STARLINK INVICTA 210S Manuel utilisateur

INVICTA®210S

DGPS/BEACON RECEIVER

Operation Manual

Products and Services for Professional (D)GPS Users

Starlink Incorporated

500 Center Ridge Drive

Suite 600

Austin, TX. 78753

Voice: 1-512-454-5511

FAX: 1-512-454-5570

www.starlinkdgps.com

Copyrights

photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable form

without prior written consent from Starlink Incorporated.

Printed in the United States of America.

Part No. 016-0171-095 Rev C

Starlink Incorporated

Invicta 210S Operation Manual page 3of 46

Table of Contents

Introduction....................................................................................................... 5

Functional Description ...................................................................................... 5

GPS Receiver ............................................................................................. 5

MSK Radiobeacon Receiver ...................................................................... 6

L-Band OmniStar™ Receiver.................................................................... 6

Front Panel Control.................................................................................... 7

MBA-4 Antenna......................................................................................... 7

Utility Software................................................................................................. 8

Receiver Firmware Updates.............................................................................. 8

Special Features ................................................................................................ 8

Installation....................................................................................................... 10

Initial Power up........................................................................................ 10

Power ....................................................................................................... 12

Receiver ................................................................................................... 12

MBA-4 Antenna....................................................................................... 12

Antenna Cable.......................................................................................... 13

Operation......................................................................................................... 14

Initial Startup ........................................................................................... 14

Activation of OmniStar™ Service ........................................................... 14

Normal Operation .................................................................................... 14

Front Panel Display......................................................................................... 15

Home Screen ................................................................................................... 18

Receiver Display ............................................................................................. 19

GPS Display.................................................................................................... 20

RTCM Display................................................................................................ 22

Beacon Display ............................................................................................... 23

OmniStar Display............................................................................................ 25

Utility Options................................................................................................. 27

Receiver Configuration Menu......................................................................... 29

GPS Configuration Menu................................................................................ 31

RTCM Config Menu ....................................................................................... 32

Beacon Config Menu ...................................................................................... 33

OmniStar Config Menu................................................................................... 34

Output Config Menu ....................................................................................... 36

Troubleshooting .............................................................................................. 38

Checking Your Installation ...................................................................... 38

Receiver Specifications ................................................................................... 39

Antenna .................................................................................................... 39

Starlink Incorporated

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Configuration .................................................................................................. 40

Rear Panel Serial Interface....................................................................... 40

Power Connector...................................................................................... 40

Global Positioning System (GPS) ................................................................... 41

Differential GPS (DGPS) Beacon ................................................................... 42

DGPS OmniStar. ............................................................................................. 43

NMEA Messages ............................................................................................ 44

Sample GGA Message Structure..................................................................... 45

Warranty.......................................................................................................... 46

Starlink Incorporated

Invicta 210S Operation Manual page 5of 46

Introduction

The Starlink Invicta® 210S GPS receiver will provide you with highly accurate and reliable

DGPS navigation. This receiver is ideal for GIS, professional marine, precision farming or any

other application where a high performance, rugged, and simple to operate receiver is required.

Functional Description

The Starlink Invicta®210S is a 10 channel high-performance GPS receiver with two built-in

DGPS correction receivers. You can select the built-in MSK Radiobeacon receiver, L-Band

OmniStar™ receiver, or an external RTCM source for your DGPS corrections. You can even let

the receiver automatically select its correction source by using the auto DGPS input mode.

DGPS corrections are needed to improve the accuracy of standard GPS. If you operate without

DGPS corrections, the accuracy will be about 10 meters RMS. This means the receiver can have

errors as far off as 33 feet in any direction 67% of the time, and greater 33% of the time. Prior to

the government turning off Selective Availability (SA), this error was 100 meters RMS. With

DGPS corrections, the receiver can give you positions with a RMS accuracy of 1-meter (an error

equal to about the length of your arm in any direction).

Reference stations measure GPS errors and broadcast correction messages. The Invicta receives

these DGPS corrections either from a free radiobeacon or via the OmniStar™ service and

produces accurate position reports.

Since the Invicta 210S has both a radiobeacon receiver and an L-Band OmniStar™ receiver, you

have a choice of either source for your DGPS corrections. If you can receive one of the free

radiobeacon stations then you can use it for your corrections. If you are not in range of a free

radiobeacon, you can receive corrections via an L-Band satellite service offered by OmniStar™.

The OmniStar™ service is not free but is available over land almost everywhere on the planet.

For the functional description we can break the Invicta 210S into several parts. Each is described

in the following sections.

GPS Receiver

The Invicta 210S GPS receiver provides real-time positions with a RMS accuracy of 1-meter.

The receiver can generate position solutions once per second or optionally at 10 solutions per

second. Position solutions are output on either the front panel or via RS232 in NMEA format

messages.

The Invicta 210S has two RS232 ports and can communicate at 1200, 2400, 4800, 9600, 19.2K,

or 38.4K BPS on either/both port(s). The baud rate and the desired output messages can be

configured either from the front panel or via the serial port using configuration messages.

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NMEA format messages are standard for most GPS receivers and therefore should be

compatible with almost any software or hardware application designed to work with GPS. A

document describing the NMEA messages supported by the Invicta is available on the Starlink

web site.

MSK Radiobeacon Receiver

Invicta receivers include a dual-channel beacon receiver with advanced impulse noise

processing. USCG, Canadian, or IALA (International Association of Lighthouse Authorities)

beacon stations can be used to provide free DGPS corrections for ranges of up to 300 miles.

Dual channels are used to provide reliable automatic station selection. The receiver can track

one beacon to get corrections and use the other channel to test for new or better stations. The

switch between an old and a new beacon occurs instantly with no loss of differential data.

The receiver actually has a third channel to detect impulse noise. Impulse noise is caused by

thunderstorms or by man made sources such as the ignition system on a car. The third channel

detects these pops and clicks in the signal and automatically removes them. Starlink has always

been the absolute leader in impulse noise processing which is the real performance-limiting

factor in beacon receiver design.

L-Band OmniStar™ Receiver

The Invicta 210S has a built in satellite differential correction receiver in addition to the dual

channel radiobeacon receiver. The L-Band receiver gets corrections from a satellite service

offered by OmniStar™. The OmniStar™ service is not free, but it is available over most of the

land on earth.

To receive the L-Band corrections you first must contact OmniStar™ to activate the service.

OmniStar™ contact information is included in the package with the receiver. You can check

service details via the OmniStar™ web site at http://www.omnistar.com.

The OmniStar™ signal offers some possible advantages over radiobeacon signals.

Radiobeacon signals are sometimes interfered with by thunderstorms or other sources of man

made noises commonly found around computer equipment. The OmniStar™ signal is very

high frequency and usually not interfered with by thunderstorms or noise generated by common

computer equipment.

Sometimes the radiobeacon is the best choice because the OmniStar™ signal is line-of-sight. If

you have a tree or hill between you and the OmniStar™ satellite you might not receive the

signal. Radiobeacon signals are low frequency and therefore travel around and over the hills

and through the trees. Which source you choose will depend on your specific environment and

whether or not you can receive a free radiobeacon.

Starlink Incorporated

Invicta 210S Operation Manual page 7of 46

Front Panel Control

Invicta series receivers have a front panel control and display that makes it easy to configure the

receiver and check its status. The front panel includes a two-line LCD display and a four-

button keypad.

The system has several menus, which are displayed in a user-friendly form. The front panel

might display “No DGPS Corr” to indicate that it’s not receiving DGPS corrections. It’s very

easy to use.

A complete description of the menus and key presses are provided for you following the ‘Home

Screen’ section found later on in this manual.

There is an optional remote front panel which can be used to control and monitor the receiver in

applications where the normal front panel is inaccessible. Contact Starlink for more

information. Information on the remote front panel is also on our web site

(http://www.starlinkdgps.com) currently under Receiver accessories.

MBA-4 Antenna

The MBA-4 antenna combines the GPS, radiobeacon, and L-Band correction antennas into a

single package. The antenna can be mounted using a standard marine mount (1”-14), or as an

option to either a survey pole mount (5/8”-11) or to a metal surface using a magnetic mount

adapter. The survey pole and magnetic mount adapters are available separately from Starlink.

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Utility Software

Utility software is not required to setup or use the receiver in most applications. However, several

utility programs are available from Starlink. You can get these programs free from the Starlink

web site at http://www.starlinkdgps.com.

Receiver Firmware Updates

Firmware is the software which resides inside the receiver. Starlink continues to improve the

performance of its receiver products and sometimes makes special features available. When this

happens, a new version of firmware is created. You can download this firmware at no additional

cost from the Starlink web site. You will need to connect the receiver to a PC and run the

included programming software to update the unit. You should check the web site every month

for a new version of firmware.

It should be noted that updates cover such things as bug fixes and performance enhancements.

Sometimes upgrades can also be programmed into the receiver using the utility software. Up-

grades also include things such as the 10 position solutions per second option, which does have

additional cost. The good thing is that you can install these upgrades and updates. You will need

to get a code from Starlink to install the upgrades but the process is simple.

Special Features

The Invicta has several special features that make it ideal for some applications. Starlink is always

interested in adding special features to the Invicta receiver. If you have a good idea, please send

us an email at idea@starlinkdgps.com or give us a call at 800-460-2167. We can’t guarantee that

your idea will be implemented but we do want to consider it.

PPS Out

The PPS output is normally used to provide a timing signal to another device. PPS stands for

Pulse Per Second and that’s what the signal does. Once each second the signal pulses to

indicate the start of a GPS second. The GPS second is a time reference, which can be used to

synchronize systems. If your application requires very accurate time then the PPS output may

be required.

The PPS output can also be used as a RADAR or Speed Log output as described in the

following sections.

Radar Out

The Invicta receivers can simulate a Doppler RADAR commonly used on agricultural

equipment for detecting speed. The GPS receiver is always calculating speed and can generate

the signals, which you would get from a RADAR unit.

Starlink Incorporated

Invicta 210S Operation Manual page 9of 46

To use this feature you will need a special cable from Starlink. It should be noted that the GPS

can only determine speed when it’s navigating. If a tree line blocks too many satellites or if for

some other reason the Invicta is unable to navigate, then the RADAR output could become

invalid.

The scaling factors and timing controls that govern the operation of this feature can be

controlled via a serial configuration message as defined in the Serial Protocol Definition

document. The receiver uses default settings that should provide reasonable operation without

the need for special configuration.

Speed Log

Speed logs are commonly used in marine applications to keep charts aligned on ARPA RADAR

displays. ARPA RADAR is similar to the RADAR systems used by air traffic controllers but is

found on large ships. The user can watch for other ships and even navigate by looking at the

display. Some of these displays have a map overlay that must be moved as the ship moves.

To keep the map displayed correctly, the ARPA gets data from a gyro-compass for direction

and a speed log device for speed. Speed logs are typically made from a paddle wheel, which

sits in the water and spins as the ship moves along.

The speed log output from the Invicta simulates the speed log device and provides considerably

better performance. The normal speed log device is subject to errors caused by currents and is

often slow to respond to changes in the ship speed. The Invicta generates the same signals as

does the speed log but is not subject to errors caused by currents.

To use this feature you will need a special cable from Starlink. The scaling factors and timing

controls that govern the operation of this feature can be controlled via a serial configuration

message. The receiver uses default settings that should provide reasonable operation without

the need for special configuration.

Heading Message Forwarding

NMEA heading messages received on Port B (Aux Port) of the Invicta will automatically be

forwarded to Port A. This is especially useful in applications where a limited number of serial

ports are available for interfacing. For example, a marine charting system can be made using a

standard laptop with only a single serial port. The Invicta would be tied to the PC and the

heading sensor would be tied to the Invicta. The PC charting program would receive both the

GPS position messages and the heading messages using only the one serial port.

Advanced Message Forwarding

The Invicta series receiver supports advanced message forwarding in systems where the

application is designed to take full advantage of this feature. When enabled, all messages

received on Port B of the receiver will be time tagged with GPS time and output on Port A in a

special format.

Starlink Incorporated

page 10 of 46 Invicta 210S Operation Manual

The special format is basically just a prefix that includes the time tag. The time tag is very

important since it is referenced to GPS time and provided with millisecond resolution. It can be

used to completely eliminate latency issues. Latency is usually only an issue in systems where

GPS positions are used to locate data coming from another sensor such as a depth sounder. If

not accounted for, the latency of output can show up as positional errors.

The advanced message forwarding takes care of latency problems in systems where the other

sensor can output NMEA style messages. This feature would also be useful in systems with

limited serial ports if the application developer were to take advantage of this feature.

Installation

Start by selecting a location for each of the various parts of the system. The antenna, for example,

should be carefully located per the guidelines given below. Do not route the cables or

permanently mount the antenna or receiver yet. Once the system is operating, then you can route

the cables and permanently mount the receiver and antenna. This way, you won’t have as much

trouble if a problem is found in your initial locations.

Initial Power up

Invicta receivers are reverse power protected so you should not hurt the receiver if you follow

these steps:

Make sure the receiver is not touching any metal surfaces. Place a piece of paper or something

between the receiver and the metal surface if necessary. If you have the power backwards, a

short will exist between the grounded metal surface and the ground lead (which is power by

accident). This short could burn up the ground wire or blow a fuse. It’s a good idea to isolate

the receiver from your chassis the first time it’s powered up.

Connect the antenna to the receiver but don’t connect any of the other cables. Right now you

should have the antenna temporarily mounted and connected to the Invicta. You should be

ready to apply power.

Turn off all the equipment on your machine. You should have enough battery power to run the

Invicta for an hour or so. You want the other equipment off because it might interfere with the

receiver. Once you get the Invicta working, you will turn on the other equipment and watch for

problems.

Apply power to the receiver. Watch the front panel. It should light up and display a message.

If it does not, you either don’t have power or power is connected backwards. If you’re in a car,

try turning the key on. Check the connections and try again. If you believe that the power

could be reversed, try re-wiring the cable. Starlink uses Red wires for + voltage and Black

wires for ground. If you still have trouble, refer to the Power section below.

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