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1993-08-28
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SB SAT @ AMSAT $ANS-226.01
ITAMSAT-A LAUNCH DELAYED
HR AMSAT NEWS SERVICE BULLETIN 226.01 FROM AMSAT HQ
SILVER SPRING, MD AUGUST 14, 1993
TO ALL RADIO AMATEURS BT
BID: $ANS-226.01
Launch Of ITAMSAT-A MICROSAT Delayed Until 21-SEP-93
Alberto Zagni (I2KBD) of AMSAT Italy (ITAMSAT) was informed by Arianespace
officials this week that the launch of the ITAMSAT-A MICROSAT will be de-
layed until 21-SEP-93. The reason for the delay was not completely clear
but seems to be related to some damage sustained by the ground test equip-
ment of the main payload, SPOT-3. In addition, there are several other
small satellites that will be affected by this delay and they include
KITSAT-B, POSAT, and EYESAT-A. It uncertain whether the groups associated
with each satellite will remain in Kourou, French Guyana to "baby-sit"
their respective satellite or they will take their satellite home and then
returned again at the appropriate time in the launch campaign.
In order to provide as much information about these satellites as possible
so that radio amateurs will be ready, the following frequency table is
given below for each of these satellites:
ITAMSAT-A:
Downlink: 435.867/435.822 MHz (435.867 MHz is the primary frequency)
Uplink: 145.875/145.900/145.925/145.950 MHz
Speed: 1200/4800/9600 baud
KITSAT-B:
Uplink : 145.870/145.980 MHz
Downlink: 435.175/436.500 MHz
Speed : 9600 baud
EYESAT-A:
Uplink : 145.850 MHz
Downlink: 436.800 MHz
Speed : 300 - 9600 baud
POSAT :
Uplink : 145.925/145.975 MHz
Downlink: 435.250/435.275 MHz (435.250 MHz is the primary frequency)
Speed : 9600 bps (38.4Kbps probably)
[The AMSAT News Service (ANS) would like to thank I2KBD, G0SUL and KD2BD
for providing the details which went into this bulletin item.]
/EX
SB SAT @ AMSAT $ANS-226.02
AMSAT OPS NET SCHEDULE
HR AMSAT NEWS SERVICE BULLETIN 226.02 FROM AMSAT HQ
SILVER SPRING, MD AUGUST 14, 1993
TO ALL RADIO AMATEURS BT
BID: $ANS-226.02
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
21-Aug-93 1500 B 161 W5IU WA5ZIB
28-Aug-93 1830 B 157 WJ9F VE2LVC
11-Sep-93 0730 B 159 VE2LVC W9ODI
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-226.03
CHILEAN MICROSAT TO BE BUILT
HR AMSAT NEWS SERVICE BULLETIN 226.03 FROM AMSAT HQ
SILVER SPRING, MD AUGUST 14, 1993
TO ALL RADIO AMATEURS BT
BID: $ANS-226.03
Chilean MICROSAT To Be Built With A Planned Launch Date Of Early '95
The first MICROSAT from Chile and to be named CEsar-1, will be launch the
in early '95. This announcement was made by the Radio Club Federation in
Santiago. The Radio Club Federation will also provide the ground control
station for CE-1 after it is on-orbit.
The satellite will be a MICROSAT class similiar to AO-16, LO-19, WO-18, and
DOVE. The orbit will be sun-synchronous and the altitude will be about
900 KM.
The designed will include some scientific experiments which will be con-
structed by students from three local universities along with some help
from the Chilean Air Force.
The estimated cost of the design and assembly of CE-1 will be about $1M dollars
(US). The Radio Club Federation said that CE-1 is designed to help facilate
communications between Chilean radio amateurs and amateurs around the world.
[The AMSAT News Service (ANS) would like to thank LW2DTZ of AMSAT-LU for
this bulletin item.
/EX
SB SAT @ AMSAT $ANS-226.04
FD SATELLITE RESULTS NEEDED
HR AMSAT NEWS SERVICE BULLETIN 226.04 FROM AMSAT HQ
SILVER SPRING, MD AUGUST 14, 1993
TO ALL RADIO AMATEURS BT
BID: $ANS-226.04
Field Day Satellite Results Needed!
There is still time to send in your 1993 AMSAT Field Day summary sheets for
satellite operation. Refer to the March/April 1992 issue of the AMSAT
Journal, page 27 for the proper format. Send your results to Andy Mac-
Allister (WA5ZIB), AMSAT-NA Vice President User Services, 14714 Knights Way
Drive, Houston, TX 77083-5640. The deadline is August 28th. Results
formatted per the AMSAT Journal sample can also be sent via the Internet to
WA5ZIB@amsat.org or through Compuserve to 73617,1765.
/EX
SB SAT @ AMSAT $ANS-226.05
SPACON-93 CONFERENCE SET
HR AMSAT NEWS SERVICE BULLETIN 226.05 FROM AMSAT HQ
SILVER SPRING, MD AUGUST 14, 1993
TO ALL RADIO AMATEURS BT
BID: $ANS-226.05
SA-AMSAT SPACECON '93 Features Education & Self-training
SA AMSAT's annual space communications conference "Spacecon 93" features
education and self-training as its main theme. "We have aimed at putting
together a program that will offer many subjects of interest to both the
beginner and the experienced space communications enthusiast", Hans van de
Groenendaal, President of SA AMSAT said.
The conference will be opened by the Minister of National Education Mr. P.
G. Marais. During the morning, two parallel tracks will be run with track
one focusing on the high technology aspects of space communication while
track two has been specifically put together for teachers and newcomers in
the field.
In track one a group of five post-graduate students from the University of
Stellenbosch will present papers covering the many aspects of the design
and construction of the SUNSAT spacecraft.
The conference will be held at the HiPerformance Auditorium in East Gate,
Sandton (near Johannesburg)on Saturday 11-SEP-93. The registration fee
includes a set of papers. For registration, accommodation etc please
contact SA AMSAT P.O.Box 13273, Northmead 1511 South Africa. Fax +27 11
849-3488. Via internet: AMSAT@UCTVAX.UCT.AC.ZA or ZS6AKV@AMSAT.ORG
The full program agenda is as follows:
TRACK ONE
SATURDAY 11-SEP-93
08:00 Registration
Early morning Tea/coffee
08:30 Welcoming
- Hans van de Groenendaal
President SA AMSAT
08:35 Official opening and Key Note Address
- Mr P G Marais
Minister of National Education
09:00 Satellites in Education
"Classroom Projects"
- Hans van de Groenendaal
09:30 Tea/Coffee
09:50 Microsat operation with UoS PB and PG
- Jan Hattingh
10:20 Non-Tracking Ground Station Antenna Principles
- Samuel E Ritchie
10:50 Use of helical resonators for high-selectivity filters
- Eugene Jansen SUNSAT Team
11:05 Orientation Determination & Control System on SUNSAT
- Jan Tredoux
11:20 The SUNSAT VHF Receiver
- Pieter van der Westhuizen
11:35 The SUNSAT Telemetry System
- Ian de Swardt
11:50 The SUNSAT Computer System
- Herman Gouws
12:10 AMSAT Phase 3D Satellite-Review of total project
- Hennie Rheeder
12:30 Quadrifilar Helix Antenna
- Samuel E Ritchie
13:00 Finger Lunch
13:45 Image reject mixer in VHF and UHF Receiver design
- Tony Reumerman
14:15 Telemetry Analysis on FO20 day/night power budget
- Jan Hattingh
14:45 Digital Signal processing
- Johan van de Groenendaal
15:15 Tea/Coffee
15:30 Propagation Research Using Mode-A Satellites
- Hans van de Groenendaal
16:00 Shorting Stubs To Curb Interference From Strong Signals
- Gerald Klatzko ZS6BTD
16:30 Open Forum
17:00 SA AMSAT AGM followed by cocktails
TRACK TWO
SATURDAY 11-SEP-93
09:50 Practical Aspects of Amateur Radio & Space Communication in
Schools
- Hans van de Groenendaal
10:20 Basic Satellite Terminology Explained
- Willem Nel
10:50 Colourful Patches of SAREX Missions
- Jan Hatting
11:00 Communicating With The Space Shuttle And The MIR Platform
- Hans van de Groenendaal
11:30 The Basics Of Satellite Tracking
- Willem Nel
12:00 Trakbox- Dedicated Satellite Tracking
- Piet van Schie
12:30 Beginners Choice - What Satellites To Start With
- Hans van de Groenendaal
END
[The AMSAT News Service (ANS) would like to thank ZS6AKV of SA-AMSAT for
this bulletin item.]
/EX
SB SAT @ AMSAT $ANS-226.06
WEEKLY OSCAR STATUS REPORTS
HR AMSAT NEWS SERVICE BULLETIN 226.06 FROM AMSAT HQ
SILVER SPRING, MD AUGUST 14, 1993
TO ALL RADIO AMATEURS BT
BID: $ANS-226.06
Weekly OSCAR Status Reports: 14-AUG-93
AO-13: Current Transponder Operating Schedule:
L QST *** AO-13 TRANSPONDER SCHEDULE *** 1993 Aug 14-Oct 25
Mode-B : MA 0 to MA 60 !
Mode-BS : MA 60 to MA 120 !
Mode-S : MA 120 to MA 145 !<- Mode-S transponder; B transponder is OFF
Mode-S : MA 145 to MA 150 !<- Mode-S beacon only
Mode-BS : MA 150 to MA 210 ! Blon/Blat 180/0
Mode-B : MA 210 to MA 256 !
Omnis : MA 170 to MA 15 ! Move to attitude 210/0 25-Oct-1993
Magnetorquing from attitude Bahn LONG/LAT of 150/0 to 180/0 will commence
on Aug 14-AUG-93 [Sat], at 14:07 UTC, Orbit #3957 and continue for 5
perigees. Estimated interim attitudes will be:
Orbit BLONG/BLAT
#3958 153/1
#3959 159/-1
#3960 165/-3
#3961 172/-4
#3962 178/-5.
For command purposes during these next three days, the Mode-S beacon is ON
between MA 55-60 and MA 145-150, i.e. Mode-B OFF. The new schedule will
be uploaded on Orbit #3961 at MA 145. Mode-BS will initially be MA 150-180
only. 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, etc., and can also be found in many inter-
national newsletters. [G3RUH/DB2OS/VK5AGR]
FO-20: FO-20 continues to perform great in both analog and digital modes.
Remember that Wednesdays the analog transponder is operational. [N0NBH]
RS-10: On 10-AUG-93 K0BJ worked XE1KK on RS-10 on a downlink frequency of
about 29.391 MHz. WA6ARA reports that RS-10 is doing very well and that
evening passes are especially fun! WA6ARA notes that usually the 10M band
is down but sometimes it is like swiss cheese. About 5 watts uplink power
using CW will get you a 559 report on RS-10. [K0BJ & WA6ARA]
RS-12: K0BJ reports that he heard PJ2MI and PZ1EH working RS-12 on a down-
link frequency of 29.423 MHz. WA6ARA notes that the best passes for RS-12
are in the late evening but that they getting earlier all the time. He
also notes that very few hams are using this bird, generally two or three
CW stations and perhpas a pair on SSB. WA6ARA comments that he finds it
"strange" that more stations do not try to work RS-12 since just about
anyone with a HF station can access RS-12. He uses 5 watts into a HW-9, a
dipole antenna for the up 15M uplink, and an Argonaut receiver and long
wire for the downlink. [K0BJ & WA6ARA]
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