Does not simulate. Upper left is antenna signal into house. Long line on right is outdoor antenna which connects to NC switch (top of sparkplug). Thick scrap aluminum bracket with 90 degree bend ( not shown) has hole drilled slightly smaller than thread diameter on sparkplug base so when you wrench sparkplug in it cuts own threads into the aluminum mount. Aluminum mount attaches to outer wall of building.
Base of sparkplug screwed into aluminum holder has heavy wire to connect to outdoor ground connection.
