Javad DELTAGNSS Receiver Operator's Manual page 34

Configuration
Configuring the Receiver
• Antenna position – enter Lat, Lon, and Alt values using one of the following methods:
– If known, type in the values.
– Enable Averaged and enter the Averaged Span in seconds, then click Apply. Click
Tools Reset receiver and wait until the specified interval (span) completes. Examine
the Base coordinates on the Base tab, they should correspond to the coordinates
obtained from the average. Click Refresh if the coordinates are zeros.
– Click Get from receiver.
8. For the Rover receiver, click the Rover tab and set the following parameters, then click
Apply (Figure 3-6 on page 35).
• Positioning Mode – For post-processed measuring, select Standalone; for RTK
Missourians, select RTK float or RTK fixed.
• RTK Parameters, RTK mode – select either Extrapolation for RTK float (kinematic) or
Delay for RTK fixed (static).
– Extrapolation is for low-latency, high frequency output (>= 5 Hz) RTK applications.
The Rover will extrapolate the Base station's carrier phase measurement corrections
when computing the Rover's current RTK position. This setting (extrapolation) is
recommended.
– Delay is for 1 Hz high precision RTK applications. The Rover RTK engine will
compute either a delayed RTK position (for the epoch to which the newly received
RTCM/CMR message corresponds) or the current standalone position (while waiting
for new RTCM/CMR messages coming from the base).
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Figure 3-5. Base Configuration
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