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Building the First US ARISSAT-1 Flight Unit Begins |
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Gould Smith, WA4SXM writing on behalf of the ARISSAT-1 team said construction of the flight unit begins in early February when Tony Monteiro, AA2TX begins electronic assembly of the first US flight unit for ARISSat.
the ARISSAT-1 team has had prototypes working for months. The enclosures have been painted by NASA and the cables prepared by Larry Brown, W7LB. The flight boards were built by the Microchip ARISSat team and Chuck Green, N0ADI, with Chuck checking all the flight units. Lou McFadin, W5DID has nearly assembled a complete flight structure (see photo above) designed by Bob Davis, KF4KSS. Lou expects to exhibit the structure in the AMSAT Booth at the upcoming Orlando HamCation. The first two flight TX/RX/Command receiver modules from Bill Ress, N6GHZ are due to arrive in February.
We just found out that ARISSat will receive a new callsign and some additional Russian greetings will be added. We will have more than 25 international greetings from around the world in twelve languages broadcast on the FM downlink. In addition to the greetings will be voice ID, voice telemetry values, SSTV images, CW signals, a new 1k BPSK signal by Phil Karn, KA9Q sending full telemetry and experiment data and a 16 kHz wide transponder. Kurst State University in Russia is providing the experiment and the Silver-Zinc battery for the mission. |
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Arissat-1 October 23 meeting |
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You can view more photos here
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ARISSat-1 is the reconfiguration of the SuitSat-2 project into a new superstructure. The fact that this was a modularly designed system, allowed the team to quickly adapt the units to a newly developed structure. Upon learning of the loss of the Russian Orlan suit that was to house SuitSat-2, the SuitSat-2/ARISSat-1 team responded by assembling a new team lead by Bob Davis, KF4KSS to develop a brand new structure in which to house the already developed satellite modules.
The major modules of ARISSat-1 are:
* Safety circuit and arming switches - now mounted to the structure +Z surface
* IHU enclosure - re-engineered to allow better cable connection and placement
* IHU enclosure - re-engineered to allow better cable connection and placement
* IHU - Integrated Housekeeping Unit - the main computer stays the same
* SDX - Software Defined Transponder - stays the same
* PSU - Power Supply Unit - board separated into Max Power Point Tracker boards and Power Supply board
* ICB - Interconnect Board - re-laid out the circuit board to adapt the connectors to new enclosure layout
* TX and RX modules - simply separated from the video enclosure and antenna
* 2m/70cm antenna - separated and re-designed, changed to two monopole antennas
* Video cameras - separated from the helmet enclosure and mounted to the structure
* Russian Ag-Zn battery - now mounted to a plate and inserted into the structure
* Kurst State University Experiment - now mounted to the satellite structure
* Solar Panels - the six panels are now on all sides of the structure
ARISSat-1 Structure
The draft drawings for the ARISSat-1 satellite are now available for viewing. This structure was developed from scratch by Bob Davis, KF4KSS and team over the last 9 weeks. Link to PDF format views to see the top/bottom, 6 sides, sides with protective covers and internal view. |
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New drawings of ARISSat-1 available |
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AMSAT-NA has made available on its website drawings of the upcoming Amateur Radio satellite ARISSat-1
ARISSat-1 is the reconfiguration of the SuitSat-2 project into a new superstructure. The fact that this was a modularly designed system, allowed the team to quickly adapt the units to a newly developed structure.
Upon learning of the loss of the Russian Orlan suit that was to house SuitSat-2, the SuitSat-2/ARISSat-1 team responded by assembling a new team lead by Bob Davis, KF4KSS to develop a brand new structure in which to house the already developed satellite modules. |
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