Bridge Equipments 13 Questions Ask question Search Order By: NewTagClear Filter can you explain about Gyro compass in details? How to use sextant to get the ship’s position? How to order cells on JRC ecdis by using chartco ? What are source of information to fill in the spot sounding box for transas ecdis? How to take sextant altitude of stars, moon? is it possibe when its very dark? Why ECDIS cannot or should not be used for collision avoidance? what’s stand regulation of nav warning and T&P if face to SIRE inspector? JRC ECDIS ,CHARTCO Is it compulsory to apply weekly corrections to the ENCs every week or I can wait for update DVD ? Is there any input (parameter) into the radar for the ship`s length, which eventually influences the cpa ? in other words is the cpa calculated from the point where the antenna is installed ( plus the ship`s length or without the ship`s length ? ) e.g. for a ship of 300 m, the given cpa is for the bow or the antenna location ? If the GPS position is inaccurate, What indication one will have besides checking GDOP value? Where can i get the activation key for the UKC Manager demo version? Its for school purposes. As per rule 7 to determine ROC, should compass brg be corrected to true brgs What are the errors of gyro compass and difference between ballastic tilt and ballastic deflection