On Thu, 16 Aug 2007 23:22:43 -0400, J. Mc Laughlin wrote:

For less than $1000 you may purchase and use a LPDA that will
accomplish what you specify. Several such antennas are on the market or
you could construct one from scratch.

Good morning, Mac.

Yes, the log periodic was my other alternative to the SteppIR (in fact,
the SteppIR was something I've been considering to mitigate the size of
the LPDA). It should do well for the higher frequencies of interest (14
to 24 MHz).

At one time I considered a wire log periodic, pointing straight up, as an
NVIS antenna for the lower range (2 to about 8 MHz). Then I went to
lie down until the thought went away. :-)