To mi wygląda ciekawie:
https://www.kb6nu.com/wp-content/uploads/2015/12/ad5x-front-end-protection-schematic.jpg
https://www.kb6nu.com/protect-receiver-inputs/
https://www.kb6nu.com/wp-content/uploads/2015/12/ad5x-front-end-protection-schematic.jpg
https://www.kb6nu.com/protect-receiver-inputs/