The 5MB/C-1000/U50-S5 from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 972.25 to 1027.75 MHz, Bandwidth 55.5 MHz (1dB), Center Frequency 1000 MHz, Insertion Loss 3.36 dB, Upper Rejection 40 dB. Tags: Lumped Component Filter. More details for 5MB/C-1000/U50-S5 can be seen below.