My Two Turn Magnetic Antenna Pictures

To download the pictures "Right Click" on the underlined links and select "Save Target As" then enter the location where you wish to save them to.

Picture 01
A long view of the loop. You can see the 2 pipe turns and the coax feed loop clearly. The 2 trombone capacitors are mounted on a piece of harwood. The 2 motor/gearbox assy's are at the 2 ends.

Picture 02
A view a little closer. You can see the feed loop elongation needed to reduce the SWR.

Picture 03
An even closer view of the central area. You'll see that I've mounted the whole thing on a nylon bread board for stability and convienience.

Picture 04
This view shows the end of the trompbone capacitor used to tune inside a band. It is the one using 1/2 inch outer pipe. You can see the two microswitches used to define the travel limits on the capacitor (one is red and the other is black). The portion of brick on the motor assy is used for balance.

Picture 05
This view shows the course trombone capacitor used to tune from one band to the next. It is the one using 3/4 inch outer pipe. It is shown totally withdrawn and the little white tab is pushed up against the microswitch stopping any further outwards motion.

Picture 06
This view is a close up on the trombone capacitor used to tune inside a band. It is about 5/8 withdrawn. This view also shows the rotation motor/gearbos assy. The whole antenna is supported from the roof. The board that the rotation motor/gearbox assy is mounted to is actually not touching the circular disk beneath. There is a pin (large nail) centering the loop assy over the disk and the rotation motor/gearbox assy drives a small grooved shaft around the outside of the disk imparting rotation to the antenna.

Picture 07
Another view from the fine tuning end.

Picture 08
and finally another view.