The VCO7252BK-4000MHz-6000MHz-A from Dynamic Engineers is a Voltage Controlled Oscillator with Frequency 4000 to 6000 MHz, Power 0 to 10 dBm, Tuning Voltage 1.5 to 10 V, Phase Noise -102 dBc/Hz, Phase Noise dBc/Hz @100kHz -102 dBc/Hz. Tags: Surface Mount. More details for VCO7252BK-4000MHz-6000MHz-A can be seen below.