Simrad S2009, User Manual

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Advanced options
Noise rejection
Signal interference from bilge pumps, engine vibration and air bubbles can clutter the
image.
The noise rejection option filters the signal interference and reduces the on-screen clutter.
TVG
Wave action, boat wakes and temperature inversions can cause onscreen clutter near the
surface. The TVG (Time Variable Gain) option reduces surface clutter by decreasing the
sensitivity of the receiver near the surface.
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Note:
For optimal image return and clarity in most conditions, the default value is set to
a low value.
Scroll speed
You can select the scrolling speed of the image on the screen. A high scroll speed updates
the image fast, while a low scroll speed presents a longer history.
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Note:
In certain conditions it may be necessary to adjust the scroll speed to get a more
useful image. Such as adjusting the image to a faster speed when vertically fishing
without moving.
Ping speed
Ping speed controls the rate the transducer transmits the signal into the water. By default,
the ping speed is set to max. It may be necessary to adjust the ping speed to limit
interference or to adjust for specific fishing conditions.
Recording log data
Start recording log data
You can start recording log data and save the file internally in the unit, or save it onto a card
inserted into the unit’s card reader.
The record function is activated from the
Advanced
menu option.
When the data is being recorded, there is a flashing red symbol in the top left corner and a
message appears periodically at the bottom of the screen.
When you select Record in the Advanced menu, the
Record sonar log
dialog is displayed
where you specify recording settings. The options are explained in the following topics.
Filename
Specify the name of the recording (log).
File format
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Note:
XTF format is for use only with select 3rd party Echosounder viewing tools.
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Advanced options | S2009-2016 Fish Finder User Manual