Topcon GR-5, Operator'S Manual

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GR-5 Receiver Setup and Survey
GR-5 Operator’s Manual
4-14
• Code differential – where the Rover receiver computes the
current relative coordinate in differential mode using only pseudo
ranges.
• RTK float – where the Rover receiver computes the current
relative coordinates in differential mode using both pseudo
ranges and phases; however, with a float solution, the phase
ambiguity is not a fixed integer number and the “float” estimate is
used instead.
• RTK fixed – where the Rover receiver computes current relative
coordinates, with ambiguity fixing, in differential mode.
The
LQ
field reflects the status of the received differential messages
and contains the following information:
• Data link quality in percentage
• Time (in seconds) elapsed since the last received message
• Total number of received correct messages (dependent on the
message type received)
• Total number of received corrupt messages (dependent on the
message type received)
If the receiver is not (for some reason) receiving differential
corrections, or if none of the ports have been configured to receive
differential corrections, the LQ field is either be empty or looks like
this: 100% (999,0000,0000).
Figure 4-7. PC-CDU Main Screen