Topcon HiPer SR, Operator'S Manual, Page: 74 / 103

T
roubleshooting
Receiver Problems
60 P/N: 1000737 ‐ 01
The receiver does not lock on to satellites for a long period of time
•
The corresponding receiver options may be disabled or expired (L1/L2, GPS/GLONASS must be on to track satellites).
– Order a new OAF with the desired options activated to enable or extend validity of the corresponding receiver
options. Contact a dealer or visit the Topcon website for details.
– Refer to the “Receiver Managing” chapter of the Topcon Receiver Utility ( TRU) Reference Manual for a detailed
description of options.
The receiver tracks too few satellites
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The survey is conducted near obstructions (tree canopy, tall buildings, and so forth).
– Make sure the Multipath Reduction boxes have been enabled.
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  Tracking  Adv tab. Make sure the C/A code
multipath reduction check box is selected.
•
Move to an area free of obstructions, if applicable.
The receiver cannot obtain Code Differential and/or RTK solutions
•
Incorrect Base coordinates entered.
– Specify the correct coordinates for the Base station using

TRU or another suitable field data collection software.
•
There could be some obstruction to the LongLINK connection.
– Clear all possible obstructions or relocate the Base so there is a “line ‐ of ‐ sight” path to the Rover.