Description and Operation
GISmore Configuration
Configuring Receiver
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5. Open
Positioning
tab and set the Elevation mask to 15 degrees (Figure 9).
Figure 9. Positioning tab - Elevation Mask
• To set up the rover, open
Positioning
tab and set the
Position Computation Mode
- this drop-down
list box allows selecting the mode of position computation:
• pd -carrier phase differential (RTK) with fixed ambiguities
• pf - carrier phase differential (RTK) with float ambiguities
• cd- code differential (DGPS) mode
• wd - wide area code differential mode (WDGPS)
• sp - single point positioning mode1
• Open the
Rover
tab and set up the following parameters:
• RTK Position Computation Mode – select Extrapolation for RTK float (kinematic), or Delay for
RTK fixed (static).
If Extrapolation is selected, the rover will extrapolate the base station's carrier phase
measurements when computing the rover's current RTK position. If Delay is selected, the rover
will not extrapolate the base station's carrier phase measurements to compute the current rover
position. Instead, the RTK engine will compute either a delayed RTK position (for the epoch to
which the newly received RTCM/CMR message corresponds) or the current stand-alone position
(while waiting for new RTCM/CMR messages coming from the base).
• Confidence Level for Ambiguity – list box governs the process of the RTK engine fixing integer
ambiguities. The RTK engine uses the ambiguity fix indicator when making a decision whether
to fix ambiguities or not. Low, Medium and High correspond to the indicator's 95%, 99.5% and
99.9% states, respectively. The higher the specified confidence level, the longer the integer
