Adafruit Ultimate GPS Breakout - 66 channel w/10 Hz updates

Key Features: -165 dBm sensitivity, 10 Hz updates, 66 channels, Built-in datalogging 5V friendly design and only 20mA current draw Breadboard friendly + 2 mounting holes Fully assembled and tested module The breakout is built around the MTK3339 chipset, a no-nonsense, high-quality GPS module that can track up to 22 satellites on 66 channels, has an excellent high-sensitivity receiver, and a built in antenna. It can do up to 10 location updates a second for high speed, high sensitivity logging or tracking. Power usage is incredibly low, only 20 mA during navigation. Best of all, we added all the extra goodies you could ever want: a ultra-low dropout 3.3V regulator so you can power it with 3.3-5VDC in, 5V level safe inputs, ENABLE pin so you can turn off the module using any microcontroller pin or switch, a footprint for optional CR1220 coin cell to keep the RTC running and a tiny bright red LED. The LED blinks at about 1Hz while it's searching for satellites and blinks once every 15 sec