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fDesc[0] = "VisualGPS 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).<br /> <br /> Main Features:<br /> <br /> - Azimuth and Elevation Graph - View all satellites that are in view. Each satellite identifies its pseudo random number (PRN) and its azimuth and elevation. Also plot and print the physical mask angle.<br /> - Survey - The survey window displays both position and xDOP (HDOP and VDOP) parameters. The ability for user selectable HDOP/VDOP color thresholds for position averaging make a great utility. Also monitor Standard Deviation and effects of Selective Availability. That&#039;s not all - print the results graphically. (Click here for example print output) (in PDF format - 157K)<br /> - Signal Quality/SNR Window - Monitor satellite signal to noise ratios and see them graphically on the screen. The signal quality window will grow or shrink to accommodate number of satellites in view<br /> - Navigation - Monitor latitude, longitude and altitude<br /> - NMEA Command Monitor - View NMEA sentences as they are received<br /> <br /> <br /> Requirements:<br /> <br /> - 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<br /> - Windows 2000 sp4, Windows XP, Vista or Windows 7<br /> - 486 100MHz or higher microprocessor<br /> - SVGA at least 1024X768 resolution<br /> - 16 megabytes of RAM<br /> - 6 megabytes of disk space<br /> - One available RS-232 port (or captured NMEA text file - included)";

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