The RK-3000 from Mini Circuits is a Frequency Multiplier with Output Frequency 140 to 3000 MHz, Input Power 12 to 15 dBm, Harmonics 10 to 40 dBc, Conversion Loss 11 to 17.5 dB, Frequnecy 70 to 1500 MHz. Tags: Frequency Doubler. More details for RK-3000 can be seen below.