The HD32537 from HD Communications Corp is a Frequency Multiplier with Input Frequency 289 to 899 MHz, Output Frequency 867 to 899 MHz, Output Power 9.5 dBm, Harmonics 73 to 75 dBc, Conversion Gain 6 to 9.5 dB. Tags: Module with Connectors, Active. More details for HD32537 can be seen below.