Simrad GN70 User manual

ENGLISH
GN70/MX610/MX612
Operator and Installation Manual
navico.com/commercial

Preface | GN70/MX610/MX612 Installation and Installation Manual | 3
Preface
Disclaimer
As Navico is continuously improving this product, we retain the right to make changes to the
product at any time which may not be reflected in this version of the manual. Please contact
your nearest distributor if you require any further assistance.
It is the owner’s sole responsibility to install and use the equipment in a manner that will
not cause accidents, personal injury or property damage. The user of this product is solely
responsible for observing safe boating practices.
NAVICO HOLDING AS AND ITS SUBSIDIARIES, BRANCHES AND AFFILIATES DISCLAIM ALL
LIABILITY FOR ANY USE OF THIS PRODUCT IN A WAY THAT MAY CAUSE ACCIDENTS, DAMAGE
OR THAT MAY VIOLATE THE LAW.
Governing Language: This statement, any instruction manuals, user guides and other
information relating to the product (Documentation) may be translated to, or has been
translated from, another language (Translation). In the event of any conflict between any
Translation of the Documentation, the English language version of the Documentation will be
the official version of the Documentation.
This manual represents the product as at the time of printing. Navico Holding AS and its
subsidiaries, branches and affiliates reserve the right to make changes to specifications
without notice.
Compliance
The GN70/MX610/MX612 system complies with the following regulations:
• MED 96/98/EC as amended by directive (EU) 2015/559
• CE (2004-108 EC EMC Directive)
• C - Tick
For more information please refer to our website:
www.navico.com/commercial and www.simrad-yachting.com
The Wheelmark
The GN70/MX610/MX612 system is produced and tested in accordance with the European
Marine Equipment Directive MED 96/98/EC as amended by directive (EU) 2015/559. This
means that the systems comply with the highest level of tests for nonmilitary marine
electronic navigation equipment existing today.
The Marine Equipment Directive 2010/68/EC (MED), as amended by 2011/68/EC for ships
flying EU or EFTA flags, applies to all new ships, to existing ships not previously carrying such
equipment, and to ships having their equipment replaced.
This means that all system components covered by annex A1 must be type-approved
accordingly and must carry the Wheelmark, which is a symbol of conformity with the Marine
Equipment Directive.
Navico has no responsibility for the incorrect installation or use of the navigation eauipment,
so it is essential for the person in charge of the installation to be familiar with the relevant
requirements as well as with the contents of the manuals, which covers correct installation
and use.
FCC
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful

Preface | GN70/MX610/MX612 Installation and Installation Manual
4 |
interference, which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna
• Increase the separation between the equipment and receiver
• Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected
• Consult the dealer or installer technician for help.
Copyright
Copyright © 2016 Navico Holding AS.
Warranty
The warranty card is supplied as a separate document.
In case of any queries, refer to our websites:
www.navico.com/commercial and www.simrad-yachting.com
About this manual
This manual is a reference guide for operating the Simrad GN70/MX610/MX612 navigation
system.
The manual will be continuously updated to match new software releases. The latest available
manual version can be downloaded from our websites.
Important text that requires special attention from the reader is emphasized as follows:
¼Note: Used to draw the reader’s attention to a comment or some important information.
Warning: Used when it is necessary to warn personnel that they
should proceed carefully to prevent risk of injury and/or damage to
equipment/personnel.

| 5
Contents | GN70/MX610/MX612 Operator and Installation Manual
Contents
7 Introduction
7 GN70/MX61x Front Panel and Keys
8 CDU pages
11 Basic operation
11 Light/Power key
11 PAGE key
12 MENU key
12 Dialog boxes
13 MOB (Man-Over-Board)/Mark key
14 Main pages
16 Menu overview
16 Quick Menus
17 Settings dialog and submenus
19 Tools dialog and submenus
21 Tools page
22 AIS (Vessel info)
22 Alerts
22 Satellites
22 Waypoints/routes/tracks
23 Trip Log
23 Sun/moon
23 Tides
24 System Conguration
24 General
24 The Quick Menu Dialog and Submenus
24 Network Settings
39 Waypoints, Routes & Tracks
39 Waypoints, Routes and Tracks panels
39 Waypoints
40 Routes
42 Tracks
44 Navigating with the GN70/MX61x
44 Goto Menu
44 Navigate a Route
44 Navigation Settings Panel
46 Navigation Panels
48 HDG screens
48 Quick Menu
48 Data Source Selection
49 Advance Data Source Selection
49 Heading reference control
50 Using AIS (PLOT)
50 Target symbols
51 Viewing information about AIS targets
51 Vessel alarms

6 |
Contents | GN70/MX610/MX612 Operator and Installation Manual
52 Vessel settings panel
54 Alert system
54 Type of messages
54 Alert indications
55 Acknowledging a message
55 Alerts dialog
58 Using the simulator
58 Simulator mode
58 Simulation setup
59 Maintenance
59 Preventive maintenance
59 Simple maintenance procedures
59 Trouble shooting
61 Software upgrades
64 List of components
67 Mounting
67 General
67 Mounting location
67 GN70/MX61x control unit
69 Antenna systems
70 MX61xJB junction box
70 MX610JB mounting
70 MX612JB Mounting
71 GN70/MX610/MX612 display unit (mechanical dimensions)
72 GS70 antenna unit
72 MX521A/MX521B smart D/GPS antenna unit
73 HS80/HS80A/MX575C/MX575D D/GPS compass unit
73 MX610JB smart junction box unit
74 MX612JB smart junction box unit
75 Wiring
75 Wiring guidelines
75 GN70 or MX61x navigation system; basic wiring principles
76 CAN bus
77 Power supply
79 NMEA 2000 and SimNet devices
79 IEC61162-1/2 (NMEA 0183) Devices
80 Alarm interface
88 Specications
88 Technical specifications
88 GN70/MX61x control unit
89 MX61xJB junction box
92 GN70/MX61x Connector Pinouts
93 Supported data
96 List of abbreviations
97 Index

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Introduction | GN70/MX610/MX612 Operator and Installation Manual
Introduction
GN70/MX61x Front Panel and Keys
MOB
MENU
POS NAV HDG AIS
USB
9 10 11
1 2 3
12
4
8
USB
14 12
13
6
7
5
PAGE
ENT
CLR
No. Description
1PAGE key: Brings up different screen page every time this key is pressed or to
change tab in the settings and tools menu.
2MENU key: Brings up the quick menu dialog box.
3
POWER/LIGHT key
Short press will turn ON the unit.
Momentary press brings up the backlight and night view controls.
Series of short presses will cycle through 6 levels of display brilliance.
Long press will turn power off.
4
ROTARY KNOB: Rotate to scroll through menu icons or numbers in the virtual
keypad. Press the center of the knob to select menu item or accept entry. Same entry
action when you press the ENT key.
5CLR key: Press to clear, escape or back out of the menu or data entry.
6ENT key: Press to accept menu selection or data entry. Same entry action when you
press the center of the rotary knob.
7
MOB key: Short press will save the present position L/L into the next vacant
waypoint. Press and hold for 3 seconds will activate the Man-Over-Board (MOB)
function.
8POS hot key: Position page will display the present position Latitude, Longitude,
COG, SOG, Date and Time. Press repeatedly to show POS1, POS2 or POS3 pages.
9NAV hot key: Navigation page will display the navigation information.
Press repeatedly to show NAV1, NAV2 or NAV3 pages.
10
HDG hot key: Heading page will show the compass rose, Pitch, ROT and Yaw
information coming from a gyro or a GPS compass. Press repeatedly to show HDG1
or HDG2 pages.
11
AIS hot key: AIS page will display the PLOT screen showing your vessel, waypoints,
route and other navigation information. Will also show AIS targets when connected
to an AIS receiver via the NMEA 2000 network.
12
USB* door: To open, lift the right tab and slide the cover to the right. To close, slide
cover to left and push the tab down. Close USB door at all times to prevent moisture
intrusion.
13 USB* key: Press to view the files contained in the USB memory stick.
14 USB* Connector
*) Not for GN70
1

8 | Introduction | GN70/MX610/MX612 Operator and Installation Manual
CDU pages
Main pages
Position page Navigation page
Heading page AIS page
To view a main page, press the appropriate hot key at the bottom of the display, or toggle
between the pages by pressing the PAGE key repeatedly. The page number indicator in the
top left corner is also a “screen alive”indicator, fading slowly, sharp and weak.
Top right corner is a status indicator.
¼Note: See detailed information in “Main pages” on page 14
Settings pages
Settings Menu Tools Menu
Press the MENU key to open the Quick menu, then select Tools and Settings.
The Settings have two tabs: Tools and Settings. Press the PAGE key to toggle between the
Tools and Settings tabs.
Status Bar
Appears on all navigation screens. It indicates the GPS and RAIM status or if an alert is present
Normally, the status bar blinks off every 4 seconds to show what is behind it. This is not an
alert condition.

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Introduction | GN70/MX610/MX612 Operator and Installation Manual
Mode Indicator
Icon Description Definition
GP GPS Position Position displayed is calculated using GPS satellites
GN GPS +GLONASS
Position
Position displayed is calculated from combined GPS and
GLONASS satellites
¼Note: This feature is available in SIMRAD GN70/MX610/MX612 CDUs with software version
1.0.42.235 or higher.
GPS/GLONASS selection
By default, the SIMRAD CDU is set to navigate using the GPS satellite system. When using the
MX521B smart antenna or the HS80A/MX575D smart GPS compass models, the SIMRAD CDU
can be controlled to navigate using combined solutions from GPS and GLONASS satellites.
Setup procedure to use GPS and GLONASS satellites:
1. Press the MENU key.
2. Scroll to Tools & Settings menu, press ENT.
3. Scroll to GPS icon under the Settings page, press ENT.
4. Scroll to GNSS Mode, press ENT.
5. Scroll to GPS+GLONASS, press ENT.
6. Press the CLR key repeatedly or press any hot key to exit.
D/GPS Indicator
Icon Description Definition
No Position
fix
Not tracking satellites (no position update). This is normal
the very 1st time you turn on the unit. It takes a few
seconds to get a fix.
DGPS Position
Position Fix is differentially corrected using RTCM correc-
tions from beacon stations. This is the normal operating
condition. Position accuracy is better than 1 meter.
DGPS Position
Position Fix is augmented using the SBAS (WAAS, EGNOS
or MSAS) signal correction. Position accuracy is better
than 5 meters.
Note: SBAS correction is not an IMO compliant system.
Good GPS
position
GPS Position is good but selected DGPS correction is
temporarily not available. When DGPS mode menu is set
to either Beacon or WAAS.
Good GPS
position
Good GPS position fix indication when GN70/MX61x is
operated in autonomous GPS only mode DGPS mode
setting is OFF.

10 | Introduction | GN70/MX610/MX612 Operator and Installation Manual
RAIM Status
RAIM (Receiver Autonomous Integrity Monitoring) is a fault-detection feature required by
IMO for type-approved GPS units. It is another layer of safety that alerts the operator that
a condition may exist in the GPS positioning solution that reduces the desired accuracy of
the ship’s position. This feature requires at least five GPS satellites to operate properly, four
satellites or less will indicate a RAIM caution condition (R?). If the statistical RAIM error exceeds
a specified limit (100 meters-default) a RAIM Unsafe (R-) alert will be indicated. This means
that the RAIM estimated position error is equal or greater than the preset limit. The operator
is advised to take extra precautionary measures when using the navigation solution until the
RAIM indicator switches to RAIM safe (R+) condition.
The RAIM feature and RAIM Alert can be turned ON or OFF using the procedure below:
1. Press the MENU key.
2. Scroll down to Tools & Settings menu, press ENT.
3. Select the GPS icon, press ENT.
4. Scroll to Enable RAIM (or RAIM Alert), press the ENT key to remove or leave a check mark.
5. Press the CLR key several times or any hot keys to exit.
Alert icons
The system will continuously check for dangerous situations and system faults while the
system is running. When an alert situation occurs, an Alert icon will appear on the status bar.
If you have enabled the siren, an audible alert will be activated when an alert situation occurs.
Icon Description Denition
R+ RAIM Safe Position error is less than 100 meters (RAIM limit)
R- RAIM Unsafe Position error is equal or more than the 100 meter RAIM
limit
R? RAIM Caution Not enough satellites are available. RAIM requires 5 (or
more) satellites for proper operation.
Alert condition Active alert. Red icon for alarms, yellow for warning, see
also “Alert indications”on page 54.

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Basic operation | GN70/MX610/MX612 Operator and Installation Manual
Basic operation
Light/Power key
• Press and hold: Turn unit off
• Single press: To turn ON or display dialog for
light/night mode adjustment
• Repeated
presses:
Toggle preset brightness levels
(10 - 6 - 3- 1)
• Check box To switch to night mode operation
¼Notes:
1. The CDU goes through its boot-up routine as soon as external power is applied. It will be
ready to turn on in about 30 seconds. The succeeding turn on time will be instantaneous
thereafter as long as the external power is not disconnected.
2. If the POWER key is released before shut-down is completed, the power off is cancelled.
Night mode
The Night mode optimizes the color palette for low light conditions. To activate, rotate the
knob until the Night mode check box is highlighted, then press the ENT key.
¼Note: Details on the display may be less visible during Day time when the Night mode is
selected!
The display backlight can be adjusted in two ways by using the rotary knob (10 steps) or by
pressing the LIGHT/POWER key repeatedly.
PAGE key
Select Pages
You can view the different main pages sequentially by pressing the PAGE key repeatedly.
You can also view the main pages directly by pressing the hot keys at the bottom of the
display. The PAGE key is also used to change tabs or toggle between the Tools and Settings
screens of the main menu.
2

12 | Basic operation | GN70/MX610/MX612 Operator and Installation Manual
MENU key
Menus are used to operate the system and to adjust configuration settings.
You display the menu by pressing the MENU key to bring up the “Quick Menu”.
Using the rotary knob, scroll down to Tools and Settings and press the ENT key.
• Pressing the MENU key brings up the quick
menu for the particular screen on the display
• Scroll down to the Tools and Settings then
press the ENT key to display the main menu
• You can scroll through the menu icons by using the rotary knob and then pressing the ENT
key or middle of the knob to select.
• Adjust slide bar values by turning the rotary knob clockwise (CW) or counterclockwise (CCW)
direction.
• Drop-down listings are selected by pressing the ENT key when the highlight is at the
selected item.
•
If you do not want to accept the entry or need to exit the setup screen, press the CLR key to
return to previous menu level or to exit.
Dialog boxes
Select entry fields and keys in a dialog box by using the rotary knob then pressing the
center of the knob or the ENT key. You can only enter information when the selected field is
highlighted.
Virtual numeric or alphanumeric keyboards will automatically be displayed when required for
entering user information in dialogs.
Pressing the ENT key after selecting the required value(s)
will select the entry. Highlight the OK button and press
ENT will save the entry.
A dialog is closed without saving by pressing the CLR
key.

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Basic operation | GN70/MX610/MX612 Operator and Installation Manual
MOB (Man-Over-Board)/Mark key
Marking or saving the present position into waypoint memory is accomplished by pressing
the MOB key momentarily. The marked point can be renamed or edited thereafter and be
made into a regular waypoint if needed.
If an emergency man over board situation should occur, you can position a Man Over Board
mark at the vessel’s current position by pressing the MOB key for 3 seconds. When you
activate the MOB function the following actions are automatically performed:
• A MOB mark is positioned at the vessel’s position.
• The display switches to NAV screen showing the range and bearing going back to the MOB
point.
• The GN70/MX61x creates an active route to the MOB mark.
¼Note: Press the AIS/PLOT key to show the relative location of the MOB point from your
vessel.
Cancel MOB navigation
The GN70/MX61x will continue navigating towards the MOB point until you cancel this
navigation. To cancel MOB, press the MENU key, highlight“Cancel navigation”then press the
ENT key. Press any hot key to exit.
Delete a MOB mark
A MOB mark is deleted by selecting the MOB mark in the WPT list and then pressing the
MENU key and selecting delete. It can also be deleted as described in “Waypoints, Routes &
Tracks”on page 39.

14 | Basic operation | GN70/MX610/MX612 Operator and Installation Manual
Main pages
The four keys below the display are called hot keys because they can bring up the position,
navigation, heading and AIS (plot) pages directly when pressed.
POS page
There are three POS pages available: POS1, POS2*
and POS3*. The page indicator located on the top
left corner pulses every second to indicate the
display is updated every second. Pressing the POS
key will bring up the POS1 indicating the present
position Lat/Long, SOG, COG, Date/Time and the
compass heading. Pressing the POS key again will
show the POS2 page showing the L/L, Altitude and
Depth. Pressing the POS key the third time will
bring up the POS3 page showing the Odometer, Trip
meter, SOG and the trip time (hh:mm:ss).
*) Not for GN70.
NAV page
There are three NAV pages available: NAV1, NAV2*
and NAV3*. The page indicator on the top left corner
pulses every second to indicate the display is updated
every second. Pressing the NAV key will bring up
the NAV1 page showing the WPT# you are headed to,
the range, bearing, SOG, COG and ETA to destination.
It also shows the graphical display of the cross-track
error. Pressing the NAV key again will show the NAV2
page and provide e.g. distance to waypoint. Pressing
the NAV key the third time will show the NAV3 page
showing the COG, SOG, TWA, TWD, TWS and VMG
information.
*) Not for GN70.

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Basic operation | GN70/MX610/MX612 Operator and Installation Manual
HDG page
There are two HDG pages available, namely: HDG1 and HDG2. Pressing the HDG key will
bring up the HDG1 page showing the full compass rose. Pressing the HDG key again will
show the HDG2 page showing the digital heading readout with ROT, pitch, roll and yaw.
This information will be displayed when a gyro, HS80/HS80A or MX575C/MX575D GPS
compass is available in the NMEA 2000 network or when they are connected to the MX61xJB
junction box.
AIS page
The AIS page is not certified for use on SOLAS ships.
Pressing the AIS key will therefore bring up a warning
page. After acknowledging, the plotter page will show
your ship in the middle of the screen, together with
waypoints, routes, and AIS targets if an AIS unit is available
in the NMEA 2000 network.
1 Instrument bar
Navigation data is contained on the bar on top of the
PLOT page. The PLOT is under the AIS key.
2 Plotter orientation
Possible orientation of the plotter is North Up or Course
Up.
3 Ship’s location
Always located in the middle of the plot screen.
1 23

16 | Menu overview | GN70/MX610/MX612 Installation and Installation Manual
Menu overview
Quick Menus
The Quick menus are mode dependent and contain the most common used settings for
the active display screen. Pressing the MENU key one time brings up the quick menu. Each
Quick menu has access to the main Tools and Settings menus.
Quick Menu under POS, NAV and HDG Screens
From the Quick menu for POS, NAV and HDG screens, you can change the data sources used
for positioning, navigation, etc. or you can Goto a waypoint or route. Using Auto Select will
automatically search for the data source that is connected in the NMEA 2000 network. You
can also create waypoints, routes or tracks or bring up the Tools and Settings menu.
Level 1 Level 2 Level 3 Level 4
Data Sources
Goto
Wpt, Rte, Tracks
Tools & Settings
Auto Select
Compass
Navigation
Position
Boat speed
Distance log
Depth
Advanced....
Group
Advanced
Simrad/None
Data Source
Selection
Wpt, Rte, Coordinates
Wpt, Rte, Tracks listings
Main Menu
Quick Menu in AIS (PLOT)
Under the AIS (PLOT) screen the quick menu can be used to Goto a destination wpt, route or
L/L coordinates. Below is the AIS screen quick menu map.
Goto
Display options
AIS
Wpt/Rte/Trk
Tools & Settings
Extension lines
Show range rings
Show grid lines
show waypoints
show routes
Tracks
LEVEL 1 LEVEL 2 LEVEL 3 LEVEL 4
Main Menu
Wpt, Rte, Coordinates
Vessels info
Icon Filters
( Wpt, Rte, Tracks listings)
Status
Message
Hide all
Hide safe
Hide farther than (2Mi)
Hide slower than (2 MPH)
3

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Menu overview | GN70/MX610/MX612 Installation and Installation Manual
Settings dialog and submenus
The system is configured and most system settings defined during installation and
commissioning of the system.
The settings parameters are logically grouped, and each group is presented with an icon in the
Settings page. This page is accessed by pressing the MENU key, highlight the Tools & Settings
then press the knob (or ENT). A settings menu map is shown below:
SETTINGS AIS
ALERTS
GPS
NAVIGATION
NETWORK
SYSTEM
TRACKS
UNITS
MMSI
ICON FILTER
DANGEROUS VESSELS
SETTINGS
SIREN ENABLED
ENABLE RAIM
RAIM ALARM
RAIM PROTECTION RADIUS
LAT OFFSET
LONG OFFSET
METHOD
ARRIVAL RADIUS
XTD LIMIT
ARRIVAL LIMIT
COORDINATE SYSTEM
DATUM
MAGNETIC VAR
SOURCES
DEVICE LIST
DIAGNOSTIC
SIMNET GROUPS
DAMPING
NMEA 2000
LANGUAGE
TEXT SIZE
KEY BEEPS
TIME
RESTORE DEFAULTS
SIMULATOR
ABOUT
DISTANCE
DISTANCE SMALL
SPEED
WIND SPEED
DEPTH
HEADING
LOGGING TYPE
DISTANCE
TIME PERIOD
TRUE/MAGNETIC
AIS settings
Used to enter the MMSI number of the vessel, set the icon filters
to show or hide vessel targets and set limits for dangerous
vessels based on distance or time of closest point of approach
(CPA).
Alerts settings
This screen is used to manage and control the alert
feature. Press the PAGE key to change tabs
-Settings tab is used to turn on/off alerts and set
limits.
-History tab lists all previous alerts.
-Active tab shows alerts that are still active. The alert
is removed from the list when the cause is corrected.

18 | Menu overview | GN70/MX610/MX612 Installation and Installation Manual
GPS settings
Settings for the GPS RAIM (Receiver Autonomous Integrity
Monitoring) feature, alert and radius, L/L Offset, Elevation
Mask Angle, COG/SOG filter time, GNSS mode, DGPS mode,
Mixed mode, WAAS PRN and Antenna reset.
Navigation settings
Controls the navigation calculation method to either the
Great Circle or Rhumb line. You can also specify the limits
for arrival radius, cross track error (XTE) limit, Arrival alert,
Coordinate system, Datum and Mag. Variation.
Network settings
List of data sources, device list connected to the CAN bus
network, diagnostics, SIMNET groups, damping, NMEA 2000,
NMEA 0183 over MXJB and NMEA 0183 over Ethernet.
Systems settings
Controls the text language, size, key beeps, time, restore
defaults, activate the simulator feature, special product
options and information about the software and hardware of
the unit.
Tracks settings
Shows the tracks list dialog and logging type.
Units settings
Controls the units used for distance, depth, speed and
heading.

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Menu overview | GN70/MX610/MX612 Installation and Installation Manual
Tools dialog and submenus
Several tools are available to help you operate the CDU unit. To bring up the TOOLS page, press
the PAGE key to change tab from SETTINGS to TOOLS.
AIS tool
Two tabs are available in this submenu, namely:
Status-All and RX Messages. Press the PAGE key
to change tabs. The Status-All provides a list of
targets received from AIS or GMDSS as well as
their distance and bearing with reference to your
vessel. The RX message tab, provides a list of text
messages received from other AIS enabled vessels
who sent you a directed or broadcast message.
Alerts tool
This screen is used to manage and control the
alert feature. Press the PAGE key to change tabs
-Settings tab is used to turn on/off alerts and set
limits.
-History tab lists all previous alerts. Press MENU to
delete alert history
-Active tab shows alerts that are still active. The
alert is removed from the list when the fault is
corrected.
Satellite tool
Provides the status display of the GPS satellites and
differential correction status. Press the PAGE key
to change tab to DGPS status screen. Press MENU
to toggle Automatic, Database or Manual beacon

20 | Menu overview | GN70/MX610/MX612 Installation and Installation Manual
Waypoints, Routes and Tracks tool
This tool submenu allows you to create
waypoints, routes and start tracks. Pressing the
PAGE Key will change tab to Waypoint, Route
and Tracks page.
Trip Log tool
You can track the distance travelled using the two trip meters
as well as the overall distance travelled in the today page.
To reset, highlight the Reset button and press the ENT key.
Change tab by pressing the PAGE key.
Sun/Moon tool
Calculates the sun and moon setting and rising.
Tide tool
Calculates the tides based on manually entered tide
harmonics taken from the Admiralty Tide Table book.