Datasheet

Dimensions (not including coin cell or holder): 25.5mm x 35mm x 6.5mm / 1.0" x 1.35" x 0.25"

If you purchased a module before March 26th, 2012 and it says MTK3329 on the silkscreen, you have the PA6B

version of this breakout with the MT3329 chipset. The MTK3329 does not have built in datalogging. If your module has

sharpie marker crossking out the MTK3329 text or there is no text, you have a PA6C MTK3339 with datalogging ability.

If you have the version with "v3" next to the name, you have the PA6H which has PPS output and external-antenna

support

This tutorial assumes you have a '3339 type module.