The FMVC31020 from Fairview Microwave is a Voltage Controlled Oscillator with Frequency 1.07 to 1.21 GHz, Power -1 to 4 dBm, Tuning Sensitivity 37 MHz/V, Tuning Voltage 0.5 to 4.5 V, Pulling 1 MHz. Tags: Module with Connectors. More details for FMVC31020 can be seen below.