Use the formula Vrms = 4.44.F.N.A.B to calculate the Minimum turns needed on any given core, using a B of around 0.1 Tesla for a good safety margin. All non-gapped ferrites designed for SMPSU transfo
VE3TOK wrote: My very thick coax was running true the living room to the shack and I heard from time to time...tick... tick and my wife didn't know where it was coming from...No storm was audible ..
But much better still a bleed choke, making sure the inductance is high enough not to affect the matching. A good choke would be made from a ferrite core and as it is not carrying any power a smaller
If you feed your antenna, as many do, via a matching transformer (3C85 core) then the antenna and the line to the tx/rx will be automatically grounded. Another advantage of this method of feeding ant
From Dave G3YMC If you feed your antenna, as many do, via a matching transformer (3C85 core) then the antenna and the line to the tx/rx will be automatically grounded. Another advantage of this metho
Hello from Iowa in the US - EN31! As a personal opinion and preference and based on a long period of time of radio experimentation, NEVER have ANY antenna without some type of a DC path to ground at
I had this problem when I was still living in the Netherlands and my antenna for HF was on top of a 13 story building.. My very thick coax was running true the living room to the shack and I heard fr