I had seen a vague reference that the antenna cable from the coil did not have to come all the way up to the RC to get a signal.  I don't dive but, may want to detect the edge of fresh water streams, ponds and lakes.  What I came up with will allow submerging the coil about 20" inches or so.   It can be left in place for ground hunting and does not prevent quickly collapsing or taking apart the rods.   So I bought a thin black RG174 coaxial cable to play with.  I stripped the ends and