To determine the gain of a SW BC curtain antenna, we hung a 3-wire
(to
match 600-ohms) folded dipole alongside and at the same height as
the
curtain. We swiched transmission back and forth every 5 minutes
between
the dipole and the curtain. We continuously measured and recorded
the
signal strength for several days in the target area. We averaged
strengths of each signal and compared them for periods of the
recordings.

The HF dBd of the curtain agreed very well with that measured on the
model at 400 MHz in the lab before the curtain was built at full
scale.

Best regards, Richard Harrison, KB5WZI

==================================

Richard, fine, so that was the measurement procedure. Thanks for the
description.

Now all we want to know is what was the uncertainty in the
measurement.

Was it within plus or minus x percent? Or perhaps plus or minus y
decibels?

Can you remember the uncertainty approximately?

Or perhaps it didn't matter what the uncertainty was. In which case
it was a waste of time making the measurement.
----
Reg, G4FGQ