Leica GPS1200 SmartRover and Clip-On GFU25 CDMA Modem (.pdf)

Metro Vancouver Real-Time GPS Service
Support FAQ – Leica GPS1200 Survey System
Leica GPS1200 SmartRover and Clip-On GFU25 CDMA
Modem
The Leica GPS System 1200 SmartRover supports RTK
positioning, and can be used with the MV Real-Time GPS Service.
The GPS System 1200 Smart Rover can accept DGPS, RTCM 2.3
& 3.0, as well as CMR+ via the clip on GFU25 CDMA modem.
The Leica Smart Rover (using ATX1230 receiver and the RX1250
Controller) can be ordered with an optional Multitech Bell CDMA
modem module (GFU25).
The GFU25 CDMA modem can connect to the Internet
and receive GPS RTK corrections from MV Real-Time GPS Service.
What Equipment Do I Need To Connect My GPS Receiver to the MV Real-Time GPS Service?
You will need:
• Leica GFU25 CDMA modem
• The Leica Smart Rover using ATX1230 receiver and the RX1250 Controller
How Do I Configure the Leica GPS1200 SmartRover to Work
With the Leica GFU25 CDMA modem and the Ntrip ?
GPS1200 Setup:
Check Receiver firmware, must be v4.0 or higher - USER button/F3(STAT)/System
Information/F6(PAGE) for the current version
Connect GFU25 into the clip-on:
Setup the Internet connection first:
Configuration: Interfaces:
-Internet: Edit
-Internet: Yes
-Port: Clip-on
-F5: Device, select “Multitech Bell”, F1 (CONT)
-IP Address: “Dynamic”
-UserID & Password: Bell Phone Number with the “@rtk.1x.bell.ca” domain and the
password is the voicemail number with the number “1” at the end
-F1:(CONT)
-F1:(CONT) to main menu
FAQ – Leica GPS1200 Survey System Page 1
September 2008

Metro Vancouver Real-Time GPS Service
Support FAQ – Leica GPS1200 Survey System
Create a MV RTK GFU25 CDMA Configuration Set:
-Management/Configuration Sets/F2(NEW)
-Enter "Any Name" F1(STORE)
The following are the settings that are the critical components of the Configuration Set :
-F6(LIST): Real Time Mode: F3(EDIT)
-R-Time Mode: ROVER
-R-Time Data: RTCMv3 or RTCM 18,19 or CMR/CMR+
-Port: Net1
-Ref Sensor: Unknown
-Ref Antenna: AT504 Pillar (equivalent to Trimble Choke Ring, i.e. 0.110m L1 Phase
Center Offset, which are the RTK Base Antenna)
-F2(ROVER) Additional Rover Options – General Tab
-Accept Ref? ANY
-Ref Network? NONE
-Send User ID? NO
PAGE -Ntrip: Use NTRIP? YES
-User ID: Enter your MV RTK Server ID and Password supplied by Global Minds Inc
-F5(SRCE): Select appropriate base and data stream (i.e. Surrey Fire hall and CMR+ format, this
must be the same as the ‘R-Time Data’ format set in the real time mode above)
-F1:(CONT)
-F1:(CONT) to main menu
The unit is now ready for reception of the RTK Corrections. The unit will automatically connect
the Bell CDMA network and the RTK server if they are available. The Data communication
arrow on the GPS1200 display should be moving to reflect this. Check the USER/F3(STAT)/4
Interfaces.../F3(IFACE) for the details of the data being received including the time and
percentage of messages received, the device in use and the base coordinates.
If you wish to switch RTK bases you must return to the F5(SRCE) page in the Additional Rover
Options menu.
FAQ – Leica GPS1200 Survey System Page 2
September 2008