Topband: Amazing Video of an extremely large circular array

[donovanf at starpower.net]

The video of the array begins at about half way through the video.  It appears to be hundreds of phased verticals in front of a circular reflecting screen.  Each element of the array appears to be a broadband pair of phased verticals

http://www.youtube.com/watch?v=bP6mnJGTyCQ&feature=related

Anyone want to try to build one?

73
Frank
W3LPL