Description and Operation
Setup and Survey
Receiver Setup
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As usually, this information is given by NTRIP service provider.
• NMEA - this box allows using appropriate parameter to receive/no receive the GGA messages for
NTRIP caster:
• -1 – receiver will not send NMEA GGA messages to NTRIP caster.
• 0 – receiver will send NMEA GGA message to NTRIP caster only once after connection to the
caster is established.
• [1…86400] – receiver will send NMEA GGA messages to the NTRIP caster periodically, every
specified number of seconds.
Mountpoint drop-down list box allows to select the necessary mount point from the list. This drop-down
list box specifies the mount point of the NTRIP caster to get data from. The detailed information about
each mount point it is possible to obtain and view clicking the Source Table button.
The description of these parameters exceeds the scope of this document, see ModemVU Software
Manual, available from http:///www.javad.com for detailed information.
6. Setup and Survey
GPS receiver is a cost-effective L1 GPS survey instrument for productive control, topographic and GIS
surveys. After configuring the receivers for surveying, each receiver needs to be setup up and the
receiver’s height measured and the survey can begin.
6.1. Receiver Setup
A typical GPS survey system consists of a Base station set up over a known point and a Rover receiver set
up to be a mobile data collector.
Note:
The Base station must be set up, logging data, and transmitting data before setting up the Rover receiver.
Receiver setup for either post-process or RTK surveys is the same.
GISmore is suitable for GIS applications which do not require precise antenna installation even for RTK
DGPS mode. The main goal of RTK solution in GISmore is to make job of GIS operator much more
reliable and effective by providing to him RTK quality of positioning for applications where before it was
impossible.
