Tom Donaly wrote:
I was hoping I could get some
kind of nut philosophical justification for negative average power
out of Cecil, but you sprang the trap.

The sign of power can indicate direction as in:

Pnet = Pfor - Pref

or destructive interference as in:

Pnet = P1 + P2 - 2*SQRT(P1*P2)
--
73, Cecil http://www.qsl.net/w5dxp