The RWPR2-2439 from Roswin is a Phase Locked Loop with Frequency 2438.5 MHz, Phase Noise -150 to -78 dBc/Hz, Output Power 2 dBm, Harmonic Suppression -20 dBc, Operating Temperature -40 to 85 Degree C. Tags: Surface Mount. More details for RWPR2-2439 can be seen below.