Triton Perspective - Manual (Page 168)

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The default TVG curve is set to be flat, as shown in the image above. To change the TVG
curve there are two options.
1. Left mouse click anywhere in the TVG window and a node will be added at that spot.
2. Left mouse click on an existing node and drag it to a new location by holding the
mouse button down.
The sidescan data in the waterfall viewer will automatically update as the TVG curve is
changed to get instantaneous feedback of how the changed curve affects the data display.
TVG options available in the 'TVG Settings' window are:
Start At: Sets where the TVG function starts.
 Transmit - Starts at the beginning of the transmission.
 First Return - Starts at the defined bottom track.
+ / - Buttons: These are to the left of the TVG curve window and adjusts the maximum
gain for the TVG curve.
After the TVG curve is defined, the user has the option to save the curve using the 'Save TVG
Settings' button. This will launch a browser window for choosing a name and file location
for the TVG curve as shown: