[AMRadio] antenna tuners


Gary Schafer garyschafer at comcast.net
Thu Apr 20 14:04:44 EDT 2006



> 
> Another factor causing loss with a high SWR is dielectric losses at the
> recurring high rf voltage points along the line.  At low impedances, it is
> the resistive loss in the wire, and at high impedances, it is dielectric
> losses that combine to cause signal loss.  But SWR is much, much less
> critical than most hams have been led to believe.

It is my understanding that at HF only resistive loss comes into play.
Dielectric loss isn't a problem until you get into vhf.

73
Gary  K4FMX





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