home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
Monster Media 1993 #2
/
Image.iso
/
ham
/
amsat205.zip
/
AMSAT205.TXT
Wrap
Text File
|
1993-08-05
|
12KB
|
261 lines
SB SAT @ AMSAT $ANS-205.01
DOVE RECOVERY EFFORTS STARTED
HR AMSAT NEWS SERVICE BULLETIN 205.01 FROM AMSAT HQ
SILVER SPRING, MD JULY 24, 1993
TO ALL RADIO AMATEURS BT
BID: $ANS-205.01
DOVE-OSCAR-17 (DO-17) Recovery Efforts Started This Week!
DOVE ground station control operator Jim White (WD0E) accomplished a major
first step in the recovery of DOVE-OSCAR-17 (DO-17). With the assistance
of Bill McCaa (K0RZ) thirty miles away, WD0E was able to send commands and
listen to the results using an phone-patch between him and K0RZ. K0RZ's
station, using a 4 ft diameter Mode-S dish and a NIR-10 DSP unit, was the
S-Band "ears" for WD0E. Using K0RZ's excellent S-Band set up, WD0E was
able to send commands and listen to DOVE's reponses quite clearly. The
first command that WD0E sent was what he refers to as the "fire-code."
This immediately reset DOVE's on-board computer to its most basic operating
system software known as MBL. MBL is stored in DOVE's computer in Read
Only Memory (ROM) chips. After having verified that the computer had re-
set, WD0E then sent several commands to turn-on and then off the S-Band
transmitter to be sure that the Telemetry and Command (T&C) system was
functioning. After having confidence that DOVE was hearing the commands
and reponding correctly, WD0E then commanded DOVE to send 30 frames of
telemetry on its 2M downlink frequency of 145.825 MHz. While the 30 frames
of telemetry was being sent, K0RZ was simultaneously recording and decoding
it. WD0E points out that the major significance of this first step was
that it assured him that DOVE's primary systems were still in good shape
and that the receivers and transmitters were working normally along with
the T&C system. From this point onward, Harold Price (NK6K) will proceed
to reload the "house-keeping" software. If necessary, K0RZ has volunteered
his station to assist in the DOVE "house-keeping" software reload oper-
ation. With this sucessful first step, WD0E is very optimistic that DOVE
can not only be restored to full operation, but it can be made to "speak"
and perform its primary mission of education. Please stay tuned to the
AMSAT News Service (ANS) bulletins for further updates on the status of the
DOVE recovery effort.
[The AMSAT News Service (ANS) would like to thank Jim White (WD0E) for
providing the details of this bulletin item.]
/EX
SB SAT @ AMSAT $ANS-205.02
CALL FOR PAPERS
HR AMSAT NEWS SERVICE BULLETIN 205.02 FROM AMSAT HQ
SILVER SPRING, MD JULY 24, 1993
TO ALL RADIO AMATEURS BT
BID: $ANS-205.02
Call For Papers For the AMSAT-NA Space Symposium OCT 8-10
The 1993 AMSAT Annual Meeting and Space Symposium provides a unique oppor-
tunity for you to share the valuable experiences you've had over the past
year with the rest of the amateur satellite community. The AMSAT enthusi-
asts of North Texas are working hard to make the 1993 meeting a "smashing
success." But it can only be successful with your help. This is a call
for papers to be presented and published in association with the Symposium
this year.
If you would like to submit a paper, simply compose a short abstract de-
scribing the purpose and scope of the paper. Abstracts are due by July 30,
1993. The final draft of the papers are then due by August 27, 1993.
Please mail all submissions to the address below.
Presentations and technical papers are the meat of the AMSAT Annual Meeting
and Space Symposium. Even if you will not be able to attend, please con-
sider writing a paper for publication in the proceedings. Help us make
this year's Symposium one to remember.
Doug Howard - KG5OA
2517 Coldstream Drive
Fort Worth, TX 76123
CServe Address 70233,3517
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
IF YOU RESPOND BEFORE 26 JULY, YOU MAY DIRECT THE ABSTRACT TO:
Keith Pugh - W5IU
P. O. Box 121576
Fort Worth, TX 76121
CServe Address: 76177,3306
INTERNET: w5iu@amsat.org
/EX
SB SAT @ AMSAT $ANS-205.03
EME CONTACT FOR OSCAR USERS
HR AMSAT NEWS SERVICE BULLETIN 205.03 FROM AMSAT HQ
SILVER SPRING, MD JULY 24, 1993
TO ALL RADIO AMATEURS BT
BID: $ANS-205.03
VE3ONT Provides EME Contacts For OSCAR Satellite Users
The Toronto VHF Society, using the callsign VE3ONT, will use the 46M
(150 ft) diameter radio telescope at Algonquin Provincial Park (grid
FN05xw) during this year's ARRL International EME Competition.
VE3ONT will be active the full weekend of each contest period, October 9-10
and November 6-7. Below is the schedule of operations:
Date VE3ONT TX Freq. Listening range Approx. times (UTC)
Oct 9 432.050 432.050 - 432.060 0445-1830
Oct 10 144.029 144.025 - 144.030 0550-1900
Nov 6 432.050 432.050 - 432.060 0340 1700
Nov 7 1296.050 1296.050 - 1296.060 0450-1730
VE3ONT will operate "split" and we ask that stations avoid calling us on
our transmit frequency. VE3ONT will transmit and receive with left-hand
circular-polarization (LHCP) off the dish on all bands. This means that
after reflection from the Moon, signals will be right-hand circular
polarized (RHCP). This will permit us to work stations with vertical,
horizontal, or RHCP polarization. VE3ONT will transmit at the legal power
limit on 144 and 432 MHz and 100 watts on 1296. Power amplifiers and
receiving preamps are located at the dish feed.
As users of a non-amateur antenna, we will not be in competition with other
stations. Our intention is to provide an initial EME contact for as many
stations as possible. Consequently, we strongly discourage duplicate or
"insurance" contacts. Operation will be primarily on CW, although SSB
might be employed depending on signal strength and number of stations
calling.
All operation will be "random" format, meaning that VE3ONT will accept no
skeds. If conditions are poor, we will use a 30-second sequence in which
VE3ONT transmits the first 30 seconds and listens during the second 30
seconds of each minute. Note that this is NOT the usual sequence for EME
skeds.
VE3ONT will maintain HF liaison on 14.345 MHz during daylight hours and on
3.818 MHz at night.
We anticipate being able to work OSCAR-class stations with 100 watts of
output power on 144 and 432 MHz; 25 watts should be sufficient on 1296 MHz.
Photographs and technical information concerning the dish and VE3ONT's
operation will be presented by W9IP and VE3ASO at the Central States VHF
Conference and the Eastern VHF/UHF Conference.
For clarification, contact Dennis Mungham (VE3ASO) (613) 998-7330/989-2339
or Michael Owen W9IP (315) 379-0161/379-5975. QSL to VE3ONT (Callbook
address).
/EX
SB SAT @ AMSAT $ANS-205.04
AMSAT OPS NET SCHEDULE
HR AMSAT NEWS SERVICE BULLETIN 205.04 FROM AMSAT HQ
SILVER SPRING, MD JULY 24, 1993
TO ALL RADIO AMATEURS BT
BID: $ANS-205.04
AMSAT Operations Net Schedule
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 a frequency of 145.955 MHz
Date UTC Mode Phs NCS Alt NCS
24-Jul-93 1930 B 70 N7NQM W5IU
31-Jul-93 1300 B 98 WB6LLO WA5ZIB
07-Aug-93 1530 B 72 WA5ZIB WJ9F
14-Aug-93 2000 B 90 W9ODI N7NQM
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-205.05
WEEKLY OSCAR STATUS REPORTS
HR AMSAT NEWS SERVICE BULLETIN 205.05 FROM AMSAT HQ
SILVER SPRING, MD JULY 24, 1993
TO ALL RADIO AMATEURS BT
BID: $ANS-205.05
Weekly OSCAR Status Reports: 24-JUL-93
AO-13: Current Transponder Operating Schedule:
L QST *** AO-13 TRANSPONDER SCHEDULE *** 1993 Jul 24-Aug 09
Mode-B : MA 0 to MA 30 !
Mode-S : MA 30 to MA 55 !<- S transponder; B trsp. is OFF
Mode-S : MA 55 to MA 60 !<- S beacon only
Mode-BS : MA 60 to MA 105 ! Blon/Blat 150/0
Mode-B : MA 105 to MA 256 !
Omnis : MA 170 to MA 15 ! Move to attitude 180/0 09-Aug-1993
Please do not uplink to Mode-B between MA 25 through 40 as this will QRM
the Mode-S users. Don't rely on gossip and rumor! Continuous up-to-date
information about AO-13 operations is always available on the beacons on
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,
etc., and can also be found in many international newsletters.
[G3RUH/DB2OS/VK5AGR]
MIR: RD3VR, QSL Manager for the MIR space station, reports that he often
receives many letters with QSL cards for MIR contacts. He wants to assure
everyone who is kind enough to include write a letter that they are read.
RD3VR asks that all who send QSL cards to please enclose your QSLs in a
sealed envelope. Also, please send him QSL cards for contacts made only
made after 01-JAN-93. And one final request from the QSL Manager of MIR,
he asks that you also include a self-addressed-stamped-envelope (SASE) with
your QSL card. If you have additional questions about QSL cards and the
MIR space staion, you can direct your questions to him at the following
packet radio addresses: RV3DR@R2MIR-1 or RV3DR@RK3KP.MSK.RUS.EU. Please
send your QSL cards to either of the following addresses:
RV3DR-Serge Samburov, Space QSL Manager
P.O. BOX 141070, BOX 73, Kaliningrad-10 city, Moscow Area,
RUSSIA.
or direct:
P.O.141070,Kaliningrad city, Moscow Area,
prospekt Cosmonavtov, dom 36, kw 96, RUSSIA
The South American QSL Manager for MIR is LW2DTZ. His address is:
Gustavo Carpignano
M.Rosas 2044
1828 - Banfield
Buenos Aires - Argentina
For Australia, use VK3CFI's Call Book address.
[Chief of Cosmonaut Amateur Radio Department NPO "Energia" RV3DR]
FO-20: N0NBH reports that FO-20 is performing superbly in both its Mode-JA
(analog) mode and its Mode-JD (digital) mode this week with out any prob-
lems. [N0NBH]
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