I made a 137MHz NOAA bandpass filter. Here are some pictures of the filter and spectrum! : r/RTLSDR
137MHz SAW Filter | 137MHz SAW Filter with LNA | 137MHz SAW Filter for NOAA Satellites | ELEKITSORPARTS
LNA+SAW filter ADS-B for 1090 MHz receiver
137MHz Bandpass filter for NOAA / Meteor Satellites | Lets Hack It
Nooelec pre-amplifier Sawbird 137 Mhz LNA & SAW for NOAA
Pass Filter Amplifier | 433mhz Band Filter | 433mhz Saw Filter | Saw Filter 137mhz - 137mhz - Aliexpress
137MHz Bandpass filter for NOAA / Meteor Satellites | Lets Hack It
137 MHz BP Filter and Noise Source analysed with RTL-SDR Dongle
Pass Filter Amplifier | 433mhz Band Filter | 433mhz Saw Filter | Saw Filter 137mhz - 137mhz - Aliexpress
Pass Filter Amplifier | 433mhz Band Filter | 433mhz Saw Filter | Saw Filter 137mhz - 137mhz - Aliexpress
Pass Filter Amplifier | 137mhz Amplifier | 137mhz Filter | Automation Robot - 137mhz Saw - Aliexpress
/i/83456/products/2021-09-20T05%3A27%3A44.010Z-Assembled-137MHz-SAW-BPF-Band-Pass-Filter-Amplifier.jpg?1632090840 "137MHz SAW BPF Band Pass Filter Amplifier from Maker go on Tindie")
137MHz SAW BPF Band Pass Filter Amplifier from Maker go on Tindie
137 MHz BP Filter and Noise Source analysed with RTL-SDR Dongle
137mhz Band Pass Filter | 30mhz Band Pass Filter | High Band Pass Filter - New High - Aliexpress
137.5 MHz NOAA/APT Filter/Preamp – Airspy.US
DC5V 137MHz SAW BPF Bandpass Filter Amplifier Module Sale - Banggood USA-arrival notice-arrival notice
My Cavity Filter for the Weather Satellites on 137 MHz band
Amazon.com: Nooelec SAWbird+ NOAA Barebones - Premium Saw Filter & Cascaded Ultra-Low Noise LNA Module for NOAA Applications. 137MHz Center Frequency. : Electronics
DIY 137MHz band-pass filter V2.1 : r/RTLSDR
DIY 137MHz band-pass filter V2.1 : r/RTLSDR
137 MHz BP Filter and Noise Source analysed with RTL-SDR Dongle
Nooelec SAWbird+ NOAA Barebones - Premium Saw Filter & Cascaded Ultra-Low Noise LNA Module for NOAA Applications. 137MHz Center Frequency. : Electronics - Amazon.com
I built a 137MHz bandpass filter with only wires : r/rfelectronics
Nooelec - Nooelec SAWbird+ 2m Barebones - Premium Dual Ultra-Low Noise Amplifier (LNA) & SAW Filter Module for 2-Meter Amateur Radio Band Applications. 145MHz Center Frequency - SAWbird LNA Blocks - SDR
75 MHz Saw Filter
