The power radiation pattern would not be favorable.
UH

Why is that?

Take a look at http://b1.ifrm.com/2510/101/0/p10229...ionPattern.gif ..

Your wires, facing fore/aft, would radiate as a dipole. Good to the sides, no coverage in front or behind - arguably the most important place to have coverage.

You can see with a vertical antenna, you have good all-quadrant horizontal coverage, but are unprotected from a vertical attack (you still have coverage above and below for close transmitters via side lobes). It has good coverage for +/- 20 degrees from the horizon - which is where the vast majority of the threat exists.