Sonar FAQs:


Q: Is a sonar essentially listening for the sound made by vessels?

A: Yes, active sonar is emitting pulses of sounds and listening for echoes.

Q: Was a sonar a large array of 432 individual transducers?

A: Yes.

Q: Are sonars loosely defined as 1–5 kHz?

A: Yes, and albeit some navies regard 5–7 kHz also as low frequency.

Q: Is a sonar stealthy and very useful?

A: Yes.

Q: Is a sonar similar in appearance to a waterproof flashlight?

A: Yes.

Q: Is a sonar normally considered a backup to passive sonar?

A: Yes.

Q: Is a sonar used in the form of disposable sonobuoys that are dropped in the aircraft's patrol area or in the vicinity of possible enemy sonar contacts?

A: Yes.

Q: Is a sonar an echo-sounder with a directional capability that can show fish or other objects around the vessel?

A: Yes.

Q: Is a sonar to determine the target's trajectory?

A: Yes.

Q: Are sonars hull mounted but a few types are VDS design?

A: Yes.

Q: Was a sonar used by surface craft in World War II?

A: Yes, and submarines avoided the use of active sonar due to the potential for revealing their presence and position to enemy forces.

Q: Are sonars also used?

A: Yes.

Q: Are sonars more adversely affected by nonhomogenities of water?

A: Yes.

Q: Is a sonar the SQS-56?

A: Yes.

Q: Is a sonar similar to radar in that?

A: Yes, while it allows detection of targets at a certain range, it also enables the emitter to be detected at a far greater range, which is undesirable.

Q: Is a sonar used?

A: Yes, and scattering occurs from small objects in the sea as well as from the bottom and surface.

Q: Is a sonar used to measure the distance from the transducer to the bottom?

A: Yes, and it is known as echo sounding.

Q: Were sonars later replaced with Type 3, which followed German design and used magnetostrictive projectors?

A: Yes, the projectors consisted of two rectangular identical independent units in a cast iron rectangular body about 16×9 inches.

Q: Are sonars used monostatically with the same array often being used for transmission and reception?

A: Yes.

Q: Is a sonar Sonar 2087 made by Thales Underwater Systems?

A: Yes.

Q: Are sonars primarily active in operation?

A: Yes.

Q: Were sonars usually with hull mounted arrays?

A: Yes, and either amidships or at the bow.

Q: Is a sonar the Type 2193 while the SQQ-32 Mine-hunting sonar and Type 2093 systems are VDS designs?

A: Yes.

Q: Are sonars used for looking ahead of the vehicle?

A: Yes.

Q: Is a sonar also used for the equipment used to generate and receive the sound?

A: Yes.

Q: Is a sonar used by surface ships or submarines?

A: Yes, and it is typically activated very briefly at intermittent periods to minimize the risk of detection.

Q: Are sonars used for more detailed surveys of smaller areas?

A: Yes.

Q: Is a sonar also used to measure distance through water between two sonar transducers or a combination of a hydrophone and projector?

A: Yes, A transducer is a device that can transmit and receive acoustic signals. When a hydrophone/transducer receives a specific interrogation signal it responds by transmitting a specific reply signal.