The M63T/M66T/M67T from Spectrum Control is a RF Mixer with RF Frequency 1000 to 2000 MHz, LO Frequency 1000 to 2000 MHz, IF Frequency 0 to 1000 MHz, Conversion Loss 8.0 dB, LO Drive - Power +7 to +23 dBm. Tags: Surface Mount, Double Balanced Mixer. More details for M63T/M66T/M67T can be seen below.