This picture shows a Super Beacon Antenna Holder with no antenna.
You want to use the screw (silver colored) to open the holder enough to allow the antenna to be inserted.
When inserting the antenna into the holder, make sure the loop is toward the middle of the Super Beacon -- not toward the outside.
The depth of the antenna in the holder should be just right -- not too deep and not too high. The picture is just about right.
It will take a little patience and care to keep the holder straight on the base.
As the screw pushes the center plate against the base of the antenna, you will need to adjust the holder so that the connection is solid and straight.
This image shows the holder with its screw all the way in.
In this view you can see the antenna firm and secure in its base. Notice how the loop is toward the center of the device and it is firm against the upright wire.