Monitoring the data link – Spectra Precision ProMark 800 Reference Manual User Manual
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RTK Implementation
Activating a Data Link in Direct IP Mode
In this mode, you will have to:
• Enter the two identification parameters of the RTK
correction data provider, i.e. IP address (xxx.xxx.xxx.xxx) 
or host name (a URL name), and port number.
• Wait until the data link is active and RTK correction data
is received.
NOTE: Introduced late 2008, the RTDS PC software allows 
rovers to communicate with a user-owned base, also through 
the Direct IP mode. The software serves as a relaying device 
between the base and the different rovers used in the field. 
This is an attractive solution for users who want to work in 
standalone mode. In this respect, this solution resembles that 
of the radio link, but without its radio coverage limitation as 
long as there is a cellular coverage in the working area.
Monitoring the
Data Link
Making sure the data link is operational at all times is 
essential to successful field operations. A good indicator to 
monitor the data link is the age of corrections. This parameter 
is clearly highlighted on the display screens of all Spectra 
Precision receivers or field terminals.
When the data link operates normally, the age of corrections 
is continuously equal to the transfer rate set at the base for 
transmitting RTK correction data. If for any reason, a 
correction data set is not received or the rover fails to decode 
and use it, then the age of corrections will start increasing.
Base
Rover
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