Simrad EY500, Инструкция по эксплуатации

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Operation
34
P3402/C
TVG Options:
20 log R
40 log R
This parameter controls which transmission loss
compensation algorithm is to be used (TVG = Time
Variable Gain). 20 log R is selected for echogram
presentation of volume back-scattering strength, and 40
log R for presentation of target strength.
Scale Lines Options:
0 to 250 lines in steps of 1
Allows you to enter a number of equidistant scale lines
across the echogram. Scale lines disabled by setting
value to 0.
Bot. Det. Line Options:
OFF
ON
A black line is introduced in the echogram at the current
depth, when set to ON.
Layer Lines Options:
OFF
ON
This command allows you to include layer lines in the
echogram. The selected super layer lines have red colour,
and all other layer lines are black.