About Spread Sensors

Port Stbd		Asks for answer
		Answers
		Sends data to the receiver (door spread distance, bearing, pitch and roll, depth...)

• The port sensor (1) interrogates the starboard sensor (2) to know the distance between them (A). Then, it sends the distance to the receiver.
• The sensors send data such as bearing, temperature, depth, pitch and roll to the receiver.

PortStbd		Asks for answer
		Answers
		Sends data to the receiver (door spread distance, bearing, pitch and roll, depth...)

• The port sensor (1) interrogates the clump (2) and starboard sensors (3) to know the distance with each one. Then, it sends the two distances (A, B) to the receiver.
• All sensors send data such as bearing, temperature, depth, pitch and roll to the receiver.

Port Stbd		Asks for answer
		Answers
		Sends data to the receiver (door spread distance, bearing, pitch and roll, depth...)

• The port sensor (1) interrogates the clump (2) and starboard sensors (3) to know the distance with each one. Then, it sends the two distances (A, B) to the receiver.
• The clump sensor (2) interrogates the starboard sensor (3) to know the distance between them. Then, it sends the distance (C) to the receiver.
• All sensors send data such as bearing, temperature, depth, pitch and roll to the receiver.

If you use two separate trawls, you need to install two sets of spread sensors. You can install them in two different ways: in the same way as for a single trawl on each trawl, or if you want to have the spread distance between the two inner doors, you can set up the following installation:

PortStbd		Asks for answer
		Answers
		Sends data to the receiver (door spread distance, bearing, pitch and roll, depth...)

• The port sensor (master) (1) interrogates the starboard sensor (clump) on the port trawl (2) and the starboard sensor (slave) on the starboard trawl (3) to know the distance with each one. Then, it sends the distances (A and B) to the receiver.
• The starboard sensor (clump) on the port trawl (2) interrogates the port sensor (slave) on the starboard trawl (3) to know the distance between them. Then, the distance (C) to the receiver.
• The port sensor (master) on the starboard trawl (4) interrogates the starboard sensor (slave) on the starboard trawl (5) to know the distance between them. Then, it sends the distance (D) to the receiver.
• All sensors send data such as bearing, temperature, depth, pitch and roll to the receiver.