I'd agree with that.
It may also depend on how they define the terms. Every antenna has a figure
for "radiation" resistance. Could they be basing it on that? Or is it the
power lost in the loaded coils.....
Figures lie and liars figure!
on 1/23/03 4:45 PM, Pete Smith at firstname.lastname@example.org wrote:
> I've seen some fairly interesting claims recently for the efficiency of
> yagis with coil loading. I'm not quite sure what efficiency means in this
> context -- is it simply the percentage of the driving power that is
> actually available to be coupled to what we used to call the ether? If so,
> is it just another way of expressing the amount of loss in loading
> coils? If an antenna manufacturer claims 90 percent efficiency, is that
> just another way of saying that 1/10 of the applied power is being
> dissipated in heat?
NA9D (ex: KE9NA)
Citizen of the People's Democratic Republik of Illinois
Life Member: ARRL, NRA
Member: AMSAT, DXCC
http://www.qsl.net/na9d <- Updated on 1/22/03!!!
"A life lived in fear is a life half lived."