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Software Vault: The Diamond Collection
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The Diamond Collection (Software Vault)(Digital Impact).ISO
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spc0213.zip
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SPC0213.TXT
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1995-02-19
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SB NEWS @ AMSAT $SPC0213
* SpaceNews 13-Feb-95 *
BID: $SPC0213
=========
SpaceNews
=========
MONDAY FEBRUARY 13, 1995
SpaceNews originates at KD2BD in Wall Township, New Jersey, USA. It is
published every week and is made available for unlimited free distribution.
* ITAMSAT STATUS *
==================
ITAMSAT (IO-26) status as of 03-Feb-95:
Alberto Zagni, I2KBD, reports that ground controllers IV2VOO and IK2OYD
loaded and succesfully ran the latest version of IHTX code on
ITAMSAT-OSCAR-26. This code allows for a scheduled OFF of the main
transmitter to conserve battery power and increase TX power during mostly
used parts of the orbit. WOD dumps are underway to analyze the new
power trend and BBS code upload should be take place shortly if all is
okay.
The following beacon frame was copied from the satellite by KD2BD on
11-Feb-95 at 01:30 UTC on 435.822 MHz:
IY2SAT-1>AMSAT <UI>:
** 6th February 1995 ** IHT ver. 3.1 running.
WOD channels 1E 21 30 2B 26 33 is underway. Digi is ON
73 de ITAMSAT Command team.
* H-II LAUNCH INFORMATION *
===========================
The National Space Development Agency (NASDA) had to reschedule the launch
of H-II Test Flight No. 3 on February 22, 1995. NASDA found that the Space
Flyer Unit (SFU) would have to be delivered by the Institute of Space and
Astronautical Science (ISAS) after February 11 because of a leak detected
in a pipe of Orbit Change Thruster (OCT) System of the Space Flyer Unit
(SFU). As a result, it will be impossible to launch the H-II in February.
The new date of the launch will be based on the delivery time of SFU which
is now under study by ISAS.
[Info via Yoshiro Yamada at the Yokohama Science Center, Japan]
* AO-27 STATUS *
================
Here is the current information on AO-27's status, courtesy of AO-27
control operator N4USI:
AO-27 will be on beginning Friday, 10 February 1995 until Monday morning,
13 February 1995.
AO-27 is generally available in FM repeater mode on weekends during
daylight passes over the Northern Hemisphere. The center downlink
frequency for stations that are correcting for doppler is 436.797 MHz.
The uplink is centered on 145.850 MHz. Uplink and downlink modes are FM.
The repeater is operational from when the satellite's foot print hits 38
degrees North latitude until it leaves about 37 degrees North latitude
during the daylight only. The repeater *may* activated on an ad-hoc basis
during evening passes on weekends and weekdays.
Users are reminded that as an FM-mode repeater, AO-27 is subject to FM
"capture effect" and can only transmit one signal at a time. Users are
asked to cooperate, keep calls short, give breaks so as many stations as
possible can work a pass, and ABOVE ALL, LISTEN BEFORE AND WHILE
TRANSMITTING. The satellite has a very senisitve receiver, and stations
running approximately 25 watts power to moderate-gain omnidirectional
antennas can get a good uplink signal into the satellite. A sensitive UHF
FM receiver with a preamplifier and an omnidirectional antenna can receive
AO-27's downlink with some fading. Moderate-gain directional arrays should
provide a solid receive signal. Remember to correct for the +/- 9 kHz of
doppler shift on the 436.797 MHz downlink signal during a pass. No doppler
correction is needed for the 145.850 MHz uplink signal.
Users are asked not to transmit on 145.850 MHz if they do not hear the
satellite's downlink so as to avoid possible interference to other
satellite uplinks and downlinks on adjacent frequencies.
Controllers will attempt to provide regular bulletins to keep the satellite
user community informed of AO-27's status and availability. For now,
questions regarding AO-27 may be forwarded to ka1lm@amsat.org.
[Info via Steve Greene, KA1LM]
* SpaceNews NEWS *
==================
Maurizio Bertolino reminds us that SpaceNews is available on his Trance BBS
in Turin, Italy. This BBS is devoted to Ham Radio, Short-wave Listening,
and Space Topics. It can be reached at: +39-11-482751.
* THANKS! *
===========
Thanks to all those who sent messages of appreciation to SpaceNews,
especially:
VE1AIC NT2P K4ITV G7MUB
* FEEDBACK/INPUT WELCOMED *
===========================
Mail to SpaceNews should be directed to the editor (John, KD2BD) via any
of the following paths:
FAX : 1-908-747-7107
PACKET : KD2BD @ KS4HR.NJ.USA.NA
INTERNET : kd2bd@amsat.org -or- magliaco@pilot.njin.net
SATELLITE : AMSAT-OSCAR-16, LUSAT-OSCAR-19
MAIL : John A. Magliacane, KD2BD
Department of Engineering and Technology
Advanced Technology Center
Brookdale Community College
Lincroft, New Jersey 07738
U.S.A.
<<=- SpaceNews: The first amateur newsletter read in space! -=>>
/EX