The following table shows the shape factor of the SFF low-band filters:

SpecificationBPF1BPF2
Center frequency300 MHz300 MHz
Bandwidth5 MHz20 MHz
Insertion lossMaximum of 10 dBMaximum of 10 dB
Pass bandLess than 3 dB (297.5 MHz
and 302.5 MHz)
Less than 3 dB (290 MHz
and 310 MHz)
RippleMaximum of ±0.5 dBMaximum of ±0.5 dB
Stop BandMore than 35 dB (290 MHz
and 310 MHz)
More than 50 dB (270 MHz
and 330 MHz)
More than 20 dB (280 MHz
and 320 MHz)
More than 50 dB (270 MHz
and 330 MHz)
Input/output impedance50 Ω50 Ω