Simrad EY500, Instruction Manual

Page: 40 / 262

Operation
6
P3402/C
Figure 1. Display layout.
The printer echogram may contain all the information of the display echogram,
as well as the additional elements:
Nautical mile marker
Annotation
Date and time
TS distribution tables
Integration tables
Navigation text
Identification for range, TVG and colour sensitivity
The various elements of the display and printer echograms are described in
paragraphs 1.2.3 and 1.2.4.
1.2.2 The colour scale
The echogram has a colour scale which is proportional to the strength of the
signals. The echo strength is divided into twelve colour categories, the weakest
corresponding to grey and the strongest to brown. The scale is logarithmic with
a 3-dB step between each colour, which gives the colour scale a dynamic range
of 36 dB from the weakest to the strongest echo signal.