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The SteppIR Antenna pictured below is for sale

There is a larger picture farther down the page.



My StepIR 4 Element beam with the 6 Meter option is for sale to the highest and best bidder.  It is located near Lakeland, Florida and is atop a 190 foot Rohn 65 tower. No other antennas are on the tower to interfere with the removal. The antenna was last used about 18 months ago and worked at that time. All of the cables between the shack and the tower have been removed and I have no way to test it now. The control box has been in storage since the antenna was last used.

The fiberglass elements received one coat of PPG DP-50 epoxy primer and a two coats of PPG automotive Acrylic Urethane before it was put up, and from the ground they look good. The rubber boots were wrapped to protect them from the sun so they should be OK.

Also included is a 2 inch Aluminum triple wall mast and a "Phantom" fiberglass element that corrects the antenna for rotational wind resistance. With the phantom element the antenna has little or no inclination to rotate in a strong wind. Optionally, The purchaser may also remove and take approximately 200 feet of 16 conductor SteppIR cable and several 200 foot runs of 7/8 inch Heliax cable.  Any cables not taken must be left tied securely to the tower.

As shown below, the antenna has a unique swivel plate on the boom that allows tipping either side of the boom down against the tower, so disassembly will be very easy. I put this antenna up entirely by myself and the time required to do so was less than two hours from the time all the components were ready to hoist up the tower.

And now the fine print:  The antenna is for sale as-is and where-is. Payment in full must be made before the removal starts. The successful bidder must remove the antenna in a timely manner after being notified. The bidder must agree to remove my Yaesu rotor (not included in sale) and bring it down safely for me.

The person(s) who climb the tower must be either be a tower contractor or have previous experience in tower work. All OSHA regulations must be observed during removal.  The tower has a 3/8 inch cable safety restraint system installed from top to bottom and it can be used by the remover if desired.  A liability waver will be required from all persons who climb the tower.

You may contact me by typing the address below into your email program.  Please include your amateur radio call in your email.  If you want to talk on the phone about this antenna I will give you my number if you request it in an email.

Jim Frederick, W4LF


The following three pictures are the swivel plate that made it possible for me to install the SteppIR 4 element beam atop my 200 foot tower entirely by myself. It allowed me to rotate either side of the boom down tightly against the side of the tower to install the elements. When all is assembled the plate is secured squarely with four large bolts that pass  through around the center piece.

The tie-wrap was replaced with a stainless cotter pin. The four through-bolts can be seen in this picture.


Here it is shown starting up the tower. It was pulled up with pulleys and a Polaris utility vehicle. The fiberglass elements are tied below the boom, all on individual ropes for ease of handling.


This is a picture of the boom assembly. The pipe down to the tower is actually the truss support and goes above the plate.

Detail of the rotor installation on the side of the tower. Note the notches in the top plate. The boom swivels down into either of these depending upon which end of the boom is to be worked on.

At the top of the tower and almost ready to swivel in place. The bent pipe in the background is an old electrical conduit which was taken down later.

A hand winch was used to complete the path from the pulley on the bracket to the boom mounting plate. I am shown winching it up in this picture

Fully atop the tower, but no elements yet

The completed antenna