Showing posts with label low pass filter. Show all posts
Showing posts with label low pass filter. Show all posts

6 Mar 2022

Low pass filter design

With my upcoming permit to test on 8m, I may need to add external low pass filtering to ensure my TX is totally clean. There are several circuit calculators on the Internet. The one below is an example. It seems daft to buy one when a simple one can so easily be made.

See https://rf-tools.com/lc-filter/ .