I wish Bob Savage all the luck with his upgrade, but I think he's engaging in wishful thinking about the potential for further significant improvements in the signal strength at the pattern maxima. All he needs to do to demonstrate this to himself is to compare a polar plot of the current unadjusted pattern with a polar plot of the standard pattern as proposed in the upgrade application. So what if the signal at some minimum is 100 times the intended final value? How much difference does that make in the area enclosed by the curves. My guess is not much. The pattern RMS is a reflection of the area under the curves. What seem like huge errors percentagewise in the signal strength at the minima have almost no effect on the area enclosed by the curves, even though the same percentage difference at a maximum would have a HUGE effect. I haven't looked at the patterns in a while, but my guess is that, after the patterns are tuned up, the signal strength at the maxima will increase by at most a few percent. If it snows in Rochester between now and when the tuning is done, the effect at the pattern maxima of the change in soil conductivity will dwarf the effect of the tuning.
-- Dan Strassberg, [EMAIL PROTECTED] eFax 707-215-6367 _______________________________________________ IRCA mailing list [email protected] http://arizona.hard-core-dx.com/mailman/listinfo/irca Opinions expressed in messages on this mailing list are those of the original contributors and do not necessarily reflect the opinion of the IRCA, its editors, publishing staff, or officers For more information: http://www.ircaonline.org To Post a message: [email protected]
