The FX-07 from Pulsar Microwave is a Frequency Doubler with Input Frequnecy 3000 to 6000 MHz, Output Frequency 6000 to 12000 MHz, Input Power 10 dBm, Conversion Loss 13 dB, Spurious F1 20. Tags: Frequency Doubler, Passive Doubler, Quadrupler. More details for FX-07 can be seen below.