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Ham Satellite news

MRO på 437.1 MHz

Anders SM0DZL informerar om MRO (Mars Reconnaissance Orbiter) som kommer att snda p 437.1 MHZ:
——
MRO = Mars Reconnaissance Orbiter
Launch 2005 08 12 Atlas 5-401 frm Cape Canaveral AF station >>Mars 2006 03 10

Data snds p : 8 GHz, TX 100 W vandringsvgrr, ant 3 m diameter snder ven p 32 GHz
Markstationer: Deep Space network 34 m antenner i Goldstone / Spaninen / Australien

Finns inte med i JPLs satellitlista men just nu ligger MRO ngonstans nra ekliptikan. Tyvrr inga tider som passar oss eftersom den r hrbar endast nattetid.

Klla: Anders SM0DZL

Categories
Ham Satellite news

SSETI försenad

Tyvrr s verkar det som att uppskjutningen kommer att bli frsenad.

Lnk

Klla: www

Categories
Ham Satellite news

Se SSETI-uppskjutningen live 30 sept

Via Internet gr det att se uppskjutningen av SSETI Express live. Start r planerad till 30 september och sedan gr det att ta emot telemetri enligt frekvenser nedan:

The launch of SSETI Express from Plesetsk in northern Russia on Friday 30th September at 06:52 UTC will be streamed to the Internet. Thanks to the efforts of Howard Long G6LVB Radio Amateurs around the world will be able to watch the launch live by entering the following URL into their browser:

http://www.streamingwizard.com/clients/space.asx

For the latest news and pictures from Plesetsk see the SSETI Express Mission News Page at:
http://sseti.gte.tuwien.ac.at/WSW4/MOPWS/news

The Download Page at http://sseti.gte.tuwien.ac.at/WSW4/MOPWS/downloads.php
contains software for Radio Amateurs to enable them to make use of the spacecraft along with the launch campaign logbook.

The latest version of the SSETI Express Handbook can be downloaded from http://www.uk.amsat.org/

It is planned that SSETI Express will downlink telemetry in AX25 format at 9k6 on 437.250MHz and at 38k4 on 2401.835MHz. It should also be available for Radio
Amateurs to use as a single channel FM transponder.

Klla: Trevor M5AKA

Categories
Ham Satellite news

PCSAT2 kör digipeating

The PCSAT2 packet system is enabled for both 1200 and 9600 baud digipeating, and it can also do cross-BAUD digipeating. That is 1200 up and 9600 down or 9600 up and 1200 down. We had no specific application in mind, but it
is there for experimentation.

For 1200 or 9600 use the path VIA ARISS. For cross-BAUD operation use the path VIA XBAUD.

The easiest way to experiment is to use either the Kantronics KPC-9612+ TNC or the Kenwood D7 or D700 that can both easily switch between 1200 and 9600 baud.

Experiment with the shortest TXD delay you can get by with at 9600 baud. Typically for one-at-a-time packets like APRS, there is not much advantage for operating at 9600 baud, because the TXD delay is often as long or longer
than the data, so the actual throughput advantage of 9600 is more like a factor of 2 than 8.

Perhaps the value of operating at 9600 baud would be in downloading Mail from the PCSAT2 PBBS. That is the only time when all the delays will be amortized and 9600 baud would give you a significant throughput advantage.

Users are welcome to use the PCSAT2 digipeater for experimentation.
Uplink is 145.825
Downlink 435.275 +/- 10 KHz Doppler
DIGIpeater call is ARISS for 1200 or 9600
DIGIpeater call is XBAUD for cross-baud
PBBS callsign is MAIL-1

The Kenwood D7 and D700 can do either 1200 or 9600 and on either band, but not both baud rates at the same time. The KPC-9612+ can transmit either 1200 or 9600, but because it is dual port, it can receive both at the same
time.

[ANS thanks Bob, WB4APR, and the US Naval Academy Satellite Lab for the above information]

Klla: ANS-261

Categories
Ham Satellite news

G6LVB automatiska antenn-tracker

Intressant lsning fr oss som gillar att sjlva snickra ihop prylar fr
satelliter:

G6LVB / Howard har uppdaterat sin automatiska antenn-tracker till en mer kapabel version 2. Full dokumentation p:
http://www.g6lvb.com/Articles/LVBTracker2/index.htm

Howard s hemsida har mycket annan intressant lsning ocks och r vl vr ett besk!7
3 de SM0RJV / Mats

G6LVB hemsida

Klla: SM0RJV Mats

Categories
Ham Satellite news

Samlade nyheter om SSETI Express

Hr kommer ett par veckors samlade nyheter om SSETI Express:

AMSAT News Service Bulletin 247.04
From AMSAT HQ SILVER SPRING, MD.
September 4, 2005
To All RADIO AMATEURS
BID: $ANS-247.04

The launch date of September 27th and a lift-off time of 06:52:26 UTC now looks pretty certain for the Cosmos 3 rocket carrying SSETI Express with its three cubesat passengers and four other satellites into orbit.

Updated pre-launch keps will be made available in a few days time and there are a number of web pages being developed to enable amateurs to locate SSETI Express, receive and download the telemetry and to forward it to Mission Control for their evaluation. Later in the mission it will also be possible for amateurs to transmit so-called friendly commands to request particular
telemetry or thumbnail pictures.

The SSETI team and ESA – The European Space Agency, are very keen to recruit as many radio amateurs as possible around the world to capture the telemetry. Our worldwide virtual groundstation network is a unique
facility which we can use to our benefit as well as theirs. By showing how well our network can substitute for their expensive professional one, we will really encourage them to include amateur transponder systems in their
future missions.

ESA will be offering a very significant prize for the amateur who sends them the largest amount of telemetry during the mission and is also offering a unique I heard it first T shirt to the station that sends them the first
report. This is actually likely to be one of the three Stations that we hope to having listening for SSETI Express in Antarctica – an ideal item of clothing for their forthcoming winter season!

The main mission site is being finalised and can already be accessed at www.sseti.net — click on the express mission operation web site link. This has full details of the mission, the software, present orbital position
and a host of other information.

AMSAT News Service Bulletin 254.05
From AMSAT HQ SILVER SPRING, MD.
September 11, 2005
To All RADIO AMATEURS
BID: $ANS-254.05

The SSETI Express Mission Pages at:
http://sseti.gte.tuwien.ac.at/WSW4/MOPWS/news.php
has a short report with some photos of the work being done at the assembly facility at the Plesetsk Cosmodrome assembly facility. Both the UHF and S band units have been tested and all appears ok so far. Please continue to keep those fingers crossed for us

[ANS thanks Graham, G3VZV for the above information]

SSETI Express Handbook Free Download

The Student Space Exploration and Technology Initiative was started by the European Space Agency (ESA) Education Office to enable University students in Europe to experience the challenges and opportunities of actually building a satellite and having it launched into space.

Their first satellite SSETI Express is scheduled for launch on September 30th from Plesetsk in northern Russia at approx 06:52 UTC. It is planned to downlink telemetry in AX25 format at 9k6 on 437.250MHz and at 38k4 on 2401.835MHz. It should also be available for Radio Amateurs to use as a single channel FM transponder.

To coincide with the launch the SSETI Express Handbook has just been published. Written by Richard Limebear G3RWL, using ESA and AMSAT-UK documentation, the 22 page handbook covers just about every aspect of this exciting new spacecraft. It details AMSAT-UK s involvement in the project and contains a wealth of technical information about the spacecraft and the 3 Picosats that will be
launched from it.

ESA has asked for the help of Radio Amateurs around the world to collect vital telemetry data from the satellite and they are organising a competition with a prize for whoever submits the largest number of valid telemetry payload packets to SSETI Express Mission Control by 1 January 2006. The handbook provides full details of how to enter this competition.

The PDF of the handbook can be downloaded free of charge from the AMSAT-UK website at http://www.uk.amsat.org/ or printed copies are available for 5 inc P&P in Europe from AMSAT-UK, Badgers, Letton Close, Blandford, Dorset, DT11
7SS. Tel: +44 (0)1258 453959 Email: g3wgm@amsat.org . Cheques should be made payable to AMSAT-UK. Postage rates for other parts of the world available on request.

A French version of the handbook translated by Christophe Candebat F1MOJ is also available.

http://www.uk.amsat.org/

SEETI hemsida

Klla: