On Sun, 21 Nov 2004 15:39:31 GMT, "Bert Craig"
wrote:
Opinions please.

Hi Bert,

When I read a testimonial like:
In direct comparisons with a G5RV at the same height,
I am constantly receiving 3 S-Units better when using the Cobra.
I have to wonder about the source.

$90 for zipcord?

Well, opinion aside, I modeled this (each arm is a single wire, folded
back on itself twice) and when I tried to run a SWR sweep in EZNEC
from 2MHz to 30MHz in 0.1MHz steps, EZNEC stalled and gave up.

I suppose this may have been due to warnings of wires being too close.
As it was, I pulled the zip wires apart 1.2" (0.1'). EZNEC wanted a
minimum 6". I tried again with 1MHz steps, and the full sweep drew a
line across the top of the chart (max SWR). Hoping for more
resolution, I tried with 0.2MHz steps, and EZNEC stalled again. Third
time is charm (so the saying goes), and with 0.25MHz steps - it
stalled again.

-sigh-

73's
Richard Clark, KB7QHC