CU of an apparatus for demonstrating the rating operation of the antenna extender for use in satellites. TILT DOWN from an extending antenna to the mechanism of a motorized antenna extender. HACU of the mechanism, the antenna extending. Shots of a technician examining what could be panels of solar cells. Cut to other satellite components being tested in a shop. Various CUs of electronic hardware including multicoloured wiring, circuits. CUs of an oscilloscope screen, of the hand of a technician pressing buttons, a needle on gauge flickering. Shot of green tinge circuits being revealed as a panel slides to one side. Shot of a chart.