The copper J-pole, also called the copper cactus, has been a classic low cost, easy to build 2 meter antenna for the beginner as well as the more experienced ham. However, when attaching the SO-239 or N chassis-type connector to the J-pole, there has been no solid, efficient, good looking way to make that firm connection. The connector is typically attached to the side of the J-pole with only one screw, making it insecure and causing an unnecessary loop in the coax.
The products offered here provide a very professional looking and functional method of securely attaching the SO-239 or N connector to the J-pole. The adapter is machined from solid brass and is designed to be soldered to the base of the antenna. The SO-239 or N connector can then be attached to the adapter, making a very secure connection point. This means that your PL-259 or N male connector and coax will be firmly attached to the J-pole.
In addition to the SO-239 and N connector, an adapter is offered for use with 3/4 inch copper tubing. The larger tubing is commonly used for 6 meter antennas.
As shown in the photo, the adapter is on the right and is soldered directly to a copper tee.
The kit includes all of the hardware you need to assemble your J-pole, except the copper tubing and some fittings, which are available at all home supply stores.
Each adapter kit includes:
1 UHF SO-239 or N chassis mount connector (depending on which is ordered)
1 copper tee
4 stainless steel screws and washers
1 length of copper wire, and
Detailed instructions (which can be downloaded from the Assembly Instructions tab)
Please click on the Web Store tab to view and order these products.