[TowerTalk] Help in ID'ing an unusual antenna spotted....

[Terry Conboy]

At 11:52 AM 2007-06-18, WW4T at aol.com wrote:
>A couple of weeks ago, we were in Hawaii for the first time, and  visiting
>the famous "Diamondhead" Crater on the edge of Honolulu.
>
>   There is a military installation inside the crater, and the main  tourist
>attraction is to climb the inside of the crater to the old military  bunkers
>that are built along the rim of the crater overlooking the ocean 
>and  Honolulu.
>
>   To get to my point, as we were leaving the crater area on a tour bus
>afterward, I got a quick glimpse of an unusual antenna that I had never seen
>before.
>
>   There appeared to be a couple of missing elements and a generally  rundown
>appearance.  It obviously was part of the military 
>installation,  but appeared
>to be in a state of disrepair.
>
>   It looked like a large "corner reflector" antenna, BUT was in the 
> HF  range
>by the apparent size of the elements, plus it appeared to be a "staggered"
>element, log periodic design.
>
>   It was joined together at the "small element" end, with the  larger
>elements being on the open end.
>
>   The largest elements suggested resonance around 13-14 megs  maybe?  ( Like
>I said, it was a quick glimpse as we passed by on the way  out of the
>installation. )
>
>   I have seen a lot of antennas, and several corner reflector  antennas, but
>this was most unusual from my perspective.
>
>   Just thought I would throw it out for any info or if anyone had ever  been
>assigned to that Diamondhead installation.

Did it look like any of these?
http://www.antenna.be/tci-503.pdf
http://www.antenna.be/tci-50713.pdf
http://www.antenna.be/lpv.html

At one time, KGEI had a vertically polarized log periodic at their 
site on the west shore of San Francisco Bay, near Belmont, adjacent to KNBR.

73, Terry N6RY