I made a 137MHz NOAA bandpass filter. Here are some pictures of the filter and spectrum! : r/RTLSDR
Amazon.com: Broadcast AM Reject High Pass Filter (2.6 MHz HPF) by RTL-SDR Blog : Electronics
RTL-SDR bandpass-filter and DIY coax-notch filters
Low Pass Filter for RTL-SDR Direct Sampling Mode
RTL-SDR.com Broadcast FM Band-Stop Filter - TechnoFix UK
A simple homebrew high pass filter | The SWLing Post
Band Pass Filter for HF and VHF Amateur Radio Bands | AmoghDesai.com
137MHz Bandpass filter for NOAA / Meteor Satellites | Lets Hack It
RTL-SDR Filter Cards | Multichannel SDR Transceivers and Audio Arrays
RTL-SDR Filter Cards | Multichannel SDR Transceivers and Audio Arrays
Direct Sampling 14 MHz Low Pass Filter and Galvanic Isolator for the RTL-SDR now for sale in Japan
DIY ADSB/NOAA bandpass filters - from no pcb experience to functioning in one handy album! : r/RTLSDR
Amazon.com: Broadcast AM Reject High Pass Filter (2.6 MHz HPF) by RTL-SDR Blog : Electronics
Band Pass Filter Bpf 315mhz 433mhz 1090mhz 1575mhz 2450mhz 5.8ghz For 2.4g 5.8g Wifi Gps Rtl-sdr Receiver Ham Radio Amplifier - Oscilloscope Parts & Accessories - AliExpress
RTL-SDR Project Antenna Splitter + Band Pass Filters + LNA with ESD protection - YouTube
Band Pass Filter Bpf 315m 433m 900m 1090m 1575m 2450m 2.4g Anti-interference For Rtl-sdr Receiver Ham Radio Amplifier Remote - Oscilloscope Parts & Accessories - AliExpress
A dirt cheap “spectrum analyzer” with an RTL-SDR dongle. | Hans Van Ingelgom
Amazon.com: Broadcast AM Reject High Pass Filter (2.6 MHz HPF) by RTL-SDR Blog : Electronics
137 MHz BP Filter and Noise Source analysed with RTL-SDR Dongle
SDR
Designing an LNA with bandpass filter for 430 Mhz – from a beginner's perspective | alicja • space
filter
HF BPF, band pass filter, RTL SDR HERMES ODYSSEY HiQSDR Red Pitaya transceiver | eBay
