Re: NEC-LIST: Coil-loading.

Doug,

I'm not certain, but, I believe that Marconi may have loaded his vertical
antennas with coils. If he did, he may have invented the antenna loading
coil. I have seen some examples of antenna loading coils that were
commonly being used in long wave radio stations in 1925, or so. The
earliest references to the term loading coils is in telegraph lines. I
believe that Oliver Heaviside first suggested their use in reducing the
transmission loss over long distances and some engineer at AT&T first used
them in practice.

I'm too young to know all this first hand, so, I'm not guaranteeing that
it's correct.

I saw John Belrose at an IEEE Broadcast conference once. He did a good job
analytically and verbally disproving the CFA antenna performance claims in
front of the inventors there. I think that was about the last time anyone
ever talked about the CFA like it was somthing special.

Best Regards,
Roland

"D. B. Miron" <dbmiron_at_paulbunyan.net> writes:
> Good day,
>
> I recently read John Belrose's "Short Coil-Loaded HF Mobile
> Antennas..." in ARRL's "Vertical Antenna Classics". He
> claims the first analysis article in a 1953 issue of QST,
> which leads me to wonder who discovered or invented the idea
> and when?
>
> Thanks,
> Doug Miron
>
> --
> The NEC-List mailing list
> NEC-List_at_robomod.net
> http://www.robomod.net/mailman/listinfo/nec-list
>

-- 
The NEC-List mailing list
NEC-List_at_robomod.net
http://www.robomod.net/mailman/listinfo/nec-list