Sprint Nextel 597E What is a GPS application?, What is NMEA?, How do I configure a GPS application to use my GPS-capable device?, When do I need to use NMEA?

Section 3E: Frequently Asked Questions (Windows) 99
What is a GPS application?
A GPS application is an application that uses NMEA data to get regular location
coordinate updates and values typically displayed in an application. (For more
information on NMEA, see “What is NMEA?” [below].)
Examples of GPS applications are Microsoft Streets & Trips, and Microsoft
MapPoint.
What is NMEA?
NMEA stands for “National Marine Electronics Association.”
NMEA 0183 is a standard protocol used by GPS devices to send and receive data.
NMEA output is composed of various strings. Sprint GPS data cards support the
following strings:
䢇$GPGGA
䢇$GPRMC
䢇$GPGSA
䢇$GPGSV
See also “When do I need to use NMEA?”, “How do I start and stop NMEA?”, and
“How do I configure my NMEA port?”, starting on page99.
How do I configure a GPS application to use my GPS-capable
device?
To configure a GPS application to use your GPS-capable device:
1. Start GPS NMEA (page 100).
2. Note the “GPS Port” value displayed in the expanded GPS Receiver window
(page 47).
3. Configure your GPS application to use the same port. For help, see the
documentation of the GPS application.
When do I need to use NMEA?
You need to use NMEA only when using a GPS application that uses an NMEA
output stream. For more information, see “What is a GPS application?” on page99
and “How do I start and stop NMEA?” on page 100.
Note: To ensure the best data performance of your card, it’s recommended that you not
activate the NMEA stream unless you are going to use it.