[Towertalk] Loop Gain (was LPA designs)

[Pete Smith]

At 11:28 AM 11/16/02 -0600, Jon Ogden wrote:
>on 11/16/02 10:49 AM, Zyg Skrobanski at af4mp@mindspring.com wrote:
>
> > I don't think I've seen Yagi's used by any SW broadcasters.
>
>Probably not.  It's too narrow in bandwidth and probably too directional.
>

Actually, when I lived in Taiwan in the late 1960's, there was a religious 
broadcasting station there that used a three-element tribander (modified 
for BC frequencies, I assume) to broadcast to the mainland.  The quad 
parasitic array was, I believe, developed at broadcast station 
HCJB.  Today, VOA et al frequently make use of curtain arrays that, 
depending on their configuration, can be very directional indeed.  One of 
the other things that is (or was) on the F12 web site was N6BT's 
description of using a 21 dBi gain broadcast curtain in a DX contest.


73, Pete N4ZR
Sometimes a tower is just a tower