FM Trap

author: WarHawk-AVG
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2 layer board of 1.19 x 0.40 inches (30.1 x 10.1 mm)
Uploaded: December 29th 2015
Shared: December 29th 2015
Total Price: $2.35

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)

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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      Since this is a project designed by a community member, it may contain design errors that prevent it from working as intended. OSH Park cannot place any guarantees about the functionality or correctness of the design.
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