I’ve written a lot in my other blog posts about my double bazooka antenna. It’s probably my favorite antenna for quick temporary setups.
I’ve tried to make it portable, quick to set-up and easy to change bands.
The original design work came from this website, I’ve refined the design by building a nice center junction box which gives me the ability to change the dipole elements quickly to change the band.
The center junction box consists of a small potting box with three external connections. The SO-239 is the co-ax feed which goes to the radio. The two BNC connectors are for the dipole elements which allows them to be quickly swapped out for different bands of operation.
At the moment I have constructed dipole elements for 20m and 10m bands as these are the bands that I operate on most frequently. In the future I will add to this, probably I will create some 40m elements which I think might come in useful for POTA/SOTA activation’s. The elements are constructed slightly longer than required with a fold back that can be adjusted for tuning. I’ve included eyelets in the ends for guy ropes. All the connectors are heat-shrink insulated for waterproofing. Here’s the complete kit with my 10m and 20m elements:
I’ve also added some brass tags on the elements so I can easily identify the band without having to un-ravel it all.
You can read about some testing I have completed with the antenna in these posts:
2 responses to “A Simple Double Bazooka Dipole Design”
[…] 10m flagpole was ideal for my 20m band double bazooka dipole which worked […]
[…] nice views out over the water and across the country park. The mast was soon up and the 20m band double bazooka hoisted to the top in an inverted V […]