Pipe type bracket

The Author has been making bracket for antennas and towers. There are three variances for the antenna mount. For example, here's a bracket made for mounting on a 4" steel pipe. The middle plate is for securing to the pipe. Two U-bolts are used. The ends are for securing two antennas with a common base. One U-bolt is used for each end. Two brackets are used to ensure endurance in harsh winter (icing) conditions.

Water can form inside the square tubing from condensation which can cause some corrosion in the form of rust. Therefore, a 5/32" "weep" hole is made on each end of the bracket. It's small enough to prevent most insects from getting inside but large enough to let the water out. Since water flows "downhill" the holes are on the bottom (facing the ground) to let the water fall out.

Shown here is the finished hole

This next variance uses "L" (angle) for strapping on ABS antennas with several hose clamps.

The third variance has smaller pipes on each end. It's for the ABS antennas, but using a V-V adaptor, all with hose clamps.

Shown here is the weep hole being drilled.

To the right is another (larger) hole that the plating vendor did to hang the bracket in the vat. Due to poor communications they failed to inform the customer (Author) this was needed to hang the brackets in the vat during plating. To correct this issue the larger hole was sealed with RTV. In the future builds the Author plans to drill another hole in a non-intrusive area as not to upset the drain (weep) hole function.

All variances are galvanize plated and stainless steel holes clamps are used. These actions help to keep PIM issues down at a radio site.

This may be copied in complete form only for non-profit purposes, such as for the knowledge for the Amateur Radio Service, with the Author credited as designer. For other arrangements please contact the Author.