Richard Clark wrote:
What reflections exist, exist at the input port of the Bird which is
50 Ohms by design, and which is attached to a 50 Ohm load by
deliberate selection.

But the 50 ohm load is attached through a piece of 75 ohm coax
supporting an SWR of 1.5:1. If you don't realize that fact, I
feel sorry for you.
--
73, Cecil http://www.qsl.net/w5dxp