This BPF is intended to use as high quality RX filter, he need to be connected between RX antenna and RX itself.
Pass band can be selected by BCD (binary) code with 3.3v or 5v logic level, onboard jumper selectable, see picture above.
Pass bands is 1.8, 3.5, 7.0, 10.0, 14.0, 18.0, 21.0, 24.0, 28.0 mHz.
Input and output impedance is 50 Ohm.
Input and output connectors is SMA female.
Power supply is 5v 0.1a max.
Board sizes is 120x75 mm.
Bandwidth and insertion losses
1.8 1.65-2.05 mHz less than 1.7dB
3.5 3.25-4.10 mHz less than 1.2 dB
7.0 6.57-7.40 mHz less than 1.8dB
10.0 9.5-10.7 mHz less than 1.4dB
14.0 13.8-15.3 mHz less than 1.1dB
18.0 16.7-18.8 mHz less than 1.3dB
21.0 19.8-22.4 mHz less than 1.1dB
24.0 23.4-26.1 mHz less than 1.5dB
28.0 26.7-30.1 mHz less than 1.1dB