It was time for me to get on 160 meters.
Living in the North (Alaska), provides me a wonderful opportunity to do just that on my portable operations. I also wanted 80 and 40 meter coverage with the same antenna, and I wanted to try something other than a loop this time.

For my low band portable winter operations from the Yukon, I needed an antenna that was not only suited for both 80 and 160 meters but it had to be easy to install, require minimal supporting and it couldn't take up a lot of space. My motor home would be one support and for the other support I'll have to "wing-it" in the field.
 
Thanks to 2E0BAX for his inspiration (see "Limited Space HF Antenna For 160, 80 and 40 Meters" at Hamuniverse.com), I've designed my version around my portable operating position (motor home).

I decided a full wavelength on 80 meters (254 feet) which yields a half-wave on 160 meters would be enough wire for me to get tangled up in, or trip over several times, while erecting, hi hi! Oh, did I mention it will probably be 40 below zero with howling winds as well? But this is just half of the fun.....the ground system will have to be elaborate if I'm to achieve success with this antenna. I'll use a mesh screen and all the scrap wire I can muster up for the ground system.

I'll also use a "long coil" (see "A 28 MHz through 7 MHz Vertical Portable Dipole" by yours truely, at Hamuniverse.com) that I've had good luck with in the past to "shorten" the antenna length.

I decided not to use more than 30% of the entire antenna length in the coil (ie-254 feet x 30% is 76 feet. Subtracting 76 from 254 gives me the real antenna length of 178 feet minus the mast height of 25 feet equates to 153 feet for the sloper part.

I changed the design and used #10 stranded wire for the sloper part to give the added strength I'd need on the long span. For the rest of the antenna #14 wire was used.

The vertical radiator terminates to the PVC coupling and the coax center conductor is tied to that. The coax shield connects directly to the ground lug on the 1" pipe flange. The plumbers tape (metal ribbon) bonds the pipe flange to the metal screen.

Coax Termination base point. Notice white PVC insulator!

 
The "Launch Pad" showing the ground radial screen and plumbers tape attached.

Update - March 2011
Operating with it in the Dominican Republic with some modifications for coverage from 40 meters to 10 meters.