The Voltage Controlled Oscillator CRBV55FL-0136-0174 Red Box VCO operates from 136 to 174 MHz with a control voltage range of 0.5~4.5 V. It features a typical phase noise of -123 dBc/Hz @ 10 KHz offset and has excellent linearity. Output power is typically +9 dBm. It is enclosed in a robust aluminum enclosure (1.25" × 1.25" × 0.58") with SMA connectors, enhancing durability and making integration into any application an easy, plug-and-play option.