How do boat radars work?

It works by sending out a radio signal. When the signal hits an object, it gets reflected back to the radar, which can then calculate a rough estimate of the object. It does so by detecting other ships and land obstacles, to give bearing and distance for collision avoidance and navigation while on water.

Why do boat radars spin?

The spinning radar on a boat is a unit that usually sits at the highest part of the structure. It scans the horizon to pick up any radiomagnetic signals from objects within range over a 360-degree pattern.

What is the spinny thing on ships?

The two “spinning things” on top of a ship are radar antennas. The larger one (higher up) is for the 10cm radar which has a longer range and the smaller one is for the 3cm radar. Generally speaking, when at sea, both radars are running however, most use the 10cm.

How do antennas work?

The Antenna can send commands from the attached ship to other ships with Antennas. Any block marked to show on HUD will broadcast its location, but only if there is an antenna on the ship to send the information. Additionally, Antennas will relay any information they receive to friendly antennas within their range.

What is shipboard antenna modeling?

Shipboard antenna modeling uses brass models in a lead “sea”. Receiver probes are inserted from a room underneath the model while test signals are transmitted from the gantry. The model is 1/48 scale and the frequencies used are 48 times higher than actual. Newer computer modeling is also used.

How can miniature ships help us to improve Antenna directivity?

This problem is attacked at the US Navy Electronics Laboratory, San Diego, California, by the use of miniature ships whose topside structures are precisely scaled counterparts of full-sized naval vessels. these models make it possible to conduct investigations of shipboard antenna directivity under controlled conditions on land.

How does a satellite phone work offshore?

The nearest tower can be dozens of miles away, but the exterior antenna sends the faint signal through an amplifier, which boosts it to a usable level. Finally, the amplifier sends the boosted signal to an interior antenna, which broadcasts it throughout the offshore location.