GSM Active Antenna with 3 meter wire and SMA male type connector is an excellent way to maximize the potential of any GPS Module in not only normal conditions but also in tough terrain and environment as it is water resistant and has got magnetic base (making it easily mountable in various case including automobiles). Its Central Frequency is 1575.42 MHz +/- 2MHz with gain of 27dB +/0 1dB. It works on input voltage of 3V to 5V.