I have been playing with portable antennas for years. When operating portable, the antenna probably has the biggest effect on how well you portable station works. I have quite a few portable antennas. Some are specialty antennas and some are my “go to” antennas. When operating at a park for Parks on the Air (POTA). My Frankentenna is my go to. It has evolved over the years, but now I mostly tweak to get it how I like it. Here is the antenna and its parts:

What makes it a Frankentenna is it uses parts from different companies, mainly from Buddipole and Chameleon. Here is a list of the components and links to their websites:
(1) Buddipole 7 section Lightweight Shock Corded Whip Antenna
(3) Buddipole 22″ accessory antenna arms. I am swapping out the blue arms for black ones to better reduce the visibility of the antenna (out of sight, out of mind)
(1) Chameleon CHA Spike Mount –
(1) Chameleon CHA Hybrid Micro
92) Buddipole Wire Assembly Low Band (66′)

This is the basic kit. With it I can make a vertical antenna, and endfed with a counterpoise, and even a dipole. The kit is pretty lightweight and easily fits into a standard Buddipole bag. While at park campgrounds, I usually run it as a vertical. I keep an arborist throw line and weight in with my station equipment. I have some tweaks and mods I have done. Two that you see here are the phenolic insulator and a mod to the spike.

The spike mod is an improvement on the current ground screw. It was a red plastic knob with about an 8-32 screw thread.

I felt it was too small since most counterpoises have either 1/4″ OR 3/8″ eye on the end. I carefully drilled out the hole and tapped it for 1/4″-20 thread.

This now allows me to use a Buddipole Counterpoise Wire Adapter which is 1/4-20 on one end and 3/8-24 on the other. It gives a more secure connection between the spike and the counterpoise. These are the same adapters that come with the Buddipole Wire Assembly and you can buy them separately finished, it looks like this.

One of the things I didn’t like about the Chameleon Micro was the shackle it comes with. The shackle is used to support the transformer when it is used as an end fed or a dipole since it is too heavy to be supported by the antenna wires. It was always kind of hincky getting the shackle setup right. Now I use the Buddipole Counterpoise Wire Adapters. So much easier and so much lighter.

The other mod is a phenolic (micarta) insulator. This allows me to use the vertical with something other than the Chameleon transformer. An example might be one of my homebrew 9:1 UnUn or a Buddipole coil. The insulator is threaded on one end and has an insert on the other, both 3/8-24.

How does it play? Quite Well. I tested 2 configurations I would most likely use during a POTA activation. The first is a 54′ end fed with a 50’ish counterpoise using the Chameleon Micro. Using my RigExpert Stick Pro I got the following. Format is Band — SWR
160m — 5.7
80m — 3.2
60m — 3.5
40m — 4.1
30m — 3.2
20m — 2.1
17m — 3.7
15m — 1.7
12m — 2.2
10m — 3.6
6m — 2.1
The second setup was using the Micro as a vertical. The antenna is approx 17′ (very close to the Chameleon) and running a 50’ish counterpoise.
160m — 6.7
80m — 3.7
60m — 3.5
40m — 2.4
30m — 1.5
20m — 1.3
17m — 1.3
15m — 1.9
12m — 2.8
10m — 3.1
6m — 1.8
During this last activation, I mainly used the vertical arrangement as that suited the space I had. The antenna performed well. I made 100 contacts here and abroad. To see a map check out my post about my activation at Kolomoki Mounds State Park.

What’s next for this antenna? I have two Black Accessory Arms and a Counterpoise Wire Adapter coming from Buddipole. The arms will make the antenna more stealthy and the extra adapter will reside on the spike. I may try the Buddipole coil to see how it plays and I just got some new toroids to see if they work any better. Overall, I really like this antenna. It’s light and compact and goes up anywhere. The SWR is low enough that almost any tuner, can tune it, even on the low bands.

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