Channel 7 Value Percent Function 0–5 6 – 42 43 – 85 86 – 128 129 – 171 172 – 214 215 – 255 0 – 1% 2 – 16% 17 – 33% 34 – 50% 51 – 67% 68 – 83% 84 – 100% Special effect No effect Ramp up Ramp down Ramp up-down Random Lightning Spikes 19