If we want to connect the GPS receiver to any RS232 serial port you need a converter. MAX3232 is an serial driver IC which can operate from 3V to 5V.
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If you made the connections clearly, you will get the data (most probably in NMEA protocol) to your PC. You can easily view then with Hyper terminal.
NMEA 0183 is an industry standard protocol common to marine applications. NMEA provides direct compatibility with other NMEAcapable devices such as chart plotters, radars, etc. The GPS receivers mostly support NMEA messages for GPS navigation. NMEA messages and output rates can be user selected as required.
The following information describes the most common NMEA-0183 sentences transmitted by GPS receivers. The NMEA standard provides quite a range of sentences, but many relate to non-GPS devices and some others are GPS related but rarely used. We normally recommend the use of NMEA mode for new GPS applications to give maximum compatibility with all GPS receivers. Most GPS receivers also have a binary mode but it is normally best to reserve the use of binary GPS protocols for applications that really require their use, such as those requiring position updates of greater than once per second. This protocol works on the baud rate of 4800.
Sentence Description
$GPGGA Global positioning system fixed data
$GPGLL Geographic position - latitude / longitude
$GPGSA GNSS DOP and active satellites
$GPGSV GNSS satellites in view
$GPRMC Recommended minimum specific GNSS data
$GPVTG Course over ground and ground speed
$GPGGA Sentence (Fix data)
Example
$GPGGA,235947.000,0000.0000,N,00000.0000,E,0,00,0.0,0.0,M,,,,0000*00 Example (signal acquired):
GPGGA,092204.999,4250.5589,S,14718.5084,E,1,04,24.4,19.7,M,,,,0000*1F
Field Example Comments
Sentence ID $GPGGA
UTC Time 092204.999 hhmmss.sss
Latitude 4250.5589 ddmm.mmmm
N/S Indicator S N = North, S = South
Longitude 14718.5084 dddmm.mmmm
E/W Indicator E E = East, W = West
Position Fix 1 0 = Invalid, 1 = Valid SPS, 2 = Valid DGPS, 3 = Valid PPS
Satellites Used 04 Satellites being used (0-12)
HDOP 24.4 Horizontal dilution of precision
Altitude 19.7 Altitude in meters according to WGS-84 ellipsoid
Altitude Units M M = Meters
Geoid Seperation Geoid separation in meters according to WGS-84 ellipsoid
Seperation Units M = Meters
DGPS Age Age of DGPS data in seconds
DGPS Station ID 0000
Checksum *1F
Terminator CR/LF