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1. OPERATIONAL OVERVIEW
1-11
Note: Normally, pulses are fired from beam 1, beam 2 and beam 3 in that order and
displayed on the screen as the port, downward and starboard images. When the
display range of the 3-beam display is higher than 1000 m, the menu bar shows
“Simul. TX”. To fire pulses from beam 1 – 3 simultaneously click the Simul TX
indication to show ON. When this is done the picture advance speed quickens.
However, the display becomes susceptible to unwanted echoes. The default Simul
TX detection range is 1000 m. This value can be set between 100 and 5000 m. For
further details, see page 3-6.
Menu for turning
simultaneous
transmission on or off
Simul. TX
Simultaneous transmission options
1.5.4 Split-beam + two-beam display
The split-beam + two-beam display provides a split-beam plus images captured from the
port and starboard sides.
TS
Split-beam display
B:270.0
T: 10.0
B: 90.0
T: 10.0
20
40
60
80
0
20
40
60
80
0
20
40
60
80
0
Beam 1
(Starboard)
Beam 2
(Port)
Split-beam + two-beam display
Note: When the display range for the split beam + two beam presentation is 1000 m or
higher, “Deep Mode” and “Simul Tx” appear in the menu bar. To enable the deep
mode or simultaneous transmission, click the appropriate item on the menu bar
followed by clicking ON.