The RQRA-1900-2500 from Raltron is a Voltage Controlled Oscillator with Frequency 1900 to 2500 MHz, Power 0.50 to 1.99 mW, Tuning Sensitivity 45 MHz/V, Tuning Voltage 0 to 15 V, Pulling 2 to 4 MHz/p-p. Tags: Surface Mount. More details for RQRA-1900-2500 can be seen below.