Marine Sea Scan Manual page 19

The SONAR Control Window
CAUTION:
in the waterfall; without that feedback to the boat operator, the towfish may hit bottom.
Speed Over Ground
© 2013 Marine Sonic Technology, Ltd.
Sonar Power
On Button: Turns the Sonar Power on; the SONAR will now collect
data.
Off Button: Turns the Sonar Power off and stops data collection.
Transducers
Select the frequency here to use on your SONAR. If no options
appear here, please consult the Troubleshooting section of this
guide. If you have a single-frequency transducer, only one option
will show.
The Lock check box will set both frequencies to the same frequency.
If one is changed, both are changed. It should be left checked by
most users.
Range
Change the range of the SONAR here. Click the arrows to the left or
right or select the drop-down arrow from inside the box to select a
frequency of your choice.
Range Delay
This setting removes the water column. Range delay removes the
acoustic returns for the amount of feet desired.
If using this option to remove the water column, the towfish no longer shows
The Speed-Over-Ground group of selections lets you set the SOG to
either manual or automatic. The speed box will change to yellow and
then red as the speed becomes greater than what is recommended for
the frequency and range. Most users should select Automatic.
Sea Scan Survey 15