Topcon HiPer V, Руководство оператора

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T
roubleshooting
Receiver Problems
63 P/N: 1001608 ‐ 01
– Check the elevation masks of the Rover and Base receivers; they should be the same. To do this, on the TRU
main window, choose Receiver Settings

Tracking

Obs .
– Verify there is a clear view of the sky to allow sufficient satellite tracking.
•
A discrepancy exists between the differential standards used at the Base and Rover receivers.
– Ensure the Base and Rover receivers use the same corrections input/output format:
a. Connect the receiver to a computer and open TRU (see “Connection” in the Topcon Receiver Utility ( TRU)
Reference Manual ).
b. In TRU, connect to the receiver.
c. On the TRU main window, choose Receiver Settings

Ports .
d. Double ‐ click on the port to be configured and make sure the input mode of the Rover matches the format
of the Base output mode (i.e. RTCM3).
•
Poor satellite geometry (PDOP/GDOP values are too high).
– Ensure the elevation mask is less than 15 degrees.
– Increase the PDOP threshold. To do this, on the TRU main window, choose Receiver Settings

Tracking

Obs .
– Conduct the survey during a time period when satellite visibility and geometry is better (if possible).
•
The modem battery is low.
•
The specified baud rate is incompatible with the baud rates the modem supports. The baud rate is the rate at which the
receiver transmits differential messages to the modem and vice versa.
– Change the modem’s baud rate.
•
The Base and Rover modems use different radio link parameters.
– Configure the Base and Rover radio modems according to the procedures listed in the TRU Reference Manual .
•
The distance between the Base and Rover is too far.
– Close the distance between the Base and Rover.