The RSO239AM from Roswin is a Voltage Controlled Oscillator with Frequency 200 to 239 MHz, Power 6.31 mW, Tuning Sensitivity 13 MHz/V, Tuning Voltage 0.5 to 4.5 Vdc, Phase Noise -122 dBc/Hz. Tags: Surface Mount. More details for RSO239AM can be seen below.