The DBL510 from R & K Company Limited is a Frequency Multiplier with Input Frequency 1 to 500 MHz, Output Frequency 2 to 1000 MHz, Input Power 10 to 13 dBm, Supression F 18 to 25 dBc, Supression 3F 25 to 30 Dbc. Tags: Drop-ln. More details for DBL510 can be seen below.