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Simrad CP60 Installation Manual
Related topics
Setting to work, page 108
Test procedures, page 173
Making a noise/speed curve to determine vessel noise
The performance of the CP60 system will always be limited by different noise sources.
During this test, noise measurements are done for different vessel speeds. The weather
and sea conditions for the noise measurements will be those at the time of the test.
Prerequisites
The CP60 system is turned on and operates normally. All the relevant transceivers have
been set up, and they are operational with their respective transducers.
Make a note of the sea state and wind at the time of the test.
You need the following equipment:
• Personal computer
• Spreadsheet program
Context
In order to measure the noise, you must record the noise value using the tooltip in the
echogram. Since the noise will vary with each ping, you must make five measurements
for each vessel speed, and then calculate the average noise. You must measure the noise
for each single channel, but you can do all these measurements simultaneously.
Tip
If you record all the raw data during the noise test, you can repeat the test later using
the replay file. You may then use more than five noise samples for each vessel speed
to make a more accurate curve.
Procedure
1
To select Passive mode, use the
a
Open the
Operation
b
Select
Normal Operation
c
For each transceiver channel, set
d
Select
OK
Note
If you set
to Passive, your CP60 system will no longer provide any information
Mode
in the echogram(s).
190
Preliminary version 2022-07-26
Normal Operation
menu.
.
to save the selected settings and close the dialog box.
dialog box.
to Passive.
Mode
110-0006927/A (Preliminary)
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