I'm new to this site, but thought I would put my two cents into the hat. I always try to park my RV at a fence line, tree line or somewhere that foot traffic wont hinder the walker or my antenna. Its a 40 meter delta loop... triangle shape... 132 feet total length..... 28 ga wire... its center is held up with a 20 foot colapsable fishing rod.... the ends are brought back to the center, with the sides pulled out just taught enough to raise the bottom of the triangle about 3 feet off the ground.... the ends are connected to a 4 to 1 balun.... wire cost about three bucks (Dayton bargin), pole was 19.95 and balun was 27.00 (you could make your own for much less). Its resonate on 15 and 40, but my KX3 will tune it 10 thru 80 without any problems.... have talked the world QRP ssb. Gary N8WTT.
http://www.n8wtt.com