In this HamRadioNow video Lou McFadin W5DID describes the ARISSat-1 satellite, using the operational model at the AMSAT booth at the Orlando HamCation. HamRadioNow says Gary KN4AQ feels inadequate in the presence of such accomplished hams, and he insults the astronauts. That makes Lou uncomfortable, so he goes on to talk about the future of AMSAT and ARISSat.
Lou says that the reason for the ARISSat-1 435 MHz antenna snapping off was due to damage in transit up to the Internatonal Space Station (ISS). He mentions that he hopes NASA can be persuaded to take ARISSat-2 to the ISS. Lou also describes the problems caused by the US Federal Government ITAR restrictions.
Watch HamRadioNow Episode 2, Part 2 – AMSAT
The grab handles shown on ARISSat were supplied by a member of AMSAT-UK.
Original design of the Euroluna Romit-3 Lunar Rover – Image courtesy of Andrew Collis/X-Prize Foundation
The President of Euroluna Palle Haastrup OZ1HIA gives an update on the Romit1 CubeSat and plans for Romit2 and Romit3.
Euroluna are a Danish amateur team participating in the $30 million Google Lunar X PRIZE contest to be the first privately funded team to land and drive a rover on the Moon.
Romit1 is a 2U CubeSat that is planned to launch on the Interorbital Systems Neptune 9 rocket. It will transmit on 437.505 MHz at 1200 bps.
If everything goes well it should, after a year, be out in a 700 km orbit, having started in a 310 km orbit.
Romit1 – Image Credit GomSpace ApS
When the rocket reaches its orbital altitude, the satellite is deployed using a spring-loaded device. Romit1 then powers up and conducts a systems test. The satellite must stabilize itself so that it has the right orientation (with the propulsion system pointing aft). The spacecraft will immediately start its engine so that it can begin its journey to a higher altitude, away from any traces of atmosphere that would produce drag, slow it down, and shorten its orbital lifespan.
It is hoped that radio amateurs across the world will assist the team in retrieving the data sent down, for example, they can gather images from the six cameras. Radio amateurs can send the pixels they receive to Euroluna who will assemble them into a full image.
The group are currently looking for a launch opportunity for Romit2 as well as Romit3 that is planned to reach the Moon.
The amateur radio satellite HAMSAT VO-52 ceased operating on February 28, neither it’s beacon or 435/145 MHz SSB/CW linear transponder have been heard since.
Ib Christoffersen OZ1MY reported that he heard and briefly used the transponder on the pass with Acquisition of Signal (AOS) in Copenhagen at 0826 UT on February 28. On the next pass with AOS at 1003 UT it was not on.
Mani VU2WMY provides this update:
Dear HAMSAT VO-52 users,
With regrets, we confirm the non-availability of the transponder on HAMSAT VO-52 since 28th February 2012. This is the first ever interruption in the services of HAMSAT since 5th May 2005.
The timely feed back from John K8YSE, Domenico I8CVS, Eugenio IZ8JHD, Jan PE0SAT and Nitin VU3TYG were highly appreciated and acknowledged by the ISRO’s HAMSAT Mission Management Board.
I’m herewith enclosing the mail received from Mr. T.Parimalarangan, Operations Director-HAMSAT VO-52 regarding the ‘Temporary Non-availability’ of VO-52 transponder and beacon.
__________________
Mr. Subramani VU2WMY:
Thanks for obtaining the user feedback. You may please post the following message in the Users website. If possible, try to find out who has last operated HAMSAT payload transponder on 28th and at what time
“HAMSAT Transponder services not available temporarily due to operational reasons. Inconvenience regretted”
With Best Regards,
T PARIMALARANGAN
OD, HAMSAT (NP)
Ken Eaton GW1FKY brings news that the reset attempt on COMPASS-1, late Tuesday, February 28, appeared to be successful. Further information at http://www.dk3wn.info/p/?p=26334
At 20:27 Feb. 29 Mike DK3WN posted this update: Better news … Alan, ZL2BX could command COMPASS at 19:25 UTC – all thresholds commands were accepted.
COMPASS went into eclipse at 19:45 and into sunlight at 20:17 UTC. I sent the thresholds at 20:20 UTC and got an confirmation beep for all commands 🙂
So COMPASS is now in Emergency Mode and the beacon intervall is 8 minutes.
Fingers crossed….
Earlier Post Feb 28: COMPASS-1 needs your help
2012-02-27 23:16 UTC nothing heard JA0CAW
2012-02-27 23:38 UTC nothing heard VK5HI
2012-02-28 00:50 UTC nothing heard JA0CAW
2012-02-28 02:28 UTC nothing heard JA0CAW
2012-02-28 00:58 UTC FF032802180000210000900000 JA1GDE
--------------------------------------------------------------------
Solar Cell Voltage 5.00 V
Solar Panel 6 Cur (+Z) 18.82 mA
Solar Panel 2 Cur (+Y) 0.00 mA
Solar Panel 3 Cur (-X) 150.59 mA
Solar Panel 4 Cur (-Y) 12.55 mA
Solar Panel 5 Cur (-Z) 250.98 mA
EPS Reset Counter 0
Power Level Critical Battery Capacity Heater Active Battery Heater ON
Power Safe Counter 0
Emergency Mode Counter 0
Battery Voltage 2.82 V
Battery Current 0.00 mA
Battery Temperature 0 °C
--------------------------------------------------------
That means COMPASS did a complete restart and the thresholds for heater and battery voltages should be new set.
Can anyone try to send the following DTMF sequences to COMPASS-1 (if in sunlight), please :
If you have no possibilities to send DTMF tones with your transceiver, you can download here a very simple DTMF controller for COMPASS. Simply hold the microphone in front of your loudspeaker and press the buttons.
The 1st Interplanetary CubeSat Workshop takes place in Cambridge, Massachusetts, 29-30 May, 2012
iCubeSat, the Interplanetary CubeSat Workshop, will address the technical challenges, opportunities, and practicalities of space exploration with CubeSats.
The workshop will provide a unique environment for open practical collaboration between academic researchers, industry professionals, policy makers, and students developing this new and rapidly growing field.
Talks and round tables will focus on three themes: technology, science, and open collaboration.
Keynote speakers
Technology: Mason Peck, NASA, Chief Technologist
Science: Sara Seager KB1WTW, MIT, Professor of Physics and Planetary Science
The program will also include unconference sessions to provide additional opportunities to engage with the interplanetary CubeSat community and potential collaborators. Talks and supporting material will be streamed and posted on the conference website. A lively social program in and around summertime Boston will be arranged for participants and their guests.
Astronaut André Kuipers PI9ISS was calling CQ from the International Space Station on 145.800 MHz FM on both Saturday and Sunday afternoon, Feb. 25-26.
Paul Waddington M6WAD and son Ethan
André worked mainly Dutch stations although one UK Foundation holder Paul Waddington M6WAD was lucky enough to have a contact with him on Sunday.
Paul says “I am absolutely thrilled to have had a QSO with the ISS. I just thought I would put out a random call, as I have done so many times in the past, and he answered me. I must say, when he did reply, I became a little tongue tied in disbelief!!! I use a Yaesu FT7900 to a Comet GP-15N Triband antenna.”
When the astronauts work other radio amateurs back on Earth they transmit on 145.800 MHz FM but operate “split” listening for replies 600 kHz lower on 145.200 MHz. If you are lucky and hear them calling CQ just remember to activate your rigs repeater shift to ensure you reply on the correct frequency. You should never transmit on 145.800 MHz.
The amateur rado station on the ISS runs QRP, just 5 watts of FM to an omni-directional antenna. Despite the low power it is a strong signal and can easily be received on a handheld radio with quarter wave whip.
AMSAT-UK 
You must be logged in to post a comment.