Oops, This is assuming you mean that you are connecting your gps to your PIC chip, and not your computer. If you are just connecting your gps to your computer, no need for a max232 chip.
I've used the max232 chip with gps before. If you are using a standard GPS to PC serial cord, you will need to either swap your wires 7 and 8 on the max232 chip, or insert a null modem adapter on your gps cable.
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