Transmitter
A transmitter is a device sending crystals back to your home planet.
Building transmitters
When you build a transmitter you need at least a rack and a crystal cube of each color.
The level (= score) of the transmitter is the lowest value of a crystal cube in a color and then squared. (Example: Cubes of level 2,3,4,3,4 gives you 2 as the lowest and then squared, 2 * 2 = 4.)
Placing transmitters
A transmitter is placed on your current location and is then used for caculating the score.
See Scoring