Connecting to a CORS VRS/RTN Network with Mapping-Grade GPS

Connecting to a CORS VRS/RTN Network with Mapping-Grade GPS

Connecting to a CORS VRS/RTN Network with Mapping-Grade GPS

Seiler Support Note February 2009 Connecting to a CORS VRS/RTN Network with Mapping-Grade GPS Using Continuously Operating Reference Stations (CORS) for a Real-time differential GPS correction source (DGPS) What you need before you start: Quality Wireless Internet access- secured or unsecured OR A Bluetooth enabled mobile phone with DUN (Dial-up Networking) capability A digital data-plan with your mobile phone network provider - digital phone coverage is not enough. • Your mobile phone network provider should be able to provide you with the specific connection details which may include: o A mobile phone network provider access username and password o The mobile phone network provider access point name (APN) o The “Phone Number” required to establish a connection • If the network provider requires a modem “dial string”, user may also require: o The Trimble Dial-String Editor application o The custom dial string for your phone to access mobile phone network provider Note: many phones/ network providers do not require a dial string to establish an Internet connection.

Note: the username and password for the Mobile Phone Network Provider are different than those provided to you by the CORS Network GPS administrator. These are specifically for your mobile phone connection and are unique to the network provider.

Connecting to a CORS VRS/RTN Network with Mapping-Grade GPS

Setting up a Bluetooth connection from your mobile device to your mobile phone 1) Name your mobile phone • In Setup or Owner Information, set the Name of the phone to something other than the default to make sure you are bonding with YOUR device. 2) Make sure that Bluetooth technology is enabled on your mobile phone and that the phone visible or discoverable. • Refer to Phone User’s guide to configure phone to set the name and to put it into Bluetooth discoverable or visible mode. It is usually under Setup or Settings then Bluetooth- phone must have Bluetooth “ON” and be discoverable or visible to complete the bonding process.

• For a Mobile 6 phone, on the phone itself, you may have to select Start Settings System Data Connection and switch data connection to Internal Data Call or USB/Bluetooth modem. Select option: as the modem through Bluetooth. If this is not done, DUN option will not appear as an option after bonding.

Note: in some cases, when the phone is in this state, no calls or web surfing may occur or if you take a call, the VRS real-time correction data stream may be interrupted. 3) On the mobile device (Example GeoXH) select Start Settings Connections Tab Bluetooth. 4) Screen tap on the Mode Tab at the bottom and turn ON Bluetooth, mobile device does not need to be visible to other devices. 5) Screen tap on the Devices Tab 6) Screen tap Add new device… to search for your mobile phone 7) When the mobile device finishes searching for all available Bluetooth devices to connect to, screen tap the name of your device to select it then screen tap Next 8) If no devices appear, check the mobile phone for a Find Me option in the Bluetooth settings and retry.

9) To securely bond with this device, enter a Passcode, type in a four digit number 1111 then press Next Note * will appear as passcode is secret. This is a one time bond passcode, user will not need to remember this passcode in the future.

Connecting to a CORS VRS/RTN Network with Mapping-Grade GPS

10) After pressing Next, look at mobile phone- It should be asking to bond with mobile device, on the mobile phone select Yes or OK then type in the exact same passcode and press OK 11) Message similar to “Pin verified and saved” should appear on phone 12) Partnership settings screen will appear on mobile device, the Display Name: Phone name will appear and services list should appear. 13) Click on the box to Check ON Dialup Networking 14) Screen tap Finish NOTE: If Dialup Networking does not appear, the phone may not be enabled or capable of being used as a Bluetooth Modem and you cannot continue.

Turn phone off and on, reset collector and try bonding to phone again to be sure.

Connecting to a CORS VRS/RTN Network with Mapping-Grade GPS

Building an Internet connection to your mobile phone 1) Close all open windows and programs on Mobile device. 2) On the mobile device press Start Settings select the Connections tab double click on Connections icon • Windows Connection Setting Screen will appear 3) Below My ISP, screen tap on Add a new modem connection Make a New Connection screen will appear 1) Enter a name for your connection. A suggestion would be to fill in phone type plus mobile phone network provider for easy identification. 2) Select Modem type then screen tap on Next • Bluetooth • COM1 if using a cable to the phone If you have Bluetooth selected as modem, the following screen will appear: Settings My Connections screen: NOTE: If modem was selected to be a COM1 device, this screen will not appear 1) Select the Bluetooth device to use to use as a modem to connect to a mobile network 2) Screen tap to highlight your newly created Bluetooth Partnership (no need to press next it will advance automatically)

Connecting to a CORS VRS/RTN Network with Mapping-Grade GPS

etwork Settings screen: 3) Fill in appropriate mobile network provider access number: Verizon #777 Cingular/ ATT *99***1# CellCom #777 US Cellular #777 Nextel S=2 Sprint T-Mobile *99# or *99***1# where the red number may be 1 2 or 3 4) Then press Next Verizon User name: YOUR MOBILE PHONE NUMBER @ vzw3g.com Example 6082791007@vzw3g.com Password: vzw CRITICAL: All letters must be LOWERCASE Leave Domain blank Cingular/ ATT User Name: ISP@CINGULARGPRS.COM Password: CINGULAR1 CRITICAL: All letters must be UPPERCASE Leave Domain blank Cingular and ATT require Special Dial String Commands CellCom User Name: YOUR MOBILE PHONE NUMBER @ cellcom3g.com Password: 1xdata CRITICAL: All letters must be LOWERCASE Leave Domain blank US Cellular, Nextel and Sprint User name: Leave User Name blank Leave Password blank Leave Domain blank T-Mobile User Name: _?_ Password: _?_ Leave Domain blank 5) Press Finish to save this setup Note: Cingular and ATT require a special Dial String Modem Command.

Download and install the Dial String Editor from www.Trimble.com

Connecting to a CORS VRS/RTN Network with Mapping-Grade GPS

Install the Dial String Editor from www.Trimble.com If your mobile phone carrier does not require a custom dial string, skip this install. A Dial String is required by some mobile phone network providers access their network. A special executable program is available from www.Trimble.com for adding a special dial string commands called: DialStringEditor.CAB For all models prior to the Mobile 6 Operating System, there was as Advanced tab where the user could enter the dial string. Now a user must download special executable program to run on the mobile device.

1) Download http://trimble.com/geoxh_ts.asp?Nav=Collection-57323 (as of 08/08) 2) Look below Dial String Editor (Windows Mobile 6) 3) Download DialStringEditor.CAB • From an office computer with internet access, go to www.trimble.com/support • Click on the name of your device, Example GeoXH • Click Downloads then select your device type again if needed • Scroll down to find the Dial String Editor (Windows Mobile 6) Click on it to download the file DialStringEditor.CAB file to your PC 4) Close any applications or files that are running on the mobile device.

5) Using an Activesync connection and Windows Explorer on the PC, copy the file DialStringEditor.CAB to the mobile device.

6) On the mobile device, use Windows Explorer to navigate to the newly copied file and double tap the file to install the application. The following screen may appear: 7) Screen tap Yes to that the mobile device reboots.

Connecting to a CORS VRS/RTN Network with Mapping-Grade GPS

8) On the Mobile device, run the newly installed program, select Start Settings Connections Dial String Editor: 9) Fill in the Dial string for your cellular provide EXACTLY as provided to you, strings are case sensitive. • Cingular &f&d2&c1+cgdcont=1,”IP”,”isp.cingular” • ATT cgdcont=1”IP”.”proxy” 10) Then press Apply and OK to close the Dial String Editor, Close all windows back to the Today screen Test your new connection 1.

Select Start Settings Connections Tab Connections 2. Screen tap on My ISP Manage existing connections

Connecting to a CORS VRS/RTN Network with Mapping-Grade GPS

3. Click and hold stylus down on the connection you just created and screen tap Connect 4. Mobile device should automatically make the Bluetooth connection to the phone and make a connection to the network allowing internet access. • The top status bar Connectivity icon should have two arrows with no “x” not 5. Open an internet session and browse to a page you recognize • Select Start Programs Internet Explorer • Browse to a website like www.seilerinst.com 6. If website appears- you have done everything correctly so far! 7. Press the “X” to close Internet Explorer and then close all remaining windows to get to the TODAY screen of the mobile device.

Possible Error messages If the mobile device or the phone does not have the Bluetooth turned “on”, you will this message. If you are in a cradle with Activesync attached, you will see this message

Connecting to a CORS VRS/RTN Network with Mapping-Grade GPS

Run TerraSync on your Mobile Device From “Today” Screen select Start Programs TerraSync or if it is in the start list select from main Start area Or Screen tap GPS on the screen to run TerraSync Or Press the button below the GPS prompt to run TerraSync.

Connecting to a CORS VRS/RTN Network with Mapping-Grade GPS

Configure TerraSync for Real Time Corrections from a CORS GPS Network Server 1.

Change from STATUS screen to the SETUP screen Screen tap on Real-time Set Choice 1: to External Source 4. Set Choice 2: select use or wait- do not select SBAS. • Wait for real-time Set this if real time results are required and not post process. • Use Uncorrected GPS Set this for a mix of real-time and uncorrected data. Data may have to be post processed. • Integrated SBAS Any satellite based augmentation system (SBAS) like the American system of WAAS should NOT be selected as Choice 2 if External Source is set as Choice 1. This may cause some post processing issues later.

5. Real-time Age Limit: set to 1min

6. Press wrench symbol next to Choice 1: External Source to configure External Source 7. Set Correction Datum: to match the datum of the CORS Network Adjustment. • Seiler MWRTK port NAD83 (conus) CORS96 • WISCORS set to NAD 1983 (conus) CORS96 8. Set Type: VRS • VRS for a network Solution • Single Base to connect to a specific CORS station Note: MWRTK does, for some stations, have single base data streams but WISCORS does not have any base solutions available at this time. (8/2008) 9. Connection Method: Internet 10.

Address: • For MWRTK the primary IP is: 64.123.250.18 • For WISCORS the primary IP is: 130.47.34.42 • For WISCORS the backup server IP is: 130.47.34.45 11. Port: 2101 12. Press wrench symbol next to Source: to get list of mount points from CORS Network GPS Server. • If IP and Port were entered correctly, CORS Network Provider Server mount points will appear

Entire CORS Network Server source list tries to fit on the page but cannot usually be read, point and hold stylus on the vertical bar between the S… and the Na… to grab it, then slide the stylus to the right to expand the column or double click on the line between the S… and the Na… to best fit. User may also screen tap on Server column header to sort alphabetically. Seiler’s MWRTK has many mount points for network access as well as individual stations CMRPlus and RTCM2.3 Network as well as Single Base station CMRPlus.

WISCORS currently offers two for the network Seiler’s MWRTK VRS and Single Base Mount points WISCORS Mount points 13.

Screen tap on desired Server mount point and press OK • Seiler MWRTK for carrier data (sub-foot) select MWRTK_VRS_CMRPlus • Seiler MWRTK for carrier (sub-foot) or code (sub-meter) select MWRTK_VRS_RTCM23 • WISCORS for carrier (sub-foot) users Select WISCORS_CMRplus • WISCORS for carrier (sub-foot) or code users select WISCORS_RTCM23

OVERVIEW: Differential GPS (DGPS) correction signals are available in a two basic formats: RTCM and CMR • RTCM RTCM correction messages are the initial letters of the Radio Technical Commission for Maritime Services. This is a commission established to define a differential data link for the real-time differential correction of roving GPS receivers. All Trimble GPS receivers use version 2.1 or later RTCM protocol. RTCM may be a blend of signals or it may be one or the other of the carrier type corrections know as RTK (Real time kinematic) and code type correction signals know as basic DGPS.

MWRTK and WISCORS output all RTK type correction signals.

An example of RTCM DGPS only would be corrections coming from a Beacon or SBAS/WAAS. These sources, while RTCM, do not contain carrier (RTK) corrections and would therefore no provide real-time HStar accuracy. • CMR Compact Measurement Record is a real-time message format developed by Trimble for broadcasting corrections to other Trimble receivers. CMR is a more efficient alternative to RTCM correction messages, but is not supported by all non-Trimble receivers. All flavors of CMR signals are the RTK type message. CMRplus or CMR+ is just another type of CMR. There are no major differences between RTK styles RTCM and CMR messages.

All flavors of RTK corrections will provide decimeter accuracy.

Type in the unique CORS GPS Network User name: this is secure User name provided to you by the CORS GPS Network Provider. Note; this is NOT the same as the mobile phone user name. 14. Type in the Password provided by CORS GPS Network Provider !!CRITICAL NOTE: the User name and Password are CASE SENSITIVE- make sure to type them in exactly as provided to you. Usually lower case letters, Check this before typing in the password as you cannot read the password after it is entered- it appears as *** to keep is secret. 15. Connection Control: • Set to Auto if you want TerraSync to attempt to connect immediately upon running.

• Set to Manual if you want time to get phone ready before TerraSync attempts the modem connection.

16. Real time Protocol: cannot be changed, it is set by the Source correction stream selected in Source field. 17. Press OK to accept settings and return to main Setup Screen 18. If Connection Control in the Setup was Manual, user must press the Ext Source button to activate the VRS data stream. NOTE: TerraSync on the Mobile Device must have sufficient Satellites before VRS connection will appear connected Solid Icon Applying real-time corrections from VRS Flashing Icon Waiting for real-time corrections Possible reasons for flashing icon: GPS receiver not locked on sufficient satellites or high PDOP, user has no mobile phone connection, user’s mobile phone has no digital data service in this area, no Bluetooth connection, Bluetooth OFF on Phone or mobile device, VRS server is not operational.

Check Status of Real Time Correction signal in TerraSync 1. In TerraSync, Select Status Screen then select sub-menu Real- time 2. Select Status Real-time Summary will either read In use or Waiting. In Use Receiver is applying real-time corrections from VRS- all is well! Waiting Possible reasons for flashing: GPS receiver not locked on sufficient satellites or high PDOP, user has no mobile phone connection, user’s mobile phone has no digital data service in this area, no Bluetooth connection. Bluetooth OFF on Phone or mobile device, VRS server is not operational. 3. Select Status Real-time External will either read In use or Waiting.

In use will show current connection status in more detail as shown in image on the left. Waiting- something is not working….

Check Real Time and Postprocessed Accuracies in TerraSync 1. Select Setup Logging Settings 2. User selects the Accuracy Setting to be shown at the top of the screen above the double arrow: • Horizontal in the field • Vertical in the field • Horizontal postprocessed • Vertical postprocessed 3. User also sets the Postprocessing Base Distance and if Accuracy based Logging is desired. NOTE: Accuracy based logging is new to TerraSync 3.21 It allows the user to be confident of achieving required accuracy: TerraSync will not log a position unless the required accuracy has been achieved Either Horizontal or Vertical accuracy can be defined Either real-time or post-processed accuracy can be defined User preference is shown on the screen at all times above the Estimated accuracy double arrow on top status bar.

A screen tap on the Estimated accuracy double arrow will show a tooltip pop up for all four estimated accuracies at any time.

End of Session- Exit TerraSync and Close Real-Time Connection 1. Exit TerraSync as usual 2. Screen tap on Connectivity Icon on the top bar 3. Screen tap Disconnect to end the Bluetooth Modem connection to the phone. If you are not going to use the real-time connection all of the time, turn off Bluetooth to save Mobile Device power consumption. On the mobile device select Start Settings Connections Tab Bluetooth. Screen tap on the Mode Tab at the bottom and turn OFF Bluetooth.

Run ArcPad with GPS Correct on your Mobile Device From “Today” Screen select Start Programs ArcPad 7.1.1 or if it is in the start list select from main Start area Configure GPS Correct for Real Time Corrections from a CORS GPS Network Server 1. In ArcPad, run GPS Correct extension 2. Change from SKYPLOT screen to the SETUP screen Screen tap on Real-time 4. Set Choice 1: to External Source 5. Set Choice 2: select use or wait- do not select SBAS.

• Wait for real-time Set this if real time results are required and not post process. • Use Uncorrected GPS Set this for a mix of real-time and uncorrected data.

Data may have to be post processed. • Integrated SBAS Any satellite based augmentation system (SBAS) like the American system of WAAS should NOT be selected as Choice 2 if External Source is set as Choice 1. This may cause some post processing issues later. 6. Real-time Age Limit: set to 1mi 7. Press wrench symbol next to Choice 1: External Source to configure External Source 8. Set Type: VRS • VRS for a network Solution • Single Base to connect to a specific CORS station Note: MWRTK does, for some stations, have single base data streams but WISCORS does not have any base solutions available at this time.

(8/2008) 9. Connection Method: Internet 10. Address: • For MWRTK the primary IP is: 64.123.250.18 • For WISCORS the primary IP is: 130.47.34.42 • For WISCORS the backup server IP is: 130.47.34.45 11. Port: 2101 12. Press wrench symbol next to Source: to get list of mount points from CORS Network GPS Server. • If IP and Port were entered correctly, CORS Network Provider Server mount points will appear

Entire CORS Network Server source list tries to fit on the page but cannot usually be read, point and hold stylus on the vertical bar between the S… and the Na… to grab it, then slide the stylus to the right to expand the column or double click on the line between the S… and the Na… to best fit. User may also screen tap on Server column header to sort alphabetically. Seiler’s MWRTK has many mount points for network access as well as individual stations CMRPlus and RTCM2.3 Network as well as Single Base station CMRPlus.

WISCORS currently offers two for the network Seiler’s MWRTK VRS and Single Base Mount points WISCORS Mount points 13.

Screen tap on desired Server mount point and press OK • Seiler MWRTK for carrier data (sub-foot) select MWRTK_VRS_CMRPlus • Seiler MWRTK for carrier (sub-foot) or code (sub-meter) select MWRTK_VRS_RTCM23 • WISCORS for carrier (sub-foot) users Select WISCORS_CMRplus • WISCORS for carrier (sub-foot) or code users select WISCORS_RTCM23

OVERVIEW: Differential GPS (DGPS) correction signals are available in a two basic formats: RTCM and CMR • RTCM RTCM correction messages are the initial letters of the Radio Technical Commission for Maritime Services. This is a commission established to define a differential data link for the real-time differential correction of roving GPS receivers. All Trimble GPS receivers use version 2.1 or later RTCM protocol. RTCM may be a blend of signals or it may be one or the other of the carrier type corrections know as RTK (Real time kinematic) and code type correction signals know as basic DGPS.

MWRTK and WISCORS output all RTK type correction signals.

An example of RTCM DGPS only would be corrections coming from a Beacon or SBAS/WAAS. These sources, while RTCM, do not contain carrier (RTK) corrections and would therefore no provide real-time HStar accuracy. • CMR Compact Measurement Record is a real-time message format developed by Trimble for broadcasting corrections to other Trimble receivers. CMR is a more efficient alternative to RTCM correction messages, but is not supported by all non-Trimble receivers. All flavors of CMR signals are the RTK type message. CMRplus or CMR+ is just another type of CMR. There are no major differences between RTK styles RTCM and CMR messages.

All flavors of RTK corrections will provide decimeter accuracy.

Type in the unique CORS GPS Network User name: this is secure User name provided to you by the CORS GPS Network Provider. Note; this is NOT the same as the mobile phone user name. 14. Type in the Password provided by CORS GPS Network Provider !!CRITICAL NOTE: the User name and Password are CASE SENSITIVE- make sure to type them in exactly as provided to you. Usually lower case letters, Check this before typing in the password as you cannot read the password after it is entered- it appears as *** to keep is secret. 15. Connection Control: • Set to Auto if you want GPS Correct to attempt to connect immediately upon running.

• Set to Manual if you want time to get phone ready before GPS Correct attempts the modem connection.

16. Real time Protocol: cannot be changed, it is set by the Source correction stream selected in Source field. 17. Press OK to accept settings and press OK to return to main Setup Screen 18. If Connection Control in the Setup was Manual, user must press the Ext Source button to activate the VRS data stream. NOTE: GPS must be activated in ArcPad and GPS Correct on the Mobile Device must have sufficient Satellites before VRS connection will appear connected Solid Icon Applying real-time corrections from VRS Flashing Icon Waiting for real-time corrections .Possible reasons for flashing icon: GPS receiver not locked on sufficient satellites or high PDOP, user has no mobile phone connection, user’s mobile phone has no digital data service in this area, no Bluetooth connection, Bluetooth OFF on Phone or mobile device, VRS server is not operational.