Simrad SP60 - REV D, Installation Manual

Page: 156 / 218

Simrad SP60
140
851-164574 / C
Figure 44 Source Level (SL) measurements
TX enable
(CD5873)
TX
enable
External trigger
Vertical input
Oscilloscope
t (ms)
5 to 10 meters
Transducer
Hydrophone
0.5 ms
Up-p
46 49
Transceiver Unit
E201
3 Use a weight to keep the hydrophone in a stable vertical
position.
4 Lower the hydrophone and adjust the tilt on the sonar to get
maximum voltage on the oscilloscope at a tilt angle of 0
degrees.
5 Measure the time delay from the negative going TX Enable
pulse to the transmitter pulse on the oscilloscope.
6 Enter the result into the Measurements results table.
→
The Measurement results table is shown as table 4 on page
141.
7 Read the peak-to-peak value of the transmitter pulse U(p-p).
8 Enter the results into the Measurements results table.
→
The Measurement results table is shown as table 4 on page
141.