Range Recorder

Range Recorders are instruments used in navigation to record and measure the range or distance between two points. They are commonly used in marine navigation to determine the distance between a ship and a fixed point, such as a lighthouse or a navigational buoy.

Range Recorders typically consist of a display unit and a transceiver. The transceiver emits a signal, such as a radar or sonar pulse, which is then reflected back by the target object. The time it takes for the signal to travel to the target and back is used to calculate the range.

The display unit of a Range Recorder usually shows the measured range in either nautical miles or meters. Some advanced models may also provide additional information, such as the bearing or direction of the target object.

Range Recorders are essential tools for safe navigation, as they help mariners determine their position relative to known landmarks or hazards. They are commonly used in conjunction with other navigational instruments, such as GPS systems and charts, to ensure accurate and reliable navigation.

In summary, Range Recorders are navigational instruments used to measure and record the range or distance between a ship and a fixed point. They are important tools for safe and accurate navigation in marine environments.