Ublox makes good gps. The Ublox NEO-6M gps engine on this board is a quite good one, with high precision binary output. It has also high sensitivity for indoor applications. The gps module have a battery for power backup and EEprom for storing configuration settings.

The antenna is connected to module through ufl cable which allow for flexibility in mounting the gps such that the antenna will always see the sky for best performance. This make it powerful to use with cars and other mobile applications.

The Ublox gps module has serial TTL output, it has four pins:TX, RX, VCC and GND. You can download the u-center software for configuring the gps and changing the settings and much more. 

Features

Cold start time of 38 s and Hot start time of 1 s

Supply voltage: 3.3 V t

Configurable from 4800 Baud to 115200 Baud rates. (default 9600)

SuperSense ® Indoor GPS: -162 dBm tracking sensitivity

5Hz position update rate

Operating temperature range: -40 TO 85°C

UART TTL socket

EEprom to save configuration settings

Rechargeable battery for Backup

Separated 18X18mm GPS antenna

Dimension: 22X30X13 mm

Weight: 12g