What is the maximum range of sonar?

Sonar systems used in warfare must detect targets at a reasonable distance and this constrains the working frequency range to about 1–100 kHz, with a typical wavelength of 1.5 m–1.5 cm.

How far can sonar detect submarine?

In particular, an average detection range of 5 km will result in the upper limit “corridor” fluctuating from 2-3 to 8-9 km (model A). The tracking submarine will hardly be able to respond adequately to such changes during long periods of weeks and months.

Can you use sonar on land?

Originally Answered: Can sonar work on land? Echo-location works in the air. It’s used by some animals to navigate and locate prey. As far as taking naval sonar straight out of a ship/sub and trying to use it on land will have interesting, but not useful, results.

Do submarines ever use active sonar?

Most subs have two types of sonar: active and passive. If the ping bounces back, that means it hit an object—like a whale, a ship, or another submarine. But stealth subs often avoid active sonar, since the ping could give away their location. Instead, they use passive sonar, which merely detects sounds.

What sonar frequency should I use for maximum depth?

For maximum depth, use lower frequencies. For the greatest resolution, the least background noise on your screen, or the best view from a fast-moving boat, use higher frequencies. If you’re using a traditional, single fixed frequency Broadband or digital sonar, we recommend 200kHz for water depths up to 200′ and 80kHz or 50kHz for deeper waters.

How far can sonar detect a target?

The simple fact, it depends on the frequency. Low frequency active sonars can detect targets at very long disctance, depending on the sound propagation environment. High frequency sonars (>100kHz), typically used for minehunting or underwater inspection can see smaller targets at a few hundreds meters.

Can a sonar reach the bottom of the Marianer trench?

None of the factors above will prevent a sonar from reaching that depth. A military sonar will not reach the bottom of the Marianer trench (about 11 000 meters), but nor does it need to.

What is the best sonar for deep-water fishing?

Here is a quick breakdown of some options in the new world that includes high-frequency and CHIRP sonar: Low CHIRP (25-80kHz) or 50kHz: Lower frequency means maximum depth penetration for deep-water fishing. For greatest depth with a traditional 50kHz transducer, choose a sounder with 1-2kW of power.