Seoul National University College of Engineering announced that a research team led by Prof. Sung-Hoon Ahn of the Department ...

Most universal radio receivers have a very wide bandwidth that is not particulary for radio amateurs. The better models with narrower bandwith are almost always priced higher, too high for the reach ...

This audio noise filter circuit is a bandpass filter for audio frequency band. It filters unwanted signals that are lower or higher than the audio frequencies. It has 2 filters: a low pass filter and ...

TDK Corporation has released its latest noise suppression filters of the MAF0603GWY series. These measure only 0.6mm x 0.3mm x 0.3mm (L x W x H) for use in small consumer devices like smartphones and ...

I have been reading the discussion about reducing AM audio frequency response to 5 kHz. First Clear Channel implemented it, then Crawford. Now even Radio World has endorsed it. In this editorial I ...

Audio lines create noise that weakens signals and affects sound. A filter fixes both—here’s how it changes smartphone and wearable design.