[Elecraft] Electric fence QRM?

Vic Rosenthal [email protected]
Fri Jul 11 10:21:02 2003


Deni wrote:
> Any tips on eliminating or reducing Electric fence QRM, apart from moving !

> I'm using a K2 and the NB sometimes helps a little but doesn't eliminate the
> QRM which sounds like a regular ticking about once per second

The noise blanker in the K2 can be made more effective against electric 
fence interference by increasing the time constant of the NB2 circuit. 
You can do this by increasing the value of C12 on the NB board.  Several 
K2 owners found that values of 0.047 to 0.22 uf worked best for them; 
you may have to experiment to find the value that best matches the pulse 
width of your fence.

Vic K2VCO