This SAW filter for the transmitting RF circuit of AMPS mobile communication equipment operating at 824 MHz ~ 849 MHz. MF1151V-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 <.