Saw BPF Band Portable Filter 1090mhz Professional Waveform Filter Tool Electronic Interface ModuleFeature:This product is a professional passfilter passfilter 1090mhz bpf, with small size, easy to carry, so you can carry it with you wherever you want to use it. Made of thin material, it has a long service lifeFeatures:It is handy and small in size, so you can take it anywhere you want to use it. Made of thin material, it has a long service life, does not need to be changed often. The middle frequency of this product at 25 is 1090db. Insertion loss within 1075 1101105mz per type is 2.3, maximum is 3.0.Amplitude ripple (p-p) within 1085 - 1095 per type is 0.25, maximum is 0.5.Specification:Center frequency: typ.1090dBSinsertion loss within 1075MHz 1105MHz: 2.3db (typ), 3.0db (max)Amplitude ripple within 1085mhz 1095mhz: 0.25db (typ), 0.5db (max)Attenuation (reference level 0db):D C 970mhz: 25.0db (min), 30db (typ)1150mhz 1300mhz: 25.0db (min), 33.5db (typ)Vswr within 1075mhz 1105mhz: 1.8db (typ), 2.1db (max)Source Impedance: 50zs (typ)Load Impedance: 50zl (typ)Package Included:1 * Band Pass Filter