You want an antenna.

Fold the bare wire over the hose @ the foot and put the clamp over it. Let it slap around inside the hose. Poke it out the other end and you can fold it over the same way - but it would be ideal to run a sheet metal screw right into the metal duct as long as you are 100% sure the dust duct is tied into the building's electrical ground.

Static can do weird things...Make sure you disable the proximity switches with the VN command. They are susceptible to static and are like long antennae themselves. This will not affect your C3/homing. Before you change the VN settings - As the machine is running - stare at input 2 & 3 - do they flicker? If so, that's from static.

-B