Di-Rectional.....

[Kevin Vahey]

WSUN 620 in St Pete, Florida was first in 1932 protecting WTMJ Milwaukee.

On 9/1/07, Don A <donald_astelle@yahoo.com> wrote:
> Maybe Dan or some other technical mind can answer this.
>
> I know the first (licensed) stations on the air around 1921-ish....
>
> When did the engineers discover directional antenna patterns?
>
> What year did the first directional array go into effect?
>
> The technology (if you can call it that) has been around for a long
> time....but seems rather "hi-tech" for the 20's and 30's.....
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