18-03-2018, 11:10 AM
Hi.
I've replaced L3 from a 10uh to a 10mh for the HFC, also removed the 1nf filter cap, this has made a big difference, the rumbling noise has virtually dissapeared and headphone drive is now too loud but also a less distorted audio with better top end.
I think I will redo the video as the improvement is very much marked.
I've also tested for interference using another radio and its only a few feet.
I've replaced L3 from a 10uh to a 10mh for the HFC, also removed the 1nf filter cap, this has made a big difference, the rumbling noise has virtually dissapeared and headphone drive is now too loud but also a less distorted audio with better top end.
I think I will redo the video as the improvement is very much marked.
I've also tested for interference using another radio and its only a few feet.
