Differentially Corrected Setup; Unit Setup - Javad DELTAGNSS Receiver Operator's Manual

Differentially corrected setup

The unit receives differential corrections from the Remote base, see Fig. 6. The radio modem can
be connected to any of communication ports. The position of the antenna 'a' is calculated in
differentially corrected mode: RTK or DGPS depending on the setting of the operation mode. The
position of the antenna 'b' is calculated differentially corrected from the position of the antenna
'a'. In other words, the antenna 'b' is calculated as an RTK rover corrected from the 'moving
base' 'b'
Remote
base
Figure 3-13. Differentially corrected operation of the unit

Unit Setup

Let us suppose for example that the system should operate at 5 Hz. The 10 Hz, 20 Hz, and 50 Hz
cases are considered the same way.
1. Setting of the standalone setup. The following set of commands must be sent to the unit:
set,rover/mode/,off
set,base/mode/,off
set,pos/elm,10
set,raw/msint,200
set,pos/msint,200
set,pos/mode/cur,pd
set,pos/pd/period,1
set,pos/pd/mode,extrap
set,pos/pd/aflevel,medium
set,pos/pd/dyn,1
set,pos/pd/usebasedop,off
set,pos/pd/hd/mode,on
Next two settings can be used or not used
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North
'a' 'b'
Configuration
DELTAD Systems Configuration
How to Work with DELTAD-G2/G2D
41