On Wed, 27 Apr 2005 03:01:20 +0000 (UTC), "Reg Edwards"
wrote:

But if you, as an employee of a
reputable laboratory, were given the job of determining the forward
and reverse gains of fractal or other weird antennas, at 7 MHz and
144 MHz, what uncertainties would you state? I'd believe you.

Hi Reggie,

Measurement Mismatch Correction Error 0.04
Noise Power of Power Sensor 0.00
Zero error of Power Sensor 0.00
Power Meter Linearity 0.04
Space Loss Measurement Error 0.01
Multipath Curve Fitting Random Error 0.04
Proximity Effect Correction Error 0.05
The errors remain across all applications, only the assigned values
change. If I arbitrarily scaled all values by 25, few could challenge
the numbers.

At 7MHz we can all agree that the errors are going to be inversely
proportional to the astronomical cost to determine. No one is going
to perform it at HF when they can only afford 1/100th scale models
that offer the accuracies implied above. What would spending more
money buy them anyway?

73's
Richard Clark, KB7QHC