On Wed, 16 Apr 2008 21:37:56 +0100, "Barrett"
wrote:

Hi Richard

I have a manual tuner and two auto tuners that I have used and it makes no
difference to improve the received signal. I have also used two different
radios with the same outcome.
I'm wondering if the G5RV is to close and is causing this or if the square
10"x10" mounting plat that I have used in the centre of the Cobwebb might be
causing the problem.

The G5RV is at the same height as the homebrew Cobwebb and they are about
15ft apart. All other bands do not sharply drop off like 28MHz does on
receive signals.

Thanks

Hi Barrett,

One other thing that comes to mind is you may be cross-polarized,
which for line of sight transmission (and this close proximity so
qualifies) can exhibit substantially depressed signals.

This would mean that your Cobwebb homebrew is very much horizontally
polarized, and that your G5RV has enough slope to it to be
sufficiently vertical to your buddie's vertical signals.

I will let you sort out the particulars - like the buddies are also
vertical (if not, well, there goes that theory).....

73's
Richard Clark, KB7QHC