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 seconds when a fix is found to conserve power.The module has a standard ceramic patch antenna, but if you want a bigger antenna, you can snap on any 3V active GPS antenna via the uFL connector. The module will automatically detect the active antenna and switch over!
Item Specifics Patch Antenna Size: 15mm x 15mm x 4mm Position Accuracy: about 3 meters Velocity Accuracy: 0.1 meters/s Warm/cold start: 34 seconds Acquisition sensitivity: -145 dBm Tracking sensitivity: -165 dBm Maximum Velocity: 515m/s Operating current: 25mA tracking Output: NMEA 0183, 9600 baud default, 3V logic level out, 5V-safe input DGPS/WAAS/EGNOS supported FCC E911 compliance and AGPS support (Offline mode : EPO valid up to 14 days ) Up to 210 PRN channels Jammer detection and reduction Multi-path detection and compensation A piece of header for soldering CR1220 coin cell holder(battery not included)