Ground Sphere Test Transmitter Requirements v0.1¶

• Ground Sphere Test Transmitter Requirements v0.1
  • Technical Requirements
    • • TR 1.1 Transmit radio signals on 915 MHz
      • TR 1.2 Test Transmitter Mobility
      • TR 1.3 Be easy to assemble from kit components
      • TR 1.4 Be easy to assemble from kit components
      • TR 1.4.1 Tools for assembly
      • TR 1.4.2 Time to assemble
    • TR 1.5 Have low shipping costs for the packaged kit
    • TR 1.6 Operate using a modern Windows PC
      • TR 1.6.1 Software must run on Windows
      • TR 1.6.2 Software must be easy to install
      • TR 1.7 Hardware must connect to PC using standard port(s)
    • TR 1.8 Hardware must be robust
  • Project Requirements
    • PR 1.1 Number to produce
    • PR 2.1 Budget
      • PR 2.1.1 Unit cost
      • PR 2.1.2 Development cost
    • PR 3.1 Timeline

Technical Requirements¶

TR 1.1 Transmit radio signals on 915 MHz¶

The Ground Sphere Test Transmitter will transmit radio signals on 915 MHz

TR 1.2 Test Transmitter Mobility¶

Be mobile so that the terrestrial tests can be done by adding distance between the transmitter and Ground Sphere receiver

TR 1.3 Be easy to assemble from kit components¶

TR 1.4 Be easy to assemble from kit components¶

TR 1.4.1 Tools for assembly¶

The Ground Sphere Test Transmitter will only require simple tools (screw drivers, pliers, wrenches, etc) for assembly

TR 1.4.2 Time to assemble¶

The Ground Sphere Test Transmitter will take no longer than 60 minutes (threshold)/30 minutes (objective) to assemble by an average maker

TR 1.5 Have low shipping costs for the packaged kit¶

The Ground Sphere Test Transmitter kit will cost no more than $15 (threshold)/$7.50 (objective) to ship by ground across the USA.

TR 1.6 Operate using a modern Windows PC¶

TR 1.6.1 Software must run on Windows¶

The Ground Sphere Test Transmitter software must run on Windows 7 or Windows 8 (32bit or 64bit)

TR 1.6.2 Software must be easy to install¶

The Ground Sphere Test Transmitter software must ship in a Windows installer

TR 1.7 Hardware must connect to PC using standard port(s)¶

The Ground Sphere Test Transmitter radio must connect to the ground station computer through a commonly available port (for example: USB)

TR 1.8 Hardware must be robust¶

The Ground Sphere Test Transmitter hardware should minimize the opportunity for mechanical failures (from things such as broken connectors or a lack of strain relief)

Project Requirements¶

PR 1.1 Number to produce¶

The Ground Sphere Test Transmitter design must enable the production of at least 30 +/- 5 v1.0 kits by volunteers in one or more makerspaces

PR 2.1 Budget¶

PR 2.1.1 Unit cost¶

The materials cost must be under $75 per kit.

PR 2.1.2 Development cost¶

The project budget (covering three prototypes) must be no more than $200 (threshold)/$100 (objective)

PR 3.1 Timeline¶

Version 1.0 of the Ground Sphere Test Transmitter will be ready for kit production no later than Feb 14, 2014.