Difference between gyro and magnetic compass
Reference point is true north.
It requires constant power supply.
Can be connected with large amount of equipments which require compass feeding.
Errors: high or low.
Equipment errors – wondering
error, permanent error, latitude
error, speed error.
It can be used near the earth’s magnetic poles.
Reference point is magnetic north.
It does not require constant power supply.
It is not possible to feed magnetic compass to any number of equipments.
Errors: deviation and variation.
Equipment errors – deviation and variation.
It can not be used near the earth’s magnetic poles.
At higher latitude, magnetic compass becomes inaccurate.