Kongsberg Simrad ST90, Reference Manual

Page: 256 / 690

254
442704/A
Testing the noise conditions and the sonar
functionality
Topics
Checking the status of the transceiver boards, page 254
Checking the transducer by means of the Diagnostics functionality, page 256
Measuring the noise in passive mode, page 260
Making a noise/speed curve to determine vessel noise, page 262
Measuring flow noise, page 266
Checking the status of the transceiver boards
The purpose of the
Diagnostics
dialog box is to allow on-line testing and verification of the
hardware components in the ST90 system. The
Transceiver
page offers key information
about each transceiver board in the Transceiver Unit.
Prerequisites
Neither tools nor instruments are required.
• The ST90 system is turned on and operates normally.
• The ST90 system is in Normal mode, but
TX Power
is set to Off to prevent transmissions.
• The transducer is retracted to its upper position.
• The vessel is berthed or at sea. We recommend that the test is done with the vessel at sea.
Caution
You must never set the ST90 system to "ping" unless the transducer is submerged in water.
The transducer may be damaged if it transmits in open air.
Context
By means of the
Diagnostics
functionality, you can easily determine if the hardware
components in the ST90 system are operational. And most important, you can make sure
that all the transceivers channels and transducer elements are functional. Each button
provides a small colour coded indicator.
•
No indicator
: Status is OK. No actions are necessary.
Simrad ST90 Reference Manual