have a UHF all mode rig that is just gathering dust? Turn it
into cash, sell it to me :-)
I have a TS-700SP and am looking for a suitable UHF rig to get on the
satelites and do some tropo work.
thanks and 73 =paul= wb8zjl (313)974-8324
------------------------------
End of Ham-Space Digest V93 #80
******************************
******************************