Rob Wolf writes re Bob Archer Antennae wiring:

Do I understand correctly that the center conductor of the RG-400 cable goes to the terminal that is electrically isolated from the antenna, and the shield goes to the terminal that is electrically connected to the antenna?

Rob,

That is correct. The “isolated” terminal is the active transmitting/receiving element; the “antennae” could be considered the “ground plane.”

A tip that may help: Use a piece of thin copper sheet (available at a model or crafts store) to make a small clamp that looks like a standard Adel clamp. The inside diameter should be a bit smaller than the outside diameter of the RG-400. Strip back the outer shield to expose the needed amount of center conductor and insulation. Then remove an additional section of the outer insulation to expose a length of shield that corresponds to the width of your clamp (1/4” or so). Put the clamp over the exposed shield, then fasten the tongue of the clamp to the “antenna” post.  Then solder your clamp to the shield, being careful not to damage the center conductor or it’s insulation. This makes a secure mechanical and electrical connection and holds the antennae cable in place.

Bob