Initial Questions
Version 2 (J. Simmons, 10/07/2013 11:28 pm)
| 1 | 1 | J. Simmons | h1. Ground Sphere Initial Questions v. 0.1 |
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| 3 | 1 | J. Simmons | {{toc}} |
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| 5 | 1 | J. Simmons | h3. Q1. Why are we making this? |
| 6 | 1 | J. Simmons | |
| 7 | 2 | J. Simmons | *A1*. _The *Ground Sphere CubeSat Ground Station* is being built specifically to receive ""tweets from space" which will be broadcast by the "SkyCube":http://www.southernstars.com/skycube/ CubeSat. A side effect of having such a low cost and easy to use ground station is the educational opportunities in areas including satellite orbits, radio technology, telecommunications, and programming._ |
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| 9 | 1 | J. Simmons | h3. Q2. Who is this for? |
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| 11 | 2 | J. Simmons | *A2.* _The *Ground Sphere CubeSat Ground Station* is for "SkyCube backers":http://www.kickstarter.com/projects/880837561/skycube-the-first-satellite-launched-by-you/backers, students, teachers, scouting troupes, space enthusiasts, and anyone who wants to directly experience satellite communications and participate in the SkyCube mission._ |
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| 13 | 1 | J. Simmons | h3. Q3. How will this be used? |
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| 15 | 2 | J. Simmons | *A3*. _Ground station operators will use the ground station and its accompanying software to:_ |
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| 17 | 2 | J. Simmons | # _Predict when the SkyCube (and other satellites) will be flyover the ground station site_ |
| 18 | 2 | J. Simmons | # _Use the Software Defined Radio (SDR) to receive the radio transmissions from SkyCube (and other satellites operating on the nearby frequencie)_ |
| 19 | 2 | J. Simmons | # _Decode the data packets from the SkyCube to read the "tweets" from space_ |
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| 21 | 1 | J. Simmons | h3. Q4. What features does it need to have (now)? |
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| 23 | 1 | J. Simmons | *A4.* The test stand needs to: |
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| 25 | 2 | J. Simmons | * _Predict when the SkyCube satellite will flyover the ground station and be within signal reception range_ |
| 26 | 2 | J. Simmons | * _Receive radio signals on 915 MHz_ |
| 27 | 2 | J. Simmons | * _Decode BPSK-modulated, unencrypted AX.25 data packets sent at 9600 baud_ |
| 28 | 2 | J. Simmons | * _Be easy to assemble from kit components and only require simple tools (screw drivers, pliers, wrenches, etc) for assembly_ |
| 29 | 2 | J. Simmons | * _Have low shipping costs for the packaged kit_ |
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| 31 | 1 | J. Simmons | h3. Q5. What features does it need to have (later)? |
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| 33 | 1 | J. Simmons | _These features will not necessarily make it into any version of the project, but should be kept in mind for any of its larger sibling test stands later on._ |
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| 35 | 2 | J. Simmons | * _Predict when other satellites will fly over the ground station and be within signal reception range_ |
| 36 | 2 | J. Simmons | * _Decode other data formats commonly used by CubeSats_ |
| 37 | 2 | J. Simmons | * _Share radio signal with other users over Internet connections, so users can listen to satellite signals remotely_ |
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| 39 | 1 | J. Simmons | h3. Q6. What are the legacy requirements? |
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| 41 | 2 | J. Simmons | *A6.* _N/A_ |
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| 43 | 1 | J. Simmons | h3. Q7. Who's going to build this? |
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| 45 | 1 | J. Simmons | *A7.* _..._ |
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| 47 | 1 | J. Simmons | h3. Q8. How many do we want to make? |
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| 49 | 1 | J. Simmons | *A8.* _..._ |
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| 51 | 1 | J. Simmons | h3. Q9. What is the budget? |
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| 53 | 1 | J. Simmons | *A9.* _..._ |
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| 55 | 1 | J. Simmons | h3. Q10. What is the timeline? |
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| 57 | 1 | J. Simmons | *A10.* _..._ |
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| 59 | 1 | J. Simmons | h3. Q11. What waste products will be produced by the manufacture and/or operation of this? |
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| 61 | 1 | J. Simmons | *A11.* _..._ |