If you like our software, please donate! Suggested donation: $5USD

VisualGPSView (Freeware) incorporates many advanced features that show the status of the GPS receiver via the NMEA 0183 protocol. Its sole purpose is to display graphically specific NMEA 0183 sentences for GPS and position analysis.

Features:

Screen Shots

Download Free for 30 days.

(Version: ) Release Notes

BETA Version 2.0 Available - Click for more information.

*** Please uninstall any old versions before installing new version ***

The price for NMEATime2 is $20.48USD If you purchase NMEATime2, we will send you a registration key via email within 48 hours.

NMEATime2 is PC time synchronization software that synchronizes the PC clock to the time from a GPS receiver.

NMEATime2 is set up as a system service where the PC clock is disciplined to the NMEA string from the GPS. The control loop uses the same techniques in disciplining OCXO oscillators and atomic Rubidium clocks. By charactering the arrival of NMEA messages, NMEATime2 uses advanced digital filters to minimize communication jitter and achieve the best reference to train the PC clock to.

Because of this, there are some requirements that need to be met. Specifically, the rate output of NMEA message GPGGA and GPRMC.

It’s getting more difficult to find a PC with a native RS-232 serial communication port, most GPS receivers that interface to a PC use a USB. The majority of the USB GPS receivers will look to the PC as if it is a serial port. However, the modern USB GPS looks to the PC as a USB to Serial driver that emulates the serial port. In the USB world, it’s referred as a CDC (communication device class) device.

NMEATime2 will use the NMEA string (GPGGA) transmitted from the GPS, time tag the first character of the that command and use this as a timing reference. As you would expect, there are delays between the 1PPS epoch and the RS-232 causing software jitter. The delay can be calibrated out. NMEATime2 will use digital filtering (the red line you see in the Time Difference Plot - see below) and discipline the PC clock to this reference.

Requirements

• Supports Windows 7, 8, 8.1 and Windows 10

The minimum NMEA sentence requirements matter. The most important is that the GPGGA and GPRMC message output once per second.

• GPGGA - must be once/second
• GPRMC - must be once/second
• GPZDA - must be once/second (NMEATime will use this sentence for time. If not available, then NMEATIme will use GGA & RMC for time.)
• GPGSA - every two seconds
• GPGSV - every two seconds

Screen Shots

If you like VisualGPS and would like to support more products like these, please donate. Suggest donation $5 USD

Currently VisualGPS is over 10 years old! NMEA support is only limited to GPS NMEA strings (Not GLONASS or Galileo). We recommend that you download VisualGPSView.

VisualGPS (Freeware) incorporates many advanced features found in professional programs. Its sole purpose is to display graphically specific NMEA 0183 sentences and show the effects of selective availability (SA).

Features:

Requirements:

• GPS Receiver connected to a RS-232 port with NMEA 0183 output - NMEA demo file included for those who do not have a GPS receiver
• Windows 2000 sp4, Windows XP, Vista or Windows 7
• 486 100MHz or higher microprocessor
• SVGA at least 1024X768 resolution
• 16 megabytes of RAM
• 6 megabytes of disk space
• One available RS-232 port (or captured NMEA text file - included)
• VisualGPS decodes the following NMEA 0183 sentences:
  • GPGGA
  • GPGSA
  • GPGSV

Download

Download a free copy of VisualGPS program. It is a 32 bit program written for both the Windows 2000, XP and Vista environments. This software is freeware and cost is free.

As of January 1st 2018, NMEATime (Legacy) will no longer be supported. Please use NMEATime2 as an alternative.

Purchase NMEATime v5.8.100 - To purchase this product please contact VisualGPS LLC.

Currently NMEATime is over 10 years old! It only supports GPS NMEA string (Not GLONASS or Galileo). We recommend that you download NMEATime2

NMEATime will automatically set your PC clock using a GPS receiver connected to the serial port of a PC or to  the National Institute of Standards and Technology (NIST) time servers over the Internet. Using network time or the time from a GPS receiver, NMEATime will keep your computer referenced to an atomic time standard.

Also included with NMEATime is a NASA type desktop clock configurable to show day of year, 24 hour time or local time, color and size.

Features

• Digital desktop time code clock - like NASA has!
• Analog desktop clock
• Uses GPS Time to set your PC clock
• NMEA 0183 v2.20 - 3.01 compatible
• Software generated IRIG-B Output (requires sound card)
• Two Network time Protocols - Daytime NIST ACTS compatible and SNTP compatible
• Programmable time setting rate
• Selectable GPS NMEA message for time reference
• Random time server select mode from an editable server list
• Accepts 1 Pulse Per Second (1PPS) input in to  RS-232 DSR or CTS port
• BONUS SCREEN SAVER! (ClockMaze)
• Transparent Clock! See what is behind the clock (XP and Win2000 only).

Requirements

• For GPS time: GPS Receiver connected to a RS-232 port with NMEA 0183 output
• For network time: Access to the internet
• Windows 95/98, Win2000/XP, WinNT4.0 or higher with Internet Explorer 4.0 or higher
• Pentium 166MHz or higher microprocessor
• SVGA at least 800X600 resolution
• 16 megabytes of RAM
• 2 megabytes of disk space
• One available RS-232 port (for GPS time)
• Sound board for IRIG output

NMEA (GPS)

• NMEATime decodes the following NMEA 0183 sentences:
  • GPGGA or GPRMC or GPZDA
  • GPGSA
  • GPGSV
• Compatible with NMEA 0183 version 2.01 - 3.01

As of January 1st 2019, VisualGPSXP (Legacy) will no longer be supported.

Purchase VisualGPSXP for $9.95 USD

Welcome to the VisualGPSXP multipurpose GPS utility. Please note that VisualGPSXP uses specific NMEA sentences to display data graphically.

VisualGPSXP is a general purpose utility for monitoring the output of a GPS receiver. Using the NMEA data from the GPS receiver, VisualGPSXP will display various statuses graphically. Tools such as a survey utility average the position and shows accuracy of the GPS receiver in a static application. Other features such as analog gauges show altitude, speed, vertical speed and direction. One additional feature is the capability to connect and share a GPS receivers data over the Internet.

If you like our software, please donate! Suggested donation: $2USD

ClockMaze is a simple screen saver that creates a maze, solves it, and shows the current time. You can set up items such as solve color, maze color, and solve speed. It's free. Enjoy.

Screen Shots