Hits
Coaxial Stub Filters
- For the amateur VHF/UHF bands, you can make very effective filters using ordinary coaxial cable
post 13 Feb 2025
RF Filter Links →
High-Pass Filter Design
A high-pass filter’s task is just the opposite of a low-pass filter: to offer easy passage of a high-frequency signal and difficult passage to a low-frequency signal
High Power Lowpass Filter for 145 MHz
to build a low-pass filter for 145 MHz as required after power amplifiers to prevent harmonics to be emitted by the antenna
HF band pass filter
a HF band pass filter which can be used for operating with a running and multiplier stations during contests
Homebrew narrow CW filter
27 pF load capacitors as required in the datasheet and used in the original part simple fully insulated plug-in pins, no soldering required
73
A high-pass filter’s task is just the opposite of a low-pass filter: to offer easy passage of a high-frequency signal and difficult passage to a low-frequency signal
to build a low-pass filter for 145 MHz as required after power amplifiers to prevent harmonics to be emitted by the antenna
a HF band pass filter which can be used for operating with a running and multiplier stations during contests
27 pF load capacitors as required in the datasheet and used in the original part simple fully insulated plug-in pins, no soldering required
Microsat Ham radio shop for ulari project, aprs, aprs with radio, bluetooth, gps, gsm, ham radio interfaces, weather,accessories, cables to radio
Amateur radio kits by Kanga US
Enigma Component Shop Cable & wire,capacitors, connectors, crystals/oscillators, filters, hardware,kits/modules,test & measurement