If you want to tinker with GPS and you buy one of these:
then get one of these too:
. connect the TTL/USB converter to the GPS receiver module
. plug the converter into a USB port on your computer
and the GPS receiver's output can be immediately viewed on the Arduino IDE monitor:
$GPRMC,,V,,,,,,,,,,N53
$GPVTG,,,,,,,,,N30
$GPGGA,,,,,,0,00,99.99,,,,,,48
$GPGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.9930
$GPGSV,1,1,0079
$GPGLL,,,,,,V,N64
So easy, so informative. It's the place to start learning about GPS.