This SAW filter for the receiving RF circuit of AMPS mobile communication equipment operating at 869 MHz ~ 894 MHz. MF1150V-2 TYPICAL CHARACTERISTICS Insertion Loss vs. Frequency 1 dB / REF 0 dB Input VSWR vs. Frequency S11 SWR 500 m / REF 1 [dB] 0 *1 *2 *3 *4 .