[mikethedruid]

Looking at the schematic posted, using a dipole on this circuit, with the black terminal permanently connected to CHASSIS ground, would only make sense if, when using a dipole, the chassis was NOT EARTH grounded, but allowed to float, in which case the antenna would be balanced. If earth ground were also connected to the GND terminal, it would defeat the whole purpose of 1/2 the dipole and turn it into a long wire half the length of the whole antenna. Perhaps careful study and reading from the various parts of an actual antenna would help answer these questions.