NSTS1415 Apr. 2013 NewJRC SAW FILTER NSTS1415 Application 420MHz High Attenuation Type Electrical Specification: (Table 1) The device characteristics are measured in the circuit shown in Fig.1. Table 1. Electrical Specifications Item Spec. Typical Input and Output Impedance - 50Ω Nominal Center Frequency (f0) - 420MHz Insertion Loss 410-430MHz 4.0dB max. 3.1dB Response Variation 2.0dB max. 0.7dB Input / Output Return Loss 10dB min. 15dB Out of Band Rejection 456.675MHz 15.