The HRT-BF(147.5/7)-899N from Chengdu Filter Technology Co.,Ltd is a Band Pass Filter with Frequency 144 to 151 MHz, Bandwidth 7 MHz, Center Frequency 147.5 MHz, Insertion Loss 0.4 dB, Rejection 40 dB. Tags: Module with Connectors, Cavity Filter. More details for HRT-BF(147.5/7)-899N can be seen below.