Configuring Trimble TSC2 for RTK over internet – establishing IP

Configuring Trimble TSC2 for RTK over internet – establishing IP
TECHNICAL TIPS from
INLAND GPS
Configuring Trimble TSC2 for RTK over internet – establishing IP connection
This Technical Tip provides instructions for establishing an internet-protocol (IP) connection from a Trimble
TSC2 data collector running the Windows Mobile 5 operating system via a Bluetooth-enabled mobile (cellular)
phone operating as a modem.
The typical purpose for this IP connection is obtaining RTK GPS reference-station data via a mobile phone, but
the connection can be used for other purposes such as web browsing, e-mail, and file transfer as well.
Two other Technical Tip documents in this series will cover creating the Survey Controller dial profiles and
survey styles to connect to and utilize different types of RTK-GPS-data sources. Links are provided later in this
document.
These instructions were prepared using a Verizon LG VX8300 phone, which has the Bluetooth dial-up
networking (DUN) profile enabled.
The steps to get everything working are 1. Establishing a Bluetooth partnership between the TSC2 and the mobile phone
On the TSC2, exit out of Survey Controller or other
application software to get to the Windows desktop.
Tap on Start, and then tap on Settings.
The Settings window will open, tap on the Connections tab.
Tap on the Bluetooth icon to get to the window shown in the
next row.
Under the Mode tab (which should open by default), check
both Turn on Bluetooth and Make this device
discoverable to other devices.
Tap on the Devices tab to get to the window in the next row.
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The window at right shows the TSC2’s existing Bluetooth
partnerships. We are going to add the mobile phone to this
list.
On the mobile phone, turn on Bluetooth and make sure the
device is discoverable. For security, on many Bluetooth
devices the discoverable status only lasts for a minute or so.
Tap on New Partnership and the TSC2 will begin scanning
for other Bluetooth devices within range.
During its scan the TSC2 found the mobile phone as shown
at right.
Highlight the desired device and tap the Next button at
bottom right.
You will likely encounter and Enter Passkey dialog as
shown at right.
It is believed that the most common default Bluetooth
passkey is 0000 (four zeros) so that is what was used in this
example. Other possible default passkeys are 1234, 9999,
and the last four digits of the telephone number.
Consult with your mobile-phone provider if you need help
with the passkey.
Tap the Next button at bottom right.
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Pay attention to your mobile phone at this time – you may
need to acknowledge and allow the pairing request from the
TSC2 and enter a passkey on the mobile phone.
Your mobile phone may also offer an option that asks each
time a Bluetooth connection with the TSC2 is established.
That provides an additional level of security, so you may
wish to use that option.
After the partnership with the mobile phone is established,
the mobile phone will show up in the device list as shown at
right.
Tap and hold on the name of the mobile-phone device until
the context menu appears, then tap Edit to bring up the
dialog shown in the next row.
In the Partnership Settings dialog, make sure Dialup
Networking is checked, the tap the Save button at bottom
right.
This completes the partnership, so tap the OK button at
upper right to get back to the Connections Settings window.
If Dialup Networking does not appear in the list of
available services, you should check with your mobilephone provider.
If it is confirmed that your mobile device does not provide
the Bluetooth Dialup Networking service, see the Wi-Fi
information toward the end of this document and the linked
document.
2. Establishing a modem connection to the internet
Under the Connections tab, tap the Connections icon.
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Tap on Add a new modem connection to open the dialog
shown in the next row.
For purposes of this document, the new connection was
named VZW, an abbreviation for Verizon Wireless. You
should use a name that makes sense for your situation.
Select Bluetooth for the Select a modem: field.
Tap the Next button at bottom right.
Now we will tell Windows Mobile which Bluetooth device
to use for the modem connection.
Highlight the Bluetooth device for which you created a
partnership under Step 1 and tap the Next button at bottom
right.
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Here is where the “dialup” part comes in – we now enter the
number to dial to reach the internet.
This document was prepared using a Verizon connection, so
we entered #777 in the number field.
Inland GPS has attempted to compile settings for some
mobile-phone carriers in the region, That information is
provided later in this document. For other mobile-phone
carriers you will have to consult with their technical
representatives to determine the correct entries for this and
the following settings.
Tap the Next button at bottom right.
Now for the authentication –
On Verizon, the User name is (ten-digit mobilephone number)@vzw3g.com and the Password is vzw.
(The Survey Controller Ver 12.46 Help document indicates
that the default settings under the Advanced button are all
correct.)
Tap the Finish button at bottom right and you will be back at
the Connections window shown in the next row.
The next order of business it to test the new connection.
Unplug any cables that may be connected to the TSC2 and
confirm that Wi-Fi is turned off.
Tap on Manage exiting connections to bring up a list of
available connections.
Our brand-new connection appears in the list.
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Tap and hold on the name of the new connection (VZW in
the example – yours may be different) until the context menu
appears.
Tap on Connect.
To see what is going on now, pay attention to the mobilephone screen as well as the information revealed by tapping
the Connectivity icon (appears just left of the loudspeaker
icon) at the top of the TSC2’s screen.
Immediately after tapping Connect the TSC2 should instruct
the mobile phone to begin dialing the specified number.
To confirm that is what is happening, tap the Connectivity
icon and you will see the information screen shown at right.
When the internet connection is established, the
Connectivity information will likely disappear.
Again tap the Connectivity icon and you will see the
information screen shown at right that shows the dial-up
connection as well as the elapsed time since the connection
was established.
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For an additional test of your new IP connection, launch the
TSC2’s Internet Explorer browser and navigate to a web site
of your choice. This provides additional confirmation that
the TSC2 has an internet connection via the mobile phone.
Tap the Connectivity icon and tap the Disconnect button to
close the connection when you are finished.
If you have not been successful in getting to this point, you may need to consult with your mobile-phone
provider. Most mobile-phone sales representatives have no knowledge of this type of connection, so one way to
get the dial-in information and other settings is by telling them that you are trying to tether a Linux computer via
your mobile phone.
What’s next?
Now you need to create a dial profile to access the source of RTK GPS reference-station data along with an
appropriate survey style that will utilize that data.
If you will be connecting to an internet-accessible GNSS receiver, refer to the Inland GPS Technical Tips
document titled Configuring TSC2/Survey Controller for RTK over internet – connecting to a GNSS receiver.
If you will be connecting to an NTRIP (Networked Transport of RTCM via Internet Protocol) caster, refer to the
Inland GPS Technical Tips document titled Configuring TSC2/Survey Controller for RTK over internet –
connecting to an NTRIP caster.
Dial-up networking settings for some mobile-phone carriers in the region
AT&T Please advise Inland GPS as to your results using these settings, especially if you find any
errors.
Dial String: *99***1#
Username: (Left blank because SIM card does the authentication)
Settings untested!!
Password: (Left blank because SIM card does the authentication)
Modem command: None required?
Modem PIN: (Leave blank?)
APN: proxy
Union Wireless The support person with whom I spoke was confident that Union Wireless does not offer
any devices that support Bluetooth Dialup Networking except possibly one Blackberry
device. The best way to check will be to create the Bluetooth partnership and see if the
Bluetooth Dialup Networking service shows up in the list. Let us know what you learn
and we will add that information to later revisions of this document.
Dial String: ??
Username: (Left blank because SIM card does the authentication)
Settings untested!!
Password: (Left blank because SIM card does the authentication)
Modem command: None required?
Modem PIN: (Leave blank?)
APN: union.wap.com ??
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Verizon These settings worked fine on a superannuated LG VX8300 phone during June 2011.
Dial String: #777
Username: (Your ten-digit mobile-phone number)@vzw3g.com
Password: vzw
Modem command: None required?
Modem PIN: (Leave blank?)
APN: None
Other considerations –
Using Wi-Fi instead of Bluetooth Dialup Networking
After speaking with several representatives of mobile-phone carriers it seems that Bluetooth Dialup Networking
may be disappearing from mobile devices and is being replaced by Wi-Fi capabilities. For most uses this makes
sense because Wi-Fi provides much higher data rates. For RTK-over-internet purposes we can get by just fine
with the slower Bluetooth connection, but we have to use what the market offers.
If you need (or prefer) to use Wi-Fi, the Inland GPS Technical Tips document titled Configuring TSC2/Survey
Controller for RTK over internet – using Wi-Fi shows the changes to make when using Wi-Fi. That document is
intended for use with this document and the other two documents in this series.
A Bluetooth connection between the TSC2 and the mobile phone is desirable for RTK over internet because
Bluetooth uses about one-sixth as much power as Wi-Fi. If you use Wi-Fi expect a significantly shorter runtime
from the TSC2’s battery.
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