At 7/6/2005 12:51 PM, you wrote:
>Steve wrote:
>
> > Hi
> >
> > well 3dB is double the power 6dB is 4 times etc, etc
> > So in theory 20w into ant = 40w ERP
> > Yes I know 50Mhz folded dipoles are big. I was toying with making one, but
> > never did
> >
> > 73
> >
> > Steve M1SWB
>
>But dB is relative. And the dBi means that it is referenced to an
>isotropic source, where GOOD manufacturers reference a dipole.
"Good" manufacturers will simply indicate what the reference is (dBi or
dBd). Personally I prefer dBi because you don't have to add in the 2.12 dB
to calculate EIRP.
Bob NO6B
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