Jim Kelley wrote:

Cecil Moore wrote:
I didn't realize that a UWB pulse involved flashlights
but I learn strange new things from you all the time.

You didn't learn that from me. What you should have learned is that DC
can generate photons, contrary to your repeated assertions.

Just in case someone doesn't understand your silly humor, Jim, here's
the original posting:

"It is said that a transmitted UWB pulse should not have any DC because
of the transmitting antenna:"

Antennas emit coherent photons. As far as I know, there's no such thing
as a DC coherent photon, but if I'm wrong, please enlighten us. It's obvious
that I was talking about coherent photons but just for you I will repeat with
the context included this time:

Steady-state DC is incapable of generating coherent photons from an antenna.
--
73, Cecil http://www.qsl.net/w5dxp