The FTR-880 from RF Bay is a Frequency Multiplier with Input Frequency 289 to 299 MHz, Output Frequency 867 to 897 MHz, Harmonics 93 to 103 dBc, Conversion Loss 9.5 dB, Frequnecy 289 to 299 MHz. Tags: Module with Connectors, Active. More details for FTR-880 can be seen below.