3. Ensure that the tribrach is over the marker.
4. Place and lock the carrier in the tribrach.
5. Insert the data storage device and the batteries into the
iC
ON gps 70.
6. Screw the iCON gps 70 onto the carrier.
7. Check that the tribrach is still levelled.
8. Insert the data storage device and the battery into the field control-
ler.
9. Switch on the field controller and connect it to the instrument if nec-
essary.
10. To hang the field controller on the tripod leg, use the hook on the
hand strap or use the utility hook. Refer to the User Manual of the
field controller.
11. Insert the height hook into the carrier.
12. Measure the antenna height using the height hook.
13. Press the ON/OFF button on the instrument for at least 2 s to switch
on the instrument.
4.1.2 Setting up as a Real-Time Base
The equipment setup described is used for real-time base stations with the
need o
f optimal radio coverage. Raw observation data can also be collected for
post-processing.
The iCON gps 70 instrument can be programmed with the field controller
b
efore use which can then be omitted from the setup.
The connection between iCON gps 70 and the field controller is made via Blue-
tooth.
The radio antenna (GAT27 or GAT28) is directly mounted downwards facing at
the antenna. Alternatively, the radio antenna can be mounted on the antenna
arm (CA41) which clips to the GNSS antenna.
•
T
he GNSS antenna is mounted directly using screw fitting. If using stub and
adapter, procedures can vary slightly.
•
When using the adapter and carrier, ensure that the antenna and the
adapter assembly slide down the full length of the carrier stub. An incor-
rectly mounted antenna will have a direct effect on the results.
•
Standard radio is used throughout the instructions. Digital cellular phones
can also be used but the setup can differ slightly.
Use an external battery such as GEB371 to ensure operation for a full day.
Use
Description
☞
☞
Operation 29
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