C-NaviGator I User Guide

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C-NaviGator I User Guide | Manualzz

C-NaviGator User Manual

Version 5.2

User Manual

Version 5.2

Revision Date: August 4, 2011

C & C Technologies, Inc.

C-Nav DGNSS

730 E. Kaliste Saloom Road

Lafayette, LA 70508 U.S.A. www.cnavgnss.com

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Release Notice

This is the August 2011 release of the C-NaviGator User Manual.

Revision History

Date Version Changes Comments

08/04 /2011

5.2 CJC Updates to meet C-NaviGator v6.1.4

01/12/2011

5.1 CJC Updates to meet C-NaviGator v6.1.0

09/05/2010

4.0.2 CJC Updates to meet C-NaviGator v5.0.8

10/06/2009

4.0 CJC Updates to meet C-NaviGator v5.0.1 with C-Nav3050

12/09/2008

3.5 CJC Update GPLv2

9/17/2008

3.4 CJC Updated to include the C-Nav1010 Features

01/23/2008

2..0.4 Updates to meet C-NaviGator v2.0.4 released 01/23/2008

12/22/2006

06/01/2006

12/12/2005

05/22/2005

04/04/2005

02/21/2005

02/13/2005

02/02/2005

2.0

1.1

1.0

0.9

0.8

0.7

0.6

0.5

Updates to meet C-NaviGator v2.00 released 12/22/2006

Updates to meet C-NaviGator v2.00 released 06/01/2006

Updates to meet C-NaviGator v1.10 released 11/10/2005

Updates to meet C-NaviGator v1.02 released 05/22/2005

Reorganize

Draft

Draft

Draft

01/31/2005

Trademarks

0.4 Draft

The C & C Technologies logo is a trademark of C & C Technologies, Inc.

C-Nav and C-NaviGator are trademarks of C & C Technologies, Inc.

Microsoft, MS-DOS, Windows, Windows 95, Windows 98, Windows 2000, and

Windows NT are trademarks of Microsoft Corporation. All other brand names are trademarks of their respective holders.

Disclaimer of Warranty

EXCEPT AS INDICATED IN

“LIMITED WARRANTY” HEREIN, C & C

TECHNOLOGIES, SOFTWARE, FIRMWARE AND DOCUMENTATION ARE

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PROVIDED “AS IS” AND WITHOUT EXPRESSED OR LIMITED WARRANTY

OF ANY KIND BY EITHER C & C TECHNOLOGIES, INC., OR ANYONE WHO

HAS BEEN INVOLVED IN ITS CREATION, PRODUCTION, OR DISTRIBUTION

INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF

MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE

ENTIRE RISK, AS TO THE QUALITY AND PERFORMANCE OF THE C & C

TECHNOLOGIES HARDWARE, SOFTWARE, FIRMWARE AND

DOCUMENTATION, IS WITH YOU. SOME STATES DO NOT ALLOW THE

EXCLUSION OF IMPLIED WARRANTIES, SO THE ABOVE EXCLUSION MAY

NOT APPLY TO YOU.

Limitation of Liability

IN NO EVENT WILL C & C TECHNOLOGIES, INC., OR ANY PERSON

INVOLVED IN THE CREATION, PRODUCTION, OR DISTRIBUTION OF THE C

& C TECHNOLOGIES SOFTWARE, HARDWARE, FIRMWARE AND

DOCUMENTATION BE LIABLE TO YOU ON ACCOUNT OF ANY CLAIM FOR

ANY DAMAGES, INCLUDING ANY LOST PROFITS, LOST SAVINGS, OR

OTHER SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY

DAMAGES, INCLUDING BUT NOT LIMITED TO ANY DAMAGES ASSESSED

AGAINST OR PAID BY YOU TO ANY THIRD PARTY, RISING OUT OF THE

USE, LIABILITY TO USE, QUALITY OR PERFORMANCE OF SUCH C & C

TECHNOLOGIES‟ SOFTWARE, HARDWARE, AND DOCUMENTATION, EVEN

IF C & C TECHNOLOGIES, INC., OR ANY SUCH PERSON OR ENTITY HAS

BEEN ADVISED OF THE POSSIBILITY OF DAMAGES, OR FOR ANY CLAIM

BY ANY OTHER PARTY. SOME STATES DO NOT ALLOW THE LIMITATION

OR EXCLUSION OF LIABILITY FOR INCIDENTAL OR CONSEQUENTIAL

DAMAGES SO, THE ABOVE LIMITATIONS MAY NOT APPLY TO YOU.

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Table of Contents

Table of Contents.................................................................................................. 4

Manual Organization ......................................................................................... 8

Section 1 - Overview ............................................................................................. 9

Introduction........................................................................................................ 9

Features and Functions ..................................................................................... 9

C-Nav Specific Features and Functions .......................................................... 10

Section 2 - Hardware .......................................................................................... 11

C-NaviGator II ................................................................................................. 11

Controls ....................................................................................................... 11

Back Panel................................................................................................... 12

Power Section .......................................................................................... 12

Mouse/Keyboard ...................................................................................... 12

USB Ports ................................................................................................ 12

Input/Output Ports .................................................................................... 12

C-NaviGator .................................................................................................... 13

Controls ....................................................................................................... 13

Back Panel................................................................................................... 14

Power Section .......................................................................................... 14

Mouse/Keyboard ...................................................................................... 14

USB Ports ................................................................................................ 14

Input/Output Ports .................................................................................... 14

Section 3 - Operator Instructions ........................................................................ 15

Power Up......................................................................................................... 15

Screen Layout ................................................................................................. 15

Operation ........................................................................................................ 18

Section 4 - Menus ............................................................................................... 19

File Menu......................................................................................................... 19

Load Defaults ............................................................................................... 19

Load Settings ............................................................................................... 19

Save Settings ............................................................................................... 20

Take Snapshot ............................................................................................. 20

Almanac Export ........................................................................................... 20

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Copy the current Almanac to a USB device ................................................. 20

Almanac Import ............................................................................................ 21

Import an Almanac from a USB device ........................................................ 21

Upload File................................................................................................... 21

Reset Unit .................................................................................................... 21

View ................................................................................................................ 22

Position Info ................................................................................................. 22

Satellite Info ................................................................................................. 22

Error Ellipse ................................................................................................. 23

Error Ellipse Settings ................................................................................... 23

Scatter Plot .................................................................................................. 24

Scatter Plot Settings .................................................................................... 24

Graphs ......................................................................................................... 25

Fixes ............................................................................................................ 25

Alarms ......................................................................................................... 26

Screenshots ................................................................................................. 26

Settings ........................................................................................................... 27

General ........................................................................................................ 27

Select Active GNSS ................................................................................. 27

Set Timezone Offset ................................................................................ 27

Units ......................................................................................................... 27

Display ......................................................................................................... 28

Current Mode ........................................................................................... 28

Auto Mode Settings .................................................................................. 28

GNSS Quality Alerts .................................................................................... 28

Ports ............................................................................................................ 29

Logging ........................................................................................................ 30

Network Virtual Ports ................................................................................... 30

Configure Network Output ........................................................................... 31

System Network Settings ............................................................................. 31

VNC Interface .............................................................................................. 32

Clean Screen ............................................................................................... 32

Help ................................................................................................................. 33

This Page..................................................................................................... 33

File, View, Settings ...................................................................................... 33

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What‟s New? ................................................................................................ 33

About ........................................................................................................... 34

Section 5 - Devices ............................................................................................. 35

C-Nav3050 ...................................................................................................... 36

Receiver Information .................................................................................... 36

Solution Control ........................................................................................... 36

Navigation Mode .......................................................................................... 37

Antenna Identification .................................................................................. 37

RTK Configure ............................................................................................. 38

Corrections Receiver ................................................................................... 38

Auxiliary Port Configuration ......................................................................... 39

Output Control ............................................................................................. 39

Differential Config ........................................................................................ 40

Software Options ......................................................................................... 40

Corrections Authorization............................................................................. 41

Hardware Settings ....................................................................................... 41

Ethernet Configuration ................................................................................. 42

NTRIP Settings ............................................................................................ 42

Bluetooth Settings ........................................................................................ 43

Settings Profile ............................................................................................. 43

Firmware Update ......................................................................................... 44

C-Nav1010 ...................................................................................................... 45

Receiver Information .................................................................................... 45

Solution Control ........................................................................................... 45

Corrections Receiver ................................................................................... 46

Port Configuration ........................................................................................ 46

Output Control ............................................................................................. 47

Software Options ......................................................................................... 47

Corrections Authorization............................................................................. 48

Firmware Update ......................................................................................... 48

C-Nav2050 ...................................................................................................... 49

Receiver Information .................................................................................... 49

Solution Control ........................................................................................... 49

Corrections Receiver ................................................................................... 50

Port Configuration ........................................................................................ 50

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NMEA Output Control .................................................................................. 51

RTCM Output Control .................................................................................. 51

Software Options ......................................................................................... 52

Corrections Authorization............................................................................. 52

Firmware Update ......................................................................................... 53

MultiMediaCard (MMC) Administration ........................................................ 53

MMC Files.................................................................................................... 54

C-Nav2000 ...................................................................................................... 55

Receiver Information .................................................................................... 55

Solution Control ........................................................................................... 55

Output Control ............................................................................................. 56

Corrections Receiver ................................................................................... 56

Corrections Authorization............................................................................. 57

Firmware Update ......................................................................................... 57

NMEA Input ..................................................................................................... 58

Status .......................................................................................................... 58

Output ............................................................................................................. 59

Settings ........................................................................................................ 59

Section 6 - Maintenance ..................................................................................... 60

Troubleshooting............................................................................................... 60

No Position Information ............................................................................... 60

No Serial Input/Output ................................................................................. 60

Updating Software ........................................................................................... 61

Appendix A - Glossary of Terms ......................................................................... 62

Appendix B - NMEA Data Strings ....................................................................... 68

Appendix C - Alarm List ...................................................................................... 69

General Alarms ............................................................................................... 69

C-Nav3050 Alarms .......................................................................................... 69

C-Nav1010 Alarms .......................................................................................... 70

C-Nav2050 Alarms .......................................................................................... 70

C-Nav2000 Alarms .......................................................................................... 71

Output Alarms ................................................................................................. 72

Simulator Alarms ............................................................................................. 73

Index ................................................................................................................... 74

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Manual Organization

This manual describes how to install, configure, and operate the C-NaviGator

GNSS Control & Display unit from C & C Technologies, Inc. Sections are organized in a manner that facilitates quick operator orientation.

An overview of the hardware is in Section 2 - Hardware (Page 11). Instructions

to guide the operator through installation and setup are provided in Section 3 -

Operator Instructions (page 15).

Detailed menu descriptions can be found in Section 4

– Menus (page 19).

Configuration for supported devices is in Section 5 - Devices (page 35).

Section 6 - Maintenance (page 60) concentrates on maintenance and

troubleshooting.

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Section 1 - Overview

Introduction

C-NaviGator is a selfcontained, Control/Display

Unit that provides a number of visual aids to help the user monitor the quality, performance, and accuracy of the position information supplied by the GNSS receiver. Position calculations are performed by the C-NaviGator along with data quality assessments to create visual and graphical data representations that instantly convey critical information to the operator.

Information from external sensors is displayed in a form that enables the user to quickly recognize a decrease in reliability of the position solution. C-

NaviGator‟s processor-based, windows style operating environment is straightforward and easy to use.

Information screens provide the necessary user interface. Data entry and command functions are entered through the use of the touch-screen. Information displays, alarm indicators, parameter settings, data analysis, etc. are displayed on the C-NaviGator color LCD screen. Alarm or alert states are configured by the operator.

Position calculations are performed for data output to other systems as configured by the operator. Through C-NaviGator, the operator has easy access to input and output controls.

Features and Functions

Monitor NMEA compliant GNSS systems

Save/load settings

Logging of GNSS data

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User selectable units for distance, height and speed

User selectable time zones

Day/night display brightness settings

Help documentation

Software updates via USB

Input / Output all NMEA versions (2.1 / 3.0 / 3.1)

Multiple Input/Output ports (4 x RS232)

Monitoring screens include

Position Information

Satellite Information

Error Ellipse

Scatter Plot

Quality Alert Graphs

Event Log “Fixes”

Alarms

Display of current Quality Information with Alerts

Frequency Mode of Solution

2D / 3D Status

Correction Type

Correction Age

Number of Satellites used for Solution

HDOP, VDOP and PDOP

Figure of Merit

C-Nav Specific Features and Functions

Control and monitoring of C-Nav3050 receivers

Control and monitoring of C-Nav1010 receivers

Control and monitoring of C-Nav2050 receivers

Control and monitoring of C-Nav2000 receivers

Interface for the user to enter Activation / Deactivation Codes

Monitor and control the correction signal demodulator.

Update the receiver‟s firmware.

View L1 and L2 signal strengths for each tracked satellite.

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Section 2 - Hardware

C-NaviGator II

Controls

The C-NaviGator is designed to provide the operator with a functional and easy to navigate user interface. At Power-Up, the LCD screen automatically defaults to the “Position Info” screen. The pull-down menus are activated using the Menu button in the upper left corner of the LCD display.

Use the On-Screen-Display (OSD) control buttons to adjust the contrast, brightnees and other display settings.

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Back Panel

All connections to the C-NaviGator are made through the connectors on the back panel.

Power Section

Includes the input PWR plug

Mouse/Keyboard

Keyboard and mouse connections (PS/2) are provided for your optional use.

During typical operations, these are not needed. The C-NaviGator works with many USB keyboards and mice.

USB Ports

Connections for USB devices such as flash sticks and external solid-state drives are provided. A C-Nav thumb drive is supplied with the unit. With most receivers, data can be logged directory to your USB device.

Input/Output Ports

Connections to input and output devices are through these standard PC type

COM ports. There are 4 RS232 ports (1

– 4) available for use.

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C-NaviGator

Controls

The C-NaviGator is designed to provide the operator with a functional and easy to navigate user interface. At Power-Up, the LCD screen automatically defaults to the “”position Info”

Screen. The pull-down menus are activated using the white MENU button to the right of the

LCD display and the

Cursor Position arrows to navigate to the desired screen.

The functions and commands activated by the

Softkeys (F1-F4) are linked to the current screen display.

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Back Panel

All connections to the C-NaviGator are made through the connectors on the back panel.

Power Section

Includes the input

PWR plug, FUSE,

Input/Output

and ON/OFF

(COM 1-5)

switch.

Mouse/Keyboard

Power

Mouse/Keyboard USB Ports

Section

Plugs (optional)

(1-2)

Keyboard and mouse connections (PS/2) are provided for your optional use. During typical operations, these are not needed. The C-NaviGator works with many USB keyboards and mice.

USB Ports

Provide connections for USB device such as flash sticks and external solid-state drives. A C-Nav thumb drive is supplied the unit.

Input/Output Ports

Connections to input and output devices are through these standard PC type

COM ports. There are 4 RS232 ports (1

– 4) available for use. Port 5 is reserved for future development. Port 5 may be configured for RS422/485 at the factory

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Section 3 - Operator Instructions

Power Up

During the power up sequence, the operator has the option to install new software from C & C Technologies. As updates become available, the user will be able to download the software from the C-Nav ftp site and transfer it to a USB memory device. A flash memory stick is supplied with each unit. See Updating

(page 61) for details.

Allow at least one minute for the system to initialize. Program start is automatic and the last settings stored by the user are recalled. The default screen is the

“Position Info” screen.

For a description of the C-NaviGator display items, see View (page 22). If this

screen does not contain the information described, refer to Troubleshooting

(page 60).

Screen Layout

The C-NaviGator screen provides easy access to system information and control functions. System performance and the quality of the position solution are conveyed by means of red, yellow and green indicators in the left screen panel

(GNSS Quality Indicators). The main system “Alarm” appears in red on the right side of the screen along w ith an “Active Port” indicator. Indicator colors change

according to the limits set by the operator for each parameter. See GNSS

Quality Alerts (page 28) for details.

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Along the top edge of the C-NaviGator screen are the pull-down menus and the date/time display. The type of information to be displayed in the center of the screen is selected by the operator using the pull-down menus described in

Section 4

– Menus (page 19).

Pull-Down Menus (top left):

File

– Configuration storage, recall and reset

View

– Monitoring screen selection (Defaults to

“Position Info” at power up)

Settings

– View, enter, or adjust operating parameters

Help

– Display and control screen setting descriptions

Local Information (top right):

Date and time

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GNSS Quality Alert Indicators (left frame):

Frequency

– Mode of operation.

2D/3D Mode

– Position solutions with or without height.

Corrections

– Indicates the current source of correction data.

Diff Age

– Time in seconds since last valid correction.

Sats

– Number of satellites used in position solution.

HDOP

– Horizontal Dilution of Precision

VDOP

– Vertical Dilution of Precision

PDOP

– Position Dilution of Precision

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Operation

1) Apply power to the C-NaviGator by connecting the power supply to the

back of the C-NaviGator unit.

2) In a few seconds, the system menu will appear allowing the option to update the internal program, calibrate the touch-screen, or begin normal operation (default). If no action from the operator is detected, C-

NaviGator will automatically launch the program. This will take several seconds.

3) C-NaviGator automatically recalls the last settings saved and displays the

“Position Info” screen (page 22). System operating modes and status

indicators are seen on the left under GNSS Quality Alerts

(page 28). To the right are the active ports switch, the active port

indicator, and the general “Alarm” Indicators. The Switch Active button provides a means to quickly switch between different input sources for monitoring. The actual port programming and activation are accessed

from the Menu / Settings / Ports screen as described in Ports (page 29).

4) Press Prev Page and Next Page on the C-NaviGator display to scan through the various view screens. Alternatively, press Menu / View to select the specific view screen.

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Section 4 - Menus

Pull down menus (upper left of the screen) allow operator access to C-NaviGator configuration, display options, parameter settings, support documentation, etc.

Menus are selected by pressing Menu on the display and pressing each subsequent menu item.

File Menu

Load Defaults

The user can quickly revert the C-NaviGator to all factory settings as a starting point for a new configuration. When

File / Load Defaults is selected, the user is required to configure the system, starting with assigning

devices to Ports (page 29).

Load Settings

Similar to "Load Defaults"

Menu / File / Load Settings recalls the last configuration saved by the operator using the "Save Settings" command.

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Save Settings

To store C-

NaviGator‟s current configuration, select

Menu / File / Save Settings and press Save. These settings can be recalled with the “Load Settings” command.

Take Snapshot

Store the current C-NaviGator configuration to a USB device

Almanac Export

Copy the current Almanac to a USB device

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Almanac Import

Import an Almanac from a

USB device

Upload File

This opens the file upload screen, allowing the user to quickly upload a file to a device.

WARNING

Uploading an inappropriate file to the device may render the device inoperable.

Use care to only upload files designed for the device.

Reset Unit

Reset Unit causes C-

NaviGator to restart the internal program.

The operator is asked to confirm the Reset Unit command.

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View

Pressing the Prev Page and Next Page buttons from any of these screens will

„walk‟ through the available View screens. Pressing Switch Active will change between available position devices to display.

Position Info

This is the default screen for

C-NaviGator.

“Position Info” displays horizontal position (in

Latitude/Longitude), Height

Above Ellipsoid (HAE), Speed

Over Ground (SOG), and

Course Over Ground (COG).

The height and speed units can be configured on the

General settings screen (page

27).

Satellite Info

This screen provides the operator with information about the constellation configuration and the signal strengths received from each visible satellite. Relative locations of the GNSS satellites to the GNSS receiver are plotted based on azimuth and elevation information provided by the GNSS receiver. The plot includes corrections satellite information. Additionally, the receiver‟s current elevation mask is annotated on the plot.

Each visible satellite is represented in the plot by a circle with the satellite ID number inside. All satellites used to compute the PVT solution are identified as

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C-NaviGator User Manual green circles. Circles turn red if data from the satellite becomes too noisy or obstructed.

Circles with a blue border represent GNSS satellites and those with an orange border represent GLONASS satellites.

The graphic center point reference represents a point directly overhead and the grid lines from the center of the graph inversely indicate satellite elevation. There is a circle every 15 degrees of elevation and azimuth lines at every 45 degrees.

Error Ellipse

The error ellipse graphically represents the sum of the horizontal error uncertainty in the system.

Graphics on the “Error Ellipse” screen show the error estimate of the PVT solution accuracy (in meters) based on residual analysis.

The range, the distance from the center of the graph to the outer ring, is user configurable using Settings.

Error Ellipse Settings

Allows the user to set the range of the graph or set it to auto range. When auto range is selected, the range will grow to accommodate the size of the error ellipse.

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Scatter Plot

This screen displays a history of the positions received from the GNSS receiver. The reference Latitude and

Longitude shown indicates the center position of the graph.

New positions are computed and presented on the scatter plot with error displacements shown referenced to the reference position. The reference position may be set to a “Fixed” position or set to

“Follow” the latest GNSS fix.

The range is the distance from the center of the graph to the outer ring.

The reference position and range settings may be changed by pressing the

Settings button.

Scatter Plot Settings

Using the Center drop down you can set position for the center of the graph. Select

“Track Current” to track the current position. Choose

“Fixed (Manual), to enter the latitude and longitude.

Choose “Fixed (Here)”, to use the current position as the graph center.

Enter the range for the graph in the Range field. The display can also be set to automatically adjust the range of the graph if Auto-Range is set to yes.

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Graphs

Quality information for the previous 60 seconds is displayed in graphs. The colors change based on the quality alert settings.

Fixes

Position fixes are logged into the C-NaviGator memory when the Take Fix button is pressed. The Edit button allows the user to name/describe the fix.

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Alarms

Several alarm conditions are logged and displayed on this screen. The Ack button can be used to turn off the alarm indicator in the lower right corner of the display until a new alarm is raised.

Certain more serious alarms will continuously cause the alarm indicator to light up.

See Appendix C - Alarm List

(page 69) for a detailed list of

available alarms.

Screenshots

From this page, the operator can preview existing screenshots. Images can be copied to USB devices.

Screenshots in the list can be deleted. To preview a screenshot, select it in the list and press Preview. To copy one to a USB device, select the screenshot in the list and choose a USB device, then press Save to USB.

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Settings

General

Three major system settings are accessed through this screen. These include:

Active GNSS

Timezone

Units

Select Active GNSS

The active GNSS is used to populate the View screens and GNSS Quality Alerts.

The active GNSS device can also be selected with Switch Active button while viewing any of the View screens.

Set Timezone Offset

The offset from UTC time is set here by adjusting the hour and minute values.

Units

Distance and speed units used for the C-NaviGator displays are selected in this section of the screen.

NOTE:

Changing the Active GNSS port settings does not alter the unit‟s data output.

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Display

Brightness of the C-NaviGator

LCD backlight and screen colors is controlled through settings on this screen. It can be adjusted for optimum viewing depending on the time of day and physical location of the unit. Night mode settings are necessary for installations on the bridge of a vessel where bright lights interfere with the helmsman‟s view.

Current Mode

This option selects the „Day‟ or „Night‟ color palette and backlight levels. The

„Night‟ palette is much darker then the „Day‟ palette.

Auto Mode Settings

Programs the display to automatically switch between „Day‟ and „Night‟ modes.

Day and night start times can be configured in 15 minute increments.

GNSS Quality Alerts

The pane on the left side of the screen display various

GNSS quality figures that are color coded based on userconfigurable limits. Red indicates that the data or status of the parameter is out of the acceptable range selected by the user.

Similarly, yellow indicates that the value being displayed is in the range that is borderline or requires attention. A green indicator signifies that the value or status of the parameter is within the acceptable limits.

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The Menu / Settings / GNSS Quality Alerts page allows you to configure when the quality indicators change colors. “Single Frequency” and “Auto 2D” positioning may or may not indicate a problem, depending on the situation. So, you can select any of the colors for these states. For the rest of the alerts, you have 2 columns of settings. In the “Warn (Yellow) if not” column, you select at what point the indicator turns from green to yellow. In t he “Alert (Red) if not” column, you select at what point the indicator turns from yellow to red.

Ports

This screen allows the operator to assign input/output devices to the desired ports. Each port is activated by selecting a device in the “Type” column.

Also adjustable are the serial data transfer settings, including Baud Rate (Speed), number of Data Bits, Parity and the number of Stop Bits.

Always press OK after all changes are made.

NOTE:

For C-Nav2000 and C-Nav2050, factory default communication settings are

19200 8/None/1

For C-Nav1010 and C-Nav3050, factory default communication settings are

57600 8/None/1

All C-NaviGator active ports are listed below Menu / Settings / Port. In the example above, Port 1 is set to “C-Nav 2050”. Additional device status, settings, and control information are available for each port when selected.

See Appendix B - NMEA Data Strings (page 68) for a table of NMEA strings and

the data extracted from each.

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Logging

This screen allows the operator to assign configure logging of the data from an input device to a USB mass storage device. Each port can be configured to log input data. Select the port from the list, and press the settings button. On the logging settings dialog select the frequency to create new files, and the USB device to place the files. Once configured you can use the “Start” and “Stop” buttons to control data logging.

Network Virtual Ports

This screen shows the network virtual port summary and allows the operator to configure network output messages. Press the “New” button to create a new output.

Use the “Settings” to show details of an existing network output. To copy an existing configuration, press the

“Copy” button. Pressing

“Delete” will remove a network output. See the Configure

Network Output

and

Message Configure screens for more information.

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Configure Network Output

This screen allows the operator to configure the settings for a network connection. Specify the name, protocol, source and destination ports, and the destination host, then press

“Apply”. A device will be created for each virtual network port. The device can be configured from the

Settings/{DeviceName} menu item. See the sections on hardware devices for more information on configuration for the selected device types.

System Network Settings

This screen allows the operator to networking configuration for the unit.

Choose the configuration type

DHCP, Static, or Disabled.

Provide settings from your network administrator, and press the Apply button.

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VNC Interface

This screen allows the operator to configure the VNC server. Once configured,

VNC clients can connect and control the C-NaviGator.

System networking must be configured in order for VNC to function.

Clean Screen

Choose this option to physically clean the screen of the unit. Choosing this option, the display will ignore input from the touch screen for 10 seconds.

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Help

This Page

As an operator aid, Menu / Help / This Page contains information about the screen currently displayed. It provides a quick reference should there be a question that requires a quick answer.

File, View, Settings

Under Menu / Help, the operator can also find the latest information relating to other menu items. The information here is similar to that presented in this manual.

What‟s New?

As each new version is released, Menu / Help /

What's New? describes the modifications, additions, and corrections. These may include software enhancements, bug fixes, new feature, etc. The user should always review these changes after installing new software.

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About

Support contact information from C & C Technologies can be found by selecting Menu / Help / About menu.

There you will find the current version number, contact information, etc. to assist the operator should problems arise.

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Section 5 - Devices

This section describes the available device drivers and their use.

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C-Nav3050

Receiver Information

General information about the

C-Nav3050 GNSS receiver

(such as firmware / hardware versions, serial numbers, etc.) is displayed on this screen.

Message indicators

(green/white circles) indicate when data messages are received.

The Query button can be used to request updated information from the receiver.

Solution Control

Control settings relevant to computing the position are displayed on this screen. The user can configure the use of corrections. See Appendix A

-

“SBAS” for a description of

“Correction Signals”.

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Navigation Mode

This screen allows the user to configure the navigation modes for the C-Nav3050.

The vertical navigation mode, which signals to use for measurements and the dynamic mode of the receiver can be set here.

Antenna Identification

Use this page to adjust the phase center height, slant range, and radius of your antenna.

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RTK Configure

Use this page to adjust your

RTK settings, and MB-RTK settings.

Corrections Receiver

This screen contains status indicators relative to GNSS corrections received. Also, the user can manually set the

C-Nav corrections frequency here.

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Auxiliary Port Configuration

COM1 and COM2 on the C-

Nav3050 receiver can be configured here. Serial data transfer parameters (Baud

Rate and Parity) should be set to match that of the C-

NaviGator port. Settings for the 1PPS output can also be modified.

Output Control

Output data strings from the

C-Nav3050 can be chosen by the settings in this screen.

Some messages can be output on change, thus output at the navigation rate. The

Navigation Rate can be set on the "Solution Control" page.

Other strings can be set to output every „fixed‟ number of seconds. Input/output protocols for the C-Nav

Auxiliary Port and the PPS port can also be accessed,

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Differential Config

The RTCM (Radio Technical

Commission for Maritime

Services) standard SC-104 correction type and rates for the C-Nav3050 implemented here. are

Software Options

The options available to the user are encoded into and activated by the Options

Code. This determines which settings and features are enabled in the system.

Various system operational status indicators are shown including status of the RTK remote units (if applicable).

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Corrections Authorization

License information is displayed and authorization code entered here.

Hardware Settings

This page allows the user to configure the USB mode, control logging to the internal memory and USB devices when in host mode.

Restarting the receiver can also be done from this page.

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Ethernet Configuration

Use this page to configure the

Ethernet settings for the receiver. Virtual Ports for the

C-Nav3050 are configured on this page. also

NTRIP Settings

This page allows users to configure the settings for

NTRIP input to the receiver.

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Bluetooth Settings

This page allows you to configure the Bluetooth settings for the C-Nav3050.

Settings Profile

Settings can be saved in the

C-Nav3050. Use this dialog to save and activate settings profiles within the receiver.

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Firmware Update

Use this page to update the firmware of your C-Nav3050.

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C-Nav1010

Receiver Information

General information about the

C-Nav1010 GNSS receiver

(such as firmware / hardware versions, serial numbers, etc.) is displayed on this screen.

Message indicators

(green/white circles) indicate when data messages are received.

The Query button can be used to request updated information from the receiver.

Solution Control

Various status indicators and control settings relevant to the corrections applied in the position solution are displayed on this screen. This information verifies system performance with respect to limits set by the operator.

See Appendix A -

“SBAS” for a description of “Correction

Signals”.

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Corrections Receiver

This screen contains status indicators relative to GNSS corrections received. Also, the user can manually set the

C-Nav corrections frequency here.

Port Configuration

COM1 and COM2 on the C-

Nav1010 receiver can be configured here. Serial data transfer parameters (Baud

Rate and Parity) should be set to match that of the C-

NaviGator port. Input/output protocols for the C-Nav

Auxiliary Port and the PPS port can also be accessed,

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Output Control

Output data strings from the

C-Nav1010 can be chosen by the settings in this screen.

Some messages can be output on change, thus output at the navigation rate. The

Navigation Rate can be set on the "Solutions Control" page.

Other strings can be set to output every „fixed‟ number of seconds.

Software Options

The options available to the user are encoded into and activated by the Options

Code. This determines which settings and features are enabled in the system.

Various system operational status indicators are shown including status of the RTK remote units (if applicable).

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Corrections Authorization

License information is displayed and authorization code entered here.

Firmware Update

The C-

Nav1010 receiver‟s firmware can be installed from this screen. Ensure that the

USB memory device is installed. Press the Scan

USB button to search the

USB memory stick for available firmware. Press

Update Firmware to upload the new code into C-Nav1010 memory. Information regarding the new version is displayed in the information window.

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C-Nav2050

Receiver Information

General information about the

C-Nav2050 GPS receiver

(such as firmware / hardware versions, serial numbers, etc.) is displayed on this screen.

Message indicators

(green/white circles) indicate when data messages are received.

The Query button can be used to request updated information from the receiver.

Solution Control

Various status indicators and control settings relevant to the corrections applied in the position solution are displayed on this screen. This information verifies system performance with respect to limits set by the operator.

See Appendix A -

“SBAS” for a description of “Correction

Signals”.

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Corrections Receiver

This screen contains status indicators relative to GNSS corrections received. Also, the user can manually set the

C-Nav corrections frequency here.

Port Configuration

COM 1 and COM2 on the C-

Nav2050 receiver can be configured here. Serial data transfer parameters (Baud

Rate and Parity) should be set to match that of the C-

NaviGator port. Input/output protocols for the C-Nav

Auxiliary Port and the 1PPS port can also be accessed,

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NMEA Output Control

Output data strings from the

C-Nav2050 can be chosen by the settings in this screen.

Some messages can be output on change, and will be delivered when new data is available; typically this is at the navigation rate of the receiver. The Navigation Rate can be set on the "Solutions

Control" page. Other strings can be set to output every

„fixed‟ number of seconds.

RTCM Output Control

The RTCM (Radio Technical

Commission for Maritime

Services) standard SC-104 correction type and rates for the C-Nav2050 are implemented here.

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Software Options

The options available to the user are encoded into and activated by the Options

Code. This determines which settings and features are enabled in the system.

Various system operational status indicators are shown including status of the RTK remote units (if applicable).

Corrections Authorization

License information is displayed and authorization code entered here.

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Firmware Update

The C-

Nav2050 receiver‟s firmware can be installed from this screen. Ensure that the

USB memory device is installed. Press the Scan

USB button to search the

USB memory stick for available firmware. Press

Update Firmware to upload the new code into C-Nav2050 memory. Information regarding the new version is displayed in the information window.

MultiMediaCard (MMC)

Administration

Control of the internal MMC

Logging is handled here.

Data can be logged to the internal MMC of the C-

Nav2050.

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MMC Files

Control of files on the MMC

Internal memory is handled here. Including transferring a file to a USB device.

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C-Nav2000

Receiver Information

Specific information regarding the GNSS receiver (including firmware / hardware version, etc) is displayed on this screen. Message indicators

(green/white circles) indicate the Message status. Green circles indicate messages are being received by C-

NaviGator.

The Query button can be used to request updated information from the receiver.

Solution Control

General operating parameters and position solution control are for the C-Nav2000 are accessed here. These settings define the acceptable operating limits, correction signal settings, vertical/3D control, correction devices and signals, etc.

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Output Control

NMEA and RTCM output are controlled from this screen.

Corrections Receiver

This screen contains mainly status indicators relative to the

GNSS corrections received by the system. Also, the user can manually set the C-Nav corrections frequency here.

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Corrections Authorization

The operator can access information and enter the authorization code into the C-

Nav2000 receiver. As part of standard procedure, operators should periodically check the expiration date to avoid gaps in service.

Firmware Update

The C-

Nav2000 receiver‟s firmware can be installed from this screen. Ensure that the

USB memory device is installed. Press the Scan USB button to search the USB memory stick for available firmware. Press

Update

Firmware to upload the new code memory. into C-Nav2000

Information regarding the new version is displayed in the information window.

Updates of a C-Nav2000 typically require 25-30 minutes. This process should not be interrupted as it may leave the receiver in an inoperable state if not completed successfully.

Warning

Do not unplug the USB device while the memory is uploading

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NMEA Input

Status

Sentence string status indicators identify which information the GNSS receiver supplies.

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Output

Settings

All output control and data transfer functions are accessible from this screen.

These include Port information, NMEA string selections, output filter settings, etc.

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Section 6 - Maintenance

Troubleshooting

No Position Information

"Position Info" screen is blank.

1) Check cable interconnections.

2) Go to

Menu / Settings / Ports and verify that the settings correspond to the correct input connection.

3) Go to

Menu / Settings / General to verify that the correct “COM Port” is selected as the Active GNSS Port.

NOTE

Active Port # is displayed on the right side on View screens.

No Serial Input/Output

The most common cause of data transfer problems is an incorrect setting in the port configuration.

1) Check that the serial port settings are correct and that they match the input/output device. Select Menu / Settings / Ports / xxxx.

2) The C-Nav20xx data transfer settings should be 19.2K / 8 / None / 1.

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Updating Software

New software versions for the C-NaviGator will be posted on the C-Nav web site at www.cnavGNSS.com

. The software can be downloaded and saved to the supplied USB Thumb Drive for use with C-NaviGator.

To verify that the latest software is installed, check the About page from the Help

menu.

Follow these procedures:

1) Plug the USB memory device that contains the new software into one of the USB ports on the C-NaviGator rear panel.

2) Reset the C-NaviGator unit.

3) When the system menu screen appears, press the Update button.

4) Follow the on screen instructions.

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Appendix A - Glossary of Terms

1PPS (1 Pulse Per Second) A precision electronic pulse output (at

TTL levels) from the GNSS receiver that marks exact second intervals (1 s). It is used for precise timing and to synchronize sensors and acquisition computers.

Azimuth The horizontal angle of the observer's bearing in surveying, measured clockwise from a referent direction, as from the north, or from a referent celestial body, usually Polaris.

Bad Packets The percentage of bad C-Nav correction packets received since the unit was turned on.

Bit Error Rate Number of received bits of a data stream over a communication channel that have been altered due to noise, interference, distortion or bit synchronization errors. The Bit

Error Rate is considered good if less than 20. The maximum reported value is 500.

C-Monitor A utility program used to monitor the quality of the position information received from a GNSS receiver. No position calculations are done in C-Monitor. C-Monitor simply creates a visual representation of the data received from a GNSS unit.

C-Nav The C-Nav GNSS receiver combines a dual-frequency, geodetic grade, GNSS receiver with an integrated LBAND communication RF detector and decoder -- all linked by an internal microprocessor. The entire assembly is combined into a single integrated package that is durable, lightweight and water/weatherproof.

C-Nav1010 The C-Nav GNSS receiver combines a dual-frequency, geodetic grade, GNSS receiver with an integrated LBAND communication RF detector and decoder -- all linked by an internal microprocessor. The entire assembly is combined into a single integrated package that is durable, lightweight and water/weatherproof.

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C-Nav2000 The C-Nav2000 GNSS navigational receiver is a 10-channel dual frequency unit with two additional channels for receiving Satellite Based

Augmentation System (SBAS) signals and an L-Band demodulator for reception of the C-Nav correction service. For more information, go to www.cnavGNSS.com

.

C-Nav2050 The C-Nav2050 survey GNSS receiver has expanded capabilities including RTK, PPS output, etc. As with the model

2000, the 2050 is a 10-channel, dual frequency, precision GNSS receiver, with two additional channels for receiving SBAS signals and an L-Band demodulator for reception of C-Nav subscription signals. Maximum data output rate is 50Hz and

Position Velocity Time (PVT) data can output at 25Hz. Two

115kbps serial ports are available. For more information, go to www.cnavGNSS.com

.

C-Nav3050 The C-Nav3050 survey GNSS receiver has expanded capabilities including RTK, PPS output, etc. As with other C-

Nav receivers, the C-Nav3050 includes dual frequency, precision GNSS receiver, with two additional channels for receiving SBAS signals and an L-Band demodulator for reception of C-Nav subscription signals. For more information, go to www.cnavGNSS.com

.

Correction Signal The Correction Signal-to-Noise ratio. This graph is only available with the C-Nav system.

Correction Type The type or source of differential corrections being applied to the GNSS receiver.

Course True The course computed by the GNSS receiver.

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Differential Age The time in seconds since the GNSS unit received the last differential correction update.

Differential GPS A technique for improving GPS solution accuracy by reducing the error based on signals received at a known location. Single point code positioning with pseudorange corrections are applied from simultaneous observations at the known position. One to ten meter accuracy is typical.

DOP Dilution of Precision is a scale factor representing the effect of satellite constellation geometry positioning accuracy.

Standard terms for GNSS applications are:

GDOP Geometric Dilution of Precision -- three coordinates plus clock offset

PDOP Position Dilution of Precision) -- three coordinates (See PDOP definition below)

HDOP coordinates

Horizontal Dilution of Precision -- two

VDOP

TDOP

Vertical Dilution of Precision -- height only

Time Dilution of Precision) -- clock offset only

Elevation

Error Ellipse

Height of the GNSS antenna above the reference ellipsoid.

A statistical measure of the positional error at a given point computed from the propagation of all errors affecting the position solution and expressed by its semi-major and semiminor axis (vectors of greatest and least magnitude) and the covariance (rotation angle in the reference coordinate system). Two-dimensional errors are typically propagated at one-standard deviation (39.4% probability that the position lies on or within the ellipse) or 2.1447 times the standard deviation (95% confidence) level.

FOM Figure of Merit

GNSS Receiver A GNSS receiver consists of a number of basic components: an antenna with optional preamplifier, a radio-frequency and

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C-NaviGator User Manual intermediate- frequency (RF/IF) "front end" section, a signal tracker/correlator section, and a micro- processor to control the receiver, process the signals, and compute the receiver's coordinates. The receiver will also include a power supply and memory devices to store instructions and data.

HAE Height Above Ellipsoid

– RTK vertical reference plane.

L1-L2 Sig. Strength GNSS satellites transmit spread spectrum signals in two frequency bands, L1 and L2 (1575.42 and 1223.6 MHz, respectively). The satellite signals carry both time information and a data strings, referred to as the GNSS navigation message. This message is transmitted at a rate of 50 bits per second. Using the data from 4 or more satellites, a GNSS receiver can accurately determine local latitude, longitude and height. Civilian applications are confined to the L1 band for computing position. The C & C

Technologies and military receivers employ both L1 and L2 bands, offering a significant improvement in accuracy.

NMEA 0183 This guideline for Interfacing marine electronics devices is a voluntary industry standard, first released in March of 1983.

NMEA 0183 defines electrical signal requirements, data transmission protocol, timing, and specific sentence formats for up to 38.4K-baud serial data bus.

PDOP Position Dilution of Precision is the most common mathematical expression of the quality of solutions. It is based on the geometry of the satellites with the best case being a value of 1. Higher numbers indicate worse quality.

The best DOP would occur with one satellite directly overhead and three others evenly spaced about the horizon.

PDOP has a multiplicative effect on range error. For example, a range error of 32 meters with a PDOP of 1 would give a user an assumed best accuracy of 32 meters. A

PDOP of 2 would result in an assumed accuracy of 64 meters. C-NaviGator can be programmed to stop providing position solutions above a specific PDOP level (6 is common).

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Position Includes Current Latitude, Longitude, Geoidal Height,

HDOP, PDOP, Type of corrections, Current Station ID,

Differential Age, Velocity, UTC Time and UTC Date if available.

PPS Precise Positioning Service

– a positioning service that includes velocity and timing information. PPS is continuously available, worldwide to authorized users. PPS information is usually (but not always) encrypted to prevent use by unauthorized users.

Pseudorange A measure of the apparent propagation time from the satellite to the receiver antenna, expressed as a distance.

The apparent propagation time is determined from the time shift required to align a replica of the GNSS code generated in the receiver with the received GNSS code. The time shift is the difference between the time of signal reception

(measured in the receiver time frame) and the time of emission (measured in the satellite time frame).

Pseudorange is obtained by multiplying the apparent signalpropagation time by the speed of light. Pseudorange differs from the actual range by the amount that the satellite and receiver clocks are offset, by propagation delays, and other errors including those introduced by selective availability.

PVT

RTCM

Position Velocity Time

Radio Technical Commission for Maritime Services)

– A

Commission set up to define a differential data link to relay

GNSS correction messages from a monitor station to a field user. The RTCM SC-104 recommendation is the defacto standard for differential GNSS correction transmission. It defines the correction message format and 16 different correction message types.

RTG Real Time Gypsy -- Developed by NASA's Jet Propulsion

Laboratory (JPL) to provide centimeter-level accuracy for space applications. A single RTG subscription service, combined with C-Nav hardware, can provide you with worldwide positioning capability on the order of 0.1 meter.

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RTK Real Time Kinematic (or Kinematic Surveying) involves a roving receiver that does not need to stop to collect precision information. Meter/centimeter level accuracy is available using modern dual-frequency carrier-phase measurement techniques.

SBAS Satellite Based Augmentation System - Includes, but is not limited to: WAAS (Wide Area Augmentation System) and

EGNOS (European Geo-stationary Navigation Overlay

System). Ranging signals generated on the ground and provided via C-band (or K-band) downlink are provided to the end user. These signals contain integrity data on satellite system.

Sky Plot This option displays a plot of the current GNSS satellite locations with reference to the GNSS receiver. C-NaviGator refers to this presentation as “Position Information”.

Scatter Plot This option displays a plot of satellite positions relative to the receiver and provides an indication of relative signal strength in the two frequency bands.

Visible Sats The number of Satellites used by the receiver in the position solution.

WAAS Wide Area Augmentation Service -- A system of satellites and ground stations that provide GNSS signal corrections over a wide area. An accuracy improvement on the order of three meters, with 95 percent confidence, is realized.

WCT Wide Area Correction Transform

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Appendix B - NMEA Data Strings

C-NaviGator is capable of reading and writing NMEA 0183 compliant messages as they relate to positioning. Version 2.1, 3.0 and 3.01 are supported. The following table lists the available strings:

NMEA String Description

ALM Almanac data

GBS

GRS

GNSS Satellite Fault Detection

GPS Range Residuals

MLA

GGA

GLONASS Almanac Data

Global Positioning System Fix Data

Geographic Position

– Latitude / Longitude

GLL

GNS

GSA

GST

GSV

RMC

VTG

ZDA

GNSS Fix Data

GNSS DOP and Active Satellites

GNSS Pseudorange Error Statistics.

GNSS Satellites in View

Recommended Minimum Specific GNSS Data

Course Over Ground and Ground Speed

Time & Date

In addition to standard NMEA messages, C-NaviGator recognizes the following

C-Nav proprietary sentences:

NMEA String Description

DPGGA

RTCM

SATS

TRINAV

Filtered GGA output for DP vessels.

C-NaviGator can output RTCM if a C-Nav2000 is connected.

Sky Plot Information

Statistical information.

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Appendix C - Alarm List

General Alarms

Invalid Navigation:

Valid navigation data is unavailable on the Device port. The communication link is operational.

No Communications:

C-NaviGator can no longer communicate with the attached device.

Output Error: Output data and/or commands from this serial port has failed.

C-Nav3050 Alarms

Correction Signal Invalid Messages:

Information received in the correction signal is missing or incorrect.

Correction Signal Lost Lock:

Input of the correction signal has failed.

Too few measurements:

The number of satellites available is too low to compute a position.

PDOP too high:

The positional dilution of precision exceeds the userconfigured maximum.

Export height/velocity limits exceeded:

Input of the correction signal has failed.

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Requested mode unavailable:

The settings requested are not available with the receiver‟s configured options.

No Valid C-Nav Corrections License:

The C-Nav Subscription Service has expired. Please contact C-Nav Support:

E-mail: [email protected]

-or-

Phone: +1 (337) 210-0000

C-Nav1010 Alarms

Correction Signal Invalid Messages:

Information received in the correction signal is missing or incorrect.

Correction Signal Lost Lock:

Input of the correction signal has failed.

Correction Signal Poor Reception:

The selected correction signal source is weak.

No Valid C-Nav Corrections License:

The C-Nav Subscription Service has expired. Please contact C-Nav Support:

E-mail: [email protected]

-or-

Phone: +1 (337) 210-0000

Unstable GPS Clock:

The GPS receiver‟s internal clock (time reference) has become unstable. The r eceiver‟s ability to measure pseudo ranges is compromised.

C-Nav2050 Alarms

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Correction Signal Invalid Messages:

Information received in the correction signal is missing or incorrect.

Correction Signal Lost Lock:

Input of the correction signal has failed.

Correction Signal Poor Reception:

The selected correction signal source is weak.

Low voltage x.x V:

The GNSS receiver input voltage is too low.

No Valid C-Nav Corrections License:

The C-Nav Correction Service has expired. Please contact

C-Nav Support:

E-mail: [email protected]

-or-

Phone: +1 (337) 210-0000

Unstable GPS Clock:

The GPS receiver‟s internal clock (time reference) has become unstable. The receiver‟s ability to measure pseudo ranges is compromised.

C-Nav2000 Alarms

Correction Signal Invalid Messages:

Information received in the correction signal is missing or incorrect.

Correction Signal Lost Lock:

Input of the correction signal has failed.

Correction Signal Poor Reception:

The selected correction signal source is weak.

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Failed Geofence:

The C-Nav receiver is outside the Land Based correction signal area. To extend, Contact C-Nav Support for a marine license:

E-mail: [email protected]

-or-

Phone: +1 (337) 210-0000

Firmware Update Mode:

A firmware update is in progress or has failed.

Low Voltage x.x V:

The GNSS receiver input voltage is too low.

No Valid C-Nav Corrections License:

The C-Nav Subscription Service has expired. Please contact C-Nav Support:

E-mail: [email protected]

-or-

Phone: +1 (337) 210-0000

Unstable GNSS Clock:

The GNSS receiver‟s internal clock (time reference) has become unstable. The receiver‟s ability to measure pseudo ranges is compromised.

Output Alarms

Position Filtered - Max Error:

The position solution has exceeded the error allowance.

Position Filtered - Max HDOP:

The Horizontal Dilution of Precision computation has exceeded the alarm setting (See GNSS Quality Alerts).

Position Filtered - Min 2D/3D Time:

The Min 2D/3D time computation has exceeded the alarm setting (See GNSS Quality Alerts).

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Position Filtered - Min Satellites:

The number of usable satellites has dropped below the minimum number set on the GNSS Quality Alerts screen.

Position Filtered - No Data:

Data through the C-NaviGator active port is not present or is invalid.

Simulator Alarms

Simulator mode:

C-NaviGator is in Simulator mode (operator selected as the active port on the ”Ports” screen). This alarm cannot be acknowledged.

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Index

1

1PPS ...................................................................................................................................................... 62

A

Azimuth ................................................................................................................................................. 62

B

Bad Packets ............................................................................................................................................ 62

Bit Error Rate ......................................................................................................................................... 62

C

C-Monitor .............................................................................................................................................. 62

C-Nav .................................................................................................................................................... 62

C-Nav1010 Alarms ................................................................................................................................. 70

C-Nav2000 ........................................................................................................................................ 55, 62

C-Nav2000 Alarms ............................................................................................................................ 69, 71

C-Nav2050 ........................................................................................................................................ 49, 63

C-Nav2050 Alarms ................................................................................................................................. 70

C-Nav3050 ............................................................................................................................................. 36

Correction Signal .................................................................................................................................... 63

Correction Type...................................................................................................................................... 63

Course True ............................................................................................................................................ 63

D

Differential Age...................................................................................................................................... 63

Differential GPS ..................................................................................................................................... 63

DOP ....................................................................................................................................................... 64

E

Elevation ................................................................................................................................................ 64

Error Ellipse ........................................................................................................................................... 64

F

F1-EDIT................................................................................................................................................. 25

F4 – SWITCH ACTIVE ......................................................................................................................... 22

FIX ........................................................................................................................................................ 25

FOM ...................................................................................................................................................... 64

Front Panel Controls .......................................................................................................................... 11, 13

G

GDOP .................................................................................................................................................... 64

General Alarms ...................................................................................................................................... 69

GPS Receiver ......................................................................................................................................... 64

H

HAE ....................................................................................................................................................... 64

HDOP .................................................................................................................................................... 64

L

L1-L2 Sig. Strength ................................................................................................................................ 64

M

MENU ......................................................................................................................................... 13, 19, 60

N

NMEA 0183 ........................................................................................................................................... 65

NMEA Input .......................................................................................................................................... 58

O

Output .................................................................................................................................................... 59

Output Alarms ........................................................................................................................................ 72

P

PDOP ................................................................................................................................................ 64, 65

Position .................................................................................................................................................. 65

PPS ........................................................................................................................................................ 65

Pseudorange ........................................................................................................................................... 66

PVT ....................................................................................................................................................... 66

R

RTCM .................................................................................................................................................... 66

RTG ....................................................................................................................................................... 66

RTK ....................................................................................................................................................... 66

S

SBAS ..................................................................................................................................................... 66

Scatter Plot ............................................................................................................................................. 67

Simulator Alarms ................................................................................................................................... 73

Sky Plot.................................................................................................................................................. 67

T

TDOP..................................................................................................................................................... 64

This Page............................................................................................................................................... 33

Troubleshooting ................................................................................................................................ 15, 60

U

Updating Sortware .................................................................................................................................. 61

V

VDOP .................................................................................................................................................... 64

Visible Sats ............................................................................................................................................ 67

W

WAAS ................................................................................................................................................... 67

WCT ...................................................................................................................................................... 67

What’s New ........................................................................................................................................... 33

GNU GENERAL PUBLIC LICENSE

Version 2, June 1991

Copyright (C) 1989, 1991 Free Software Foundation, Inc.,

51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.

Preamble

The licenses for most software are designed to take away your freedom to share and change it. By contrast, the GNU

General Public License is intended to guarantee your freedom to share and change free software--to make sure the software is free for all its users. This General Public

License applies to most of the Free Software Foundation's software and to any other program whose authors commit to using it. (Some other Free Software Foundation software is covered by the GNU Lesser General Public License instead.)

You can apply it to your programs, too.

When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for this service if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs; and that you know you can do these things.

To protect your rights, we need to make restrictions that forbid anyone to deny you these rights or to ask you to surrender the rights. These restrictions translate to certain responsibilities for you if you distribute copies of the software, or if you modify it.

For example, if you distribute copies of such a program, whether gratis or for a fee, you must give the recipients all the rights that you have. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights.

We protect your rights with two steps: (1) copyright the software, and (2) offer you this license which gives you legal permission to copy, distribute and/or modify the software.

Also, for each author's protection and ours, we want to make certain that everyone understands that there is no warranty for this free software. If the software is modified by someone else and passed on, we want its recipients to know that what they have is not the original, so that any problems introduced by others will not reflect on the original authors' reputations.

Finally, any free program is threatened constantly by software patents. We wish to avoid the danger that redistributors of a free program will individually obtain patent licenses, in effect making the program proprietary.

To prevent this, we have made it clear that any patent must be licensed for everyone's free use or not licensed at all.

The precise terms and conditions for copying, distribution and modification follow.

GNU GENERAL PUBLIC LICENSE

TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND

MODIFICATION

0. This License applies to any program or other work which contains a notice placed by the copyright holder saying it may be distributed under the terms of this

General Public License. The "Program", below, refers to any such program or work, and a "work based on the Program" means either the Program or any derivative work under copyright law: that is to say, a work containing the

Program or a portion of it, either verbatim or with modifications and/or translated into another language.

(Hereinafter, translation is included without limitation in the term "modification".) Each licensee is addressed as

"you".

Activities other than copying, distribution and modification are not covered by this License; they are outside its scope. The act of running the Program is not restricted, and the output from the Program is covered only if its contents constitute a work based on the Program

(independent of having been made by running the Program).

Whether that is true depends on what the Program does.

1. You may copy and distribute verbatim copies of the

Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish

on each copy an appropriate copyright notice and disclaimer of warranty; keep intact all the notices that refer to this

License and to the absence of any warranty; and give any other recipients of the Program a copy of this License along with the Program.

You may charge a fee for the physical act of transferring a copy, and you may at your option offer warranty protection in exchange for a fee.

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Program, and copy and distribute such modifications or work under the terms of Section 1 above, provided that you also meet all of these conditions:

a) You must cause the modified files to carry prominent notices stating that you changed the files and the date of any change.

b) You must cause any work that you distribute or publish, that in whole or in part contains or is derived from the Program or any part thereof, to be licensed as a whole at no charge to all third parties under the terms of this License.

c) If the modified program normally reads commands interactively when run, you must cause it, when started running for such interactive use in the most ordinary way, to print or display an announcement including an appropriate copyright notice and a notice that there is no warranty (or else, saying that you provide a warranty) and that users may redistribute the program under these conditions, and telling the user how to view a copy of this

License. (Exception: if the Program itself is interactive but does not normally print such an announcement, your work based on the Program is not required to print an announcement.)

These requirements apply to the modified work as a whole.

If identifiable sections of that work are not derived from the Program, and can be reasonably considered independent and separate works in themselves, then this License, and its terms, do not apply to those sections when you distribute them as separate works. But when you distribute the same sections as part of a whole which is a work based on the Program, the distribution of the whole must be on the terms of this License, whose permissions for other

licensees extend to the entire whole, and thus to each and every part regardless of who wrote it.

Thus, it is not the intent of this section to claim rights or contest your rights to work written entirely by you; rather, the intent is to exercise the right to control the distribution of derivative or collective works based on the

Program.

In addition, mere aggregation of another work not based on the Program with the Program (or with a work based on the

Program) on a volume of a storage or distribution medium does not bring the other work under the scope of this

License.

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a) Accompany it with the complete corresponding machine-readable source code, which must be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or,

b) Accompany it with a written offer, valid for at least three years, to give any third party, for a charge no more than your cost of physically performing source distribution, a complete machine-readable copy of the corresponding source code, to be distributed under the terms of Sections 1 and 2 above on a medium customarily used for software interchange; or,

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The source code for a work means the preferred form of the work for making modifications to it. For an executable work, complete source code means all the source code for all modules it contains, plus any associated interface definition files, plus the scripts used to control compilation and installation of the executable. However, as a special exception, the source code distributed need

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to satisfy simultaneously your obligations under this

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If any portion of this section is held invalid or unenforceable under any particular circumstance, the balance of the section is intended to apply and the section as a whole is intended to apply in other circumstances.

It is not the purpose of this section to induce you to infringe any patents or other property right claims or to contest validity of any such claims; this section has the sole purpose of protecting the integrity of the free software distribution system, which is implemented by public license practices. Many people have made generous contributions to the wide range of software distributed through that system in reliance on consistent application of that system; it is up to the author/donor to decide if he or she is willing to distribute software through any other system and a licensee cannot impose that choice.

This section is intended to make thoroughly clear what is believed to be a consequence of the rest of this License.

8. If the distribution and/or use of the Program is restricted in certain countries either by patents or by copyrighted interfaces, the original copyright holder who places the Program under this License may add an explicit geographical distribution limitation excluding those countries, so that distribution is permitted only in or among countries not thus excluded. In such case, this

License incorporates the limitation as if written in the body of this License.

9. The Free Software Foundation may publish revised and/or new versions of the General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns.

Each version is given a distinguishing version number. If the Program specifies a version number of this License

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10. If you wish to incorporate parts of the Program into other free programs whose distribution conditions are different, write to the author to ask for permission. For software which is copyrighted by the Free Software

Foundation, write to the Free Software Foundation; we sometimes make exceptions for this. Our decision will be guided by the two goals of preserving the free status of all derivatives of our free software and of promoting the sharing and reuse of software generally.

NO WARRANTY

11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE

IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY

APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING

THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE

PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER

EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE

IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A

PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND

PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM

PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY

SERVICING,

REPAIR OR CORRECTION.

12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR

AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY

OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM

AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING

ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES

ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM

(INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING

RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD

PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY

OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS

BEEN ADVISED OF THE

POSSIBILITY OF SUCH DAMAGES.

END OF TERMS AND CONDITIONS

How to Apply These Terms to Your New Programs

If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms.

To do so, attach the following notices to the program.

It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found.

<one line to give the program's name and a brief idea of what it does.>

Copyright (C) <year> <name of author>

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public

License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR

PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General

Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street,

Fifth Floor, Boston, MA 02110-1301 USA.

Also add information on how to contact you by electronic and paper mail.

If the program is interactive, make it output a short notice like this when it starts in an interactive mode:

Gnomovision version 69, Copyright (C) year name of author

Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.

This is free software, and you are welcome to redistribute it

under certain conditions; type `show c' for details.

The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, the commands you use may be called something other than `show w' and `show c'; they could even be mouse-clicks or menu items--whatever suits your program.

You should also get your employer (if you work as a programmer) or your school, if any, to sign a "copyright disclaimer" for the program, if necessary. Here is a sample; alter the names:

Yoyodyne, Inc., hereby disclaims all copyright interest in the program

`Gnomovision' (which makes passes at compilers) written by James Hacker.

<signature of Ty Coon>, 1 April 1989

Ty Coon, President of Vice

This General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library.

If this is what you want to do, use the GNU Lesser General

Public License instead of this License.

To download a copy of the GPL sources for C-NaviGator: ftp://ftp.cctechnol.com/C-Nav/C-NaviGator_Support.tar.gz

For a copy on CDROM, contact:

C-NaviGator GPL’d Source

730 E. Kaliste Saloom Road

Lafayette, LA 70508, USA

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