WI7B's antenna at sunset
It is mounted atop two Radio Shack mast sections, 6 meters above ground. An 1"1/2 x 1"1/8 cylinderical aluminum bolt was fabricated and tapped for 3/8"-24. This was press-fitted in the upper mast section and used to secure the coil to the mast with a 3/8"-24 stud. The 6 through 160 meter amateur bands are fully tunable.
A 2 meter square loop is mounted below the coil. A surrounding metal roof "panorama" to the east and south east adds a conductive high angle take-off to an otherwise unobstructed radiative pattern.
The whip in winter. On 26-27JAN08 a winter's storm covered the high desert in 8 inches of snow and 1/2 inch of ice. Now, all that ground loss can go to work and melt the accumulation on my antenna system. Hi Hi!
The coil on 06DEC08, a desert sunset...
The original WI7B antenna can be found here.