The AH-4 by ICOM has to be one of the easiest and versatile pieces of ham radio gear I have experienced. I use when mobile, for portable operations and occasional home use. Here are photos of a trailer hitch mount I will be using for the National Parks on the Air program and the Missouri QSO Party.
Mast is a S9v31 product.
PVC is 3" with a 3" to 1 1/2 adapter.
Wire is a rubber coated test lead wire which is very flexible.