Downloading The Data - Thales Z-Max Operation And Application Manual

control keys until ANT HT is displayed. Press ENTER and input the
accurate antenna height from the mark to the GPS Antenna Module. This
parameter will stay constant for the duration of the survey.
3. Enter the Site ID.
The Site ID submenu is in the 3rd level of the SURVEY:RTK ROVER
menu. To access the 3rd level, display the LOGGING submenu and press
the ENTER key. Select MANUAL and press the ENTER key. Enter the
SITE submenu and input a 4-character ID that is unique to that site, for
example PT01.
4. Start data logging.
Data logging is initiated by the START function. Once the Site ID is
entered, use the UP/DOWN keys until START is displayed. Press ENTER
to start data logging.
5. Monitor site occupation.
There are three submenus to help you to monitor the data collection. Use
the TE (time elapsed) submenu to display how much time has elapsed
since the start of data logging. Use the HRMS and the VRMS submenus to
monitor the horizontal and vertical positional accuracy. Also, verify that the
RTK SOLUTION LED is blinking green.
6. Stop data logging.
When enough data has been collected at this point, use the UP/DOWN
keys until the STOP? function is displayed. Press the ENTER key and the
query "Stop data logging?" will appear on the display. Press ENTER to
confirm.
7. Move to next point.
Move to the next point to be surveyed and repeat steps 3-6.
Continue to occupy and monitor each point until all points in the survey have been
observed. You can now return to the office and download the data.
If during the survey, the RTK SOLUTION LED blinks RED, wait until the receiver re-
initializes and the LED blinks green again before occupying a point. If the LED does
not become green again, you will have to troubleshoot the system to determine the
problem. See Chapter 6 - Troubleshooting for more information about
troubleshooting your system.

Downloading the Data

Downloading data involves the transfer of data from the SD memory card to the PC for
subsequent processing. During the downloading process, the session file on the SD
memory card is decoded and converted into the epoch solution files (CBEN data),
vector solution files (OBEN files) and raw data files (B-file, E-files, and S-files). The
decoded files are stored in the desired directory of the PC.
Executing an RTK Survey 249