Date: February 7th 2007

SB SAT @ AMSAT $ANS-037 01 ANS Special Bulletin: AMSAT-NA and AMSAT-UK Donation to P3E

AMSAT News Service Bulletin 037 01

From AMSAT HQ SILVER SPRING, MD January 14, 2007 To All RADIO AMATEURS BID: $ANS-037 01

AMSAT Groups Make Donation to AMSAT-DL to Facilitate Completion of P3E Satellite Amateur Radio Satellite

Following a meeting between representatives of the AMSAT groups from North America (AMSAT-NA), The United Kingdom (AMSAT-UK), and Germany (AMSAT-DL), a decision has been made by AMSAT-NA and AMSAT-UK to donate a total of 40,000 Euros to AMSAT-DL for the purpose of funding the continued operation of the "Zentrales Entwicklungslabor for Electronik", (Central Development Lab for Electronics, aka "The ZEL")

The ZEL was established over 20 years ago at the University of Marburg by AMSAT-DL for the purpose of satellite construction It is in this suite of workshops that several amateur space frames have been constructed, integrated and tested, including the famous OSCAR 13 The ZEL is staffed by approximately 10 engineers, technicians, administrators, etc , who are a mixture of University employees and AMSAT-DL volunteers The major current project in the ZEL is the construction of the Phase 3E satellite (P3E) Although construction is centred at the ZEL many of the components come from other parts of the world, including the Integrated Housekeeping Unit (IHU-3), the CAN-Do buss interface modules, and the STAR camera from AMSAT-NA and the U/V SDX trans- ponder module from AMSAT-UK

P3E is considered vital to the amateur radio space community for a variety of reasons Currently there is no high orbit satellite carrying analogue transponders allowing DX multiple simultaneous contacts There are amateur radio satellites in low earth orbit but these, because of their low orbit, only support relatively short range contacts and are only visible for short periods of time (e g 10 - 15 minutes) The proposed orbit of P3E will cause it to be visible from amateur radio stations on earth for several hours at a time, allowing increased periods of operation and experimentation

P3E is considered a 'low risk' approach based on many of the design parameters of the hugely successful OSCAR 13 In order to keep costs low, it is based on a flight spare chassis left over from the OSCAR 13 development programme There will, however, be several new innovations For example, the Mode U/V transponder, with a planned 80 KHz bandwidth, will be based on DSP technology using software developed in the UK and SDR HELAPS jointly developed with AMSAT-NA The IHU-3 will be a new development based on a unit successfully tested on OSCAR-40 There will be several other experiments which will test techniques needed for the proposed flight of an amateur radio spacecraft to Mars (Phase 5A), for example, a low power beacon simulating the weak signals that it will send from the Phase 5A satellite (P5A) on its journey to Mars This will allow radio amateurs to test their stations in readi- ness for P5A

The optimal years for launching a Mars bound spacecraft are 2009 or 2011 so it is important that P3E is launched as soon as possible This is currently planned to be at the end of 2008 It is realised that the next important step is to obtain an agreement with a suitable launch agency to undertake to fly the satellite

Further resources: Previous progress report on P3E http://www amsat-dl org/p3e/ Photographs of The ZEL http://n4hy smugmug com/gallery/383989/ and http://www uk amsat org/index php?option=com_wrapper&Itemid=94

/EX

Via the ANS mailing list courtesy of AMSAT-NA http://amsat org/mailman/listinfo/ans

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