The VCO-1540 from RF Bay is a Voltage Controlled Oscillator with Frequency 1.435 to 1.65 GHz, Power 7.943 mW, Tuning Sensitivity 80 MHz/V, Tuning Voltage 0.5 to 5 V, Pulling 35 MHz. Tags: Module with Connectors. More details for VCO-1540 can be seen below.