Installation manual

Simrad SD570 / Base version
44
851--160117 / B
8.4 Noise/speed curve
To make a noise/speed curve of the ship, make the following
settings in the menu:
RANGE......: 3500 M
GAIN.......: 50
MODE.......: BOW UP
TRANSMIT...: MONO
PULSEFORM..: CW-NORM
TX POWER...: OFF
PINGSECTOR.: OMNI
TVG........: OFF
AGC........: OFF
RCG........: OFF
PP-FILTER..: OFF
COLOURTHRES: 0
DISPLAYGAIN: 9
Now, when entering the TEST in the menu, the text ECHO LEVEL
will be followed by the dB value of the ship’s noise.
To make the noise/speed measurements, start with 0 knots with
the engine running, and turn the audio line to the different
bearings which are shown in table 7. When a new bearing is
selected, wait at least 10 seconds before making a readout of the
new ECHO LEVEL. Enter the results into the table.
Increase the speed in steps of two knots and make the readouts
when the speed is stable for the selected engine thrust.