TRIMBLE EUROPE 110610 User Manual

Power-Off Screen Hold down the Power button for a few seconds. The Spectra

Precision logo will appear on the screen.

After a few seconds, the message “Powering off...” will follow, indicating that the receiver is being turned off.

If the anti-theft protection is still enabled when you ask for receiver power-off, a message will ask you to confirm your request.

If you wish to keep using the anti-theft protection, press OK and then the receiver will complete the power-off sequence as described above.

If you want to remove the anti-theft protection before turning off the receiver, press Escape, go back to Advanced Settings to remove the anti-theft protection (see page 37). Then you can turn off the receiver as explained above.

Using a USB Key

To Copy Files Whenever you connect a USB key to the receiver via cable

P/N107535, the following screen is displayed:

This screen is displayed for a few seconds. If you press OK while this screen is still displayed, all the G-files and log files stored in the receiver will be copied to the root folder on the USB key (or will overwrite the files with same name). Otherwise the copy operation will be skipped and the receiver will come back to the General Status screen. The screen looks like this while the files are being copied.

To Upgrade the

Firmware

195

The same will happen if you power on the receiver with a USB key already connected to the receiver.

When a new firmware upgrade is available, it is easy to install the new firmware using a USB key.

• Use your computer to copy the installation file (a *.tar file) to the root directory of the USB key.

• The receiver being turned off, connect the USB key to the receiver through cable P/N 107535 (provided).

• Press the OK button and the Power button simultaneously for a few seconds. This starts the upgrade.

The screen will read successively:

{Spectra Precision logo} USB Upload Upgrading Firmware Step 1/5 Upgrading Firmware Step 2/5 Upgrading Firmware Step 3/5 Upgrading Firmware Step 4/5 Upgrading Firmware Step 5/5 Upgrading Firmware Complete {Booting: Spectra Precision logo} {Regular receiver startup to General Status screen}

Let the receiver proceed with the upgrade. Do not turn off the receiver while the upgrade is in progress.

NOTE: If there is no USB key connected or the key does not contain any firmware upgrade file, then the process will abort after a few seconds.

Because data has to be decompressed on the USB key during an upgrade, the USB key must be unlocked, with at least 100 MBytes of free memory, before starting the upgrade. The upgrade will fail if there is not enough free space on the key.

Getting Started With the Web Server

Introduction to the

Web Server

Description and Function

The Web Server is a receiver-embedded, HTML-based firmware application, designed to enable the receiver owner (the “administrator”) to monitor and control the SP90m GNSS receiver through a TCP/IP connection.

Running the Web Server for the First Time

As the receiver owner, after establishing a TCP/IP connection between your computer and the receiver (via its Ethernet port or via WiFi; see page 52 and page 47), do the following:

• Run a web browser on your computer.

• Type the IP address (or host name) of the receiver in the web browser, then press the Enter key (see page 51).

This will launch the Web Server in the receiver, which in turn will open a web page in the web browser.

Depending on how the Web Server has been configured, you may be asked to log in. The first time you launch the Web Server, use the default connection profile (the “administrator profile”) to log in. This profile is the following:

– Username: admin – Password: password You can customize the administrator profile by changing

the username and password. The Web Server will let you do this from its Security page (see on-line Help file attached to this page).

Security

The receiver owner may restrict the access to the Web Server by implementing one of the three possible security levels described below, sorted from the highest to the lowest security level:

1. Enabled: On launching the Web Server, the user is requested to log in by entering a username and password.

After having logged in, the user has full control over the receiver (operation monitoring, access to configuration).

As the administrator, you may decide to share the administrator profile (username and password) with other trustworthy users. You may also create new connection profiles for some other authorized users using $PASH commands.

Remember that registered users have exactly the same rights as the administrator, including managing users through $PASH commands.

2. Enabled with Anonymous Access: Anyone who has been

given the IP address or host name of the receiver has direct access to the Web Server (no log-in required). Only receiver monitoring is allowed in this case. An anonymous user CANNOT change the receiver configuration.

After the Web Server has been launched with this level of security, the administrator, or any other authorized user, can log in on the Security page (see on-line Help attached to this web page).

3. Disabled: No security is implemented with this option.

Anyone who has been given the IP address or host name of the receiver has direct access to the Web Server, both for monitoring the receiver or changing its configuration.

With this low protection level, the receiver owner will be well-advised to keep the receiver IP address or host name

as confidential as possible.

WiFi-Based TCP/IP

Connection

Setting Up the WiFi Device

• If the WiFi device has been turned off, it first needs to be turned back on:

– On the receiver front panel, press one of the horizontal

keys until you see the WiFi screen.

–Press OK. – Select ON:

–Press OK again. After a few seconds the screen

displays “WiFi ... ON”.

• Then you should indicate how the WiFi device will be

power-controlled and whether it will operate as a WiFi client, as WiFi access point or both. Follow the steps below:

– The previous screen being still displayed, press OK. – Select Settings:

–Press OK again. – Choose a power mode for the WiFi device: press OK,

select either Manual or Automatic (see explanations on

page 35 before making a choice) and then press OK. – Press any of the vertical keys and then press OK. – Choose an operating mode for the WiFi device: select

either Client, Access Point or AP and Client, depending on

the use case (see the next three sections below) and

then press OK. – On your laptop or smart phone, start searching for WiFi

devices. When your SP90m receiver has been found,

select it and then enter the WiFi key (by default the

receiver serial number) to allow a WiFi connection with

the receiver.

– Back on receiver side, press to go back to the WiFi

“root” screen. If you have selected Access Point or AP

and Client, you will be able to read the IP address of the

WiFi access point in the lower line. Type in this IP

address (fixed, static address: 192.168.130.1) in your

computer or smart phone’s web browser to launch the

receiver’s Web Server.

When a WiFi connection is active, one or two of the

following icons appear on the General Status screen:

The first one indicates that the WiFi device is used as

an access point and the second one as a client.

Using the WiFi Device as Access Point

WiFi

Access Point WiFi

Client

Public Internet

Ethernet cable

Hub or Switch

Local Network

Gateway

or ADSL Modem

WiFi

Local

Network

WiFi

Client

Remote User

Use the receiver’s WiFi device as access point in the following cases:

• You want to access the Web Server from any WiFi-capable device such as a computer or a mobile device (e.g. smart phone).

• You are located within WiFi range of the SP90m.

Using the WiFi Device as Client

Use the receiver’s WiFi device as client in the following cases:

• You want a remote access to the Web Server and Internet is easily accessible from the location where you are.

• The SP90m is operated in a location where only a local WiFi network is available.

To select a WiFi network, you have to run the Web Server:

• Go to Receiver> Network> WiFi

• Unless already done, turn on the WiFi device, select the client mode and click Configure.

• Scan for WiFi networks, select one and then connect to it. The WiFi screen on the receiver should look as shown.

Using the WiFi Device as both Access Point and Client

Use the receiver’s WiFi device as both access point and client in the following cases:

• You want to access the Web Server from your computer or

smart phone.

• The SP90m is configured to receive or transmit

corrections over the Internet via WiFi.

• You are located within WiFi range of the SP90m.

Web Server

WiFi

Client

In this use case, the Web Server will be run from the smart phone via the receiver’s WiFi device used as access point, whereas corrections will be routed over the Internet using the receiver’s WiFi device as client.

WiFi

Access Point

WiFi

Client

Data

Network

Public Internet

WiFi

Local

Ethernet-Based

TCP/IP Connection

In this use case, you will have to use a standard Ethernet cable (fitted with an RJ45 connector at either end) to connect the receiver to the local network.

To make this connection successful, you may have to take advice from your IT expert, depending on the local IP network environment. You should inform this person of the following before proceeding:

• The SP90m is not fitted –and cannot be fitted– with a

firewall. If a firewall is needed in your local network, it should be installed on a device other than the SP90m.

• HTTP port #80 is used by default in the receiver to access

the Web Server.

The choice of using the DHCP mode or not within the local network is also the decision and responsibility of the IT expert.

Typically, there are two possible cases of TCP/IP connection:

• TCP/IP connection within a local network.

• TCP/IP connection through the public Internet. These are detailed in the sections below. NOTE: It is assumed that the reader knows how to send

$PASH commands to the receiver.

Setting Up the Ethernet Device

• If the Ethernet device has been turned off, you first need to turn it back on:

– On the receiver front panel, press one of the horizontal

keys until you see the Ethernet screen.

–Press OK. – Select ON:

–Press OK again. After a few seconds the screen

displays “Ethernet ON”.

• Then you should indicate whether the receiver will be assigned a static IP address (DHCP off) or a dynamic IP address (DHCP on). If you don’t know which option to use, ask your local IT expert. Follow the steps below:

– The previous screen being still displayed, press OK. – Select Settings:

–Press OK again. – Choose the desired option and then press OK. – If you chose DHCP Mode: ON, there is nothing else to be

done. If you chose DHCP Mode: OFF, press one of the vertical

arrows to access the Static Address screen. Press OK and then enter successively each of the figures making up the static IP address. Press OK when you are done.

When the IP connection is active, the icon below appears on the General Status screen:

NOTE: If you activate DHCP and there is no DHCP server in your network responding to the request, a static IP address (of the type 169.254.1.x) will be automatically assigned to the receiver (and displayed on the Ethernet screen). This is the IP address you should choose to connect to.

TCP/IP Connection Within a Local Network

Local Network

Ethernet cable

Hub or Switch

Gateway or

ADSL Modem

Public Internet

Ethernet port

SP90m

Local User

In this use case, the receiver and the computer are connected to the same local area network (LAN) and may even be in the same room. Here the communication will not take place through the public Internet, but simply within the local network.

The connection diagram typically is the following.

The valid receiver IP address is the one shown in the lower line on the Ethernet screen.

Example indicating the IP address to use with DHCP On:

TCP/IP Connection Through the Public Internet

Public Internet

Ethernet cable

Hub or

Switch

Public IP address

Local Network

Ethernet cable

Hub or

Switch

Gateway

or ADSL Modem

Gateway

or ADSL Modem

Ethernet port

SP90m

Remote User

In this use case, the receiver and computer are connected to different local networks. Here the communication will necessarily take place through the public Internet.

The connection diagram typically is as follows.

In this configuration, the IT expert should take all the necessary steps for the receiver owner to be able to access the SP90m through the public IP address of the local network. In

this case, the IP address shown on the receiver display screen is NOT the one to be entered in the web browser.

It is therefore the responsibility of the IT expert to provide the appropriate connection information:

<IP address:port number> or host name

Introduction to

Multi-Operating

Mode

The SP90m is a multi-application GNSS receiver, making it possible to use different operating modes simultaneously.

The limitation to that feature is very simple to understand:

The maximum number of baselines the SP90m can calculate simultaneously is 3. The capability for the SP90m to support

several operating modes simultaneously is simply derived from that statement.

NOTE: Working in a Trimble RTX mode does not “consume” a baseline, which means that the above statement would be more accurate if we said, “The maximum number of baselines the SP90m can calculate simultaneously is 3 + RTX”.

The consequences of this rule are as follows:

• In single-antenna configuration:

– In Hot Standby RTK, you can configure the receiver to

use up to three independent correction sources (= three baselines), thus making it possible to have up to two different backup position solutions available in case the first source of position solution fails.

– In Hot Standby RTK + Relative RTK, you can only set

two independent correction sources (= two baselines), to have a backup position solution available in case the first source of position solution fails. The third baseline is dedicated to the Relative RTK mode.

• In a two-antenna configuration, the heading mode may be

combined with all of the existing rover modes: – Autonomous –RTK – Hot Standby RTK – RTK + Relative RTK – Only Relative RTK –Dual RTK – Dual Relative RTK However, in Hot Standby RTK, there can only be two

independent sets of corrections used (not three because one baseline is dedicated to computing heading).

Besides, the rover and moving base modes can be run simultaneously. To make this work, you should first configure the receiver as a rover, then as a moving base (and not the other way round). That way, while base corrections will be generated and delivered via your programmed output messages, the receiver will continue to compute RTK positions for its own location provided the required external corrections continue to enter the receiver.

Using SP90m With a Single Antenna

The reader is supposed to know how to run the Web Server (see Getting Started With the Web Server on page 46) and how to use the receiver user interface (see Receiver User Interface on page 26) before reading this section.

Remember, when using the Web Server, at any time you can access context-sensitive help by pressing this key:

Specifying the

Model of Antenna

Used

When using one single GNSS antenna connected to SP90m, only GNSS input #1 can be used. GNSS input #2 must not be used in a single GNSS antenna setup.

The setting described below is required prior to configuring the receiver in any of the operating modes described in the following sections.

Use the Web Server to specify the model of antenna connected to GNSS input #1:

• Go to Receiver > Position > Sensors/Antennas Setup.

• Set Multi-Sensor Mode to Single Antenna.

• Choose the point on the antenna for which you want the SP90m to compute the position (L1 phase center, ARP or ground mark).

• Describe the model and height of antenna used as the primary antenna:

– Manufacturer – Antenna name and its RINEX name. – Method used to measure the antenna height (i.e.

choice of the point on the antenna from which the height measurement is performed).

– Value of measured distance according to the chosen

antenna height measurement method.

NOTE: Entering the height makes sense if you want to get the position of the ground mark or if you enter the ground mark coordinates as a base’s reference position.

• Keep the secondary antenna defined as UNKNOWN.

•Press Configure. The antenna model is now set.

NOTE: When configuring a static base from the receiver front panel, you will be able to select the model of antenna used (for the primary antenna). By default, if you leave the base mode to operate the receiver as a rover, the receiver will assume this antenna model is still used in the rover configuration

Raw Data

GNSS Raw Data

Acquisition

Recording

On the receiver’s General Status screen, the following icons will appear in succession at a rate of 1 second when the receiver is actually collecting raw data:

Using the Web Server

Using the Web Server to launch data recording is particularly suitable for remote-controlled, static raw data collection.

• Go to Receiver > Memory.

• Enable Data Recording.

• Enter a site name for the location occupied by the

receiver.

• Choose the memory where to save the raw data file.

• Choose a recording interval in Hz. Additionally, you may

ask the receiver to record the “TTT” message resulting from the advent of any incoming external event and/or the “PTT” message providing the time-tagging of the PPS signal.

• Click Configure. The receiver starts recording the default

messages programmed on port M (as listed after Data

type). To change the content of this message, refer to Raw Data Recording on page 77).

In the right part of the Memory tab screen, at the bottom of the list of files stored in the selected memory, you can now see – shown in red – the name of the file being created.

Working from the Receiver Front Panel

Working from the receiver front panel to launch data recording allows a rover operator to choose between “Static” or “Stop & Go” data collection. A USB key connected to the receiver front panel may be used to save the raw data file once created.

• Press one of the horizontal keys until you see the “Record

OFF” screen.

•Press OK.

• Choose the option that suits your requirements in terms of data collection type (Static or Stop & Go), the storage location (Mem or USB) used to save the file, then press OK.

This starts the data recording. Refer to Raw Data Recording on page 42 to learn more about the workflow used.

Autonomous or

SDGPS (SBAS)

Rover

XYZ or

Lat-Lon-Height

Position

On the receiver’s General Status screen, the receiver will display “AUTO” or “SDGPS” when computing a position respectively in autonomous or SDGPS mode. The computed position is diplayed after pressing .

Use the Web Server to configure the receiver:

• Go to Receiver > Position > Rover Setup

• Set Processing Mode to Autonomous

• Additionally, in the Other Settings section, you may change the primary GNSS system used (GPS is the default selection), limit the level of position accuracy to SBAS Differential Position or Standalone Position.

• Select the model of dynamics that suits the movement pattern of your rover best.

• Click Configure. The receiver starts operating in autonomous mode. If SBAS satellites are received, the receiver will be able to deliver positions with SBAS Differential accuracy (provided SBAS is enabled; see Receiver > Satellites).

RTK or DGPS Rover

XYZ or

Lat-Lon-Height

Position

One set of corrections via:

• Internet (Ethernet, cellular modem, or WiFi), or

• UHF Radio

On the receiver’s General Status screen, the receiver will display “FIXED” (with short “FLOAT” transition time) or “DGPS” when computing a position respectively in RTK or DGPS mode. The computed position is displayed after pressing .

When corrections are received and used, is displayed on the General Status screen together with the age of corrections (see General Status on page 28).

To configure the receiver as a DGPS or RTK rover, use the Web Server as follows:

• Go to Receiver > Position > Rover Setup.

• Set Processing Mode to RTK.

• Select how the corrections are being transmitted to the

receiver by setting Input Mode accordingly. If you choose Automatic, the receiver will find by itself which of its ports is used to acquire corrections. If you choose Manual, you need to specify this port.

• Additionally, in the Other Settings section, you may change

the primary GNSS system used (GPS is the default selection), limit the level of position accuracy to less than what the receiver can actually achieve in this case. Typically you will choose RTK Position or (RTCM) Differential Position to match with the selected operating mode (respectively RTK or DGPS).

• Select the model of dynamics that suits the movement

pattern of your rover best.

• Click Configure.

• Set the device used by the receiver to acquire corrections:

– If corrections are received via radio, go to Receiver >

Radio to enter all radio parameters. You may use the internal radio or an external radio.

– If corrections are received over the Internet, go to

XYZ or

Lat-Lon-Height

Position

Two independent sets of corrections via:

• Internet (Ethernet, cellular modem, or WiFi), or

• UHF Radio

Receiver > Network to set the device used (this may be Ethernet, Modem or WiFi; more information about how to set up theses devices can be found in the relevant context-sensitive Help). Then go to Receiver > I/Os to

start data reception in NTRIP or Direct IP mode.

Hot Standby RTK

Rover

Hot Standby RTK is similar to RTK except that two or three independent sets of corrections are received instead of one. The receiver will choose the best of the two or three sets of corrections in order to improve position availability and accuracy.

On the receiver’s General Status screen, the receiver will display “FIXED” (with short “FLOAT” transition time) when computing a position in Hot Standby RTK mode. The computed position is diplayed after pressing .

When at least one set of corrections is received and used, is displayed on the General Status screen together with the age of corrections (see General Status on page 28). The displayed age of corrections is always that of the corrections actually used in the position computation.

To configure the receiver as a Hot Standby RTK rover, use the Web Server as follows:

• Go to Receiver > Position > Rover Setup.

• Set Processing Mode to Hot Standby RTK.

• Select how the two (or three) sets of corrections are being

• Additionally, in the Other Settings section, you may change

transmitted to the receiver by setting Input Mode accordingly. If you choose Automatic, the receiver will find by itself which of its ports are used to acquire the sets of corrections. If you choose Manual, you need to specify each of the ports used.

the primary GNSS system used (GPS is the default

Trimble RTX Rover

X-Y-Z or

Lat-Lon-Height

Position

Trimble RTX service

via IP or satellite

selection), limit the level of position accuracy to less than what the receiver can actually achieve in this case. Typically you will choose RTK Position to match with the selected operating mode.

• Select the model of dynamics that suits the movement

pattern of your rover best.

• Click Configure.

• Set the device used by the receiver to acquire the two sets

of corrections: – If corrections are received via radio, go to Receiver >

Radio to enter all radio parameters. You may use the internal radio or an external radio.

– If corrections are received over the Internet, go to

Using a Trimble RTX service in the SP90m requires that you first buy a subscription to this service. On the other hand, the receiver is ready to operate in Trimble RTX mode (dedicated firmware option has been pre-installed at the factory) provided an L-band capable GNSS antenna is used.

On the receiver’s General Status screen, the receiver will display “RTX” when computing a position using a Trimble RTX service. The computed position is displayed after pressing .

To configure the receiver in RTX, use the Web Server as follows:

• Go to Receiver > Position > Rover Setup.

• Choose the channel through which RTX corrections enter the receiver by setting Corrections Source accordingly:

– If you choose Automatic, the receiver will find by itself

which channel to use (L-Band or NTRIP).

– If you choose L-Band, the receiver will expect RTX

corrections to come from a satellite.

– If you choose NTRIP, the receiver will expect RTX

corrections to come from the Internet.

NOTE: RTX corrections will come from the Internet only after you have taken all the steps to implement an active IP connection, either via GSM, WiFi or Ethernet. The connection to the remote RTX service will then be automatic.

• Set Engine Mode to ON.

• Select the datum and plate in which to deliver the coordinates of the computed position:

– If you select OFF, the position will be expressed in the

ITRF2014 current epoch datum.

– If you select ON, choose a datum and a tectonic plate.

• Additionally, in the Other Settings section, you may change the primary GNSS system used (GPS is the default selection), limit the level of position accuracy to less than what the receiver can actually achieve in this case. Typically you will choose PPP Position to match with RTX.

• Select the model of dynamics that suits the movement pattern of your rover best.

• Click Configure.

WARNING: The way you set Processing Mode is very important here. If for example it is set to RTK and every step has been taken to have RTK corrections available (see page 58), then the receiver will automatically choose between RTX and RTK depending on which of these two modes is providing the best position solution. You will be able to know which mode is currently used by taking a look at the receiver’s General Status screen.

RTK + Relative

RTK Rover

Reminder: Relative RTK refers to the ability of the SP90m to compute and deliver the three components of the vector connecting a mobile base to this receiver. The components of the vector are provided with centimeter accuracy, just as is the position of the SP90m, as computed in RTK using corrections received from a static base.

One of the typical applications of Relative RTK is the constant monitoring of the position of a vessel relative to that of another vessel or to the jib of a crane used on a quay.

Two independent sets of corrections via:

• Internet (Ethernet, cellular modem, or WiFi), or

• UHF Radio

Corrections from static base to compute RTK position

Corrections from moving base to compute 3D-vector

3-D Vector

XYZ or

Lat-Lon-Height

Position

3-D Components

of Vector

RTK

Position

On the receiver’s General Status screen, the receiver will display “FIXED” (with short “FLOAT” transition time) when computing a position in RTK mode. The computed RTK position is diplayed after pressing . A new press on this button will display the components of the vector.

When at least one set of corrections is received and used, is displayed on the General Status screen together with the age of corrections (see General Status on page 28).

To configure the receiver in RTK+Relative RTK, use the Web Server as follows:

• Go to Receiver > Position > Rover Setup.

• Set Processing Mode to RTK + Relative RTK.

• Select how the two sets of corrections are being transmitted to the receiver by setting Input Mode accordingly.

If you choose Automatic, the receiver will find by itself which of its ports are used to acquire the two sets of corrections.

If you choose Manual, you need to specify these two ports. The “BRV” line defines the port routing the corrections from a moving base allowing vector computation whereas the “RTK” line defines the port routing the corrections from a static base allowing position computation.

• Select the model of dynamics that suits the movement pattern of your rover best.

• Click Configure.

• Set the device used by the receiver to acquire the two sets of corrections:

– If corrections are received via radio, go to Receiver >

Radio to enter all radio parameters. You may use the internal radio or an external radio.

– If corrections are received over the Internet, go to

Hot Standby RTK+

XYZ or

Lat-Lon-Height

Position

3-D Components

of Vector

Hot Standby RTK

Position

3-D Vector

Three independent sets of corrections via:

• Internet (Ethernet, cellular modem, or WiFi), or

• UHF Radio

Two sets of corrections from static base to compute RTK position

Corrections from moving base to compute 3D-vector

Relative RTK

This mode is similar to RTK+Relative RTK (see page 62) except that the RTK position is a “Hot Standby RTK” one (see also page 59). The combination of these two modes may be summarized as shown in the diagram below.

On the receiver’s General Status screen, the receiver will display “FIXED” (with short “FLOAT” transition time) when computing a position in Hot Standby RTK mode. The displayed age of corrections is always that of the corrections actually used in the position computation. The computed position is diplayed after pressing .

The components of the vector are visible in the Web Server (in Receiver > Position > Vectors tab on the right) or by programming an NMEA VCR or VCT message on one of the receiver ports (see Web Server’s I/Os tab).

When at least one set of corrections is received and used, is displayed on the General Status screen together with the age of corrections (see General Status on page 28).

To configure the receiver in Hot Standby RTK + Relative RTK, use the Web Server as follows:

• Make sure the Heading mode is off.

• Go to Receiver > Position > Rover Setup.

• Set Processing Mode to Hot Standby RTK + Relative RTK.

• Select how the three sets of corrections are being transmitted to the receiver by setting Input Mode accordingly.

If you choose Automatic, the receiver will find by itself which of its ports are used to acquire the three sets of corrections.

If you choose Manual, you need to specify these three ports. The “BRV” line defines the port routing the corrections from a moving base allowing vector computation, whereas the “Standby RTK” lines define the ports routing the corrections (from one or two static bases), allowing position computation.

• Select the model of dynamics that suits the movement pattern of your rover best.

• Click Configure.

• Set the device used by the receiver to acquire the three sets of corrections:

– If corrections are received via radio, go to Receiver >

Radio to enter all radio parameters. You may use the internal radio or an external radio.

– If corrections are received over the Internet, go to

Relative RTK Rover Reminder: Relative RTK refers to the ability for the SP90m to

3-D Components

of Vector

3-D Vector

One set of corrections from moving base via:

• Internet (Ethernet, cellular modem, or WiFi), or

• UHF Radio

Corrections from moving base to compute 3D-vector

compute and deliver the three components of the vector connecting it to a mobile base. The components of the vector are provided with centimeter accuracy.

One of the typical applications of Relative RTK is the constant monitoring of the position of a vessel relative to that of another vessel or to the jib of a crane on a quay.

On the receiver’s General Status screen, the receiver will display “AUTO” or “SDGPS” when computing a position in standalone or SBAS mode. The computed position is displayed after pressing .

When corrections are received and used, is displayed on the General Status screen together with the age of corrections (see General Status on page 28).

To configure the receiver in Relative RTK, use the Web Server as follows:

• Go to Receiver > Position > Rover Setup.

• Set Processing Mode to Only Relative RTK.

• Select how the corrections are being transmitted to the

receiver by setting Input Mode accordingly. If you choose Automatic, the receiver will find by itself which of its ports are used to acquire the corrections. If you choose Manual, you need to specify the port.

• Additionally, in the Other Settings section, you may change

the primary GNSS system used (GPS is the default selection) or change the Output Position Type field. Be

Static or Moving

Base

aware the position computed in Relative RTK, in terms of accuracy, is an SBAS Differential position at best.

• Select the model of dynamics that suits the movement pattern of your rover best.

• Click Configure.

• Set the device used by the receiver to acquire the two sets of corrections:

– If corrections are received via radio, go to Receiver >

Radio to enter all the radio parameters. You may use the internal radio or an external radio.

– If corrections are received over the Internet, go to

Base corrections delivered via:

• Internet (Ethernet, cellular modem, or WiFi), or

• UHF Radio

Using the Web Server

To configure the receiver as a base, use the Web Server as follows:

• Go to Receiver > Position > Base Setup.

•Use the Station ID. field to enter the identification number. Remember, the station ID should comply with the type of correction data format it generates. As a reminder, this is the list of authorized numbers in relation to the format used:

– RTCM 2.3: 0-1023 – CMR/CMR+: 0-31 – ATOM & RTCM3.x: 0-4095

• Select whether the base is stationary (Static) or in motion (Moving).

If you choose Static, you need to specify the exact location of the base. You can do this in two different ways:

– Type in the three geographical coordinates (Latitude,

Longitude, Height) of the base, as well as the position

on the antenna (Reference Position) for which these coordinates are given.

– Or click on the Get Current Position button to make the

currently computed position the new base position. In this case, it is assumed that the receiver actually calculates a position at the time you click the button.

As a result, the above three coordinates fields above are overwritten with the current computed position, and the Reference Position field is automatically set to “L1 Phase Center”.

NOTE: The antenna height was entered when specifying the number of antennas used (see page 55).

• Additionally, in the Other Settings section, you may change

the primary GNSS system used (GPS is the default selection).

• Click Configure.

• Set the device used by the receiver to send out its

corrections: – If corrections are broadcast via radio, go to Receiver >

Radio to enter all radio parameters. You may use the internal radio or an external radio.

– If corrections are broadcast over the Internet, go to

Receiver > Network to set the device used (this may be Ethernet, Modem or WiFi; more information about how to set up theses devices can be found in the relevant context-sensitive Help).

• You still have to set which corrections the base will

generate. This is detailed in Base Data Messages on page 76.

NOTE: You may also set a base to use a virtual antenna. This is required when a rover using the corrections from this base has no information on the model of GNSS antenna used at the base. In this case a virtual antenna can be used (ADVNULLANTENNA or GPPNULLANTENNA). If you don’t need a virtual antenna, just keep the Manufacturer field set to OFF.

Working from the Receiver Front Panel

The receiver user interface offers an alternative to the Web Server to set up a static base. Please follow the detailed procedure described in Base Mode on page 39).

+ 58 hidden pages

TRIMBLE EUROPE 110610 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual