1. You need two 25” lengths of the 6” vent pipe.
Then put the through one ofthe
vent pipes and
secure the vent pipe to the PVC with self tapping
#8 sheet metal screws along the length. Leave
the screw closest to the inch gap slightly unscrewed,
one conductor of the coaxial cable
will attach to it.
Repeat
this process with the second vent pipe and
leave a 1 inch space between
them.
2. Obtain a 50-75 foot RG211 coaxial
cable with PL259 plugs. Cut one of the
plugs off. About 2 inches from the end of the cut end of the coax, cut
through the outer jacket, the braid and the insulation covering
the centerconductor but do not nick it. Remove these outer layers to
expose the center conductor. Next, remove about 1 inch of the outer
plastic to expose the braid. Take a 8 inch piece of #18 copper wire and
wrap several turns around the braid. Solder it to the braid. Connect
the inner conductor to the upper pipe and the wire attached to the
braid to the bottom pipe. Be certain they do not short together. Cover
the exposed connections and wires with hot melt glue or silicone
sealant. The end with the remaining plug will connect to the
transmitter. Use cable ties for strain relief.