FM Trap

by WarHawk-AVG.
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2 layer board of 1.19x0.40 inches (30.12x10.11 mm).
Shared on December 29th, 2015 11:07.

FM Trap

2 layer board of 1.19x0.4 inches (30x10mm). $2.35 for three.

I borrowed the design/idea from a blog by 9A4QV and designed this board, used to filter/block overpowering FM radio stations and help clean up recieve of RTL-SDR recievers…this is for all the DIY'ers out there

Complete information DIY “FM TRAP” or 88-108 MHz Band STOP filter

Example Example board

2x 56pF capacitors (SMD 0805)

1x 22pF capacitor (SMD 0805)

2x 45nH inductance (2.5 turns, 0.35mm wire inner dia 5mm)

1x 126nH inductance (5 turns, 0.35mm wire inner dia 5mm)

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