The 4HL10-397.26/T3-O/O from Sainty-Tech Communications Limited is a Band Pass Filter with Frequency 393.415 to 401.105 MHz, Bandwidth 7.69 MHz (3dB), Center Frequency 397.26 MHz, Insertion Loss 1.47 dB, Upper Rejection 30 dB. Tags: Cavity Filter. More details for 4HL10-397.26/T3-O/O can be seen below.