This is a simple low pass filter design intended to  be placed in front of SDRs like the RX888 which do not have sufficient stop band provided by their internal filtering to keep aliased responses from degrading performance below 60 MHz.

Measured S21
-.05 dB at 50 kHz
-.9 dB at 30 MHz
-2.2dB at 50 Mhz



A QUCS model for this design is HERE.


For better  quick  viewing of the design, download the Kit file from the Source Link below, unzip it and drop the .sch or .pcb file onto kicanvas from a web browser.


Material List

What you will need to build this hardware

Assembled 60 MHz LPF   PCB

Download Kit     

Download Source

 Source and Kit files to be provided once verified