119
Reference section 7 — Echo sounding
Setting the ECHO screen data
Reference Manual Revision B
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.
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.
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
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).
Содержание 972
Страница 1: ...Northstar 972 Quickstart Guide and Reference Manual Revision B ...
Страница 12: ...8 Getting Started Purchasing charts Northstar 972 ...
Страница 19: ...15 Displaying the chart screen Quickstart Guide Revision B Chart screen ...
Страница 30: ...26 SAVE and Man Overboard MOB Northstar 972 ...
Страница 44: ...40 Reference section 1 Using the Chart Screen Using the distance and bearing calculator Northstar 972 ...
Страница 54: ...50 Reference section 3 Position coordinates Using Phantom Loran Northstar 972 ...
Страница 88: ...84 Reference section 5 Creating waypoints and routes Transferring waypoints to and from a PC Northstar 972 ...
Страница 90: ...86 Reference section 6 Radar Transferring waypoints to and from a PC Northstar 972 ...
Страница 106: ...102 Reference section 7 Echo sounding MARPA targets Northstar 972 ...
Страница 130: ...126 Reference section 7 Echo sounding Troubleshooting the echo sounder Northstar 972 ...
Страница 131: ...127 Reference Manual Revision B Reference section 8 Video Video sources 128 Displaying video 128 ...
Страница 134: ...130 Reference section 8 Video Displaying video Northstar 972 ...
Страница 135: ...131 Reference Manual Revision B Reference section 9 Alarms and TideTrack Alarms 132 TideTrack 137 ...
Страница 145: ...141 Reference Manual Revision B Reference section 10 Networking General information 142 Restrictions 142 ...
Страница 148: ...144 Reference section 10 Networking Restrictions Northstar 972 ...
Страница 158: ...154 Reference section 11 Setup Changing the time zone Northstar 972 ...
Страница 164: ...160 Reference section 11 Appendix A Datum list Changing the time zone Northstar 972 ...
Страница 168: ...164 Northstar 972 Notes ...
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