I made a 137MHz NOAA bandpass filter. Here are some pictures of the filter and spectrum! : r/RTLSDR
Amazon.com: Bandpass Filter Module, PCB Easy Installation Band Filters Board Efficient for DIY : Electronics
LNA for all: DIY 137 MHz WX sat BP filter
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4pcs DIY 88-108M FM BPF Band Pass Filter PCBA Bandpass 100M Insertion Loss 2DB | eBay
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Sweef - simple variable passive bandpass filter | jayrope
Passive Band Pass Filter Circuit Design and Applications
A simple homebrew high pass filter | The SWLing Post
Passive Band Pass Filter Circuit Design and Applications
BandPass Filter
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RC Band Pass Filters - How To Design The Circuit - YouTube
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Sweef - simple variable passive bandpass filter | jayrope
A 70cm Bandpass Filter – Electronic Projects for Fun
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Band pass filter
electro-music.com wiki | Schematics / Band Pass Filter
