As shown in the illustrated digital gyrocompass functional block diagram and the associated communication protocols table, what would the rate of turn signal voltage be if the rate of turn is 30 degrees per minute to port? Assume that the rate of turn to port signal voltage is negative in polarity and that the rate of turn to starboard signal voltage is positive in polarity. EL-0194

Illustration EL-0194: the U.S. Coast Guard has not released this illustration.

Question

As shown in the illustrated digital gyrocompass functional block diagram and the associated communication protocols table, what would the rate of turn signal voltage be if the rate of turn is 30 degrees per minute to port? Assume that the rate of turn to port signal voltage is negative in polarity and that the rate of turn to starboard signal voltage is positive in polarity. EL-0194

Illustration EL-0194: the U.S. Coast Guard has not released this illustration.

Accepted Answer

Option C: -1.5 VDC. Digital gyrocompass interface protocols define rate-of-turn output scaling voltages. Based on standard conversion factors where port turns yield negative polarity, a rate of 30 degrees per minute to port proportionally drops the signal output to -1.5 VDC at the designated system terminals.