The RSO1427AM from Roswin is a Voltage Controlled Oscillator with Frequency 1369 to 1484 MHz, Power 5.012 mW, Tuning Sensitivity 40 MHz/V, Tuning Voltage 0.5 to 4.5 Vdc, Phase Noise -112 dBc/Hz. Tags: Surface Mount. More details for RSO1427AM can be seen below.