Richard Clark wrote:
Howzabout (as a variation of another posting):
source50---50 ohm feedline---+---150 ohm feedline---load150

If it is so easy for you, and difficult for Jim, this should be a
slam-dunk....

It is not easy for me or anyone else. It is impossible to accurately
calculate rho just from the above information. Jim is the one who
says it's easy. I say it's impossible. Did you read Roy's thoughts
on the subject?
--
73, Cecil, W5DXP