A-tag

Towed range-wide monitoring

Fixing A-tag on the rope.

Use a plastic band at the end of A-tag.

Similarly in the middle.

Fix the hydrophone stay as well. NOTE THAT DO NOT FIX WHITE STAY WHICH CONTAINS HYDROPHONE CABLE.

Cut extra plastica cables.

Round A-tag by electric tape.

Round A-tag by electric tape.

BE CAREFUL NOT TO ROUND THE HYDROPHONE (THE BLACK ONE).

Fixed on the rope completely.

Wear groves.

Extend the rope from the tail.

Release A-tag gently.

If nessessary, add a float to prevent bottom touching.

If nessessary, add thicker rope to extend longer.

If nessessary, offset towing point using a rod that avoid noise contamination by bubbles behind the own ship.

Make sure stable towed condition.

Wear rrove and retrieve the rope.

Put rope in a container. No need to coil the rope. Just put it in. It is easy to deploy again.

Put A-tag in the container, too.

All of the monitoring systems are in the plastic box. You can carry to your lab or accommodation.

Download data.

Data analysis.

More examples click