Setting The Echo Screen Data - NorthStar 972 Quickstart Manual And Reference Manual

The A-scope with dual frequencies
If you're displaying both 50 and 200 kHz
echoes, the A-scope magnifies echoes from
the frequency shown on the right side of
the screen.

Setting the ECHO screen data

Numeric and graphic information can be
displayed on top of the echoes, including
bottom depth, water temperature, and
speed through the water (STW).
To access these functions, press More, and
then Data.
Note that the temperature and speed menu
keys don't appear if the sensors are not
configured. Sounder configuration settings
are found on the Sounder Options screen
(see Echo Sounder setup, starting on page
112.)
Speed through the water
Press Speed to turn the Speed Through the
Water display on or off. STW is displayed
on the bottom right corner of the screen.
Temperature box
Press the Tmp box key to set the size and
location of the box displaying the water
Reference Manual Revision B
The A-scope with zoom mode
If you're in zoom mode, the A-scope
magnifies the unzoomed echoes on the
right side of the screen.
temperature (white numbers on a black
background).
Press this key again to cycle through the
available sizes: off, small, medium, large,
and huge.
Temperature graph
Press Tmp graph to turn the temperature
graph on or off.
The temperature graph displays a tempera-
ture scale at the left of the screen, and an
orange line tracing out the varying water
temperature measurements, superimposed
on the echoes.
Bottom depth box
Press Depth box to set the size and location
of the box displaying the bottom depth
(white numbers on a black background).
Reference section 7 — Echo sounding
Setting the ECHO screen data
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