[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][JAMSAT Home]

[jamsat-bb:17565] =?gb2312?b?RVZFs8m5pqOh?=


みなさま

 amsat-bbに和のメ`ルが送れました。C亠鍬Uベ`スで賦しUありませんが、念
猟だけgにdせますと

-------
2009定3埖25晩に、ドイツのAMSAT-DLのチ`ムは、諮佛に鬚う雌佛冥CP5-A)g
Fへのマイルスト`ンに欺_しました。 ボ`フム爺猟岬の仇貧蕉はo佚催を署佛に
僕りました。 およそ1|キロメ`トルの巓[唾佩を唾佩した瘁、s5蛍のWれで、署佛
の燕中からのエコ`を苧_に鞭け函りました。 雌佛のエコ`を鞭けるのは、ドイツと
ヨ`ロッパで兜めてのことです。 さらに、これはアマチュアo社によって佩われる
埖中郡符宥佚(EME)からの郡符よりも100蔚參貧のhい鉦xからの郡符佚催です。
-------

巓襖方は2.4GHz、僕佚Cはルビジウムk尅匂で崙囮されたマグネトロン僕佚Cで竃薦
6KW、モ`ドはCWだったそうです。

-------

On March 25th, 2009 a team from the German space organisation AMSAT-DL reached
 another milestone on its way to an own interplanetary probe towards planet Mars. 
The ground station at the Bochum observatory transmitted radio signals to Venus. 
After traveling almost 100 million kilometers and a round trip delay of 
about 5 minutes, they were clearly received as echoes from the surface of Venus. 
Receiving planetary echoes is a premi┬re in Germany and Europe. In addition, 
this is the farthest distance crossed by radio amateurs, 
over 100 times further than echoes from the moon (EME reflexions).

For receiving the EVE (Earth-Venus-Earth) reflections, 
an FFT analysis with an integration time of 5 minutes was used. 
After integrating for 2 minutes only, 
the reflected signals were clearly visible in the display.
Despite the bad weather, 
signals from Venus could be detected from 1038UT 
on until the planet reached the local horizon.

The high power amplifier which is described in the current AMSAT-DL journal
 has therefore passed this crucial test as a final key component 
for the planned P5-A Mars mission. By receiving generated echoes from Venus, 
the ground and command station for the Mars probe has been cleared for operational
 use and the AMSAT-Team is now gearing up for building the P5-A space probe.
For financing the actual construction and launch, AMSAT-DL is currently 
in negotiation with the DLR (Deutsches Zentrum f┨r Luft- und Raumfahrt) among others,
 to obtain financial support for the remaining budget of 20 Mill EUR.

AMSAT-DL wants to show that low-budget interplanetary exploration 
is possible with its approach.

More information and the link to the official press release:

http://www.amsat-dl.org//index.php?option=com_content&task=view&id=166&Itemid=97


The EVE experiment was repeated on Thursday, March 26th for several hours with 
good echoes from Venus. Morse code was used to transmit the well known ?HI^ 
signature known from the AMSAT OSCAR satellites.


73s de DB2OS

Peter Guelzow
President AMSAT-DL


---------------------------------------
JG1KOE 弌\ 械臓
Oguro Tunetaka
oguro-t@asahi.com
---------------------------------------
$0A1┘xa筋0j+,zXf