The need of the system has to be announced in cruise planning document "Einsatzplanung" prior to the cruise.

The mounting of USBL antenna is executed by ships crew, the operation of the system must be executed by experienced scientific staff.

GAPS underwater communication is conducted by using various frequencies, interferences with simultaneously operating Echo Sounders are possible.

Attention: Submarine cable must be connected and device must be submerged in water before activating GAPS.

Summary

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Transducer Frequency: 

Contacts
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Components
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Position
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Data logging, storage and archiving
Logged parameters
Central geographical ship's position and time standard
 Rawdata storage on board 
Dship
Data archiving on land
Documentation
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