David & Margaret McBeth wrote:
If I join 2 lengths of 93 ohm coax to give 46.5 ohm impedance will the db
loss on the line be greater,less or the same as a single lengthof the coax?

You have not supplied enough information. What is the
load impedance in each case?
--
73, Cecil http://www.qsl.net/w5dxp