The CPPD-0.85-2 from Crystek Corporation is a Frequency Multiplier with Output Frequency 1.7 to 4 GHz, Input Power 10 to 20 dBm, Output Power 27 dBm, Conversion Loss 15 dB, Frequnecy 850 MHz to 2 GHz. Tags: Connectorized, Frequency Doubler, Passive. More details for CPPD-0.85-2 can be seen below.