OptLowpass questions & answers

Program to quickly design HF amateur radio output lowpass filters, using ideal parts values

Ask a question about OptLowpass

Alternative downloads

FilterLab
Free
rating

It allows you to design low pass, high pass, and band pass filters.

Versus
Free
rating

It can be configured for almost any One on One competition.

Free Easy Audio Editor
Free
rating

You can capture any sound from all internal or external audio sources.