Bill Hansen . ..

^ I am looking for a good source of information on Vertical Dipole
^ Antennas and their construction.

Sorry but I can't point you to a source but I can give you details here. The
construction of a receive-only dipole is very simple. All you need is some
coax of practically any type and two pieces of wire, also of almost any type.
Separate and expose the two conductors of the coax and attach one piece of
wire to each conductor. Cut each wire to the same length, the length
calculated for a frequency near the center of the listening area and as per
the following formula:

LENGTH IN METERS = 75 / MEGAHERTZ

For example, if I'm listening to VHF civil aircraft frequencies, roughly
118MHz to 136MHz, I'll cut the wires for roughly 120MHz with the formula:

75/120 = 0.625 meters

The orientation of the feedline, the coax, is not important. Just tape the
wire that is attached to the shielding back along the coax and leave the
other wire coming straight out. You can tape the whole thing to a wood,
plastic, fiberglass, or other non-conductive stick for stiffness.

Since this is a receive-only radio group these instructions are for a
receive-only antenna. The antenna does not need to be matched to a
transmitter so a matching transformer is not necessary.

Frank