"Cecil Moore" wrote in message
m...
Dave wrote:
an interesting diversion until everyone was convinced that you were off
the wall. now its time to re-open a dead thread???.

No, an interesting diversion that has been resolved. Time to return
to the real issue.

as far as cheap swr meters, the daiwa, swan, and mfj manuals all require
50 ohm coax 'for accurate readings'... a joke by any standard of
measurement for that type of instrument. but just to put this one to
rest quickly... i set up my tdr and ran some quick measurements. this
tdr will resolve a 6" 75 ohm jumper in the 25' or so of 50 ohm test cable
that i used. i measured an mfj-815b and a daiwa ns-660pa and they are
indistiguishable from the 50 ohm line. so the answer is yes, they do
internally look like a 50 ohm line section.

Try it with 75 ohm coax. I suspect they will be equally indistinguishable
from 75 ohm line.

ok, just for you i swapped all the cables around. and you are wrong, it is
not indistinguishable from 75 ohms, it is easily picked out as a 50 ohm
section.