FM 88-108 NOTCH FILTER | SIMPLE PROJECT

[@CT1JRZ]

Nice filter! With holes to have better access to the trimers it would be much easy to set. I don´t know but maybe the inductors that go to de same point, sould be more away from each ohter. I don´t know. But the filter works great. Good job. Best regards

[@IZ0MTW]

Olà Vitor, thanks for watching and commenting. The concept is nice but mine was a very rudimental realisation back in the days. Actually I was surprised to find out that the filter was enough centred over the FM band. I didn’t have any instruments at that time to tune the notch. It could definitely be improved with some attention. All the best and looking for your next video! Diego

[@ptronix]

I think this marconi was more interesting than the filter! It's a lovely piece of equipment. I can't imagine building a filter without the ability to see the response in real time on the screen, it would be almost impossible. Something you could try that may improve it is put a screen between the two coils that go to earth, as there may be coupling between them. Thanks for the video Diego

[@IZ0MTW]

Hi Nick and thanks for commenting. The Marconi is absolutely a beautiful piece of kit. The more I use it the more I like it. Would consider a video of it in the future. And would like to bring it back to calibration. Thank you for your tip, I’ll try and see the result. After all I think I’ll just use the two BNC connectors for something else. At the end of the day I have another and better notch filter for the scanner. Bye now!