LBE-1420Low jitter GPS locked frequency clock source 1 Hz to 1. 1 GHz output This device outputs high purity signal with frequency locked to GPS. LBE 1420 is perfect for both accurate frequency calibration and RF reference use in mixers or multipliers. Frequency stability of its output is defined by the accuracy of GPS satellite onboard Caesium references and approaches 1x10 12 or 0. 000001 ppm. Output phase noise is shaped by high quality internal TCXO,