The GPS-3500 from Microchip Technology is a GPS/GNSS Disciplined Oscillator with Frequency 10 MHz, Operating Temperature -20 to 70 Degree C, Phase Noise -167 to -114 dBc/Hz, Senstivity -167 to -148 dBm, Storage Temperature -55 to 100 Degree C. Tags: Module with Connector. More details for GPS-3500 can be seen below.