Quantic PMI Model BPF-440M-80M-SFF is a bandpass filter with center frequency of 0.44 GHz; operates over the frequency range of 0.4 to 0.48 GHz with a maximum insertion loss of 2.5 dB and a maximum VSWR of 1.5:1. Package size is 1.38" x 0.47" x 0.39" with SMA female connectors.