CONNECTIVITY

Trimble Pathfinder Pro XL / XR

The information supplied in the configuration details below is based upon BMGS field tests and does not represent the views of the manufacturer or its representatives. This information is provided solely for the purpose of assisting CDGPS users. Please consult your GPS receiver User's Manual and/or Dealer for more complete instructions on using the features of your GPS receiver.

Configuration Tested: Trimble Pathfinder Pro XL
Power: 2 external camcorder batteries.
Firmware: ver. 3.08.
Data Logger: Corvallis Microtechnology MC-V
Power: Internal Ni-Cd power supply.
Firmware: 3.02.
Data Input/Output Port: Supplied cable.
Supplied RTCM Cable: RTCM cable with a DB9M connector.
Cable & Connectors Used in BMGS Testing: Requires a DB9F to DB9F gender changer (available through electronic supply dealers) to connect to CDGPS.
Antenna:
  • Trimble's external dome GPS antenna.

  • In one test configuration the GPS antenna mounted on a supplied 2' Trimble range-pole was located in the small Trimble soft-backpack for which there is a supplied antenna loop. The CDGPS receiver was placed inside the backpack and the DGPS antenna was mounted on the BMGS range pole (manufactured from PVC pipe) which was then placed inside a backpack pouch (a second loop was not available) and affixed to the backpack.

  • In most testing though, Trimble's rigid framepack with additional mounting loops for the DGPS antenna was used. This is a better backpack for DGPS work as it is sturdier, there are proper antenna mounts for both antennae and, as such, antennae maintain their verticality better.
RTCM Reception Indication:
  • Indication of incoming RTCM data stream is noted on the MC-V Asset Surveyor's GPS Status Line at the bottom of the screen. When RTCMPageFor information on CDGPS connectivity issues please call (250) 356-7091 or send an e-mail to Vern Vogt, P.Eng corrected positions are being collected by the Pro XL receiver, the Asset Surveyor will indicate this fact by displaying an "R" on the GPS status line, in place of the "#" character. Data Collection is indicated by a spinning indicator graphic on the screen.
  • IMPORTANT NOTE: During dynamic data logging, the indicator on the GPS Status Line for the number of fixes collected overwrites the "R" indicator, thus requiring that the user check the GPS Status Screen.
Post Mission Data Access:
    Data analysis and viewing done via PFINDER ver. 3.00 software.
  • Data that has been corrected in real-time by RTCM data is tagged with an "R" or corrected flag. This correction flag is distinguishable from Uncorrected and Post-Mission corrected data which are flagged as follows:
    __U = Uncorrected;
    R__C = Real-Time Corrected; and
    __C = Post Mission Corrected.

  • Data can be filtered as such (using these flags).

  • Individual positions for Generic point features are accessible and viewable.
General Notes:
  • Refer to Pro XL System Manual and the Asset Surveyor Datalogging Manual which clearly detail connectivity and software setting issues with respect to Real-Time DGPS.
  • If you have the serial number of your GeoExplorer handy, link to the Trimble tTIP (Technical Information Page) for answers to common questions about Trimble products.

Pro XL Settings:

Set RTCM Options via Set Up Menus: Port Parameters
RTCM Mode: On/Auto Baud Rate: 9600
RTCM Version: Auto Data Bits: 8
RTCM Station: Any Stop Bits: 1
Warning Time: Choose 5/10/20/50/100 seconds. (10 seconds typically used) Parity: none


For information on CDGPS connectivity issues please call (250) 356-7091 or send an e-mail to Vern Vogt, P.Eng