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Maximum Age (of Corrections): If the GPS mode is set to Auto or On, the
GPSCard will only apply the corrections if the received RTCM data is less than
the specified Max. Age (entered in seconds).
Code: This allows you to define which DGPS reference station will be used, as
defined by its Code. If you don't know the code of the station being received,
select All, in which case the GPSCard will use any received RTCM data.
RTCM Source: Use the dropdown list to select which RTCM receiving device will
be used to provide the GPSCard with differential corrections. This RTCM
receiver must be interfaced to WinFrog before it will be listed. The RTCM data is
received via a serial connection, and is passed to the GPSCard via the ISA bus.
WINFROG VEHICLE > CONFIGURE VEHICLE DEVICES > DEVICE DATA ITEM >
EDIT:
Adding a NovAtel CONSOLE device to WinFrog provides you with three separate data
items: Position, Pseudorange and Ephemeris. The GPS, CONSOLE, POSITION data
item refers to the position data calculated and output by the GPSCard. The GPS,
CONSOLE, PSEUDORANGE and GPS, CONSOLE, EPHEMERIS data items provide
WinFrog with only raw measurement data. WinFrog's GPS Calculations extension
module is required to combine these measurements to calculate a position.
WinFrog can use either or both position solutions. Adding the Position data item is
simpler but provides the vehicle with only a single GPS or DGPS position. Using the
Pseudorange/Ephemeris option provides the ability to set up a multiple reference
solution - you can add DGPS correction data from up to 5 different RTCM stations,
which are then combined resulting in 1 weighted mean solution.
No matter which positioning method is selected, you must edit the device to suit the
application, as detailed below. (Note that the Ephemeris data item requires no editing).
GPS, CONSOLE, POSITION
In the appropriate vehicle's Configure Vehicle - Devices dialog box, highlight the
POSITION data item and click the Edit button. The Configure Position dialog box
appears as seen below:
WinFrog User's Guide - Appendix C – GPS/NovAtel Con
Page 5 of 22
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