"Freeware
- GPS Diag. Software" |
GPS
Diag Software |
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Model |
Description |
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Info |
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GPS
Diag Software |
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Version
1.05 released 2nd December 2002
Introduction
GPSDiag is a free GPS program for 32-bit Microsoft Windows platforms
(Windows 95, 98, ME, NT & 2000) to monitor incoming NMEA GPS
messages from a serial port. It displays the interpreted data in
the top half of the window with raw data in the bottom half. Simply
click on the COM1-4 buttons to start logging and press stop to terminate.
The
following information is displayed on the main display:
UTC Time
Longitude
Latitude
Speed
Altitude
Course
Quality (Valid, Invalid)
Magnetic variation
Fix mode (2D, 3D)
UTC Date
Satellites used
PDOP, HDOP & VDOP (dilution of precision)
And
for each satellite in view (but not necessarily being used) the
following information is provided:
PRN
Elevation
Azimuth
SNR (signal to noise ratio)
Satellite used in fix
Click
here to download a ZIP file containing Setup.EXE (4.2MB)
You
may also like to check the GPS Glossary for further information
on some of the terms used. Details on the contents of the Common
NMEA GPS Sentences is also available, the meaning of which will
probably become clearer after you've starting using the software.
Several
people have asked if we can make source code available for this
program, unfortunately for various commercial reasons we will not
distribute the source code for this application. The software is
written using Borland Delphi 5 and incorporates several proprietary
software libraries, we recommend searching on the Internet for freeware
/ shareware GPS and communications libraries if you are interested
in writing a similar application yourself.
Freeware GPS Diagnostic Program
Changes
for V1.05
Added option to display timestamp's as PC local time.
Added pause/resume button when replaying data.
Added monitoring of 1PPS line when connected to DSR line.
Added option to send command on positive edge of 1PPS line.
Fixed problem that could cause 'unable to open com port' to keep
repeating.
Added Tools | Send command option to allow commands to be sent to
GPS receiver.
Allow baud rate to be specified under Tools | General options.
Added field formats menu item to allow NMEA data to be displayed
in different formats.
Changes for V1.04
Distribute as single EXE installation created with Install Shield.
Changes for V1.03
Added support for $PGRME sentences sent by some receivers with estimated
position error information.
Changes for V1.02
Display 2-D fix with yellow background, invalid fix with red background.
Misc fixes to work with wider range of NMEA GPS receivers.
Added support for GPS connected to COM1-COM8.
Changes for V1.01
Supports logging of data and replaying of data from a file.
Problem fixed interpreting NMEA data for locales where the default
decimal separator is not a full stop.
Command-line like 'GPSDiag L2 c:\temp\GPS_%DATE_%TIME.txt' can be
used to automatically log COM2 data to a file.
Command-line like 'GPSDiag R c:\temp\GPS_20010907_141002.txt' can
be used to automatically replay data from file.
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