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
70
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
Ferrite Shop Ferrite-shop on-line shop, cable clamps,toroids, cable cores, technic,ferrite material choice
Amateur radio kits by Kanga US
Pcs Electronics RF power amplifiers-pallets archives-ABC of FM AM DAB+ DRM radio transmitters