KENWOOD ACCESSORIES FILTER LF-30A Low-pass filter for HF operation (100 watts max power) Request product info Other Features AttenuationMore than 90 dB between 90 - 300 MHzFrequency ResponseLow Pass Cut-off at 30MHzInsertion LossLess than 0.5 dB at 30 MHzMicrophone Impedance50 OhmsWeight560g our brands